Totally riveting video. Between you,Mr.Carlson's Lab and D-Lab Electronics there are no equals in the knowledge expressed when it comes to amplifier electronics. Steve
Thanks for this amazing information! I watched this a year ago and now I own a 73 SF that I need to restore. Now I know how to figure everything out and what to play around with. Much appreciated!!
Watch the sneak peek of footage from The Beatles: Get Back that director Peter Jackson just put up yesterday. Nothing but SF Fenders in the studio for the Let It Be tracks. The Beatles mostly used single coil guitars throughout most of their career. As a general rule, single coils tend to produce more highs than humbuckers, and BF Fender amps have more highs than their SF counterparts. As a result, in my humble opinion, Teles & Strats tend to sound better through SF amps while Les Paul type guitars sound better through BF amps. The Beatles seemed to recognize this too. th-cam.com/video/UocEGvQ10OE/w-d-xo.html
@@wildbillhackett I don't think it's true that BF Fender amps have more highs than their SF counterparts, although the SF definitely have more lows (too much!). If anything, the "snubber" caps that CBS sprinkled on the power tubes of 40-50 & 80-100 watt amps reduced highs slightly. The silverfaces in Let It Be were '68 drip edge models, which were transitional between blackface and later silverface.
God Bless and Protect you and your wonderful family. Bless you for sharing your years of wisdom with us and educating your community on how to read schematics. Thank you for sharing what effects each component has on performance and tone. Each one of your educational videos has a wealth of knowledge in them. Very inspirational for our generation and for generations to come. We will take all the commercials they can throw at us. We will win just by being able to continue to receive University education from you. You are an amazing, Humble and Honorable man. This Is The Way!!!
Found your channel not too long ago. I picked the guitar back up after 30 years of car repairs, the hands don't work like they did in my teens. Played with tube radios and now watching your videos I understand tube amps much better then before. I am going to try building a simple tube amp from scratch. Thanks for the great information in all your videos. I always learn something from each of them.
Doug, in the middle to late 60s Fender came out with a copy of the Super Reverb that included four 10-inch JBL speakers. One came into the local shop where I was taking guitar lessons and a legendary guitarist by the name of Skeets McWilliams sat down and played it . At some point he stopped playing and just decided to test. Got-o-mighty that thing would get loud and maintain its clarity and cleanliness at all volumes. It was amazing
I've heard of some early Fender amps with JBL speakers, Jim. Perhaps they were an extra-cost option. That must have been quite a day for you as a lad.....I see that you still remember it over 55 years later.
That may or may not have been a copy; there were folks who replaced the 4x 10" spkrs in a Super with JBLs. I don't know if the factory ever produced JBL-equipped Supers. Holy cow, those were heavy amps. That was a pricy upgrade. Supers were $500 all day long and the speakers were $125 each.
@@pneumatic00 I remember at the time they cost $430.00 here. I do remember laughing at the price w/JBLs. Of course, at $80.00 a week, my dad got a chuckle out of the 430.00. The shop carried another brand of amp, speaker with head, called Standel. I seem to remember it cost the same thing.
good for Alie the ferril cat coming inside and spoiling herself now after 5 years and GOD bless you for loving her in her space and being 5 years patience with her.
Had a '64 in '66 ,And the video brings back memories. Sound you can't not recognize. Can't say enough , about those old cowboy chords...A lot of music came from them.
The recordings are miles better.. Kudos, Uncle Doug, on continually providing great videos for learning to the guitar community, for your wisdom, and now for great quality audio result samples. Merry Christmas to you and yours.
@@UncleDoug Call it nitpicking if you like, but you're obviously doing something different because the guitar sound in this video and the last couple has been much better. This one particularly.
@@UncleDoug i do miss the “ squeeks” after each take- that was patented Uncle Doug viewing\ listening - a pause and a squeek after every line- it was comforting like a warm tea on a cold winter night?
I do the same with metal plates that I have put felt on when I get a ham radio amp in for repairs damaged by usps. At least once a week. Super video as usual.
From Leo: For those control face dents, I use a 5/16" carriage bolt and nut pulling against a 3/8 drive socket. (Like you do when you drag wheel studs into an old hub) Pick the socket size where any scratching is under the knob skirt. Works great and you can go a little at a time. Merry Christmas.
Uncle Doug.......master at work...... I haven't forgotten to send my 1973 Twin Reverb for your look see. Had a change of heart and decided to build some model railroad structures with my first pandemic check. Will be in touch.
🔔🔔😁 Uncle Doug's back since watching all your videos ( over and over ) it has now given me the confidence to start to restore my Vox Ac30 .I've had for over 41 years .first step I built the current limiter .. Ordered all new capacitors and Resistors so far changed C39 and C40 filter capacitors and now no Hum I am only changing what needs changing .I think because I've had the amp all these years I didn't want to send it off to some where for restoration. Because of The anxiety of what's happening to it . Allso still experimenting with my tremolo can .sorry for the long post .but thanks. Stay safe Doug that's all the news from over the pond
@@UncleDougTo be completely Honest with you Doug .before I started watching your videos I wouldn't have even dreamed of touching the Electrics. So give your self a pat on the back from me
Can you just imagine how boring 1950's and 1960's Sci-Fi movies would have been if no one thought to put a tone generator through a reverb tank? Wonderful demo.
What a treasure trove of info you are, Uncle Doug. Bravo on the clarity and the presentation of every video you make.. Thanks so much for posting these videos! Seems like im going thru 5-10 post-it notes every time I watch your channel. Hi to the fur babies.
@@UncleDoug Every time you do a repair on any of those amps, I learn more and more and many thanks for going thru those circuits as there is always space for learning........especially at my age ! ! ! !
As an ex B52 Avionics Tech.........I enjoyed your low flying B52 reference. And the Super Reverb was my gotta have amp when I was 15 (65). This review has put me back on the hunt for one. I'm sure my son won't mind taking it from me when I am done with it. Thanks again Doug. Excellent work my friend.
Dear Uncle Doug and Jack, great Video. This was really hightec-engeneering to compare black- and silver-face circuits and explain the influence reg. tone. Jack and Olli with their great performance made it possible listening results of your work. Thank you very much !
This general time range of medium size Fender amps were about as good as one can get. I have had my 67 Vibrolux Reverb for 52 years, and it still sounds fantastic... I covet no other amp. Different stuff comes and and goes in the world, but I'm always fully satisfied with my oldie and so far have had no desire to swap it for any other.
The level of technical detail on the different amps was just brilliant, and was presented in a completely understandable fashion. In other words, you've done it AGAIN! Thank you Uncle Doug. I really appreciate your unbiased approach in describing differences in bias and their subtle (and not subtle) effects on tone.
Another treasure was given a new life from Uncle Doug, test guitarist obviously a fan of Creedence Clearwater and ZZ Top, All class as usual. Thanks for posting.
Absolutely the best in depth discussion and explanation I've seen on Silverface vs Blackface schematics. You sir are a treasure trove of useful information! Thank you for this video. Now I understand why my "AA270" 74 Super Reverb "bias" knob does what it does... because it's a balance control! Excellent explanation! God bless you Uncle Doug!
A Merry Christmas to you and your family Uncle Doug! As my dad used to say - "education starts in the womb and ends in the tomb!" Thanks for sharing your expertise and knowledge!
@@UncleDoug I'm not the only one who thinks you are an inspiration .. here I found this gentleman on TH-cam singing your praises .. th-cam.com/video/Q7NNVe753do/w-d-xo.html
After whining n moaning bout the excessive weight with my twin with JBL d120s I slurped up a new Super Reverb from a failed store in Midland, began complaining shortly that it , too was a heavy beast! Why I didn’t at least keep the amp n make it into a head, I’ll never know! Awsome amp! Great job by Jack n Ollie on demo! Merry Christmas!
I had a thought Doug, about that extra resistor in the AA270 bias supply. A cap by itself to me is like a tank or a well storing the energy, some waves will still flow across it. However chuck in a resistor and all of a sudden we have an RC filter sending the ripple to ground. I'm loving the respect you're showing these beautiful old amplifiers. All the best from NZ
Great video ! I learned a few more things. I also appreciate how you repair amps with T.L.C. it helps the rest if us keep our standards high. Thanks Doug !
Thank you for this super reverb discussion Doug. Really interesting circuit analysis. As you know I have a super reverb I have questions about. You truly are my uncle now for doing it.
The bias probes have become my favorite part of the repair process. Seeing how much bias isn't being used or that it's way too high and you setting the bias for "optimum" performance! Thank you, Unc!! And Merry Christmas!!
Wonderful video Uncle Doug, there is definitely better tone in the BF amps and your explanation of why this is true is very interesting and useful. Right now my BF SR amp’s output or volume goes down when I turn up the intensity of the tremolo.....hopefully with your videos on tremolo circuits I will find the cause. Rgds
Thanks so much, Alvaro. The 50K RA Intensity pot is a fixed load in the circuit (i.e. the resistance to ground does not change when the pot is adjusted), so this should not be happening. I wonder if your photoresistor is faulty (i.e. too low resistance to ground) ?
@@UncleDoug you were right the neon light next to the photo resistor was loose, I fixed that and now its sounding great and there is no volume loss. Thanx
Well done as usual, Uncle. I really enjoy the contrast of Fender circuits! This very necessary comparator will not only educate the masses, but gives most of your viewership an advantage while pricing Fender vintage amplifiers. This unselfish act is an affirmation of your generous nature. I am floored by this attribute. I wish more hosts were as forthcoming with all matter of fact regarding tube amplifiers. Please remain safe. Enjoy the usual December festivities with your family members. I'm very ready to say goodbye to 2020. This past year has been a modern-day trail of tears for the entire world. Luckily, you're a ray of light in an otherwise dark world. Cheers!
My first proper guitar amp back in 1980 was a $25 bone stock but cigarette burns across the entire front edge, April 1965 Fender Bandmaster head. I absolutely loved that amp! The tone was so rich and thick , and the Tremolo was very useable. After 20-30 great tube amps I can still hear the specialness of my Bandmaster. Basically the tone that got me I can hear on this Cat Power song- (TH-cam video)- *Cat Power - "Cross Bones Style"* which is a Twin Reverb as you can see her play in the video. Chan Marshall (aka Cat Power) has used a Fender Twin for years. Always a good Fender tone regardless of the guitar she's playing. I once had a Silver face Twin Reverb that the previous owner added a single transistor preamp buffer to the Tremolo ch. input. Sounded great!
Far and away the best quality you have produced on your audio demos, and I have listened to them all. Merry Christmas from frosty London, keep up the good work Uncle Doug
Vintage Amp electronics is such a meta for human xp. Im not really into Roman feast days but you sound about 27.5 years younger. Good luck with the zombies and wife. Top pronunciation, el-o-quotient of u in deed. Blessings.
I saw the Anorexic Zombies in 1972, they played so loud it could wake the dead...seriously, keep up the content UD, really helping me in my amp lab, where I "re-animate" a few Marshall zombies of my own!
Another fantastic video from Uncle Doug !!! The way that you explain things is amazing and makes in understandable for people like myself who are just beginning to learn about tube amplifiers. Showing the differences between the different types of circuits and their relevance to the tone of the amplifiers is a great help. You make learning fun, which is what it should be. Thanks for keeping us posted about the kitties. I love animals so much and have always held the view that people who like animals can’t be all wrong (with the exception of Adolph Hitler of course !!!). Take care and here’s hoping for a much better New Year for everybody. Stay safe everyone.
A Christmas double feature from Uncle Doug, thumbs up. The sound came through crystal clear in my headphones and the spectral display is another great idea. Thanks for a very interesting timeline journey of these great amps. Although the P/T number didn't change the high voltage secondary went from 360V to 375V a side in the AA1069 schematic. Just another one of those quirky Fender anomalies I guess. Ollie has the look of a cat that doesn't need to worry about where her next meal is coming from, just as it should be. I wish you, your family and your three kitty cats all the very best for the festive season. Stay healthy, keep away from the Covids. Regards, Jeff.
Audio quality in the testing sessions was fairly good. I wonder what you did since the last comment of mine. Anyways whatever it is, that is enough quality these videos deserve thank you very much. I recommend jumping into adobe premiere if you can I think it will improve slightly more. I would like to be your volunteered filming and editing crew but I am in the UK. And big thanks to jack and oli for the nice tunes... Mary Christmas
Thanks for your continued concern over our audio quality, Ozcan. I have been experimenting with the Audio Bitrate and Sample Rate.....and am glad it has improved our demos.
Uncle Doug, Thank you, thank you, thank you, for all of you videos. My father owns a '65 Pro reverb that I've been clean up and measuring components. It has/had an awful cracking which I will work on. I am in Mesa, Az and was wondering where you get your cloth covered wires. My fathers amp was missing one of the 12" speakers (cut out). I've replaced them both and storing the original. I am still waiting on some comments to arrive, but should have it up and running soon. Keep up the great teachings. Greatly appreciate y our videos.
You're quite welcome, Greg. You can get cloth-covered wire from Antique Electronic Supply, but it's no fun to work with. Unless you seek original appearance, I'd go with vinyl-covered wire.
UD, thanks for this vid, it's a great Christmas gift to your disciples. Wishing you and Mrs UD, and the kitties, and of course Rusty, the best of holidays. Take good care.
The dent on the "speed" text is actually super cool. Makes it look "univibey" psychedelic style text. Another nice schematic bit. Eventually I'll be an amp genius, once I get a fender suitable 1x12" cabinet and bother to finish a champ build...
![ทุกครั้งที่หลับตา (Lucid Dream) - AYLA's [ Official MV ]](http://i.ytimg.com/vi/4i1OBAQyv58/mqdefault.jpg)
Totally riveting video. Between you,Mr.Carlson's Lab and D-Lab Electronics there are no equals in the knowledge expressed when it comes to amplifier electronics. Steve
Wow....thanks so much, Steve :)
I believe that Uncle Doug could take a crack at Stephen Hawkings "A brief history of time" and make it understandable. What a gifted teacher.!!!
Thanks so much. Robert :)
I agree...natural teaching talent.
Thanks for this amazing information! I watched this a year ago and now I own a 73 SF that I need to restore. Now I know how to figure everything out and what to play around with. Much appreciated!!
You're welcome, MM :)
Love the BF vs SF section- please keep that sort of thing going!
I will. The next one is for the Super Reverb. It will be posted soon.
Watch the sneak peek of footage from The Beatles: Get Back that director Peter Jackson just put up yesterday. Nothing but SF Fenders in the studio for the Let It Be tracks. The Beatles mostly used single coil guitars throughout most of their career. As a general rule, single coils tend to produce more highs than humbuckers, and BF Fender amps have more highs than their SF counterparts. As a result, in my humble opinion, Teles & Strats tend to sound better through SF amps while Les Paul type guitars sound better through BF amps. The Beatles seemed to recognize this too. th-cam.com/video/UocEGvQ10OE/w-d-xo.html
@@wildbillhackett I don't think it's true that BF Fender amps have more highs than their SF counterparts, although the SF definitely have more lows (too much!). If anything, the "snubber" caps that CBS sprinkled on the power tubes of 40-50 & 80-100 watt amps reduced highs slightly. The silverfaces in Let It Be were '68 drip edge models, which were transitional between blackface and later silverface.
God Bless and Protect you and your wonderful family.
Bless you for sharing your years of wisdom with us and educating your community on how to read schematics. Thank you for sharing what effects each component has on performance and tone.
Each one of your educational videos has a wealth of knowledge in them. Very inspirational for our generation and for generations to come.
We will take all the commercials they can throw at us. We will win just by being able to continue to receive University education from you. You are an amazing, Humble and Honorable man. This Is The Way!!!
Wow, thanks so much, F1. We are humbled by your very kind words.
Found your channel not too long ago. I picked the guitar back up after 30 years of car repairs, the hands don't work like they did in my teens. Played with tube radios and now watching your videos I understand tube amps much better then before. I am going to try building a simple tube amp from scratch. Thanks for the great information in all your videos. I always learn something from each of them.
Welcome to our channel, VWM. Best of luck with your project. Be sure to let us know how it turns out.
Perfect. It's Sunday morning and the wife and kids are still asleep. True peace, with a lesson from Uncle Doug.
Enjoy it while it lasts, Luke :) Thanks for watching.
Doug, in the middle to late 60s Fender came out with a copy of the Super Reverb that included four 10-inch JBL speakers. One came into the local shop where I was taking guitar lessons and a legendary guitarist by the name of Skeets McWilliams sat down and played it . At some point he stopped playing and just decided to test. Got-o-mighty that thing would get loud and maintain its clarity and cleanliness at all volumes. It was amazing
I've heard of some early Fender amps with JBL speakers, Jim. Perhaps they were an extra-cost option. That must have been quite a day for you as a lad.....I see that you still remember it over 55 years later.
That may or may not have been a copy; there were folks who replaced the 4x 10" spkrs in a Super with JBLs. I don't know if the factory ever produced JBL-equipped Supers. Holy cow, those were heavy amps. That was a pricy upgrade. Supers were $500 all day long and the speakers were $125 each.
@@pneumatic00 I remember at the time they cost $430.00 here. I do remember laughing at the price w/JBLs. Of course, at $80.00 a week, my dad got a chuckle out of the 430.00. The shop carried another brand of amp, speaker with head, called Standel. I seem to remember it cost the same thing.
good for Alie the ferril cat coming inside and spoiling herself now after 5 years and GOD bless you for loving her in her space and being 5 years patience with her.
Thanks, Arlo. We fed and cared for Ollie for many years and were finally happy that she chose to live her remaining years indoors with us.
Had a '64 in '66 ,And the video brings back memories. Sound you can't not recognize. Can't say enough , about those old cowboy chords...A lot of music came from them.
That was a good one to have, Rothbe......definitely one of Leo's crowning achievements.
@@UncleDoug Yes, sir, it was. I want to wish you and your family, a MERRY CHRISTMAS & a HAPPY NEW YEAR.
Few things are as relaxing as Uncle Doug running down an amp and fencing the yard!
Think of us as your comfort blanket, like Linus in Peanuts.
Catching up, binge watching UD videos... today Life is good. Thanks UD!!!!
The pleasure is ours, K.
Analysis of circuits is superb... excellent class.
Thanks so much, Jennifer.
Awesome video...especially at 20:44 where Star Trek sound fx kicked in!
Glad you enjoyed it, Peter.
The recordings are miles better.. Kudos, Uncle Doug, on continually providing great videos for learning to the guitar community, for your wisdom, and now for great quality audio result samples. Merry Christmas to you and yours.
Thanks so much, SR. It's great to hear something positive, instead of nit-picking about microphone placement, etc. :)
You did improve something, didn't you ?
Anyway, this amp sounds fantastic !
All that nitpicking has paid off! Hopefully i didn’t steal that line from mrs uncle doug 😅
@@UncleDoug Call it nitpicking if you like, but you're obviously doing something different because the guitar sound in this video and the last couple has been much better. This one particularly.
@@UncleDoug i do miss the “ squeeks” after each take- that was patented Uncle Doug viewing\ listening - a pause and a squeek after every line- it was comforting like a warm tea on a cold winter night?
Thanks Once again Uncle Doug for sharing your wealth of knowledge.
The pleasure is mine :)
That may be the best sounding (to my ears) Fender I've seen you work on. Incredible tone.
I agree, Bert, that Super Reverbs are, in general, as good-sounding as any amp you will ever hear.
I do the same with metal plates that I have put felt on when I get a ham radio amp in for repairs damaged by usps. At least once a week. Super video as usual.
Thanks, Monty :)
Was fascinated by your video even before you brought Creedence into it! That is most definitely the best use of a great amp. Best wishes, Doug x
Thanks for watching, FS. Likewise to you all :)
I agree! I’m glad, for our benefit, Uncle Doug is obviously a Creedence fan! Great test selection for our listening enjoyment!😊😎👍
I used to employ an oscillator/tone generator as a musical instrument- typically slathered with echo. Great video !
Thanks, Davy.
From Leo: For those control face dents, I use a 5/16" carriage bolt and nut pulling against a 3/8 drive socket. (Like you do when you drag wheel studs into an old hub) Pick the socket size where any scratching is under the knob skirt. Works great and you can go a little at a time. Merry Christmas.
Thanks, Barb. Likewise :)
These schematic run throughs are the best thing on the internet.
Thanks so much, Jo. I'll do some more :)
Uncle Doug.......master at work...... I haven't forgotten to send my 1973 Twin Reverb for your look see.
Had a change of heart and decided to build some model railroad structures with my first pandemic check.
Will be in touch.
Take your time, John. I'm swamped with repair work for the next two months, so please contact me then......and be sure to save some of the 2nd check.
Best sounding demo I've heard you do. Thanks for sharing.
Thanks !! Glad you like it, SS.
Thanks as always uncle Doug and a happy holiday to ollie and jack
Likewise to you and yours, '63.
🔔🔔😁 Uncle Doug's back since watching all your videos ( over and over ) it has now given me the confidence to start to restore my Vox Ac30 .I've had for over 41 years .first step I built the current limiter .. Ordered all new capacitors and Resistors so far changed C39 and C40 filter capacitors and now no Hum I am only changing what needs changing .I think because I've had the amp all these years I didn't want to send it off to some where for restoration. Because of The anxiety of what's happening to it . Allso still experimenting with my tremolo can .sorry for the long post .but thanks. Stay safe Doug that's all the news from over the pond
That's great news, Shaun. So glad you're putting the video knowledge to good use. Best of luck with your project.
@@UncleDougTo be completely Honest with you Doug .before I started watching your videos I wouldn't have even dreamed of touching the Electrics. So give your self a pat on the back from me
I love how you simply and artistically show us your well put together logic. Beautiful sir.
Thank you kindly, Mike. Hopefully, my wife will read this and change her opinion ;)
Can you just imagine how boring 1950's and 1960's Sci-Fi movies would have been if no one thought to put a tone generator through a reverb tank? Wonderful demo.
Yes, indeed. Thanks, Paul :)
wish i lived near you and could just walk in there with my vibro-verb. You da man! Keep up the good work :)
I wish you could also, SSD. Thanks !!
What a treasure trove of info you are, Uncle Doug. Bravo on the clarity and the presentation of every video you make.. Thanks so much for posting these videos! Seems like im going thru 5-10 post-it notes every time I watch your channel. Hi to the fur babies.
Thanks Bob. We're glad the videos are helpful :)
Holy smokes, you get some beautiful stuff. Thanks for bringing us along UD.
You should see the amps I currently have on hand for repairs......incredible stuff, so stay tuned.
@@UncleDoug Every time you do a repair on any of those amps, I learn more and more and many thanks for going thru those circuits as there is always space for learning........especially at my age ! ! ! !
Another fabulous episode...nice work on the face plate too.
Thanks twice, Ray :)
As an ex B52 Avionics Tech.........I enjoyed your low flying B52 reference. And the Super Reverb was my gotta have amp when I was 15 (65). This review has put me back on the hunt for one. I'm sure my son won't mind taking it from me when I am done with it. Thanks again Doug. Excellent work my friend.
Thanks so much, Phil. Good luck with your hunt. Were you ever stationed at Biggs AFB ?
I think I'm learning more here than from any of the tube amp books. The Super Reverb sounds awesome!
Thanks twice, H :)
Jack & Ollie opening with some ZZ Top... very nice!
They're big fans of Billy and the crew.
Dear Uncle Doug and Jack, great Video. This was really hightec-engeneering to compare black- and silver-face circuits and explain the influence reg. tone. Jack and Olli with their great performance made it possible listening results of your work. Thank you very much !
You're welcome, Klaus.....so glad you enjoyed the video :)
This is by far the best sounding amp to my ears in quite a while in your series.
Thanks, Bill. We really enjoyed it in person, too. It has great SR tone.
This general time range of medium size Fender amps were about as good as one can get. I have had my 67 Vibrolux Reverb for 52 years, and it still sounds fantastic... I covet no other amp. Different stuff comes and and goes in the world, but I'm always fully satisfied with my oldie and so far have had no desire to swap it for any other.
To me, that amp sounds VERY nice. It's always a pleasure to find that you've uploaded a video. Take care, Uncle Doug!
Thanks, Michael. You too :)
Love your idea about shorting an RCA jack for the tremolo. Beautiful work sir!
Thanks, David......it really works :)
Great video! Really love the tone of this amp. Thanks for the CCR tunes in the demo.
Thanks, Bill. Glad you enjoyed it. We are trying to include some new material :)
I agree! Always loved CCR!😎👍
Nice to hear some Ollie & Jack Fogerty!
He's one of their idols :)
The level of technical detail on the different amps was just brilliant, and was presented in a completely understandable fashion. In other words, you've done it AGAIN! Thank you Uncle Doug. I really appreciate your unbiased approach in describing differences in bias and their subtle (and not subtle) effects on tone.
Thanks, M. Glad you enjoyed it :)
Very informative, as always. Lessons learned. Thank you, Uncle Doug!
You're welcome. Glad you enjoyed it
I have run light bulbs that have become unglued from their screw brass holders - amazing the vacumm holds up still !
You can use super glue to rejoin the glass to the base, as long as the vacuum has not been compromised.
That amp sounds so good, wonderful.
Thanks, Donald :)
Yay!!! Back with the fun and especially the education love it Uncle Doug Thank You !!!!
You are very welcome, Charles.
What a wonderful way to wake up on a Sunday morning.
Thanks for joining us, PP.
Another treasure was given a new life from Uncle Doug, test guitarist obviously a fan of Creedence Clearwater and ZZ Top, All class as usual. Thanks for posting.
We try to cover all the bases, Keith. Our pleasure :)
Good morning Uncle Doug. Thanks for the videos you post. Always enjoyable.
My pleasure, Mike. Thanks !!
Excellent 'Ampthology', on the Super! Thanks, again, for stuffing my brain; with more amp info.
Thanks, Tomas. It was a pleasure.
Thanks for putting in the time and effort to make TOP NOTCH videos for the community. We’re definitely enjoying the second video features as well!!!
You're welcome, Mate. That's good news.
Absolutely the best in depth discussion and explanation I've seen on Silverface vs Blackface schematics. You sir are a treasure trove of useful information! Thank you for this video. Now I understand why my "AA270" 74 Super Reverb "bias" knob does what it does... because it's a balance control! Excellent explanation! God bless you Uncle Doug!
Thanks so much, BCL. I'm glad you enjoyed the video.
A Merry Christmas to you and your family Uncle Doug! As my dad used to say - "education starts in the womb and ends in the tomb!" Thanks for sharing your expertise and knowledge!
Thanks so much, Shyam. Your dad was a very wise man :)
@@UncleDoug I'm not the only one who thinks you are an inspiration .. here I found this gentleman on TH-cam singing your praises .. th-cam.com/video/Q7NNVe753do/w-d-xo.html
The most in depth guitar amp videos on TH-cam - Thanks for your service Douglas
Thanks so much, Mike. We appreciate your nice comment.
Some very pleasant sounds there Doug... great video!
Thanks so much, Brian :)
Thank you for sharing your technical expertise in such an entertaining manner.
I hope you and yours have a fantastic holiday.
You're quite welcome, Mack. Likewise :)
Hello Uncle Doug, it sounds so good, pure and clean, I love this kind of tone. Again, wonderfull job.
Thanks so much, Ed. Glad you like it!
After whining n moaning bout the excessive weight with my twin with JBL d120s I slurped up a new Super Reverb from a failed store in Midland, began complaining shortly that it , too was a heavy beast! Why I didn’t at least keep the amp n make it into a head, I’ll never know! Awsome amp! Great job by Jack n Ollie on demo! Merry Christmas!
I guess it's better to have two amps you can't lift than no amps at all, Joe. Thanks so much from all of us......MC to you all.
I had a thought Doug, about that extra resistor in the AA270 bias supply. A cap by itself to me is like a tank or a well storing the energy, some waves will still flow across it. However chuck in a resistor and all of a sudden we have an RC filter sending the ripple to ground. I'm loving the respect you're showing these beautiful old amplifiers. All the best from NZ
Thanks for your helpful input and nice comments, Blaine.
This is probably your best sounding amp demo to date
Thanks, Ian. Several others have said the same :)
Nice clean amp, its really a beauty for sure. Super Reverbs rule.
Thanks, 60. Yes, they do :)
Great video ! I learned a few more things. I also appreciate how you repair amps with T.L.C. it helps the rest if us keep our standards high. Thanks Doug !
Thanks, Jason. I'm glad the videos are helpful :)
Thank you for this super reverb discussion Doug. Really interesting circuit analysis. As you know I have a super reverb I have questions about. You truly are my uncle now for doing it.
I'm glad the video was informative, MF :)
The bias probes have become my favorite part of the repair process. Seeing how much bias isn't being used or that it's way too high and you setting the bias for "optimum" performance! Thank you, Unc!! And Merry Christmas!!
You're welcome, Abe. Likewise on the Christmas wishes.
An outstanding video, so much great information!! I had to add the 0.022UF cap to ground on my 68 Bandmaster reverb to stop the tremolo thumping
Thanks, Big Joe. Yes, that is a popular thump stopper ;)
Wonderful video Uncle Doug, there is definitely better tone in the BF amps and your explanation of why this is true is very interesting and useful. Right now my BF SR amp’s output or volume goes down when I turn up the intensity of the tremolo.....hopefully with your videos on tremolo circuits I will find the cause.
Rgds
Thanks so much, Alvaro. The 50K RA Intensity pot is a fixed load in the circuit (i.e. the resistance to ground does not change when the pot is adjusted), so this should not be happening. I wonder if your photoresistor is faulty (i.e. too low resistance to ground) ?
@@UncleDoug you were right the neon light next to the photo resistor was loose, I fixed that and now its sounding great and there is no volume loss. Thanx
Fantastic as always, and I'm loving the tech detail schematic comparisons at the end. Very helpful and informative.
Thanks, GL. I'm glad you enjoyed the video.
Ollie and Jacks musicianship have greatly improved.Thanks for another great video, Merry Christmas !
Thanks, Phil. Same to you all.
Well done as usual, Uncle. I really enjoy the contrast of Fender circuits! This very necessary comparator will not only educate the masses, but gives most of your viewership an advantage while pricing Fender vintage amplifiers. This unselfish act is an affirmation of your generous nature. I am floored by this attribute. I wish more hosts were as forthcoming with all matter of fact regarding tube amplifiers. Please remain safe. Enjoy the usual December festivities with your family members. I'm very ready to say goodbye to 2020. This past year has been a modern-day trail of tears for the entire world. Luckily, you're a ray of light in an otherwise dark world. Cheers!
Wow....Thanks so much, Alex. Merry Christmas to you and your family, with best wishes for a much better 2021.
My first proper guitar amp back in 1980 was a $25 bone stock but cigarette burns across the entire front edge, April 1965 Fender Bandmaster head. I absolutely loved that amp! The tone was so rich and thick , and the Tremolo was very useable. After 20-30 great tube amps I can still hear the specialness of my Bandmaster. Basically the tone that got me I can hear on this Cat Power song- (TH-cam video)- *Cat Power - "Cross Bones Style"* which is a Twin Reverb as you can see her play in the video. Chan Marshall (aka Cat Power) has used a Fender Twin for years. Always a good Fender tone regardless of the guitar she's playing.
I once had a Silver face Twin Reverb that the previous owner added a single transistor preamp buffer to the Tremolo ch. input. Sounded great!
Thanks for sharing with us, Paul.
Far and away the best quality you have produced on your audio demos, and I have listened to them all. Merry Christmas from frosty London, keep up the good work Uncle Doug
Thanks so much, Ross. I have been experimenting with the Bitrate and Audio Sample Rate in my video program. Merry Christmas to you all :)
Wow Doug, amazing content as always.
👍
Glad you enjoyed it, Mick.
Cannot wait for the first of Zozi, Happy New Year and hope to hear from you soon !
Same to you, Paul :)
Very interesting--I wish one of these would show up on my bench. Merry Christmas belated and all the best in 2021 !!!
I hope so too, Mr. CC. Likewise to you all.
Vintage Amp electronics is such a meta for human xp. Im not really into Roman feast days but you sound about 27.5 years younger.
Good luck with the zombies and wife.
Top pronunciation, el-o-quotient of u in deed.
Blessings.
Thanks, GL.
Nice vid Uncle Doug. I like how you repaired that hard hit with a C -clamp.
Thanks, Phil. Glad you enjoyed the vid.
Excellent video Uncle Doug !! Thanks !!
You're welcome, Donald. Glad you liked it.
I saw the Anorexic Zombies in 1972, they played so loud it could wake the dead...seriously, keep up the content UD, really helping me in my amp lab, where I "re-animate" a few Marshall zombies of my own!
Will do, DS. Thanks !!!
I owned a Fender super reverb once. Made the biggest mistake in selling it. Loved that Amp.
Many people share your feelings, IMO.
Hope you are having a safe and healthy New Year, Uncle Doug. Your videos are the best.
Thanks, SB. I am.....hopefully you are too :)
As always great content Mr Uncle Doug. I find the added Schematic explanations especially helpful and interesting.
Thanks, Curtis. I'm glad you enjoy the videos.
Here's a belated Happy New Year to you and yours Uncle Doug! Here's to a wonderful 2021!
Thank you kindly, MJ. Likewise to you and your family.
Thanks for the great videos this year Doug! Merry Christmas to you all and the critters. Lovely to see Ollie in her forever home.
You're quite welcome, RD. Likewise to you and yours.
The story of the SR circuitry is super interesting
That's great to hear, D2. We'll do more circuit reviews for you.
Another fantastic video from Uncle Doug !!! The way that you explain things is amazing and makes in understandable for people like myself who are just beginning to learn about tube amplifiers. Showing the differences between the different types of circuits and their relevance to the tone of the amplifiers is a great help. You make learning fun, which is what it should be. Thanks for keeping us posted about the kitties. I love animals so much and have always held the view that people who like animals can’t be all wrong (with the exception of Adolph Hitler of course !!!). Take care and here’s hoping for a much better New Year for everybody. Stay safe everyone.
Thanks so much, Robin. I'm glad you enjoyed the video and hope you and your family have a wonderful new year.
Nice repair U D ... A touch of CCR ,ZZ Top and Chris Isaac ... Sweet ... Good vid ... Like the schematic exclamations as well ...
Thanks, Ed. Glad you liked it :)
A Christmas double feature from Uncle Doug, thumbs up. The sound came through crystal clear in my headphones and the spectral display is another great idea. Thanks for a very interesting timeline journey of these great amps. Although the P/T number didn't change the high voltage secondary went from 360V to 375V a side in the AA1069 schematic. Just another one of those quirky Fender anomalies I guess. Ollie has the look of a cat that doesn't need to worry about where her next meal is coming from, just as it should be. I wish you, your family and your three kitty cats all the very best for the festive season. Stay healthy, keep away from the Covids. Regards, Jeff.
Thanks for your nice comments and holiday wishes, Jeff. Ollie and I wish you all a very Merry Christmas.
Great work sir. Happy Holiday.
Thanks, James. Likewise :)
Another great Video @uncledoug
Merry Christmas to you and your kin from us in the UK
Thanks, Richard. Likewise to you all.
Audio quality in the testing sessions was fairly good. I wonder what you did since the last comment of mine. Anyways whatever it is, that is enough quality these videos deserve thank you very much. I recommend jumping into adobe premiere if you can I think it will improve slightly more. I would like to be your volunteered filming and editing crew but I am in the UK. And big thanks to jack and oli for the nice tunes... Mary Christmas
Thanks for your continued concern over our audio quality, Ozcan. I have been experimenting with the Audio Bitrate and Sample Rate.....and am glad it has improved our demos.
That tremelo sound is good stuff
Yes, indeed :)
Thanks Uncle Doug!
You're welcome, Jason.
Uncle Doug, Thank you, thank you, thank you, for all of you videos. My father owns a '65 Pro reverb that I've been clean up and measuring components. It has/had an awful cracking which I will work on. I am in Mesa, Az and was wondering where you get your cloth covered wires. My fathers amp was missing one of the 12" speakers (cut out). I've replaced them both and storing the original. I am still waiting on some comments to arrive, but should have it up and running soon. Keep up the great teachings. Greatly appreciate y our videos.
You're quite welcome, Greg. You can get cloth-covered wire from Antique Electronic Supply, but it's no fun to work with. Unless you seek original appearance, I'd go with vinyl-covered wire.
Wow that amp sounds amazing. At one point that trem almost sounded like chorus.
Thanks, Bryan.
As usual knowledge with tons of know how!!
Thanks !! Glad you enjoyed it, Russell.
UD, thanks for this vid, it's a great Christmas gift to your disciples. Wishing you and Mrs UD, and the kitties, and of course Rusty, the best of holidays. Take good care.
It was our pleasure, RF. Likewise to you and yours.
VERY COOL VIDEO...I LEARNED SOMTHING...THANKS
Glad you enjoyed it, Eddie.
@@UncleDoug love creedance too
The dent on the "speed" text is actually super cool. Makes it look "univibey" psychedelic style text. Another nice schematic bit. Eventually I'll be an amp genius, once I get a fender suitable 1x12" cabinet and bother to finish a champ build...
Thanks, Yup. Good luck with your projects.
8:04 Nice to see you are using such a good quality sour cream in this amps Uncle Doug! Jokes aside, as always great work!
Only the best will do, T. Thanks !!!
A dollop'll do, but Jack and Ollie can have two!
Another great lesson....always time well spent...Merry Christmas and Happy New Year to you and your family...🎅🎅🍭🍭👍👍👍
Thanks, Doc. Same to you and yours.