I like the long videos. Your narrative is informative and helpful. Thanks for making these videos. And hey, whoever owns the amp knows they're getting their money's worth.
I definitely enjoy the multi part long form videos, especially on Marshall Jubilee Wombats! I had an original 1987 50 watt Jubilee Wombat combo, bought it new. It was a great amp. Wish I still had it. Please keep making the long form multi part videos.
I have an 87 jubilee 100w head 2555, about to take in for some maintenance so I had watch it all, WOMBAT. I sure hope my amp tech watches Psionic videos!!
Lyle, thank you so much for your videos. Your level of professionalism and technique for repair are excellent. It is refreshing to find a channel geared toward musicians and techs that like repair work and, also, displays a thorough knowledge of of the subject matter.
"wombat"... i'm another viewer that appreciates the long format/realtime tech work that you provide here! so helpful for people (like me) who enjoy working on their own gear. your experience and explanations really helps to build the confidence to tackle these types of repairs. thank you!
great video my friend.i have the same amp and need some issues fixed .just some pots came lose.the amp is all stock used but work amazingly well.glad i keep it all these years.
LOL, At the 16:55 mark you comment that "This is fascinating stuff". For myself it really is! For about a Decade I worked as an Aircraft Instrument Technician, it was one of the best jobs I'd ever had back then. Sadly the pay wasn't enough to support our family and I moved on to greener pastures. I do however miss overhauling Altimeters and the older capacitance meter fuel gauges, either that or I miss the 1990s as compared to current times.
A burrowing plant-eating Australian marsupial which resembles a small bear with short legs - wombat😊 I am a guitarist with too many amps and too few maintenance skills. I am extremely impressed with your knowledge and attention to detail!
Wombat - Thanks. I’ve a lot of equipment that’s aging past life cycle of the electrolytic capacitors and have already replaced a few. However, I have learned several important techniques i was not familiar with (bending cap leads to provide support other than solder for one.
Wombat haha! Love your channel although I’m no technician. Just a guitarplayer who loves Fender and Marshall amps. Learning a lot though! Used to have a JCM 2555 SL. Got to get my Marshall 1987x recapped… Keep it going Lyle! Greetings from The Netherlands.
Very informative video. Your right about the Fender Acoustasonic Jazzmaster advertising drive. Here in the UK it’s coming at us from all directions over the last couple of days and even Normans rare guitars have joined in by featuring one as guitar of the day. £1650 approx $2000 here is very expensive. Be interesting if Fender are still manufacturing them in 5 or 10 years?
Another option to clean things like this is pure acetone, it's often used in labs for degrease things. Depends on the costs and circumstances I suppose (they cost more or less the same). Just be careful with storage (fire hazard) and plastics (isopropyl can dissolve some soft plastics, acetone is stronger at that).
At 36:17, it's not just the temperature differential that prevented the solder ball from sticking to the base of the capacitor terminal ---- the rivet (note the cross head pattern indented into it) that holds the solder terminal to the capacitor is probably aluminum and won't accept solder even if it's sufficiently heated. I have seen these riveted connections fail ---- loosen, or develop oxidation between the contact points ---- on old Nichicon filter caps; which is another reason to be careful not to put tension on the terminals when installing new caps. A little looping in the ground wire, to provide a flexure point, is a good idea. I'd be curious if the rivets in the original Marshall caps will accept solder ---- the way they are riveted suggests they are a copper-based alloy.
Wombat, Brought my 87 silver jubilee to a tech today for a check up and re tube. I asked if he wanted too have a look if the caps needed changing he didn't think it was needed but watching your videos I now think it would probably be a good idea. I now wonder, will my amp need re biassing after replacing the filter caps?
Nice work! Question, I just bought a brand new reissue 2555x 100 watt head, should I check all the mechanical connections on the bolts, screws and pot nuts?
I have only just discovered your channel and can’t wait to watch more wombat action. I studied EE for this kind of stuff and repair oscilloscopes at Tektronix. Not quite as artistic as a musical instrument. Thanks for sharing.
Wambat! New Subscriber. Really enjoying the long format videos. I code from home and have been streaming your channel on the TV in my office all week. Do you have a Patreon site and have you considered any live stream repairs? I enjoy watching Brad's Guitar Garage streams that he posts to TH-cam. Although, I do not do Facebook so I don't get to join them live. Also, I am sure you have heard this before, but as a huge Rush fan going back to early 80's you sound hauntingly familiar to Neil Peart. Kinda freaked me out at first but but it's my issue and I'm dealing with it. :) Thanks for sharing you knowledge.
I haven't looked into the Patreon thing, as this channel is advertising for my amp repair services, rather than being an actual business itself. Between the physical placement of my computer and the bench and my need for new glasses, I think a livestream repair would be farcical. But I've considered a live chat where I answer questions (and can have the computer closer). I don't know if people would be interested. I've heard the Peart comparison before, and I'm flattered. I much prefer that to "the dog on Family Guy" (though in fairness I've never seen the show). I wish any vocal similarities to Peart translated into similar timing...
Lyle, great and informative video, always looking to improve my soldering technique. I notice you don't use a separate flux yet your solder flows beautifully. What type or brand of solder do you use and is it a rosin core? Wombat - Thanks
You do enough work on PCB amps that I would think you'd invest in a vacuum-pump solder-sucker system. As for solder-wick, Chem-wick and the like, to the best of my knowledge all solder-wick has flux on/in it, BUT, with so much off-brand electronics supplies and soldering accessories coming from Asia nowadays,, the quality and chemical makeup of the flux might vary (formulated mostly for lead-free solder perhaps?), and even quality, name-brand solder-wick can oxidize as it ages, and work poorly. ( If it turns reddish brown, it's probably no good). Hey Lyle, do you have a favorite brand of flux? I'm still working with an old plastic jar of Kester rosin that looks like brown Vaseline and smells like pine trees.
At 12:40, they used black-painted or anodized nuts inside the amp, as a ground point?! Very bad form. Or, was that some type of thread-locking compound or lacquer compound painted on the nut afterwards, to be similar to Loctite? My experience has been that some Glyptol-like thread-locking compounds used in Asian-made electronics cause corrosion when exposed to the heat generated by tubes. A somewhat extreme case in point being some Hurricane moniblock hifi amplifiers with (8) 6550 output tubes that I have repaired for a crazy audiophile....
Wombat! Is there an animal that poops in a Jazzmaster shape? 40mins is just the right length for this video. Then again, I have a keen interest, cuz I own a 2553.
With the enhanced partial wrap on the new caps - aren’t you making life difficult for you next time? Is it still easy to remove all of these - and is it necessary? Genuine question - no smart arse intimation included. Thanks. (Edit- wombat😂) ah you answered it later on in narration. Ok thanks.
![เบิ้ล ปทุมราช - อ้ายกินดอง น้องลาบงัว ft. สแน็ก อัจฉรีย์ [OFFICIAL MV]](http://i.ytimg.com/vi/-OK--KaSPcI/mqdefault.jpg)
I like the long videos. Your narrative is informative and helpful. Thanks for making these videos. And hey, whoever owns the amp knows they're getting their money's worth.
Wombat. I love all the videos. The learning never stops.
I definitely enjoy the multi part long form videos, especially on Marshall Jubilee Wombats! I had an original 1987 50 watt Jubilee Wombat combo, bought it new. It was a great amp. Wish I still had it. Please keep making the long form multi part videos.
The clipping/crunch sound is so good!
I have an 87 jubilee 100w head 2555, about to take in for some maintenance so I had watch it all, WOMBAT.
I sure hope my amp tech watches Psionic videos!!
"wombat" nice job I like to hear your view of how the repair should be completed
I like all of the details and tidbits. It is not boring at all. Amp repair videos are very enjoyable and informative.
Lyle, thank you so much for your videos. Your level of professionalism and technique for repair are excellent. It is refreshing to find a channel geared toward musicians and techs that like repair work and, also, displays a thorough knowledge of of the subject matter.
"wombat"... i'm another viewer that appreciates the long format/realtime tech work that you provide here! so helpful for people (like me) who enjoy working on their own gear. your experience and explanations really helps to build the confidence to tackle these types of repairs. thank you!
great video my friend.i have the same amp and need some issues fixed .just some pots came lose.the amp is all stock used but work amazingly well.glad i keep it all these years.
Wombats. I just love those Amp-Tech vids, and you Sir do a wonderfull Job!
Wombat! Love the in depth videos. Up-and-coming techs should take note.
LOL, At the 16:55 mark you comment that "This is fascinating stuff".
For myself it really is! For about a Decade I worked as an Aircraft Instrument Technician, it was one of the best jobs I'd ever had back then. Sadly the pay wasn't enough to support our family and I moved on to greener pastures.
I do however miss overhauling Altimeters and the older capacitance meter fuel gauges, either that or I miss the 1990s as compared to current times.
Peace Peace HK
@@sgt.grinch3299 Thank You Sarge, right back at you Brother.
This is an awesome video. I appreciate the work you did for me and the amp sounds great. Thanks again for all your help. -A
Thank you for the vids a place to feast my mind.
Yes I enjoy your videos
Picking a silver jubilee combo tomorrow. Looks like I’ll be following your video word for word haha
Wombat...I enjoy your vids. Great and relaxing to watch and learn.
wombat
love your content! Greetings from Vienna, Austria
Wombat!! Haha Love the video Lyle, great info and entertaining for my geeky curiosity 👍
Wombat. I respect your work. It's inspiring.
A burrowing plant-eating Australian marsupial which resembles a small bear with short legs - wombat😊 I am a guitarist with too many amps and too few maintenance skills. I am extremely impressed with your knowledge and attention to detail!
Another great and informative vid. Cheers mate :D
Wombat - Thanks. I’ve a lot of equipment that’s aging past life cycle of the electrolytic capacitors and have already replaced a few. However, I have learned several important techniques i was not familiar with (bending cap leads to provide support other than solder for one.
Wombat!
Thanks for the vids Lyle.
Wombat haha!
Love your channel although I’m no technician. Just a guitarplayer who loves Fender and Marshall amps. Learning a lot though! Used to have a JCM 2555 SL. Got to get my Marshall 1987x recapped…
Keep it going Lyle!
Greetings from The Netherlands.
wombat x2. literally my second time watching it, and ill watch it again when my parts come in, im sure.
wombat. Lots of interesting detail in how you do awkward joints etc.
Wombat. I'll also toss in a Tasmanian Devil, seeing as I'm from Tasmania. I must be a freak, I love watching these videos.
Very informative video.
Your right about the Fender Acoustasonic Jazzmaster advertising drive. Here in the UK it’s coming at us from all directions over the last couple of days and even Normans rare guitars have joined in by featuring one as guitar of the day. £1650 approx $2000 here is very expensive. Be interesting if Fender are still manufacturing them in 5 or 10 years?
Wombat's are amazing creatures and very territorial and are good pets too, they love belly rubs and carrots.
Wombat. I appreciate the focus on the fundamentals.
Another option to clean things like this is pure acetone, it's often used in labs for degrease things. Depends on the costs and circumstances I suppose (they cost more or less the same). Just be careful with storage (fire hazard) and plastics (isopropyl can dissolve some soft plastics, acetone is stronger at that).
Wombat! Really enjoy your videos. I would have burns all over my fingers trying to maneuver a soldering iron in those tight spots.
At 36:17, it's not just the temperature differential that prevented the solder ball from sticking to the base of the capacitor terminal ---- the rivet (note the cross head pattern indented into it) that holds the solder terminal to the capacitor is probably aluminum and won't accept solder even if it's sufficiently heated. I have seen these riveted connections fail ---- loosen, or develop oxidation between the contact points ---- on old Nichicon filter caps; which is another reason to be careful not to put tension on the terminals when installing new caps. A little looping in the ground wire, to provide a flexure point, is a good idea.
I'd be curious if the rivets in the original Marshall caps will accept solder ---- the way they are riveted suggests they are a copper-based alloy.
Wombat as long as it takes when it looks good it feels good sounds great
Wombat great video yes I do need out a little bit 😀
DID YOU KNOW THE FENDER ACOUSTASONIC NOW COMES IN A JAZZMASTER SHAPE
Wombat, from Australia!
Wombat ? Slow and steady makes for quality.
Cheerz!
Wombat, Brought my 87 silver jubilee to a tech today for a check up and re tube. I asked if he wanted too have a look if the caps needed changing he didn't think it was needed but watching your videos I now think it would probably be a good idea.
I now wonder, will my amp need re biassing after replacing the filter caps?
Nice work! Question, I just bought a brand new reissue 2555x 100 watt head, should I check all the mechanical connections on the bolts, screws and pot nuts?
I have only just discovered your channel and can’t wait to watch more wombat action. I studied EE for this kind of stuff and repair oscilloscopes at Tektronix. Not quite as artistic as a musical instrument. Thanks for sharing.
Wombat! Also, I didn’t know the Jubilees used diode clipping.
Wambat! New Subscriber. Really enjoying the long format videos. I code from home and have been streaming your channel on the TV in my office all week.
Do you have a Patreon site and have you considered any live stream repairs?
I enjoy watching Brad's Guitar Garage streams that he posts to TH-cam. Although, I do not do Facebook so I don't get to join them live.
Also, I am sure you have heard this before, but as a huge Rush fan going back to early 80's you sound hauntingly familiar to Neil Peart. Kinda freaked me out at first but but it's my issue and I'm dealing with it. :)
Thanks for sharing you knowledge.
I haven't looked into the Patreon thing, as this channel is advertising for my amp repair services, rather than being an actual business itself.
Between the physical placement of my computer and the bench and my need for new glasses, I think a livestream repair would be farcical.
But I've considered a live chat where I answer questions (and can have the computer closer). I don't know if people would be interested.
I've heard the Peart comparison before, and I'm flattered. I much prefer that to "the dog on Family Guy" (though in fairness I've never seen the show). I wish any vocal similarities to Peart translated into similar timing...
wombat 😘
what's the best way to drain the filter caps before working with them
The wombat says There’s a lot of good info learned by staying tuned in to longer form videos. I’m a wombat lol
Devil and good tone are in the details.
TECHSPRAY 1817-10F #4 No Clean Solder Braid 👍
IKR?!
Lyle, great and informative video, always looking to improve my soldering technique. I notice you don't use a separate flux yet your solder flows beautifully. What type or brand of solder do you use and is it a rosin core? Wombat - Thanks
Thanks Kent. Kester Sn60Pb40 .031”
You do enough work on PCB amps that I would think you'd invest in a vacuum-pump solder-sucker system. As for solder-wick, Chem-wick and the like, to the best of my knowledge all solder-wick has flux on/in it, BUT, with so much off-brand electronics supplies and soldering accessories coming from Asia nowadays,, the quality and chemical makeup of the flux might vary (formulated mostly for lead-free solder perhaps?), and even quality, name-brand solder-wick can oxidize as it ages, and work poorly. ( If it turns reddish brown, it's probably no good). Hey Lyle, do you have a favorite brand of flux? I'm still working with an old plastic jar of Kester rosin that looks like brown Vaseline and smells like pine trees.
Wombat! Just did the caps in my 2204 from 1990. Didn't do the ground check though :-(
At 12:40, they used black-painted or anodized nuts inside the amp, as a ground point?! Very bad form. Or, was that some type of thread-locking compound or lacquer compound painted on the nut afterwards, to be similar to Loctite? My experience has been that some Glyptol-like thread-locking compounds used in Asian-made electronics cause corrosion when exposed to the heat generated by tubes. A somewhat extreme case in point being some Hurricane moniblock hifi amplifiers with (8) 6550 output tubes that I have repaired for a crazy audiophile....
Wombat! Is there an animal that poops in a Jazzmaster shape? 40mins is just the right length for this video. Then again, I have a keen interest, cuz I own a 2553.
Wombat for sure!
With the enhanced partial wrap on the new caps - aren’t you making life difficult for you next time? Is it still easy to remove all of these - and is it necessary? Genuine question - no smart arse intimation included. Thanks. (Edit- wombat😂) ah you answered it later on in narration. Ok thanks.
Wombat! Seen a few in my time...
wombat!
Wombat, champions
Wombat 👍
wombat. Also: Iguana... 'cause why not?
Over here in Australia, Wombats are native animals.
I first read that as "naïve."
Which is also true.
wombatttt
Lets go Wombats
So, wombat.
Wombat...10.2.22
A dirty ground is a worthless ground.
Wambat!
I'm still watching but please never consider my behavior as typical or normal.........................
Wombat ;)
Wombat!
Wombat!!
Wombat!!!
Wombat
Pork chop pork chop greasy greasy we beat there team easy easy, here we go Wombats
wombat
wombat XD
Wom*
Wombat.
Wombat 😂
Wombats are adorable but smell REALLY bad !!
Wombat!
wombat
Wombat;)
Wombat
Wombat.
Wombat!
wombat
wombat
wombat
wombat
wombat
wombat
Wombat
Wombat
Wombat
Wombat
Wombat
Wombat
Wombat
Wombat