Restoration of a Wurlitzer 1015 Jukebox Sound System
ฝัง
- เผยแพร่เมื่อ 4 ส.ค. 2024
- In this offbeat video, we will completely restore the sound system of Wurlitzer's most popular jukebox: the 1946-1947 Model 1015. Starting with conversion of the tonearm to track properly with a modern diamond ceramic cartridge, we will then rebuild the amplifier and volume control box, modifying them to provide optimum tone and volume with the modern cartridge, concluding with proper biasing of the 6L6 output tubes. Throughout this process, circuit diagrams will be analyzed and each step will be explained. An audio demo of the final product will be provided using guitar input.
At the conclusion we will feature a video provided by a talented viewer, William Bock, demonstrating his hand-built Valco 6161 amplifier. He can be reached on Instagram at old_currents_am... and his TH-cam Channel link is youtube.com/@Warfratcoonhound... . Please address any inquiries to him personally. Thanks !!
If you enjoy videos like this one, please SUBSCRIBE to our channel and consider becoming a Patreon patron at / uncledougsvintageamps or making a PayPal donation to dldcam@aol.com. NOTE: We receive NO advertising revenue and rely strictly upon our viewers for support.
I have posted other videos featuring this particular jukebox: • How the Wurlitzer 1015... and • How the 1946-47 Wurlit... - เพลง
![[TH] G2 vs PRX | EDG vs FUT - VALORANT Champions 2024 DAY 4](http://i.ytimg.com/vi/Bkr_qM7dIaM/mqdefault.jpg)
![CAMPปลิ้น | EP.79[1/2] แก๊งไทบ้านพาบุกเมืองบั้งไฟโก้ ยโสธรรรร!!!](http://i.ytimg.com/vi/Ldr3_fvTEXk/mqdefault.jpg)
UNCLE DOUG!!! YOU'RE BACK! I'll speak for everyone and say, we missed you!
Exactly....
Here, hear! (Sic) Welcome back Uncle Doug!
Thanks, MRM. We're already working on our next video.
You took the words right out of my mouth
Yes, Yes, Yes…
Welcome back!!! We all missed your warm personality and easy-to-follow teaching tecniques!
Thanks so much for the nice welcome, Baja.
Uncle Doug, your depth of knowledge always amazes me. I really don’t know of any other person on or off TH-cam who can modify a 1946 jukebox to work with modern records, build hot rods, and repair/modify vintage amps. You are truly outstanding, sir. Thanks for sharing your knowledge with us. It is very much appreciated.
You're quite welcome, R. Thanks for the very nice comments :)
Great stuff, a jukebox amp makes a nice change and an interesting comparison.
Thanks, Dave. That's exactly what we were hoping for.
you are the gold standard of Tube Amps
Wow!! Thanks, Lane :)
This was a treat. Any subject you cover is worth the time. Thanks for being one of the best teachers. ❤
Thanks for your very kind words, SS.
NOTE: Several viewers voiced concerns regarding the apparent absence of RIAA Equalization (a rather complex but interesting, topic.....look it up on YT if you're interested). It's been my experience that the significant increase in input impedance and use of a 1 meg VC pot results in good bass response......plus, don't forget the 18" speaker, which does some "equalization" on its own. In the rare case that less treble is desired, I have occasionally added a trim pot in the VC Box allowing varying amounts of high frequency to leak to ground through a low-value capacitor (value selected by trial and error). Regardless, the warm "jukebox tone" is quite evident.....and can be heard in one of my earlier videos featuring the W-1015: th-cam.com/video/htbN7-vxUbg/w-d-xo.html
Thanks for doing what you do on here. I always learn a lot from watching these videos. You have a real work of art in that 1947 Wurlitzer! I appreciate you showing it in your video. Take care!
You're welcome, W1 :)
As always, a pleasure to watch, so soothing and everyone is glad you are fine.
Thanks, Thomas :)
Love Ollie’s and Jack’s guitar playing! So good to see another fantastic and informative video, Uncle Doug! You’re the best!
Thanks so much, Avi :)
Wonderful!!! A real blast from past. There was a Jukebox like that in The Lions Den the Tuck Shop in my High School in the 60s. Thanks for the memories. Mike
Glad you enjoyed it, Bella.
Great to have you back
Thanks, BC :)
Great video. Two of my favorite things I love about North Tonawanda, New York. Wurlitzer juke boxes and big block Chevrolet engines were manufactured there!
A fine duo indeed :) Thanks for the info, FP.
Hi! This video reminds me of a visit I made to the Shure company near Chicago to attend a lecture on the history of record player cartridges. Fun memories 😊
Glad it brought back fond memories, Luis :)
An Uncle Doug sighting! Good to see you, old friend.
Thanks, Brad. At my age, it's good to be seen (upright) :)
Functional art those old j-box's from that era, interesting subject. Still repairable after 75ish years.
Made to last, Andrew. Thanks !!
It’s a fantastic diversion of your talent Uncle Doug. The original jukebox videos and the conversions are some of my favorites and they seemed to bring some “likes”. The guitar amp vids are top notch too, also some of my faves. Please take care Uncle Doug and stay awesome!
Thanks so much, Matt. Will do :)
So glad to see Uncle Doug has posted again. This makes my entire day!
We're happy to hear it, M :)
A few things I love hearing 1) guitars with P90 pickups, 2) guitars through 15" speakers. Great job and thanks for sharing.
Thanks, Joe. I guess we're two for two :)
It's good to see you back, Uncle Doug!
Thanks, DH :)
Outstanding as always. As much as I enjoy you guitar amp restorations it's fascinating to see other period contraptions. Cheers rich
Thanks, Rich. Glad you enjoyed it.
Those old jukeboxes sure did sound good. My parents had one of those console record players and it rocked. It's the tubes
Yes, indeed. Thanks, MM :)
Jack and Ollie were overheard at the catnip cantina wondering whose couch they need to stop scratching to get some face time in these videos . If they go union , you'd be the lesser of 60/40 for anymore of their help . Just say'n . :o) Thanks UD , for the sock hop memory .
They have been on tour for the past few months.....just returned in time to play on this video :)
Great to see you back up and running - hope that heat has subsided. Great video as ever, stay well! Paul in the UK.
Thanks, Paul. It has.....somewhat.
So many,many years ago worked on a Wurlitzer jukebox that used a similar electrodynamic speaker. It used a separate 5U4 tube supply to power the speaker magnet. Had an amp similar to the one shown in this film. A friend of ominous and I rebuilt the amp and supply for the box. It played 78. The speaker system had a tweeter as well. Sounded great when finished. Also redid the motor in its auto TT. Can’t remember the models-was over 40 yrs ago!
Thanks for sharing, Rex.
I’m 50 years old. You are the best teacher I’ve ever had. I love your videos and I hope you are well. 🤟🏻
Thanks so much, PS. We really appreciate your comments.
Great to see that you Sir are back! God bless you!
Thanks :) Likewise.
I missed your jukebox videos. This video just ties many of your loves together and that is why I come here.
You weren't even remotely testing my love of this stuff.
Glad to hear it, PMD. Thanks !!!
Just brilliant. So detailed and yet still comprehensible. You're an absolute legend.
Wow....Thanks so much, William :)
Straight forward, informative teaching excellence as always and uninterrupted by adverts, makes it a real pleasure to take in your wealth of knowledge , thank you Doug.
Thanks so much for your very nice comments, Rick :)
5000 tube amp repairs under my belt and I still learn several things each time I watch you. Stuart
Glad to hear it, Stuart :)
Welcome back Uncle Doug! You should partner with a low run record producer to create your own 45 rpm test vinyl. You might be able to swing a cool contra deal just for the asking. This way you can have a great way of testing other jukeboxes and other vinyl spinners.
I am really glad you are back Uncle Doug. Your videos are thoroughly informative, entertaining and insightful.
Thanks so much for your very kind words, JF. Back in the 80's Rhino Records produced a bunch of popular 45 RPM hits on 78 RPM records, so they could be played in vintage jukeboxes. Those records are quite valuable now.
Great Stuff! I wish I could explain how you just sent me down Memory Lane. The Engineering of this unit is Totally Awesome.
Thanks, LW. So glad you enjoyed it :)
Always really happy to see another uncle Doug video uploaded
That's good to hear, KC :)
It's great to have you back Uncle and once more another deeply fascinating restoration of a rare item.
All the very best to you Sir and keep 'em comin'!
Alex from Scotland 😁
Greetings, Alex, and thanks for the nice comments :)
When I saw Wurlitzer I was thinking organs. I forgot they did jukeboxes too. And it's red! I loved the jukebox in the arcade in the 70's. I'm sure you'll have it up and running and ready to rock.
The sound system is going into a friend's jukebox, Sly, and he is doing the restoration. He does good work :)
I did an image search for the original pickup for that beast, and it is truly mammoth! When I had a job at an electronics wholesaler in the early 70's, we had an old juke box renter who would buy cases of Astatic #51-3 cartridges and needles to boot for all his conversions. I don't think he had anything this old, though! Lovely fidelity from that setup! I recently worked on the opposite end of the spectrum - a Duo-sonic record player about 1955 vintage - a monster Astatic Crystal cartridge with about 1.5 V of output (yes, volt!) feeding directly to the grid of the 25L6. It's the most simple piece of audio gear I've ever worked on! Didn't sound nearly as sweet as your Wurlitzer! Looking forward to the next one, Doug!
Thanks for sharing this with us, 87. The original horseshoe-magnet cartridge for both pre and post-war Wurlitzer jukeboxes was indeed a formidable chunk of metal, completely filling the entire circular tone arm head and weighing several ounces.
Beautiful light show at the end from the jukebox.
Glad you enjoyed it, Spike :)
Uncle Doug is back!!!! This thing is so cool.
Glad you enjoyed it, JL.
I used to restore jukeboxes in the 80s when I was in High School.
They were quite popular back then......not as much now.
Great video, and I feel like we just scratched the surface in your discussion of the circuit design and electrodynamic field coils. Refreshing and interesting, and I always feel that if I’m not careful, I just might learn something!
Thanks, Febo. I have posted an earlier video about the different types of speaker used in guitar amps,.
Hello uncle Doug. I'm happy to see you again.
The feeling is mutual, Antonio :)
Very interesting ! Unusual circuit, very different from usual guitar tube amps. As you said, some new tools in the toolbox 👍
Glad you enjoyed it, 74C :)
I'm not much of an electronics guy, but I love good old technology - and I love to experience people who work lovingly and respectfully with it.
Then you've come to the right place, W ;)
How cool! We used to play a community center in Palatka, Florida back around 1964-65 ... One of the songs that you could still choose, was Buddy Holly's "Maybe Baby." That place was like the Happy Days TV show. When I grow up and get rich, I am going to have one of these Wurlitzers, a couple pin ball machines, and a Chris-Craft 1950's runabout like you would find at Kingsley Beach, Florida!
Let me know when you're ready to buy the jukebox, TT.
Hah-hah! And LOL's! Even if I had the dough, my wife would never let it in the house!! 😞@@UncleDoug
It's your choice, TT.....wife......or jukebox ;)@@Tonetwisters
It's always a GREAT day when I have a new Uncle Doug, my favorite Uncle, video!
Thanks so much, VTA :)
I could listen to Olly and Jack all night Uncle Doug, Four months is far too long though for a prolific TH-camr such as yourself. Please produce more great stuff as soon as you can. Nuts.
Thanks so much, BN. Just because you were so nice, we will be posting a new video very soon :)
Perfect! @@UncleDoug
Thanks, BN :)
Gosh, I was worried about this guy. Thank goodness he’s back. I’ve got a basement full of vacuum tubes, chassis, transformers, and speakers I’ve been hoarding up from sales. I’ve got to start making stuff.
Thanks, SC.....now get down in that basement and get to work :)
Good to see you back Uncle Doug, I was getting a little worried we wouldn't see you again. I'm a guitar player and love the guitar amp work but also love everything else you do tube amp or otherwise!
Thanks so much, L. You make us feel welcome :)
Another cool Uncle Doug video. Great to see how they used to do that quick start filament circuit. Always learn something new from our favorite uncle.
Glad you enjoyed it, Kim :)
Great to have you back. Great vid of a nice amp!
Thanks, RG :)
Every day I hope for a new video from you Doug…Today was a good day
I'm glad to hear it, Milo :)
Glad you're back!!! Excellent!!!👍👍👍👍
Thanks, Doc :)
Good to hear from you again, Uncle Doug!
Thanks, Mike :)
Wow, that was great Uncle Doug, thanks! I never fail to learn something from your videos ...very cool jukebox you have there :)
Thanks, Shawn :)
Love you and everything you do! Great video.
Thanks so much, Kris :)
I cut my teeth on valve hifi then turned to the way more complex circuits in guitar amps. You made that transition much much easier. And you're right, a lot of guitar amp techs miss out by not making their own valve hifi, the quality is sublime compared to transistors and Class-A or Class-AB to boot!
Thanks for sharing, Prince :)
Very happy to hear your informative voice, uncle.i hope you don't think we're sick of seeing you work on classic guitar amps. ..( hint hint) but we're certainly happy to see you work on just about anything, jukeboxes, rat rods, oil cans.... 😁😁😁
Glad to hear it, G. Thanks !!!
Great job. This is still one of the best Tec Channels on TH-cam. There ist something to learn for everyone who wants to learn. Go on like this. And maybe - when the time is coming - we will get an other offbeat video with an old Hifi Tube Amp.
Thanks, TP. We're going to incorporate some offbeat topics in the future.
Hey Doug, and as everyone else here has commented, great to have you back with another 'jewel' of a video..! Great info and a fab topic.. Always learning and especially the nickel drop 9Volt heater thingy..So cool how that was thought out. Thanks for sharing, and I learn so much always..Stay safe..Ed..uk..😀
Thanks, Ed. It's always good to hear from you :)
TKS UD!!! Great info and a great outcome.
You're welcome, Rick :)
It's so nice to see a new Uncle Doug video extravaganza, and on such an interesting piece of gear, too! Thanks again, Uncle!
It was our pleasure, M1.
Phenomenal Video!! Missed you Doug!! Hope all is well with you and yours!!
Thanks, Bert. Never better :)
This was a much needed episode, Uncle. I have been concerned about your status health-wise. I'm elated to see and hear you in great form. I look forward to the next episode, and hopefully many in succession. Please stay safe and vigilant.
Thanks so much for your concern. We have another video almost finished and ready for release.
Great video glad your back
Thanks, Mark.
A little something different, I like it. Nice to see you back.😊
Thanks, Phil :)
Thanks Doug, a very interesting video. Love your Jukebox it's a thing of beauty, that quick start relay would really sort the chaff from the hay on valves with weak heater filaments. Speaking of metal valves I have a 1946 RCA Bench amp that is all metal, it had a little 3" speaker for which I removed and put a milliamp meter in the hole it left and is now a guitar amp. It's a great amp and pushes my vintage Celestion quad box quite well. All the best mate!
You're welcome, AJ. Glad you enjoyed it :)
Thanks for the video UD! Always interesting & enjoyable! Take care.
You're welcome, James. Will do :)
I'll watch any video you put out!
Thanks, Noel :)
Well this sure made my day! Thanks Uncle Doug! 🙏🔈
Glad to hear it, D :)
An excellent tour of the past. As a long time student of electronics, it's all interesting. Thank you for taking time to share it with us.
Thanks for joining me, Andrew. Always a pleasure.
Really glad to see you again.
Thanks, Michael.
Very cool! Nice change of pace and good to get another vid from you.
Glad to hear it, GL :)
HAPPY to see your back
Thank YOU
Likewise, Mike. Thanks for watching :)
I’m glad for the variety
I'm glad that you're glad, Geoff :)
Loved this one Uncle D. Great job as/per the usual!
Glad to hear it, MM :)
Beautiful Jukebox!!
Thanks, Darryl :)
Excellent Video. Really enjoyed it.
That's great to hear, Johann :)
I'm so happy that you seem to be in good health, Uncle Doug
Never better, DJ. Thanks for your concern :)
Very cool Doug,good to see you posting take care,Cheers!
Glad you enjoyed it, BJ.
Very cool repair.
Your juke box is a beauty.
Thanks, Jim :)
So nice to see UD again, hope you are well.
Thanks, Nirk. Never better :)
THANK YOU! I have been hoping you'd get around to jukeboxes again. :)
Glad we anticipated your wishes, EZ :)
Of course we are interested in seeing old jukebox amps being repaired! I think one of the guitar amps you worked on a few years back had a similar phase inverter circuit. Thanks for another interesting look at electronics we might not get to see to often.
Thanks, Y. Yes, interstage-transformer phase inversion is seen in a few guitar amps.
Thanks, Uncle Doug. Loved seeing this jukebox amp.
You're welcome, Fibber. Regards to Molly ;)
OK…… I cheated
I went directly to the output test at the end of the upload. Pretty cool to see Jack’s red axe.
Never figured he was a P90 pickup fan though.
I had him pegged as a humbuckler dawg.
Thanks for the upload.
I’ll watch the whole vid once the wife goes to sleep. She doesn’t understand my addiction the amp repair porn.
You're welcome, CP. Glad you enjoyed it. Your wife should be glad you prefer THIS type of porn ;)
SO glad to have you back! I hope all is well, and thanks for the 'must-see TV'!
Thanks, Stirling :)
Good to know some things are reliable and solid in a world of frightening changes. The weather may be going completely to hell, but at least ole Uncle Doug's still editing off the ends of senten-
It's our trademark, Ching. Any fool can post complete sentences ;)
Thanks Unc, that was a good one! Take care.
Thanks....will do :)
Welcome back Doug - hope everyone is doing ok at your end
Never better, Snork :) Thanks !!
Sounds really good !
Glad you liked it, VW :)
Awesome video, and thanks for the advice.
You're welcome, Michael :)
This was refreshing from the usual guitar amp repairs
Glad you enjoyed it, Danny :)
Very interesting Uncle, especially the quick-start relay cct. Well worth the wait, thank you.
Glad you enjoyed it, Paul :)
Great job..learned a lot of repair tips for old stuff.
Thanks, Brian.
I love seeing this Wurlitzer amplifier. I was given a model 851 Wurlitzer amp fr a Model 24 jukebox, AND the 15" loudspeaker, back when I was 14 yrs old, and got it working - it was my first audio sound system, and powered my music life through the end of the 60s.
Years ago I posted a video featuring a W-24 jukebox, CJ. Check it out if you're feeling nostalgic ;)
Great video. I really enjoyed you working on this amp. I'm glad to see you are still going strong, Uncle Doug.
Thanks, Joe. Never better ;)
Perfect change of pace.
Glad you liked it, Scott.
It's been too long Uncle Doug! So good to have another video extravaganza!
I hope you enjoy the show :)
Another great video uncle Doug!!
Thanks, Big Joe.