Restoration of a Wurlitzer 1015 Jukebox Sound System
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- Опубликовано: 12 июл 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 RUclips 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... 
Видеоклипы
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…
Uncle Doug, your depth of knowledge always amazes me. I really don’t know of any other person on or off RUclips 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 :)
Welcome back!!! We all missed your warm personality and easy-to-follow teaching tecniques!
Thanks so much for the nice welcome, Baja.
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: ruclips.net/video/htbN7-vxUbg/видео.html
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.
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 :)
As always, a pleasure to watch, so soothing and everyone is glad you are fine.
Thanks, Thomas :)
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 :)
Functional art those old j-box's from that era, interesting subject. Still repairable after 75ish years.
Made to last, Andrew. Thanks !!
This is more my cup of tea. I don't play a instrument but I do play records.
We're glad you enjoyed the video, Michael.
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.
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.
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 :)
So glad to see Uncle Doug has posted again. This makes my entire day!
We're happy to hear it, M :)
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 :)
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) :)
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 ;)
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 have you back
Thanks, BC :)
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.
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 !!!
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.
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 :)
Uncle Doug is my hero
Thanks, Leon :)
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.
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 :)
Uncle Doug is back!!!! This thing is so cool.
Glad you enjoyed it, JL.
You are speaking my language! My first guitar amplifier was a Wurlitzer similar to this, but older, since it had an old 5Z3 4 pin rectifier tube. I could have really used the pre amp you have. I was able to get a used pre amp to make the guitar operate. My gosh, you are the Best! I loved my old amplifier. I played bass by the way. Thanks Uncle Doug!
Greetings, Mark. Glad you enjoyed the video :)
Great to have you back. Great vid of a nice amp!
Thanks, RG :)
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 :)
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 :)
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
I used to restore jukeboxes in the 80s when I was in High School.
They were quite popular back then......not as much now.
Thanks for the video UD! Always interesting & enjoyable! Take care.
You're welcome, James. Will do :)
Glad you're back!!! Excellent!!!👍👍👍👍
Thanks, Doc :)
Great video glad your back
Thanks, Mark.
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.
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 :)
Excellent Video. Really enjoyed it.
That's great to hear, Johann :)
Beautiful Jukebox!!
Thanks, Darryl :)
Thank you for this great video Uncle Doug. You have been sorely missed. You are about the only channel that i have the notification bell on an its been tearing me up waiting to finally watch it! Life gets busy sometimes. Among other things i have been caring for a wonderful tiny feral yellow kitty who adopted us thes year an she finally got spayed an had a pretty hard time with it, but she an her big brother are living the good life now as dedicated indoor kittys only. That amp sounds great an your kittys are killing it with the tunes!
You are quite welcome, SC. Bless you for caring for lost kitties. All four of our indoor pals are rescued feral cats, and all four are wonderful members of our family, returning our love and kindness ten fold.
@@UncleDoug yes absolutely. Our kitties are beloved members of the family an give unconditional love back to us.
Indeed :)
Дуже дякую вам Дядьку Дак за цікаве відео! 🙂 Я памятаю про перші відео на вашому каналі про ігровий автомат, і ви показували і розповідали як він працює! Дуже цікаві відео! Є завжди чому повчитися! 👍🙂 Обожнюю ваш канал! З нетерпінням чекаю на нові розповоді! 👍🙂🎉
Дякую за ваші дуже гарні коментарі. Я радий, що вам подобаються наші відео, і бажаю вам всього найкращого.
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 !!!
Not a turn off to me at all. That model, the 1015 is my fav jukebox. I love all tube amps. So happy you have a new video. Watching while I speak.
Thanks so much, Mike. I hope you enjoy it :)
Love you and everything you do! Great video.
Thanks so much, Kris :)
Loved this one Uncle D. Great job as/per the usual!
Glad to hear it, MM :)
TKS UD!!! Great info and a great outcome.
You're welcome, Rick :)
Very cool! Nice change of pace and good to get another vid from you.
Glad to hear it, GL :)
Very cool Doug,good to see you posting take care,Cheers!
Glad you enjoyed it, BJ.
love it, thx uncle
You're welcome, HV :)
I could listen to Olly and Jack all night Uncle Doug, Four months is far too long though for a prolific RUclipsr 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 :)
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 :)
Well this sure made my day! Thanks Uncle Doug! 🙏🔈
Glad to hear it, D :)
Hi Uncle Doug Ive followed your channel for some time and have to say some of the best content
that ive really enjoyed and look foward to , cheers mate :)
Thanks so much for your very kind words, AA :)
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.
masterful!
Thanks, Julian.
Great to see that you Sir are back! God bless you!
Thanks :) Likewise.
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.
Just brilliant. So detailed and yet still comprehensible. You're an absolute legend.
Wow....Thanks so much, William :)
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.
Sounds really good !
Glad you liked it, VW :)
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 :)
HAPPY to see your back
Thank YOU
Likewise, Mike. Thanks for watching :)
Really glad to see you again.
Thanks, Michael.
SO glad to have you back! I hope all is well, and thanks for the 'must-see TV'!
Thanks, Stirling :)
Another great video uncle Doug!!
Thanks, Big Joe.
Awesome video, and thanks for the advice.
You're welcome, Michael :)
A little something different, I like it. Nice to see you back.😊
Thanks, Phil :)
It's just smashing !!
Thanks, Mr. CC :)
It's been too long Uncle Doug! So good to have another video extravaganza!
I hope you enjoy the show :)
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 ;)
Good stuff !!!
Glad you enjoyed it, Joseph.
Beautiful light show at the end from the jukebox.
Glad you enjoyed it, Spike :)
5000 tube amp repairs under my belt and I still learn several things each time I watch you. Stuart
Glad to hear it, Stuart :)
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,.
Fascinating..... And that is going to be one happy customer. Sounds great!
Great to see you again uncle!
Thanks, PJ :)
Very cool repair.
Your juke box is a beauty.
Thanks, Jim :)
Every day I hope for a new video from you Doug…Today was a good day
I'm glad to hear it, Milo :)
I’m glad for the variety
I'm glad that you're glad, Geoff :)
Thanks Unc, that was a good one! Take care.
Thanks....will do :)
Glad your back Doug. An interesting video and yes it’s nice to mix it up a bit 👍
Glad you enjoyed it, Chris. I'll try to come up with some more off-the-wall concepts.
Very interesting Uncle, especially the quick-start relay cct. Well worth the wait, thank you.
Glad you enjoyed it, Paul :)
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 :)
Nice repair ... Great sound ... Thx
Glad you enjoyed it, Eddy.
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.
Always really happy to see another uncle Doug video uploaded
That's good to hear, KC :)
So nice to see UD again, hope you are well.
Thanks, Nirk. Never better :)
Wow, that was great Uncle Doug, thanks! I never fail to learn something from your videos ...very cool jukebox you have there :)
Thanks, Shawn :)
Uncle Doug! Your attention to detail is amazing, as always. Neat old jukebox!
Thanks, ST :)
It's good to see you back, Uncle Doug!
Thanks, DH :)
Great! I dig Doug!
I'm glad, Ted :)
It's always a GREAT day when I have a new Uncle Doug, my favorite Uncle, video!
Thanks so much, VTA :)
Hey Uncle Doug. So good to see you back. I love content like this. Keep up the interesting and unusual content. It’s amazing what you can do with a $15 soldering pencil, some decent solder, a few simple, handtools, and a lot of knowledge. Thank you. We all hope you’re doing well. Much peace and happiness.
Thanks so much, Fid. Likewise on the good wishes.
Wonderful episode 👏👏👏
Thanks, Michael :)
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 :)
Thanks, Uncle Doug. Loved seeing this jukebox amp.
You're welcome, Fibber. Regards to Molly ;)