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FOLLOW UP TO SEEBURG TSU5 ISSUE
by Jerold Kress 15 Jan '23

15 Jan '23

It was suggested I test DC voltages to both C514 & 515 as well as pull the 6X4 and test the AC coming in. 80VDC on C514. 69VDC on C515. C514 was heating up with these tests so I switched off the machine as soon as I could read the voltage. With the 6X4 pulled I next tested 313VAC coming from the transformer to pin 7 of the 6X4 socket but then something unexpected happened: C514 blew. There should have been no voltage reaching either cap with the tube pulled. This suggests a short somewhere but I can't visually see any short. How else would voltage reach the caps? I'm replacing both caps & getting a new 6X4 next week but I don't see this solving the problem if the cap blows with the tube out. Any ideas or suggestions welcomed. jerold k

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FOLLOW UP TO SEEBURG TSU5 ISSUE
by Jerold Kress 15 Jan '23

15 Jan '23

This is a follow up to my previous posting about issues with my Seeburg TSU5. I've isolated the problem to C514 over heating but so far have not determined the cause. I replaced C514 & C515 and R518 that bridges their negative ends. (I tested the caps to be sure they weren't shorted & the resistor's value is good.) C514 is connected to the -400V side of the 6X4 rectifier tube. I know this is a positive ground system so I was careful to replace the caps in their proper configuration, with both pos ends soldered to ground. I've switched out the 6X4 with 3 working replacements (all from working guitar amps) but C514 continues to overheat. (I shut down the system after a few seconds but in that time C514 is warm to hot.) I can test the voltage reaching this cap if that info will help in a diagnosis. Any insight into why this cap is overheating so quickly would be appreciated. Thanks! jerold k

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Wurlitzer 3300 Low Volume
by Donald Whiting 14 Jan '23

14 Jan '23

I would appreciate any help with this. I’m not that familiar with Wurlitzers mostly work on Seeburg I have a customer that’s and older gentleman that said the needle broke and he replaced it on his Wurlitzer 3300. Since then it has low volume. I stopped by to take a look and he had several new needles. So I replaced it still low volume. Should I replace the cart at this point? The needles are the correct ones. He said it has been working fine for the past 20 years Thanks Don

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FS: Mills Constellation Amp
by Tony Miklos 12 Jan '23

12 Jan '23

Mills Constellation Amp I have this amp taking up shelf space. Anyone have a need/want? Email me or post here with what you think it's worth/what you will pay/or who might want to buy it. I've never attempted to power it up. I've never touched a Constellation. It came with some other parts I bought some time ago.

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Wurlitzer Input Transformer for 771 amplifier
by M De Simone 08 Jan '23

08 Jan '23

I forgot to mention this amplifier uses #45 output tubes. Sent from my iPhone

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Input transformer for Wurlitzer 771 Amp from 416-616
by M De Simone 08 Jan '23

08 Jan '23

Well this is new for me, although I’m getting pretty good at selecting replacement output transformers, input transformers are out of my comfort zone. I need help in selecting an input transformer for this amp and was hoping Jay or another kind member could suggest one that would be a good fit. I prefer Hammond brand as they are easy to get here in Canada but am open to other suggestions. Here is the page I found but prefer a recommendation. https://www.hammfg.com/electronics/transformers/audio/124 Thanks, Mauro Sent from my garage.

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Seeburg Electrical selector.
by Jukebox Repairman 07 Jan '23

07 Jan '23

Wanted to thank Jim Dirksen and Norm McCrae for their help with this issue. Can’t believe I overlooked this previous ( I do wear glasses) but someone had added a jumper wire between a leaf and snap switch. I’m guessing this was a way to create free play option? When I received this ES and WSR I found the take off ramp on the CCU bent out of the way so I assumed that was the crude free play setup. If the ramp was bent out of the way what would be the need for the jumper on the switches?? Anyway we’re back in business Regards Rick

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Seeburg TSU5 Blowing Fuse & Cap
by Jerold Kress 07 Jan '23

07 Jan '23

My Seeburg 160 with a TSU 5 started doing the dreaded two scans/no record pick ups after working flawlessly for over a decade. Here’s what I noticed: both OA2 tubes were unlit. There was a blow electrolytic cap (10MF/450V) nearby (blown in the sense that the positive end is bulging with some white crud deposits). It looks like it’s C512. All the other caps visually look fine. Someone did a cap job on the unit before I acquired it 25 years ago. I happened to have a similar electrolytic cap with the same specs so I replaced it to see if the OA2s would relit. I also replaced the 6X4 with one from a working guitar amp in case that was the issue. The new cap & the fuse blew in less than a minute. (Note that I had run the unit with the original bulging cap for a lot longer earlier while trying to figure out what was wrong and the fuse didn’t blow. The new cap is shorted/The original cap is not shorted.) Any suggestions on where to start on this issue? I could replace the cap and fuse and try again but that seems like risking more damage. Start testing all the nearby resistors? Put the original cap back in and see if a new fuse wouldn't blow so I could start testing voltages? (Note: The OA2s and 6X4 have never been changed.) Replace all the electrolytics? Any help trouble shooting will be greatly appreciated. jerold k

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Re: [Jukebox-list] AMI G80 Select Buttons/Pin Bank/Bail Switches?
by David Breneman 03 Jan '23

03 Jan '23

Von: "Jamie McElroy via Jukebox-list" <jukebox-list(a)lists.netlojix.com> > I wonder if anyone can help me understand on occasion my AMI G-80 select > buttons will not respond. I can turn the jukebox off and back on and the > select buttons will function again...or only the left or right select > buttons will work that coincide with that specific side of buttons > associated with the left or right pin bank. When the selection levers don't move, is the "Select" light on? Do you hear the knocker strike when the lever doesn't move, or only when it does move?

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Re: [Jukebox-list] Seeburg B Electrical Selector
by NORMAN MACRAE 01 Jan '23

01 Jan '23

The ground for both the credit light and latch solenoid is switched by the credit wheel. The hot side for the latch solenoid is routed through the credit relay timing relay normally closed contact Y. Norman. ------ Original Message ------ From: "Jukebox Repairman via Jukebox-list" <jukebox-list(a)lists.netlojix.com> To: "JIM & LAURIE DIRKSEN" <dirksenj(a)bellsouth.net>; jukebox-list(a)lists.netlojix.com Sent: Sunday, 1 Jan, 23 At 20:44 Subject: Re: [Jukebox-list] Seeburg B Electrical Selector Jim, I have deleted the counter. It came loose in the bag with the burnt solenoid. I was more concerned as to why I’m not getting the power to the latch. Regards Rick On Sun, Jan 1, 2023 at 3:25 PM JIM & LAURIE DIRKSEN via Jukebox-list < jukebox-list(a)lists.netlojix.com> wrote: You can leave the counter off with no issue. It doesn't energize anyway at the time the latch solenoid is... On Sunday, January 1, 2023 at 01:32:25 PM EST, Jukebox Repairman via Jukebox-list <jukebox-list(a)lists.netlojix.com> wrote: Hi group. I recently inquired if someone could tell me where the terminal strip for the resistor mounts. A customer recently sent me this ES because the latch solenoid was fried. They sent it to me with solenoid, counter, removed and associated wiring disconnected. Using the schematic from the manual I have a new solenoid installed but deleting the counter and solenoid. When I raise a tab on the credit wheel my select lights come on but I have no power to the latch solenoid. I have the ES connected to a WSR on the bench. Am I missing something by deleting the counter? Regards Rick _______________________________________________ Jukebox-list mailing list Jukebox-list(a)lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/jukebox-list <http://lists.netlojix.com/mailman/listinfo/jukebox-list> Searchable Archives: http://jukebox.markmail.org/ <http://jukebox.markmail.org/> _______________________________________________ Jukebox-list mailing list Jukebox-list(a)lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/jukebox-list <http://lists.netlojix.com/mailman/listinfo/jukebox-list> Searchable Archives: http://jukebox.markmail.org/ <http://jukebox.markmail.org/> _______________________________________________ Jukebox-list mailing list Jukebox-list(a)lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/jukebox-list <http://lists.netlojix.com/mailman/listinfo/jukebox-list> Searchable Archives: http://jukebox.markmail.org/ <http://jukebox.markmail.org/>

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