[Jukebox-list] RE: Seeburg 2050 tube...

[Wesley Dean]

    For anyone interested. I have documented the modifications of Seeburg 
steppers to simplify the circuit and eliminate the 2505 tube. I can send 
schematics to anyone that has Word program. Wes
----- Original Message ----- 
From: "Justin S." <fordfalcon63 at hotmail.com>
To: <jukebox-list at lists.netlojix.com>
Sent: Saturday, June 24, 2006 4:46 PM
Subject: [Jukebox-list] RE: Seeburg 2050 tube...


> there is more to getting a stepper working than just plugging in a 2050 
> and a wallbox. be sure that the 5MFD AC capacitor is good. if it isn't, 
> you will not get sufficient "pulse" through the ratchet coils when the 
> thyratron fires. it will sound like it is pulsing, but the pulse will be 
> too weak to advance the ratchets. the AC cap does not come with any of the 
> cap kits. it is the large metal square riveted to the side of the 
> receiver. also all of the the contacts must be gapped correctly. the only 
> way i have found to make the units reliable for making accurate selections 
> is removing the square phenolic boards (not desoldering) and cleaning the 
> rotary contacts to the utmost. if your selection receiver spent many years 
> without the cover on the stepper unit, the job is that much more daunting. 
> also check all the coils for continuity. regards, justin
>
>
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