You're right. Seeburg repair is a paygrade up from Rockola repair. But this era looks fixable to me. Plus there are so many more of them in the Pittsburgh area than Rockolas.
Looking at the amplifier, it would seem all the companies are using a similar circuit design with the dual secondary driver transformer. Heathkit, Knight Kit and Magnavox all used this configuration.
thanks for the insight on the amp design. I do not have an electronics background. I can read schematics and test components but am clueless if asked to modify or design circuits. Fortunately, fixing these does not require much of the latter talents. I did find that the bias pots on the TSA 7 amp developed some dead spots which caused my current limiting bulb to light up when testing these. My electronics guru soldered a 50 ohm resistor across both pot leads which limited this effect. I must say that therein lies the challenge here as with each passing year, more components that were previously bulletproof are showing up faulty for the first time. Can't just replace all the electrolytics and expect your amp to work fine in 2024.
Bill, Great video and glad to see you branching out to other makes. I will be following along to gain a little knowledge from you. Best wishes. Mike
thank you Mike. Mid 60's Seeburgs can be fixed. It will take me awhile to come up to speed but my brother Tom is a good resource for these.
Great video! FYI, at 7:56....Tony *Miller*.
Glad you're cracking into Seeburg Bill! They've always intimidated me a bit
You're right. Seeburg repair is a paygrade up from Rockola repair. But this era looks fixable to me. Plus there are so many more of them in the Pittsburgh area than Rockolas.
Looking at the amplifier, it would seem all the companies are using a similar circuit design with the dual secondary driver transformer. Heathkit, Knight Kit and Magnavox all used this configuration.
thanks for the insight on the amp design. I do not have an electronics background. I can read schematics and test components but am clueless if asked to modify or design circuits. Fortunately, fixing these does not require much of the latter talents. I did find that the bias pots on the TSA 7 amp developed some dead spots which caused my current limiting bulb to light up when testing these. My electronics guru soldered a 50 ohm resistor across both pot leads which limited this effect. I must say that therein lies the challenge here as with each passing year, more components that were previously bulletproof are showing up faulty for the first time. Can't just replace all the electrolytics and expect your amp to work fine in 2024.