Tandberg TR-1020 Capacitor R&R

TR-1020 power supply / Capacitor board. My beloved Tandberg TR-1020 developed a buzz in the right channel.
Tandberg TR-1020
Power amp module (1 of 2).
Evidence of electrolytic capacitor leakage. This is part of the input filter/coupling stage.
Caps replaced. Not a lot of troubleshooting here! Replaced all eight electrolytics on two power modules using Gold series Panasonics from Digikey. Rework is easy once you get in there. Really sweet Norwegian engineering!! 🙂
Re-assy: Board wiring is well marked. Receiver works perfect!!

Schematic link:
https://skogstad.org/documents/tandberg/tandberg.shtml

2 thoughts on “Tandberg TR-1020 Capacitor R&R”

  1. Hello,

    I am going through a TR1020 and am wondering what you used for your 3300uf power board caps. I forgot to measure lead spacing and was wondering if you up’d the capacitance to 4800uf or some other figure.
    I found some Elna 80v 3300uf on Digikey but the lead spacing is only 10mm and that seems too small (guessing). My originals show as 70v 3300uf.
    Any help is appreciated,
    Bill
    bill@AutomotiveVelocity.com

    Reply ↓

    • Hi Bill: I bought the 1020 used in 1979. It has been in practically continuous use since then, and I have replaced the power supply filter caps and output coupling caps several times. I checked my DIGIKEY history, but it has been a while. I’m sure I ordered replacements with the same CV values and lead spacing as the original caps. Enjoy !! 🙂

      Reply ↓

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