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Beolover SyncDrive: DC Platter Motor Replacement for Beogram 4002 and 4004 (Type 551x and 552x)

Late Beogram 4002 and the 4004 (Types 551x and 552x), which have DC platter motors instead of the earlier synchronous AC motors usually suff...

Sunday, June 4, 2017

Beogram 4000: Replacing the Reservoir and Motor Electrolytic Capacitors

After gold plating all of the switch terminals in the Beogram 4000 that I am restoring right now, it was time to rebuild the electronics. I usually start out by replacing the old reservoir and motor capacitors that are often out of spec and on the brink of failure. This shows the original units:

A while back I developed a 3D printed capacitor fixture that holds the (smaller) modern replacements neatly in place:
This assembly is a drop in replacement for the original capacitors since it uses the same retaining strip:
On to the circuit boards.



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