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Hi,
It looks like there's little technical information about Olson tube amplifiers.
I'm trying to go through an unidentified model equiped with a 5AR4 rectifyer, four EL84 PP and 5 12AX7 (all testing good).
There's some residual audible ripple after recaping the power supply whatever the...
I started going through this tuner by taking inventory on the caps and resistors so as to replace them. One of these 5 watt resistors off of the filter cap has unreadable identifying marks and does not measure using a multimeter. Does anyone have the schmatic or value that this resistor could...
I was given a Olson RA-280 when I purchased a Lafayette receiver, and I’ve been told it’s broken, although no details on what it does.
After sitting in the closet for 2 months or so, I’ve pulled it out to see I found I can fix it. AFAIK, this amplifier was a kit produced in the 70s, by some...
I pulled this out of an Olson console. Added a power switch, fuse assembly, volume pot, jewel light, and new power cord. EZ81 rectifier, 12AX7 driver, and EL84/6BQ5 power tubes. Pretty amazing sound from an amp smaller than a shoebox!