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When I got this telefunken Gavotte on the bench, it had three issues
1. BASS key was broken and hanging loose (see picture)
2. OFF did not turn the unit off
3. Magic eye did not perform
Took it apart, Knobs were really tough, removed the glass face, pull the plastic white background plate
1. The BASS key was just NOT TIGHT. Tightened it up mini bolt and it is perfect, reassemble
2. OFF button was not synced to the switch. Someone had pushed OFF really hard when it already was off, poping the key loose from the AC switch. Connected key and switch and it is now perfect
3. Tried other EM84 tubes known to work. Got the schematic and started testing resistors. FIRST resistor I check was short OPEN. Checked the others and they all measured close enough. Replaced the one 470k 1/2 watt resistor and the magic eye works perfectly
Victory!
The output tube is a ECL84 so that really dates this unit to 1962. It has more plastic then earlier versions but they probably had all the kinks worked out with this production version by then.
Sounds really really sweet. Loud and clear. Fully functional
Five completely original Telefunken tubes
Hmm, maybe I should recap it....
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