29-10-2014, 10:03 AM
(This post was last modified: 29-10-2014, 10:04 AM by Radio Fixer.)
Not much of a bullet to bite Alan (fingers crossed !)
Scrapped the Paxolin switch wafer and cleaned away the dust. Changed the coupling cap to the O/P valve and that to the AF pre-amp (2 M Ohm @ 25V) and it works well (very sensitive) on all wavebands. Now on soak test.
Measured the volts on the valves and they line up with the Trader Sheet. Not tested the EL84 as the cathode current is OK so emission still up.
Must say I'm impressed by the old thing: all those years and that's all it needed. Amazing that the Vol and Tone pots have no scratchy noise. Even the dial lamps are still working ! They dont make them like that anymore !
Gary
Scrapped the Paxolin switch wafer and cleaned away the dust. Changed the coupling cap to the O/P valve and that to the AF pre-amp (2 M Ohm @ 25V) and it works well (very sensitive) on all wavebands. Now on soak test.
Measured the volts on the valves and they line up with the Trader Sheet. Not tested the EL84 as the cathode current is OK so emission still up.
Must say I'm impressed by the old thing: all those years and that's all it needed. Amazing that the Vol and Tone pots have no scratchy noise. Even the dial lamps are still working ! They dont make them like that anymore !
Gary
