I'm scratching my head on this one. V9a is oscillating at an audio rate, as it should. Pin 1 is about 150V pk-pk at about 800 Hz. ANTI VOX/SIDETONE is maxed. I get a distorted signal at the grid of V9b (pin 7) of about 5 V pk-pk. Cathode (pin 8) is not a strong signal, has lots of distortion (looks like it might be FM'ing) - only a couple of volts pk-pk.
The static voltages per the chart are approximately right (plate voltages are present and other voltages are within what I'd consider normal). There is no signal at the ANTIVOX/SIDETONE jack - with or without the R-4B connected. Needless to say, there's no sidetone. CW is otherwise keying normally. The can cap was replaced with an 80 uf above the 330k plate resistor (C132) and 10uf at C144. This thing's got me stumped. It does look like someone worked on it before me - I see a 2-position terminal strip next to the sidetone board that has had a piece of coax clipped from it, but I haven't found any missing connections yet. Any ideas? 73, Steve Wedge, W1ES/4 "Just so the wealth of the country, its capital, its credit, must be saved from the predatory poor as well as the predatory rich, but above all from the predatory politician." - James Jerome Hill All my computers have my signature with various pearls of wisdom appended thereto.
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