02-05-2010, 07:41 PM
Thanks, Ron.
Do you know offhand what the resistance of the early test sets might be? I have a voltmeter here that's about 20k per volt, but
the readings I got with it were quite close to those of the DMM. Line voltage here is about 117VAC. Most of the plate voltages I'm getting are, for example, 284V rather than the specified 250V for the 1st RF. However, the info I have specifies 48V on the 2nd detector plate; I'm getting 247V! Maybe a "2" is missing from the literature? And all the cathode voltages listed at 15V are measuring at anywhere from 2V to 7V.
The only thing I can think of is to lift connections and measure the power resistor. It appears to be OEM, but could have been a swap during some repair effort in the past.
I think you may have put your finger on the distortion issue with regard to the power detector, and I might be too fussy. My wife says the radio sounds okay to her.
Nelson
Do you know offhand what the resistance of the early test sets might be? I have a voltmeter here that's about 20k per volt, but
the readings I got with it were quite close to those of the DMM. Line voltage here is about 117VAC. Most of the plate voltages I'm getting are, for example, 284V rather than the specified 250V for the 1st RF. However, the info I have specifies 48V on the 2nd detector plate; I'm getting 247V! Maybe a "2" is missing from the literature? And all the cathode voltages listed at 15V are measuring at anywhere from 2V to 7V.
The only thing I can think of is to lift connections and measure the power resistor. It appears to be OEM, but could have been a swap during some repair effort in the past.
I think you may have put your finger on the distortion issue with regard to the power detector, and I might be too fussy. My wife says the radio sounds okay to her.
Nelson
