[Johnson] Viking II Update
Rich Soennichsen
rsoennichsen at gmail.com
Thu Jun 22 14:38:16 EDT 2006
I have install a new 50W power resistor (R13) and am now able to
adjust the clamper as per the specification. It now tunes normally!
I get ~130 W into my dummy load and ~95W into my antenna. Replacing
the resistor restored the bias voltages to the 807s and I now have
modulator current.
I do not have any modulation when blowing into the mic so now I get to
debug the audio chain. But I am getting close!
Boy does that resistor make a lot of heat.
73
Rich
More information about the Johnson
mailing list