[Johnson] Ranger 1 with no grid current
Jim
jbrannig at verizon.net
Sun May 29 07:21:45 EDT 2011
The Ranger has been through many "helpful" hands. It would be a good idea
to trace out all the wiring (yeah, it is a pain because of the cables).
I found a lot of interesting "mods" when I restored a Ranger 1.
A good place to start is with a bath in warm soapy water (the radio, that
is), a rinse in distilled water and a two or three day dry in the sun.
In the restoration process I replaced all the capacitors, meter resistors
and anything that was slightly suspicious.
After all that work I discovered that the silver micas in the VFO were leaky
and unstable.
Jim
I found the problem.
R5 (68K ohm) resistor was bad(open), replaced it and now the Ranger seems to
be working fine. Using a dummy load I can hear my CW and phone signals from
another radio in the same room. I have no idea how much output I have. I
need to hook it up to a watt meter.
One problem I am having is that the OSC meter is peging hard to the right.
I have checked the 3 ohm SH1 resistor and it checks out at 3.5 ohms.
All of the voltages for the 6CL6 check out fine. I get negative voltage on
pins 2 and 9 and the screen voltage is 99 volts.
Any ideas?
Thanks,
Todd M. Nannie
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