You are right Dave, I had one like your description in an HQ 129X that I had
back in the mid 90s.
Jim
W5JO)
-Original Message-
Thanks Jeff- there are actually three versions. The 3rd and later
version used a 35W4 and a 50C5 and was the FCC-90A as I recall.
Google brought up info
Thanks Jeff- there are actually three versions. The 3rd and later
version used a 35W4 and a 50C5 and was the FCC-90A as I recall.
Google brought up info on the 1st and 3rd but not mine :-)
Tnx es 73,
Dave N7RK
--
Dave Hollander N7RK
Arizona Tube Supply
http://arizonatubesupply.com
Ham Radio
See this illustration:
https://www.radiomuseum.org/r/budradioin_frequency_calibrator_fcc_90.html
The 6SK7 in this illustration is a far different tube than the 117L7.
This original FCC-90 was designed to be powered by filament and B+
voltages taken from the receiver. Later versions contained
I found a Bud Radio Frequency radio crystal calibrator model FCC-90 in
my junk yesterday.
Google search only brings up the later model FCC-90A using a 35W4 and a
50C5.
Mine is the older model with an octal tube in it. Currently a 117L7GT.
Is this the correct tube for the older unit?
Photo:
