[R-390] Some of you will hate this

[Don Reaves]

Don't beat yourself up, Jim.

Who on this list over the age of 50 hasn't "modified" their share of
surplus military radio gear over the years?

Your rack mount R-392 reminds me of the Tektronix ARR-15.  An excerpt from
Hue Miller commenting about them:

I also met Ken K7RPX... (who) had a super interesting story about a
rare variant: "The Tektronix ARR-15". Seems that in the
late 1960s, a couple or 3 hams at Tek had tooled up to
convert the ARR-15 to a rackmount version, with a new
front panel. ARR-15s were being released in numbers to
MARS members, and relayracks were obtainable from
Boeing surplus. ( altho the 3-bay rack "weighed about
a thousand pounds" ).  The ARR-15 because of its
calibration feature, at the time offered the only possibility
for the average person to have this kind of calibration in
a receiver, without going to an R-390. They were popular
in an SWL type application, for monitoring use on specific
services, like WWV or the national "Transcon" ( HF aircraft)
frequency. Ken sez there were about 50 - 60 of these built
for individual hams, as their own project, just using Tek
facilities. There were 2 models, one with an S-meter
circuit. The ARR-15 manual was reproduced, but in blue
'Ozalid' blueprint format, singlesided, and with the 'Tek
ARR-15' circuit additions added to the schematic. Ken sez
he has two of these receivers. I begged him to write a
short article about the 'Tektronix ARR-15' for ER or some
other such venue....

regards, hue miller

Me again:  I had one of the ARR-15 receivers, rack mounted, with a
professionally machined panel.  Didn't know at the time it was a product
from the skunk works of Tektronix.

Don