[TMC] GPR-90 + SPKR

[D.Hepworth]

Good morning & afternoon to the group,

I have to pass on this interesting story how I just acquired my GPR-90 and
it's speaker, I had listed on are local swap & shop that I was looking for
a GPR-90 receiver .
I expected 0 response from my ad , When I finished with my listing a fellow
Ham north of me (60miles )
comes on and says he has a GPR-90  for me.. But it's been kept under cover
for the past 10 years outside
( I thought he meant  in a shed )... I talked to the gentleman about the
radio and it's condition It was apparently
turned on some 10 years back but the fuse was popping ,
I arranged to pick up the radio the following day with a fellow ham . We
arrived at the radio's home , pulling into the driveway  and the fellow that
owned the radio was standing under a pine tree with a tarp at his feet!
I looked at Bob and he looked at me and we smiled and thought , No it can't
be there?
We proceeded to walk over to the pine trees and introduced ourselves . I
looked down and commented  is this where the radio now lies?( I expected to
see R.I.P written on a tombstone  under the tarp).. he said yes . We then
lifted the double tarps ( 2 tarps for anything past 5 years outside storage
hi ) The radio was sitting on the ground , I lifted it up with some  fear
that a snake would crawl out from under it, but only pine cones and
thousands of pine needles hanging off of it and falling out of it..At this
point many of the local residents started to evacuate ( spiders & and other
beasts ) The speaker was kept in the house ( very glad of that ).. I took
the radio over to the tailgate of the truck  , and tried the main tuning
controls, they we silky smooth still and had a solid feel to them and all
the other switches still had a nice snap when you turned them. The two main
kHz & MHz  windows were still white and not gone to that yellow gold color ,
Maybe spiders do windows? hi.

After getting the radio home (it  was kept outside for 2 hours to shake out
the cobwebs and the contractors , pine cones & needles  .
I decided that the only way to find out if I had a working radio was to plug
it in fire up, holding my breath I turned it on and the fuse blew, this was
good, I pulled out the voltage RECTIFIER ( 5U4G ) AND THE 6V6GT v reg. )
They were shot, I replaced them and pulled all the other tubes out and check
them all.. they all checked out 70 to 80% So I knew I could proceed to fire
it up again.
I turned it on and behold there was light...But I heard now signals at all I
did not have book with radio , but found the schematics and alignment chart
on the internet..(BAMA ) I had the radio on it's side to monitor any
possible smoke signals, Continued after lunch..........