[TMC] GPR-90 what were those engineers thinking ???

[Ira Curtis]

 In both GPR 90's I have had ,  on both the  3.5mHz crystal  on that same 
sub chassis went  kaput.
I clearly remember saying just about what you have said when you  needed to 
remove it. sounds something like s!@#$.
Ira CE3AM

--------------------------------------------------
From: "Mark Foltarz" <Foltarz at rocketmail.com>
Sent: Tuesday, February 03, 2009 6:59 PM
To: <tmc at mailman.qth.net>
Subject: [TMC] GPR-90  what were those engineers thinking ???

> I have a GPR 90 I am working on. The usual items were addressed - caps, 
> noisy swithces etc.
>
> The radio came nicely on the lower three bands. But bands 4 , 5 and 6 are 
> double conversion and they are dead
>
> Turns out  the second oscillator is dead. It is not the tube. I'm pretty 
> sure the crystal is shot for the oscillator.
>
> But what get me is the real poor design for the enclosure that houses the 
> second mixer, oscillator and buffer.
>
> It is a night mare to remove. I have no idea what they were thinking when 
> they  thought  up this poor arrangement.
>
> They must have thought it would never  go bad...
>
>
>
> de KA4JVY
>
> Mark
>
>
>
>
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