[Racal] RA-6790 spares

[Dan Rae]

Lee Ritta wrote:
> 
> Hello ALL
> Can anyone tell me where I can get working boards for the RA-6790? The mixer
> board for one.
> Tell me what is the differnce bewwen the RA-6790 and the RA-6793A?
> Thanks & 73's Lee.
> 
Lee, G'day,

If you haven't already got it, Gary Wingerd: gewingerd@netzero.com
will be glad to sell you just about anything Racal related.  He is in
Maryland USA.

Have you tried to fix it?  If you are referring to the RA6790/GM first
mixer board, it is pretty easy to fix, once you've got the can open,
assuming that it's the mixer FETs that have died.  If there is an
archive to this news group, check it, I've certainly covered this one
before...

The best replacement that I know of is the SD5000 quad FET, it used to
be about $3US.

The RA6793 is a later version, pretty much the same from the rf side,
but with memories, and Hall effect buttons, much like the UK RA1792.

73
Dan ac6ao g3ncr