On Mon, 8 Dec 2008 20:13:59 -0800, "Stanley Miln"
wrote:

Drake is still in Business. Contact them. they may still
service the TR7.
stan
I have a TR7A that is very weak on receive and will not transmit. The +10T
and +10R lines operate normally when PTT is selected and I press the mic
switch. All receive functions seem to work correctly, but the receive
signal level for even very strong signals is too low to produce any AGC
action. If I back off on the RF gain the S meter does register, so it
doesn't look like an AGC problem. The -5 volt line is only -3.something,
but the +24 line and +10 supply are within specs. The output of the
multivibrator / bridge rectifier for the +24V is within spec as well.

If anyone has seen this kind of problem and can tell me where to start
looking, I would appreciate it.

73,
Bob AD3K



No,
Drake stopped servicing all Amateur Radio products about 4 years ago
and sold off the parts inventories.

I'd check and see why that 5 volt line is low or what is pulling the
supply line low.

Doug/WA1TUT