[Amps] AL-1200 T/R problem

Jim Thomson jim.thom at telus.net
Sat Feb 1 13:10:31 EST 2014

Date: Sat, 1 Feb 2014 09:38:02 -0700
From: "Fern" <crc at cyberlink.bc.ca>
To: "Roger \(K8RI\)" <k8ri at rogerhalstead.com>, <amps at contesting.com>
Subject: Re: [Amps] AL-1200 T/R problem

Actually back in the early 60's is was more a fresh $10 or $20 bill as we 
couldn't afford to carry a $50 or $100 bill.   Fern

## telcos  used this stuff called Bond paper back in the electro mechanical days..
came in 3 ft long x half inch wide strips. 

##  If you really want to fix the AL-1200 and AL-1500  TR relay problem,
replace with vac relays.. like the gigavac GH1.  Then  you will NEVER have
int RX  ever again.   Put em on both the input and output..then you can stuff 2 kw through em
on bypass mode.  That allows you to then string several amps nose to tail..all on different bands...
or 1 on 80m cw..another on 80m ssb etc.   A simple rotary switch ensures only 1 amp can be keyed
at any one time.   IE:  key line from xcvr to rotary switch...then  6 outputs to 6 amps. 

##  I would not mess with mech TR relays these days. 

Jim  VE7RF

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