[AMRadio] COLLINS KWS 1 power supply questions

Brett Gazdzinski Brett.Gazdzinski at verizon.net
Mon Nov 2 21:54:20 EST 2009

When I had my KWS1, it used the rectifiers with the gas in them, forget the 
number, but they were very nice, and no mercury.

No need to disconnect the transformer, but I would just get a pair of the 
gas rectifiers.

Don't try that thing on AM, really sad, carrier and one sideband!

I was spoiled even back then, and did not like that rig, having to tune the 
RX, zero beat, tune up, tune the antenna tuner, 1/2 hour later I was ready 
to talk!
Really nicely made rig though...


----- Original Message ----- 
From: "Greg Mijal" <bluebirdtele at embarqmail.com>
To: <collins at mailman.qth.net>
Cc: <boatanchors at mailman.qth.net>; "Discussion of AM Radio in the Amateur 
Service" <amradio at mailman.qth.net>
Sent: Monday, November 02, 2009 9:12 PM
Subject: [AMRadio] COLLINS KWS 1 power supply questions

> Hi:
> I finished rebuilding the power supply on my new KWS 1.  I have a couple 
> of questions for the group:
> Is there a substitute for the HV fuse in the 2 kvdc line? Is the original 
> still being manufactured?
> I'm going to use solid state plug in diodes instead of the 866A's.  Do I 
> need to disconnect the filament supply to the 866A sockets?
> Thanks
> Greg
> Kinston NC
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