[Hallicrafters] Re: [Boatanchors] simple transmitter using the 1625tube

[Revcom]

There were a "whole bunch" of 1625s sold and used in SSB amp applications in 
the '60s.
P&H Labs, I think, had a grounded grid amp using 4 of the "specially 
modified" beam
power amplifier tubes, 1625s, in their LA-400.

I always dreamed of getting ahold of 837s as they didn't need the surgery 
and were 6V,
all the 1625s I came across were the RCA brands, (10-25cents each) that were 
not
modifyable. (sp?).

Rod
K0EQH

----- Original Message ----- 
From: "Chris Kepus" <ckepus at comcast.net>
To: "'Revcom'" <revcom at wbsnet.org>; "'Al Klase'" <al at ar88.net>; "'n0alo'" 
<n0alo at kans.com>
Cc: "'boatanchor'" <boatanchors at mailman.qth.net>; "'Homebuilt'" 
<homebuilttuberadios at yahoogroups.com>; "'Hallicrafters'" 
<hallicrafters at mailman.qth.net>; "'Regenrec'" <regenrx at yahoogroups.com>
Sent: Monday, November 17, 2008 4:08 PM
Subject: RE: [Hallicrafters] Re: [Boatanchors] simple transmitter using the 
1625tube


> While I can't think of any, are there any other circuit configurations for
> ham applications, other than GG, when it would beneficial or necessary to
> disconnect the suppressor grid (by cutting the base) and bringing it out 
> to
> its own pin?
> 73,
> Chris
>
>
> -----Original Message-----
> From: hallicrafters-bounces at mailman.qth.net
> [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Revcom
> Sent: Monday, November 17, 2008 10:39 AM
> To: Al Klase; n0alo
> Cc: boatanchor; Homebuilt; Hallicrafters; Regenrec
> Subject: [Hallicrafters] Re: [Boatanchors] simple transmitter using the
> 1625tube
>
> Not necessarily true.  Some tied it inside the socket, depends on Mfg.  I
> remember the days of cutting open
> the base to unhook the suppressor and bring it to a pin so could be used 
> in
> GG amp.  I think the RCA brand
> it was tied inside the envelope, couldn't be modified.  Not real sure on
> that.
>
> Rod
> K0EQH
>
>