[GreenKeys] W2PAT TU

[Ralph Mowery]

I am not sure if it was the PAT, or one similar to it that I got when I
bought my teletype from an older ham around 1980 or slightly before.  By
then most were using 170 hz shift.  The unit still did a very good job after
I tuned the coils  if there were not any other stations close in frequency.
I gave that unit to another ham that had received a printer and wanted to
try out rtty..

There was about 20 hams in the area on a 220 MHz repeater.  Most on
autostart.  I taped a resistive type photocell over the mark neon bulb and
used a relay to start up my printer.  Worked well while I was building up a
ST-6 from the schematic a friend ran off for me out of a Ham Radio magazine.

> -----Original Message-----
> From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of
> Jim Haynes
> Sent: Thursday, May 25, 2017 5:45 PM
> To: JC White
> Cc: GreenKeys at mailman.qth.net
> Subject: Re: [GreenKeys] W2PAT TU
> 
> The W2PAT design was the first TU I ever built, except I think I got
> toroids from somewhere rather than using TV width coils.  I have a TU
> in the basement now that is most likely a W2PAT, does use width coils.
> Whoever gave it to me said it was a Twin City TU, but it isn't.  The
> design was published in QST in January 1953.  I had a PSK QSO with
> W2PAT a few years ago.
> 
> 
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html