[GreenKeys] Fw: Rewiring a Model 19 ASR for RTTY

[epvgk at limpoc.com]

On Mon, Sep 19, 2011 at 07:52:06AM -0700, Norm wrote:
> OK what is a Eric's board, and a Triad N48X, I think I know the rest?
> Norm
> WB7WEQ

Well, as far as I know an Eric's board is one of the RTTY demod boards I have
been making, I think you already have two of them in fact, Norm! 

I think a Triad N48X must be a transformer. 

However, this only covers receiving, not sending - I suppose I need to get on
the ball with a modulator board, too... heh. Some fancy modern radios have 
direct FSK inputs, though, which you could connect directly to the TTY 
contacts, I suppose. (my ICOM 7000 has this, and it works)

eric

> 
> 
> ----- Original Message ----- 
> From: "Lee Mushel" <herbert3 at centurytel.net>
> To: "DR HOUSE" <Packard42 at gmail.com>; <greenkeys at mailman.qth.net>
> Sent: Monday, September 19, 2011 7:25 AM
> Subject: Re: [GreenKeys] Rewiring a Model 19 ASR for RTTY
> 
> 
> > Don, this is absolutely the best posting you've had in months!   I suppose 
> > I
> > had a copy at one time but it has disappeared.   For anyone with a 19 who
> > wants to get it working this is all he needs except for Eric's board, a
> > Triad N48X, a rectifier, capacitor, adjustable resistor and, of course, 
> > the
> > component that seems to be often missing today, the soldering iron.   In a
> > couple of hours you can have a working RTTY system.   And you don't have 
> > to
> > worry about paint, grease, oil or selenium rectifiers.   I sure hope 
> > people
> > convert those rectifiers to solar cells and don't simply discard them!  I
> > seem to recall powering a radio from selenium "cells" back in 1955.
> >
> > And, don't worry, "our" 19 manual is still sitting safely a foot from my
> > left knee.
> >
> > regards,
> >
> > Lee   K9WRU
> >
> > ----- Original Message ----- 
> > From: "DR HOUSE" <Packard42 at gmail.com>
> > To: <undisclosed-recipients:>
> > Sent: Sunday, September 18, 2011 8:30 PM
> > Subject: Rewiring a Model 19 ASR for RTTY
> >
> >
> >>
> >> I found this in an old issue of RTTY Journal and enlarged and updated
> >> the type and format for 5 letter sized pages.
> >> You can print this out and put the pages in sheet protectors for use
> >> if you decide to do this modification.
> >>
> >> 73,
> >> Don
> >> K9TTY
> >>
> >>
> >
> >
> > --------------------------------------------------------------------------------
> >
> >
> >>
> >>
> >
> >
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