[GreenKeys] Then and now...

[Harold Hallikainen]

Resend from my list address!

> I got my first Teletype machine, a Model 15, in 1972. Followed by a
Model 19 in 1974.
>
> Local loop? Terminal unit? Keying a transmitter? Cabinet wiring? You
either had the documents or you didn't. If you didn't, well...
>
> Do you know someone else with anything? No.
> Do you know what books are out there? No.
> Do you have any idea where to buy parts? No.
> Do you subscribe to QST, 73 or Ham Radio? Maybe.
> Do you have a library? Good luck with the card catalog.
>
> There are no computers, BBSes, Internet, email.
> There are no places like Kinko's to make prints for you.
> Long distance phone calls are by no stretch free or cheap.
>
> *Laughs* Go ahead and say it. "Ten miles each way to school,
> in the snow, uphill both ways."
>
> I remember when I got my Model 19 off the trailer and into
> my garage and looking at the wiring in the back. "The f***?"
> Do you know how long it takes to generate a schematic by
> hand with an ohm meter?
>
> Ok, end of rant.
>
> What I want to say now is, thank you to everyone on this
> email list. To the wonders of the world wide web. And to
> everyone willing to take the time to share what they have.
>
> Jeff


The model 15 has so many options that there's a TON of wires in there. I
finally ripped it all out and put in 6 wire. 2 for the motor, 2 for the
magnets, and 2 for the keyboard. This was driven with my vacuum tube demod
using 88 mH telephone loading coils with a 6L6 keying the loop. My
receiver was a National NC-300. I modified a Viking Ranger to transmit
FSK. Everything was on the same loop so I got local copy as I typed and
transmitted.

Harold

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FCC Rules Updated Daily at http://www.hallikainen.com
Not sent from an iPhone.