[GreenKeys] GreenKeys Digest, Vol 185, Issue 9

[Bill Abate]

Joe,

60 ma RTTY loops were traditionally keyed with a polar relay.  I've used 
them up to 100 WPM with no added  bias.  I have some mercury wetted ones 
that do not need adjustment if you cant find any.

73,

Bill, K3PGB

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>Message: 16
>Date: Sat, 22 Jun 2019 16:06:50 +0000 (UTC)
>From: Joe Herdler <joe.herdler at yahoo.com>
>To: GreenKeys Mailing List <greenkeys at mailman.qth.net>
>Subject: [GreenKeys] Relay suggestions
>Message-ID: <1802014836.485472.1561219610166 at mail.yahoo.com>
>Content-Type: text/plain; charset="utf-8"
>
>Hi All,
>What sort of relay would you suggest to me to put the coil of the relay in series with my TTY loop that would not bog it down with either too much dc resistance or LC? I need it to key a future FSK unit that is keyed by shorting two terminals on the unit itself. Short for mark, open for space. I will use a relay for this function. The relay would also have to be fast enough to work at 60 WPM.
>Thank you once again.
>Best,
>Joe KB0TXC
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