[GreenKeys] Motor Start Control ?

[Thomas Tillson via GreenKeys]

2 more are "Pulsecom" and "Tempo Instrument  Inc."
 
TT
 
 
In a message dated 10/4/2014 3:06:31 P.M. Eastern Daylight Time,  
greenkeys at mailman.qth.net writes:

Most Teletype motor controls have a timer that shuts off the  motor after a 
period of inactivity in the current loop.  5 minutes would  be common.  The 
first space received in the current loop would start the  teletype.  33's 
in medical labs had these for readout of different types  of multiple sample 
counters.  Scintillation, gamma are two names I  remember. 
 
Wayne
KB1FDW




-----Original  Message-----
From: John P. Caldwell <jcaldwell at rbcos.com>
To:  greenkeys <greenkeys at mailman.qth.net>
Sent: Fri, Oct 3, 2014 8:19  pm
Subject: [GreenKeys] Motor Start Control ?


 
 
Well, I goofed and sent this post from my other email  address that isn’t 
registered.  Trying again from the correct email  address.
 
I came across a couple of what appear to be motor start  controls in a box 
of RTTY parts I picked up at a hamfest recently.  These  are marked 
MULTIPLEX COMMUNICATIONS INC, Long Island, NY, Model MC110.   There’s a barrier 
strip w/ contacts for Line +/- , Selector 1 & 2 and a  switched 1/6A 120V 
outlet.  The units are marked 5 Minute Delay, which I  take to mean when the line 
contacts go high, the timer starts.  My  assumption is a teleprinter in 
series with the box would then power up and  remain so for the 5 minute 
duration, ready to receive a message?.  A  google search yielded nothing
 
Does anyone have any info on these units?
 
Regards,
John WD8INC
 




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