[GreenKeys] Fwd: Value of a 33

[teletypeparts at aol.com]

From:  teletypeparts at aol.com
To: ehorne at speakeasy.net
Sent: 12/28/2009 5:01:23  P.M. Eastern Standard Time
Subj: Re: [GreenKeys] Value of a  33


Bill,

Well, a common 33 TWX already has a modem in the  pedestal.  The extra 
weight is about 40 lbs, so it is harder to move  around.  Just enough to make it 
a too much for one person to lift  easily.  

You could have a TWX and a friend could have one and you  could call each 
other over the phone lines which was roughly the way the system  worked 
originally.  The TWX modem sent and received with tones.  In  Originate, send was 
1070 space and 1270 mark and receive was 2025 space and 2225  mark.  Answer 
mode was the opposite.   I had to look that  up.  LOL.  I'm sure that Jack 
would not have to.  You might be  able to connect thru an interface between 
the TWX and radio transceiver.   Only amateur radio guys would want that.  
Maybe Jack can answer that  one.  

Most 33's interfaced to computers used current loop full  duplex with the 
computer echoing back what you sent to it if that's what you  wanted.  Lots 
of other different interfaces too, depending on the computer,  most of which 
I am not familiar with.  We never had to fix that end, just  the 33.  

Wayne



In a message dated 12/28/2009 2:27:51  P.M. Eastern Standard Time, 
ehorne at speakeasy.net  writes:
Teletypeparts at aol.com wrote:
> TWX and 33's without the  standard UCC-6 interface unit and missing  
> accessories are the  least in value.  You have to modify them, find a  
UCC-6, find 
>  the accessories, etc.  

I'm surprised that TWX machines wouldn't  bring that much. Couldn't a 
buyer just hook the TWX machine up to a modem,  or do they "have to" have 
that classic look and feel?

BTW, can a TWX  machine be changed to full duplex?

TIA.

73,

Bill Horne,  W1AC

-- 
E. William Horne
William Warren Consulting
Computer  & Network Installations, Security, and  Service
http://william-warren.com
781-784-7287