[GreenKeys] KlAutomaticeinschmidt multi-magnet reperf?

[Duncan Brown]

Nick,

I finally got a chance to unbox & inspect the mystery KLI reperf you 
sent me. With the parallel input and supply & take-up reels, I'm sure it 
was used to monitor outgoing messages from an automatic tape-relay center.

A few interesting observations:
1. Motor says "48V DC"  The FGC-30 was 115VAC (except for a TT-239, 
which was a 48VDC, solenoid operated, tape reader). 48VDC was standard 
supply for TELCOs & microwave.

2. Tape size is 11/16", rather than the standard KLI tape of 7/8". Maybe 
this was just because it was non-printing, so wouldn't need the extra 
width tape. But if used with other KLI equipment, would have needed to 
stock two sizes of tape. Conversely, maybe it was used with Teletype 
Corp equipment already using 11/16".

3. The SPDT reed relays on  top of the selector magnets appear to be 
used to confirm what bits were decoded. They connect to J2 which is 
mounted over J1, as if it were an add-on.

4. I remembered that there was a Navy "Index of TTY & FAX " (NAVSHIPS 
93434) that cross-referenced by manufacturer. I looked at all the KLI 
(CCTB) machines that  were not listed in the 1970 KLI catalog, but 
couldn't find anything that fit (DC operated, 11/16" tape).  But the 
index is 1961, so maybe this machine is newer.

Did you query Tom Kleinschmidt about this machine?  he doesn't seem too 
active on Greenkeys.  I don't think he knows much about the automatic 
torn-tape relays, but if you haven't asked about it, I'll ask him.

Thanks,
Duncan



On 22-Sep-21 13:19, Duncan Brown wrote:
> Nick,
>
> The fact that it has a take-up reel implies is is a monitor unit for a 
> tape relay system.
>
> I don't see it shown in the AN/FGC-30 Automatic Switching System (1970 
> KLI Catalog), but the FGC-30 did use parallel signalling. Perhaps this 
> unit was a later replacement for one of the Monitor units in the FGC-30.
>
> Duncan
> K2OEQ
>
> On 22-Sep-21 11:29, Nick England wrote:
>> Does anyone have more info as to how it was used? The ID tag has been 
>> removed.
>> It is non-typing reperf with 5-bit parallel input to five punch 
>> magnets. Clearly military connectors. Interesting that it has a 
>> built-in tape take-up reel.
>> Photos at -
>> https://www.navy-radio.com/manuals/tty/kleinschmidt.htm#reperf 
>> <https://www.navy-radio.com/manuals/tty/kleinschmidt.htm#reperf>
>>
>> Cheers,
>> Nick England K4NYW
>> www.navy-radio.com <http://www.navy-radio.com>
>>