[GreenKeys] KlAutomaticeinschmidt multi-magnet reperf?

[w8roi]

Duncan and Nick

The 5 solenoid parallel device ‘sounds like’ the TELETYPE  LARP  perf.  If so there should be some info out there about it.

Ralph -  W8ROI



> On Oct 30, 2021, at 4:31 PM, Duncan Brown <duncanancy at earthlink.net> wrote:
> 
> 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