[GreenKeys] Teletype Model 15 power Q's...

Thu Nov 10 05:00:38 EST 2016

Ah, that’s right, the DC is for the punch ;o … mmm, looks like I had a brain flatulent ;o .  Unfortunately, I only have one 1/4” jack (red)… with the two wires coming from the jack - connecting to both send and record - terminals 32 & 41 (with 34 & 41 connected by a jumper wire… seems like the modification put transmit & receive onto one jack ;o ), as seen in the diagram here:…

http://www.virhistory.com/navy/manuals/tty/jh/ttyman9/drawings/military/19x01.pdf

Ok, so… as Ralph said in an earlier email:...

"As the machines may have been rewired many times, don't trust the terminal numbers.  You are looking for 3 sets of wires.  One pair is for 120 volts AC that goes to the motor usually through a switch. One set will go to the coils for  the magnets.  That is the 60 ma data line.  The other set will go to the set of contacts on the base of the unit that is the keyboard data out line.  The wires for the magnets and keyboard are usually wired in series so what you type will be printed.”

…so I’m assuming, from what I think I know ;p … that by applying the 120vdc/60ma voltage to the send line - that the keyboard and printing unit should then work ;o (while trying to trust the terminal numbers, that is ;p ~).  Also, since it seems like send and record lines are on the same jack, that running a single transformer supply - positive to pin 41 and negative to pin 32, that this might power both send/record ;o ?… or should I just disconnect the red jack for now, wire it up to the send terminals, remove the jumper and see what happens ;o (I know it is never the best to see what happens ~o~; ~…..)???

I don’t know, I’ve been looking at this stuff, emails and wiring diagrams until I can’t see straight anymore xD hahah… almost there :) .  Thank you all once again everyone and please have a great night/day wherever you are ^^ !!!

^_^

> On Nov 10, 2016, at 2:15 am, eric <epvgk at limpoc.com> wrote:
> 
> On 2016-11-09 18:51, Eric & Jia Bigham wrote:
>> I don’t mean to sound not-to-smart ;o … when you say built-in (this
>> not part of the desk)… what is this receptacle seen in the lower-left
>> part of the unit in this photo here ;o ?…
>> http://tinypic.com/view.php?pic=hs1hqh&s=9
>> :)
> 
> The outlet on the side of the machine in the picture is just a
> 120VAC utility outlet connected to the same place as the motor's
> power I think. I don't recall if it's turned on and off by the
> switch or always on.
> 
> The machine would have a second power cord with slanted prongs
> like / \  which is for the DC power. I can't really tell from the
> picture but the round metal plug you're holding might be it.
> I forget the polarity but it should be in the diagrams. Anyway
> the punch is independent, worry about everything else first and then
> mess with that. You'll need a beefy power supply for it anyway.
> 
> Since you don't have the original desk, which had a great deal of
> wiring in it, there is probably no loop resistor or other stuff and
> so probably you will have only 1. keyboard 1/4" connector, 2. printer
> 1/4" connector, 3. motor power, and 4. DC power for punch.
> 
> The machine will work fine without DC power for the punch anyway.
> The only thing that won't work would be punching tape when the switch
> on the front of the machine is in "TAPE" or "KBD & TAPE" mode.
> 
> eric
> 
>>> On Nov 9, 2016, at 8:23 pm, Eric <epvgk at limpoc.com> wrote:
>>> The punch uses 120vdc at half an amp! If there is a built in power supply it supplies that on the plug with two slanted blades and also derives a local loop supply from that via resistors in the desk.
>>> On November 9, 2016 5:51:40 PM PST, "drlegendre ." <drlegendre at gmail.com> wrote:
>>>> And a model 19 it is! That's some +very nice+ kit there, sir!
>>>> Congratulations on the acquisition.. I'm sure it will keep you
>>>> entertained
>>>> (in a manner of speaking) for some time to come. ;-)
>>>> Should clean up very nicely, too. Avoid solvents on the case finishes,
>>>> stick with hot water, detergent & soft brush if needed. Some Novus 2 on
>>>> the
>>>> plastic window works miracles. Let me know if you need a new ribbon
>>>> and/or
>>>> paper.. I have more than I need of both, as I had to purchase more than
>>>> I
>>>> wished to get supplies for my M15. I don't have punch tape, though.
>>>> The motor is definitely a regular 120V AC synchronous / induction type.
>>>> I
>>>> have no knowledge at all wrt the perforator or its power requirements.
>>>> Someone who actually knows something will have to assist you there.
>>>> On Wed, Nov 9, 2016 at 7:14 PM, Ed Sharpe Archivist for SMECC via
>>>> GreenKeys
>>>> <greenkeys at mailman.qth.net> wrote:
>>>>> one of those  dc voltages  is  for the punch!  did you get the table
>>>> and
>>>>> the   reader TD   model 14 thing that mounts  beside it!?
>>>>> In a message dated 11/9/2016 5:57:58 P.M. US Mountain Standard Time,
>>>>> greenkeys at mailman.qth.net writes:
>>>>> heck that is a 19  not a  15  !!!! congrats you have  a puncher  too!
>>>>> ---Ed #  www.smecc.org
>>>>> In a message dated 11/9/2016 5:42:54 P.M. US Mountain Standard Time,
>>>>> hanyou at xsmail.com writes:
>>>>> http://i63.tinypic.com/16kynpu.jpg
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