[GreenKeys] Model 32 Tape Reader Q

[Cory Heisterkamp]

Hi Lar,

Yes, that checks out, but I was under the impression the pins would retract, the paper tape would advance one space, and the spring loaded pins would be returned upward to either pass or be blocked by the tape. This 'down, advance, up' sequence isn't happening. I know the solenoid is getting power because the pins retract in the de-energized state (like my 33) and 'jump up' when power is applied; the advancing sprocket doesn't move though.

Just how does this solenoid get cycled?    -Cory


On Aug 31, 2012, at 11:28 AM, "Larry Tighe" <larryradio at att.net> wrote:

> The pins are pushed down by the tape laying on them....a hole in the tape lets a corresponding pin up...and that pin is "read" by the machine to produce a letter.  Pins are normally UP.
> 
> lar
> ----- Original Message ----- From: "Cory Heisterkamp" <coryheisterkamp at gmail.com>
> To: <greenkeys at mailman.qth.net>
> Sent: Friday, August 31, 2012 11:21 AM
> Subject: [GreenKeys] Model 32 Tape Reader Q
> 
> 
>> I had a little time to play with the ASR-32 last night and see why the
>> tape reader isn't functioning. Found the power supply with a blown
>> fuse and replaced that. The reader solenoid then springs to life,
>> lifting all the sense pins when I plug the machine in, but it doesn't
>> cycle, it just keeps the pins engaged. If I align a tape over the read
>> pins and turn the reader on, the machine will print the character
>> that's encoded at that point. It just won't retract pins/advance the
>> tape.
>> 
>> I do have ASR33 schematics I've been looking over for this 32, but the
>> way these things are laid out...somebody had a sick sense of humor!
>> 
>> Thoughts? For the record, I'm still running it with the phone dial half-rotated.
>> 
>> Thanks,
>> Cory
>> 
>> 
>> 
>> On 8/28/12, Teletypeparts <teletypeparts at aol.com> wrote:
>>> 
>>> Cory,
>>> 
>>> Welcome to the group!
>>> 
>>> I assume your 32 ASR is a Telex.  If so it will be 66WPM until you change
>>> the gears to 60WPM which is an RTTY speed.   66WPM is the old European Telex
>>> speed.
>>> 
>>> With it plugged in to the AC, rotate the dial some and it should stop
>>> running open and run closed.  The connect light will be on.  Put a short
>>> pencil or whatever in the dial to keep it in place and then you can test the
>>> machine.
>>> 
>>> Another way is with the power plugged in, take a 9 volt batt and touch the
>>> line leads that go to pins 8 and 9 on the terminal strip.  One may be ground
>>> and that will be obvious.  Use the other two.  One way the batt will close
>>> the loop just like the dial and the other way the Telex will shut down and
>>> you can depress local to run the machine until you unplug the AC and then it
>>> will revert to its original mode.  There is AC on that strip, so be careful.
>>> 
>>> 
>>> Have fun.
>>> 
>>> Wayne
>>> KB1FDW
>>> 
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