[GreenKeys] 28 Tape Printer questions

[Nick England]

Oops, 151562 not 1515162

Nick England K4NYW
www.navy-radio.com

On Mon, Sep 7, 2015 at 1:46 PM, Nick England <navy.radio at gmail.com> wrote:

> With no loop current, it'll run open and spit out blank tape.
> Motor relay is probably for auto-start when signal line opens?
>
> Lamp - Teletype Part 1515162  also known as 6S6DC/120V
> S6 bulb, 6 watts, Double Contact BA15D base, 120v filament
> http://www.bulbtown.com/6S6DC_120V_MINIATURE_BULB_BA15D_BASE_p/40804.htm
>
> or perhaps at your local hardware store which has an assortment of S6
> bulbs.
>
>
>
> Nick England K4NYW
> www.navy-radio.com
>
> On Sun, Sep 6, 2015 at 9:36 PM, Paul Heller <paul0926 at comcast.net> wrote:
>
>> Greetings.
>>
>> I’m nearly finished reconditioning a 28 Tape Printer and have a few
>> questions:
>>
>> 1. I need a bulb. I believe this is referred to as a two contact bayonet
>> style socket (?). Does anyone know the bulb number?  I’d like to get one
>> and perhaps an extra.  I measure 120V AC across the contacts.. There was a
>> GE1314X in there that blew immediately. Somebody up the line somewhere must
>> have replaced the bulb and never powered the unit up. When I searched the
>> internet, the 1314X is rated for 12V so no wonder….
>>
>> 2. There is a relay in the LESU that trips at about 12V DC and sends
>> power to the motor. It was wired to a terminal strip in the base. Any idea
>> how this was used in service?  I’ve bypassed it, but curious how it would
>> have been energized in operation.
>>
>> 3. I had the LESU upside down while I was tracing the wiring trying to
>> figure out why the motor would not turn on (that’s how I found the relay).
>> In the upside down position the motor runs and that is all. When I turn the
>> LESU upright, the motor still runs but now the unit chatters and spits out
>> tape (nothing on the tape except the newly formed sprocket holes). The tape
>> printer is not hooked up to a loop yet. Is this normal, or might something
>> else (polar relay?) be bad?
>>
>> Thanks for any advice.
>>
>> Paul
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>
>
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