[GreenKeys] Chadless tape and a M14 Transmitter-Distributor

Ralph Mowery rmowery42 at charter.net
Mon Feb 1 00:02:58 EST 2021


I have seen some different lids.  One had small round holes that were too
small for the chads and the other has slots where the chad can rise up.

Ralph ku4pt





-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Jim Cooper
Sent: Sunday, January 31, 2021 11:35 PM
To: ac8y at thetower.us; greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Chadless tape and a M14 Transmitter-Distributor

On 31 Jan 2021 at 20:46, ac8y at thetower.us wrote:

> Apparently different shims are
> required on the XD retaining lid
> plate for chadless tape. I messed
> with lots of different
> spacings--regular tape always works
> and chadless tape never works. 
> 
> Any tricks, ideas, or suggestions? 

The first step I would suggest is to turn 
off the TD motor, put the chadless tape 
in the reader head, and turn the motor 
BY HAND, slowly in the direction the motor 
normally runs ...  as the pins come up, look 
through the slots and see where the pins are 
relative to the chads.  It might be that the 
advancing pawl that steps the tape ahead 
one character might be a bit out of alignment. 

Jim  W2JC 




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