[GreenKeys] Print Hammer Heads

[Til128 at aol.com]

Silly question:
 
Is there much of a difference (Mechanically) between a 28 and a 35  reperf?
 
I never graduated beyond 28.
 
TT
 
 
 
 
In a message dated 12/6/2015 9:06:05 P.M. Eastern Standard Time,  
navy.radio at gmail.com writes:

This one. Many many thanks for tackling this  George. 

173979 specs
federal stock no  5815-00-084-5008
Overall height - 0.141 inches nominal
Overall length -  0.391 inches nominal
Overall width - 0.250 inches nominal
Material -  Plastic
Special features - One slot, 0.047 in. w by 0.188 in.  lg

On Sunday, December 6, 2015, Geo. Hutchison <_w7tty at centurylink.net_ 
(mailto:w7tty at centurylink.net) > wrote:

ALL - - -

Methinks I should clarify the nature of  the print hammer heads.

The model 32/33 typewheel hammer covers issue  was settled over a year ago.

The items I am working on preparing are  the TTY P/N 173979 HEAD - as 
indicated in a TTY Corp S.O.P. P/N 176138 Mod  Kit for the model 28/35 perforator 
and reperforator. In this kit the fourth  of six components listed on the 
list on the part packaging  envelope.

These are the cushioned heads that deliver the whack to the  tape - thru 
the ribbon- and to the selected character on the surface of the  type wheel, 
creating a darkened image of the selected character on the  surface of the 
tape being prepared.

Please note that the character  printed is six character spaces ahead of 
the actual character being  perforated by the punch mechanism.

Some mechanisms print the  character on the tape feed wheel perforations, 
and others imprint the  character on the inboard/ upper edge of the tape.

Please examine your  machines closely. Any characters printed in sanskrit 
are in most cases  probably bogus.

W7TTY




-- 

Nick England K4NYW

_www.navy-radio.com_ (http://www.navy-radio.com/) 




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