[GreenKeys] newbie ASR33 teletype questions

steve shumaker shumaker at att.net
Sat Feb 2 15:40:15 EST 2019


slowing exploring the innards of the ASR33 I scored a while back and 
have some questions about it

The Bill Degnan presentation "Using The ASR33" from 2016 VCF-East 
mentions a "clothespin fix" for "chattering".  Can anyone offer more 
detail about this?   My unit comes on in local mode without an issue and 
appears to operate properly until I place the tape control in the run 
position. At that point motor and punch system comes on and the punch 
but not the reader goes active until I switch it back to off or free.  
Is that normal in local mode or is there an issue?  Unit is completely 
quiet in line mode - tape switch has no response in any position     (I 
haven't figured out the comm set up yet - UCC is strangely configured).

The Tape Reader unit frame appears slightly bent but of more concern is 
that is seems to NOT have 2 of the 4 double wire gold contacts on the 
left side of the reader that everything I've seen says should be 
present.   Under close examination,  it appears to have been built this 
way (contact points for the double gold wires are also missing and there 
are no wires unaccounted for if something had been cut away).

Any suggestions/comments welcome.

This is turning out to be an unusual machine!


Steve






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