[GreenKeys] TTY Mod 33 broken part

[teletypeparts at comcast.net]

Doug, 

I have a dozen of these. I will get one out to you tomorrow. Remind me of the address. Its too much to explain in an email, but when you get the part lets chat on the phone about the proper adjustment of the enable spacing mechanism. 

Wayne 
KB1FDW 

----- Original Message -----

From: "Douglas W Jones" <douglas-w-jones at uiowa.edu> 
To: "GREENKEYS BULLETIN BOARD" <greenkeys at mailman.qth.net> 
Sent: Thursday, August 4, 2016 5:59:54 PM 
Subject: [GreenKeys] TTY Mod 33 broken part 

I've figured out why the spacing mechanism on the TTY Model 33 I'm working on doesn't work. See: 
-- http://www.cs.uiowa.edu/~jones/pdp8/UI-8/2016/08/04-TTYreturnLobePlate.JPG 

Without part 180571, the return lever locks out the spacing pawls, and never unlocks when the carriage reaches the left margin. As you can see, the lobe that actually does the unlocking has broken off. This is a part that ought to be easy to fabricate, so: 

a) does someone know how long the projection should be? A photo of the part sitting on a ruler would suffice. Micrometers or calipers are nice, but unnecessary. 

b) alternatively, has anyone got a spare? (tape the part flat to a half-sheet letter of transmittal, and it ought to post for 50 cents -- no need for bubble wrap and oversize padded envelopes for something like this.) 

Doug Jones 
jones at cs.uiowa.edu 
______________________________________________________________ 
GreenKeys mailing list 
Home: http://mailman.qth.net/mailman/listinfo/greenkeys 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:GreenKeys at mailman.qth.net 

2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/ 
1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html 
Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to teletypeparts at comcast.net 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20160804/62032a0e/attachment.html>