Keypunch that was on eBay

Jim Beacon jim at g1jbg.co.uk
Sat Apr 4 14:46:22 CDT 2009



> From: roger.holmes at microspot.co.uk
> To: cctalk at classiccmp.org
> Date: Sat, 4 Apr 2009 20:19:10 +0100
> Subject: Keypunch that was on eBay
>
> Thanks for whoever it was who posted the info on the IBM 029 keypunch
> on eBay. I have won it, nobody else bid. After it has been shipped
> across the Atlantic I will have to think about converting it from 60Hz
> to 50Hz. I have the remains of a 50Hz verifier which has a 240v / 50Hz
> motor I should be able to use. Hopefully the rest runs on DC, so a
> step down transformer before the transformers and bridge rectifiers
> might be enough. Shipping costs more than the item of course.
>
> Anyone have any thoughts if it is worth trying the whole thing with
> just a 240 - 110 transformer? If the motor burns out, not the end of
> the world.
>
>
We used to have motor-generator sets for running 60Hz IBM stuff off 50Hz 
supplies. ISTR it was important for some timing function or other (we are 
talking 9020 here, and it was scrapped shortly after I joined the company).

Jim.




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