[GreenKeys] Model 14 keyboard adjustment

Jeffrey Golas jeffg at junknet.net
Sat Aug 5 20:23:26 EDT 2023


Correct me if Im wrong but could just be "dirty"; as the cam rubs against the switch youre seeing noise like a dirty volume pot.

Id use some alcohol and a business card and scrub the contacts (plus Im not sure thats even a terrible signal for a 1940s device. Going machine to machine I dont think that tiny bit of leakage woulda mattered.

Again, correct if wrong, Im here learning too.

Jeff KC3GJX

> On Aug 5, 2023, at 8:17 PM, Eric Moore <mooreericnyc at gmail.com> wrote:
> 
> 
> Hello all!
> 
> I am working on my 14s keyboard. I have attached a photo and a trace from my scope. 
> 
> It looks like it is bouncing? Any ideas how to improve the signal? This is R, so 01010
> 
> Thank you for any help! I have my printer kinda working, I am going to use the keyboard to dial in the timing on the governed motor.
> 
> -Eric
> <20230805_190327.jpg>
> <20230721_121647.jpg>
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