[GreenKeys] UPDATE- shockingly basic question - Teletype Model 33 ASR

[Jim Cooper]

On 11 Feb 2021 at 11:20, Andy KN4UCL wrote:

> *Well that makes sense. Looking at
> my ring binder (Tech bulletin 310B
> Vol2) I have a power supply circuit
> diagram, but I am not sure where I
> would physically plug in my highly
> underused budget Hantek scope...* 

If your scope can handle the voltage, 
one simple place to put the scope is 
across the current limiting resistor 
in the loop (usually about a 2k resistor). 

You will then see the square pattern of 
the character code. 

w2jc