[time-nuts] HP 105B Problem?

[Greg Burnett]

Hi Ed,

IIRC it's normal for the circuit check meter readings to behave "squirrelly" 
as you've described for the 3 output checks. I think this function is pretty 
much only to "crudely" show that you have (or don't have) each output.

As for your 100kHz & 1MHz dropping-out when you load your 5MHz output into 
25 ohms, this might be a sign of a marginal condition of your output 
section - e.g., 5MHz signal dropping too low when loaded with 25 ohms?

However in practical use I think various destination instrument's timebase 
inputs might require a bit more voltage than you'd have at best into 25 ohms 
anyway. So I'd probably not load the 105B into such a low impedance.

Best,
Greg