[time-nuts] HP 58503A acurate UTC time

Timestep Information at time-step.com
Wed Mar 12 14:53:19 EDT 2014

HP 58503A 

Hi Hal

Good point, I don't want the display lighting my office up at night, hence I often turn it off.

What I really need is the circuit of the front panel, then I could dim the display and leave in on 24/7



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