[ARC5] 1 MHZ Success

[Robert Eleazer]

I decided to see if I could replace the 1 MHZ calibrator module in my SG-297 with a 7805 regulator powering a 1 MHZ TTL oscillator.  Despite having wired it wrong the first time, I eventually got it to work on the bench (with a weird but stable signal on the scope at 1.000062 MHZ).  Then I plugged it into the SG-297.  And it works.  The 1 MHZ oscillator feeds a harmonic oscillator to produce signals every 1 MHZ across the range of the instrument, so I guess that approach tames the TTL waveform a bit.

Wayne
WB5WSV         
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