[time-nuts] HP 5245L counter circa 1967 humor
gcarlistaa at garychatters.com
Sat Jan 9 14:59:48 UTC 2010
David Forbes wrote:
> Coincidence of the day. I spent the other evening in a vain attempt to
> get more sensitivity out of my 5245L so that it would respond more
> reliably to the tiny 32kHz signal on my nixie wristwatch oscillator.
> I'll be tuning up a lot of them in the coming weeks.
> I have a parts unit on hand (burned-up oven) and an original manual.
> Both come in handy.
The 5261A Video Amplifier plug in will get the sensitivity down to 1 mv.
The 5258A Sensitive Prescaler will also get the sensitivity down to the
1 mv range as well as extend the upper frequency range to 200MHz.
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