[time-nuts] HP 523B frequency counter & Sputnik
vilgotch at bigpond.net.au
Fri Oct 5 03:02:37 EDT 2007
I have been lurking here for quite a while but here is something I can ask
> A little known piece of Sputnik history...
I have a couple of restored and working HP 524B/C counters, each 8 digits
wide with nearly 100 tubes. They work well and the OCXOs in them are still
pretty close to my two GPSDO references after 50 years! As it happens I have
one out on the bench at the moment replacing the unobtainum delay line with
a digital delay circuit. This article reminded me that I would love to find
the matching 560A digital recorder - both my counters have the optional
interface kit for it installed.
Even though I am down here in sunny Australia, our dollar is strong and I
would love to hear from anyone who knows where one might be found.
Regards to all,
Morris Odell VK3DOC
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