As you might have guessed
I collect and experiment with modern and vintage
Time & Frequency instruments including
quartz oscillators,
atomic frequency standards,
frequency counters,
phase comparators,
time receivers (such as WWVB, GOES, Loran-C, GPS),
UTC clocks
and any other devices related to high-precision timekeeping.
Wanted
Still missing from my HP oscillator collection is an HP 104AR.
If you have one please let me know.
Almost anything by Austron, Tracor, Datum, Trak, Efratom, or Spectracom.
Old books, articles, journals, or equipment manuals related to Time & Frequency.
Wang 700-series programmable calculators (1970's, core memory, nixie tubes).