[time-nuts] Bulova crystal oscillator

Glenn Little WB4UIV glennmaillist at bellsouth.net
Thu Sep 7 02:26:42 UTC 2017


I have a Bulova crystal oscillator, part number 1505869-1K, model number 
AMO31HP-V-1, NSN 6N5840-797-7659.
The NSN tells me it is a little old and that it was a turn-in, probably 
repairable at some higher level.
The frequency is marked 100.000000 KHz.
The oscillator voltage is 30 V DC and the oven voltage is 115 VAC.
It has an octal plug on the bottom with the pins marked:
1 - oven indicator
2 - A.F.C.
3 - heater power
4 - +30 VDC
5 - case ground
6 - ground
7 - heater return
8 - 100 KC output.

With the nameplate listing the frequency in KHz and the case listing the 
frequency in Kc and the older NSN, it appears that this oscillator was 
made for a longer period of time.

The top has two adjustments, both with a screw cover.
One is freq adj and the other is output adj.

Does anyone have any data on this oscillator?
What would I expect the accuracy to be?
The printed frequency implies, to me, that the accuracy is in the realm 
of 0.001 Hertz at 100 KHz.
Did I miss something here?
The top also shows this to be a "Generator Reference Signal".

Any insite appreciated.

73
Glenn
WB4UIV

-- 
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Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
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