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HP 5316A Teardown and Frequency Standard

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Kjo:
I have assembled three different kits for this OCXO design which is compatible
with both the HP5315A and HP5316A.
Everything is through-hole and assembly can be completed in 15-20 minutes.
At this time I have the kits on my website @:

https://www.hollywoodcontrols.com/phpHP/HP004OK.php

Where you can get the kit with or without the MV85 oven oscillator
or just the single PCB.

If you prefer eBay you can get the same thing at:

https://www.ebay.com/itm/155741314023

But eBay takes about 25-30% of sellers price which includes listing price, shipping and sales tax.
So the prices are higher.

AMR Labs:
Anybody know if the HP5316A/B uses reciprocal counting for the lower frequencies? so measurements are fast and accurate even in the low Hz range. If not, is there a similar HP model that does use reciprocal counting? Thank you.

bdunham7:

--- Quote from: AMR Labs on January 05, 2024, 01:30:51 pm ---Anybody know if the HP5316A/B uses reciprocal counting for the lower frequencies? so measurements are fast and accurate even in the low Hz range. If not, is there a similar HP model that does use reciprocal counting? Thank you.

--- End quote ---

Yes, it is a reciprocal counter and will give you an accurate reading in one gate cycle. 

pqass:

--- Quote from: AMR Labs on January 05, 2024, 01:30:51 pm ---Anybody know if the HP5316A/B uses reciprocal counting for the lower frequencies? so measurements are fast and accurate even in the low Hz range. If not, is there a similar HP model that does use reciprocal counting? Thank you.

--- End quote ---

According to 3-4 of the 5316A operating manual:  "To maximize resolution, the 5316A uses a reciprocal counting technique for frequencies below 10 MHz, automatically switching to conventional frequency counting for frequencies above 10 MHz."

AMR Labs:

--- Quote from: pqass on January 05, 2024, 03:23:08 pm ---According to 3-4 of the 5316A operating manual:  "To maximize resolution, the 5316A uses a reciprocal counting technique for frequencies below 10 MHz, automatically switching to conventional frequency counting for frequencies above 10 MHz."

--- End quote ---

Thanks guys, then indeed I was looking at the correct model. Its a pain having to wait 10 seconds before getting a low Hz reading with my current counter, specially when trying to make fine adjustments to a 60Hz oscillator.

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