Corby wrote:
The 3010A prefix identifies that date it was made.
Specifically, it identifies the "series" of the product -- the date the
last revision to the product was adopted. The "3010" part is the
encoded date for that particular series (10th week of the 30th year past
HP "year one"),
Perry,
The 3010A prefix identifies that date it was made.
It should also have a 10811A marking.
The resistor value is for applications needing precise EFC.
Usually found in HP 5065A, 5061A, and 5061B.
If it also has a 60109 marking it has slightly better short term
stability at one Tau.
Hi,
In the two HP 105B's I recently acquired both had the 10 Mhz 3010A series
oscillator which appears to be pin for pin compatible with the HP 10811 series
but it has a resistor value listed on the outer case.
Trying to research it, the HP 105A/B supplement vaguely said to take a look at
the HP