[time-nuts] Comparison of HP 5065A optical units

[cdelect at juno.com]

Matt,

There are three versions.

Oldest are the bluish units

Next the olive green units

And last the silver unpainted units

A few of the bluish ones do not have the TED installed and the lamp
oscillator values are slightly different.

The olive green units all have the TED

The silver units have the TED but some have a coil shorting across the
TED.

See:
https://www.eevblog.com/forum/metrology/the-hp5065a-and-its-ted-some-info
!/

Cheers,

Corby