[time-nuts] HP5065A C-field mods and optical unit mods

[ws at Yahoo]

Corby

 

Just a 1 cent thought that may not apply or be accurate.

 

C-fields are current sensitive, so if they are wound with copper wire, any
small change in their temperature, even when temperature controlled, could
have a effect much greater than 1PPM on that current when driven from a
fixed voltage thru a resistor.

Does anyone use current drive?

 

ws

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Corby posted:

Attached is the schematic of the C-field supply.

 

Cheers,

 

Corby