[time-nuts] FTS4060/S24 Location of E26 Test Point & ConfirmOperation?

[John R. Ackermann N8UR]

Tom Van Baak wrote:
> It's only a 3 digit
> thumbwheel with LSD resolution of 2e-14 so the
> maximum range is 2e-11.

Hi Tom --

That's quite a bit finer resolution than the 5061A C field setting -- I 
think the spec says something like 7x10e-13 settability.  My 5061A from 
Corby (which should arrive today, yay!!!) has an FTS tube in it.  Do you 
know if the FTS tube has a smaller change per unit of control voltage 
than the HP tube, so that an FTS tube in an HP chassis has finer 
settability than with the HP tube?  Or does the FTS chassis just have 
finer control over the C field voltage applied to the tube?

(I'm speculating because it appears the HP option 4 tube also results in 
finer control without any changes in the chassis circuitry.)

John