[time-nuts] New Time nut FRK-H repair questions

[swingbyte]

Hi, I've been reading this group for some time now and have recently 
purchased an Efratom FRK-H unit.  Now I need to make it work!  I have 
powered it up and after warmup it draws ~400mA at 26.5V.  I have a 10MHz 
output sinewave and a lamp voltage of 8.14V.  The xtal ctrl voltage is 
12.2V and the lock is 0 v.  I haven't been able to find out what the 
lock voltage should be for correct operation, but having the xtal 
control voltage so high makes me think that if might be at its limit.
Can someone suggest my next course of action?

Thanks for your help

Tim