[Milsurplus] I-177B tube tester

[John Hutchins]

Group -
While I am in the unit replacing 3 carbon comp resistors an 3 caps. I am 
thinking about replacing the tube rectifiers with silicon to reduce the 
heat in the unit.
Adding zeiners to compensate for the increased voltage.  Looking at the 
schematic looks as though the unregulated DC has a bunch of AC riding on 
top which may be required to perform an accurate tube test.  Would 
adding the zeiners  degrade or change the  functionality, performance of 
the unit if the measured DC values were met? 
-> insert response <-
Have made multiple DC voltage measurements around the rectifiers to 
benchmark the existing potentials.   Used a 30Kohm volt meter.

Thanks
Hutch