I built a TubeHobby clock in 2006. A couple years ago it quit working and kept
blowing the fuse. During troubleshooting, I found that the 170 power supply
measured 24 ohms to ground. I removed C6 and the 24 ohm resistance went away.
C6 checked good, so I reinstalled it and the clock worked. I do
Michael,
Those issues are most likely to be caused by poor quality components, rather
than a design flaw. The inductor has a high voltage across it, and the capacitor
handles a large ripple current.
You might want to look into higher-priced parts. Military grade capacitors and
inductors cost
Had another TubeHobby clock start blowing fuses the other day and I know
others on this forum have had similar issues. I have 4 of these muxed
clocks and 2 that drive IN-18’s, the others use smaller tubes like the
Z566M and the Z574M and have been fine. However, I have had issues now with
bo
