Scored #5 on list: Pilot TV-37

[dtvmcdonald]

Originally Posted by Dave S

Got lots of zener diodes but no TVS. Does anyone know if two 8.2 volt 1 amp zeners connected back-to-back will work? (I'm guessing the difference between the 1 amp rating on the zeners and the 1500 watt rating on the TVS is continuous vs. transient current, but how do they compare?)

Yes, it should work. Back to back (i.e. in series, back to back or head to head)
is OK. Its in parallel, opposite directions, that clamps at 0.7 V. The
other guy was wrong.

The peak current, during warmup, will be about an amp, maybe a little more,
but only during a small part of the cycle. At the peak the filament
all also conduct about that, total twice that.

Doug McDonald