On Thu, 01 Dec 2011 18:22:28 -0600, John Fields
wrote:
On Thu, 1 Dec 2011 14:24:07 -0000, "Ian Field"
wrote:
"Rich Grise" wrote in message
...
John Fields wrote:
If you have some data which proves that Zeners configured as
surge-stoppers are somehow inferior to MOV's, I'd like to see it.
The only actual evidence I have is entirely anecdotal - I was once
working at an outfit that made various high voltage power supplies, and
they used MOVs all over the place for arc protection. One day, Transzorbs
showed up in some trade mag; we tried some and the muckety-mucks decided
to replace _ALL_ of the MOVs with Transzorbs because they made MOVs look
like two-leaded turds.
Hope This Helps!
Rich
I use a lot of MOVs because they appear frequently as salvageable items in
scrap equipment,
---
A _lot_ of MOVs?
Idiotic, but understandable, since you don't seem to understand that
MOVs culled from trashed equipment are, more than likely, damaged
goods.
Do you know how to test an MOV in order to determine whether it's in
spec or not?
---
no doubt I'll start using tranzorbs once I start finding them.
---
More to the point, the question is, "Will you recognize a transorb
once your eyes land on it", and will you know how to apply it?
Once I looked up a Sturmey Archer "dynamo", I relegated Ian to the
dunce corner... along with JL. At least JL should have known the
idiocy of Ian's scheme... particularly given JL's statements about
voltage limiting... he really had no clue ;-)
...Jim Thompson
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