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Re: The system of James Lerch


 

Hi Bill,

In the Jean Texereau's HOW TO MAKE TELESCOPE, the requirments of
transformers for evaporation and H.V. discharge is at least 20V,50A
and 5KV,50MA. I think that a welding machine(my LINCOLN AC/DC 225 AMP
WELDER ) is a great and cheap transformer for evaporation.

Jongmin



--- In VacuumX@..., "arcstarter" <arcstarter@y...> wrote:
Hi James,
Can youy comment on the power requirements (volts, amps) of your
evaporation filament?

Thanks!

-Bill

--- In VacuumX@..., "James Lerch" <jlerch1@t...> wrote:
----- Original Message -----
From: "arcstarter" <arcstarter@y...>

Thanks Don, for your reply regarding the oxygen plasma.

This list sure has been quiet lately...
ON that note, let me recount my latest "WTF?" moment :)

I've just sealed the chamber on an 8" optic I'm coating, pump
down
went as
<snip>

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