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Re: high voltage technique for external access to x-ray transformer?
Original poster: "Peter Terren" <pterren1-at-iinet-dot-net.au>
Good question. For the internals of a 125kv x-ray head see
You have to get at the tube to remove it and connect to the HV with very
heavily insulated wires such as lots of flexible pvc tubing in incremental
sizes over each other. It would probably be easier to repot the dental
transformer in a separate container under oil like I have for mine.
----- Original Message ----- From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Tuesday, September 28, 2004 1:14 AM
Subject: high voltage technique for external access to x-ray transformer?
>Original poster: "Jack Vandam" <snotoir7674g-at-mindspring-dot-com>
>Thanks for the great responses to my previous inquiries. It's wonderful to
>see the vast amount of high voltage experience here. Another question if I
>may, this time concerning how to properly fabricate a high voltage terminal.
>I have a small dental x-ray transformer of the Picker/ SS White type (90 Kv
>-at- 7 mA max). It is already within its chassis (original metal x-ray
>tubehead) and would need filled with oil for proper operation. Since I'd
>like to make the hv accessible from outside the case, what would be the
>cheapest and most insulating way to provide external high voltage terminals?
>On the big Westinghouse unit I spoke of recently, I noticed that its sockets
>were recessed and composed of bakelite or similar. How they are attached to
>the metal is unknown though as I would imagine some sort of seal to keep out
>ouside elements. Anyway, any thoughts here would be appreciated. I know
>you guys have had to deal with these issues in your hv work and may be able
>to give me some ideas.