Re: Connector on HV Focus wire?

According to my trusty G08 manual, there is a 10.3KV line passing out of the
HVT and through the focus assembly. Perhaps reduced a bit by the resistors in
the focus assembly. Dunno. I have no idea what the actual current through the
focus wire is.

10.3KV seems to be a bit high for any connector that I've ever seen. However, I
did receive an e-mail from a 'mystery' vectorcolelctor, and he suggested the
following:

---------------------------
Typically connectors have a current and voltage rating.
The current is limited by the pins amperage capacity.
The voltage is limited by the arcing strength which happens during a live
insertion/extraction of the connector from a working circuit.

 I would think there would be no issue adding a connector or spade connector in
the focus wire as long as,

1. wire is rated for the current
2. connector is rated for the current
3. the connector is never inserted/extracted when the HV is working
-------------------------

Does that sound about right to those of you with the EE degrees?

tm

"Fish, David" wrote:

> I looked up the specs on a typical insulated spade
> lug connector from AMP (fully insulated Faston) and
> they are rated for 600V applications. There's an
> interesting note in parenthesis that says (1000V
> for signs and fixtures). What's the FOCUS voltage
> typically?
>
> Dave
>
> -----Original Message-----
> From: Tom McClintock [mailto:tomm@mgcap.com]
> Sent: Thursday, March 13, 2003 11:32 PM
> To: vectorlist@synthcom.com
> Subject: VECTOR: Connector on HV Focus wire?
>
> So I've got this G08 deflection board which had been
> stripped of all it's transistors (and a few other
> bits). Someone had also added an insulated spade
> connector to the HV focus wire.
>
> Since the focus wire is the only soldered wire between
> the HV assembly and the deflection board, a connector
> makes it pretty easy to work on the board. No need for
> constant desoldering of the focus wire.
>
> However, I can't believe this is a good/safe thing to
> do since I can find no connector that is properly rated
> for the voltage in the focus wire. Then again, the
> spade connector on this G08 deflection board is not
> melted.
>
> Any advice or wisdom here?

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Received on Fri Mar 14 07:49:26 2003