Hi all,
This topic was covered before, but we allways will find more to say about this.
I was servicing TV rcvrs for few years.
Sometimes I found RG58 and RG59 coaxial cables used for the FB transformer
to CRT anode HV/EHT (18 to 27 kV) connection, especially inside the old TVs
(made in the '70s and early '80s, some by well known european companies).
Another reason for using these coaxials was for the some plus of filtering of
the HV/EHT CRT voltage (shield connected to gnd), some cables were
over 2 m lenght, the extra lenght being rolled and fixed on the TV ccabinet.
Only once I found a such cable to be deffective, and it was because of touching
of a high power hot resistor (insulation was melted).
If the RG58 withstand 25kV with no problems, I don't want to think about
what voltage level should have for the RG141 teflon insulated coaxial to fail...
I'm using double insulated cable at 3 kV. The insulation is similar to the one
used for the TV/monitor focus voltage connection wire. No problems.
73,
Traian
rich wrote:
> >
> >hi all,
> >
> >i found high voltage connectors . but now how about the coax cable i should
> >use for them .
> >the connectors are rated 6kV but the coax that should be used ( RG141 ) is
> >only rated 1.9kV (at least i think it is) .
>
> That is likely the RF V rating, RG-58 and RG-141 will easily handle
> 12kVDC - unless a rabbit gets in your room.
>
> >I have to get 3kV into an gs35b amplifier .
> >
> >73 jan , ON1DSE
> >
> >--
> >FAQ on WWW: http://www.contesting.com/FAQ/amps
> >Submissions: amps@contesting.com
> >Administrative requests: amps-REQUEST@contesting.com
> >Problems: owner-amps@contesting.com
> >
> >
>
> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/amps
> Submissions: amps@contesting.com
> Administrative requests: amps-REQUEST@contesting.com
> Problems: owner-amps@contesting.com
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|