On Thursday 15 February 2007 13:56, John T. M. Lyles wrote:
> Jim
> My old Seimens datasheet shows that to be 145 VDC +/- 20% breakdown,
> <750 V impulse breakdown (100 V/us impulse) and <1100 V impulse
> breakdown (10,000V/us risetime impulse). It can handle 5000 amps for
> a single impulse, with approxiamately 200 shots before failure. Its
> AC current rating is 20 Amps RMS when first breakdown (for 11
> cycles), discharging 35 amps followon. It should extinguish on the
> next zero crossing, so this is only usually 1/2 cycle or so - unless
> it is grossely overdriven. It is specifically made for AC
> applications, like across AC power circuits for protection. Things
> like CATV amplifiers and remote 24VAC systems outdoors, that have ac
> power feeder.
>
> As far as knowing the gap measurement, or material, it doesn't say.
> It has some 'rare' gas inside but not radioactive as far as I can
> tell. Why do you need to know those parameters?
>
> 73
> John
> K5PRO
>
> >Message: 5
> >Date: Thu, 15 Feb 2007 07:27:40 -0800
> >From: "k7rdx" <k7rdx@charter.net>
> >Subject: [Amps] Seimens grid/cathode glitch spark gap device
> >To: "Amps Amps" <amps@contesting.com>
> >Message-ID: <000b01c75115$d500a1e0$0a00a8c0@h8k9n6>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >Anyone have specs for the Seimens B1-C145 spark gap? I would like to know
> >measurement of gap as well as material device is made from..Thanks in
> >advance,Jim K7RDX..
>
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