[ARC5] advanced neon bulb antenna input circuits?

[Henry Mei'l's]

Thanks Dennis. I've looked at the Citel Inc. website, as far as  I can see,
 their lowest gas discharge first occurs at about 75 volts.

Henry
  ----- Original Message ----- 
  From: Dennis Monticelli 
  To: Henry Mei'l's 
  Cc: ARC-5 Maillist 
  Sent: Tuesday, February 01, 2011 4:46 AM
  Subject: Re: [ARC5] advanced neon bulb antenna input circuits?


  I think the next step up in protection is a small gas discharge tube.  They come in different voltages and develop a very low resistance when the gas ionizes.  The capacitance is very low (<1pF) so you can use them across most antenna inputs without effect.  I use the common axial lead types extensively in lieu of neon bulbs.

  Look up Citel Inc.

  http://www.citel.us/gas_distcharge_tubes_overview.html

  Dennis AE6C


  On Mon, Jan 31, 2011 at 12:29 AM, Henry Mei'l's <meils at get2net.dk> wrote:

    I've been told that there are neon bulb protective antenna input circuits over and above just
    placing a neon bulb across the input (albeit sometimes ground-returned in
    series with a variable resistor). Couldn't find these circuits in my Google search.
    I'd appreciate pointers here.

    Henry
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