[Amps] Interesting news

on4kj on4kj at skynet.be
Sun Mar 14 14:15:44 EST 2004


  Is this the bigger big big brother from the old miniature triode 6CW4 ?
  We used the 6CW4 as a HF amplifier in the sixties, but only in VHF
receivers front end.
  I just wonder what will be the prices of such a beast.
  Are there  yet caracteristics available ?
  Hopefully this power tube can work on higher frequencies then 30Mc/s
  Thanks for some more info.

  Jos ON4KJ     ( OR4G operator )

  ----- Original Message ----- 
  From: "Leigh S. Jones" <kr6x at kr6x.com>
  To: "AMPS" <amps at contesting.com>
  Sent: Saturday, March 13, 2004 5:54 AM
  Subject: [Amps] Interesting news


  > Eimac Offers New Radio Power Tube
  > The Eimac division of CPI is out with a new power tube for radio
  > transmitters that will be on display at the NAB show.
  >
  > The air-cooled 3CX1500D7 ceramic metal triode operates at 5 volts, 30
  > amps. The company said it delivers the same performance in many
  > applications as a pair of 3-500Z glass tubes.
  >
  > "With output power capability above 2 kilowatts from this single new
  > tube, actual usage at 1500 Watts does not even begin to approach the
  > design limits," according to spokesman John Allan in the company's
  > announcement.
  >
  > "Mounting is in the same SK-410 socket used by the 3-500Z, and the
  > filament voltage is the same. Since the 3CX1500D7 filament current
  > matches that of two 3-500Zs, we do advise that related circuitry (such
  > as RF chokes) be checked for their ratings if this tube is applied in
  > a retrofit. It may be operated in zero-bias, grounded grid
  > configuration at plate voltages up to 3kV, and may be operated up to
  > 6kV with appropriate grid bias."
  >
  > He said the device will interest equipment manufacturers and DXers for
  > use in RF linear amplifiers.
  >
  >
  >
  >
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