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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Big\s+Tetrodes\s+at\s+UHF\s*$/: 3 ]

Total 3 documents matching your query.

1. [AMPS] Big Tetrodes at UHF (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Sun, 21 Mar 1999 14:37:55 -0500
On Sat, 20 Mar 1999 21:41:45 +0100 Peter Sundberg <sm2cew@telia.com> writes: Hi Peter, Parasitics at 70cm ? Is it possible that you were experiencing a cavity effect internal to the tube? I believe t
/archives//html/Amps/1999-03/msg00525.html (10,591 bytes)

2. [AMPS] Big Tetrodes at UHF (score: 1)
Author: sm2cew@telia.com (Peter Sundberg)
Date: Sun, 21 Mar 1999 22:27:54 +0100
I think the parasitic are low frequency, definitely not 70 cm. The YL1050 family tubes are 1.6 kW plate dissipation up to 1 GHz. Can easily put out 2.5 - 3 kW on 70 cm and 1 kW on 23 cm. My question
/archives//html/Amps/1999-03/msg00529.html (8,000 bytes)

3. [AMPS] Big Tetrodes at UHF (score: 1)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Mon, 22 Mar 1999 00:29:19 +0000
As I understand it, gas-induced arcs wouldn't the tube to be biased on, because the arc doesn't need electrons in order to get going - it only needs HV and a source of material to ionize. The arc the
/archives//html/Amps/1999-03/msg00531.html (8,388 bytes)


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