Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+3\-500Z\s+Grid\s+Current\s+Rating\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+3\-500Z\s+Grid\s+Current\s+Rating\s*$/: 3 ]

Total 3 documents matching your query.

1. [AMPS] 3-500Z Grid Current Rating (score: 1): Author: mike@g0mjw.freeserve.co.uk" <mike@g0mjw.freeserve.co.uk (M.J.Willis); Date: Tue, 4 May 1999 10:29:05 +0100; I have a single 3-500Z amplifier. When I run it at 2.4kV EHT at the rated 400mA of anode current, I get 450W out with 130mA grid current and 60W drive. This is on 50MHZ. The problem with this is the; /archives//html/Amps/1999-05/msg00028.html (8,262 bytes)
2. [AMPS] 3-500Z Grid Current Rating (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 4 May 1999 05:51:24 -0700; This A close enough method: Measure peak cathode potential with an oscilloscope and probe. (typ value is 115v) Calculate the RMS value by multiplying by 0.707. Multiply by the indicated grid current; /archives//html/Amps/1999-05/msg00029.html (8,757 bytes)
3. [AMPS] 3-500Z Grid Current Rating (score: 1): Author: k8cc@ix.netcom.com (David A. Pruett); Date: Tue, 4 May 1999 13:40:18 -0400; Mike, It sounds to me like your loading is too light, resulting in excessive grid current for the amount of output power. I've seen this often happen on amplifiers where the plate tuning C is critica; /archives//html/Amps/1999-05/msg00038.html (8,563 bytes)

Current List: 1 - 3
Page: [1]