3 Mar
2000
3 Mar
'00
5:14 a.m.
Anyone have specs on 5899 or 5639 (they happen to be
sylvainia)? None of
my books list them, as they are all RCA. If not step one will be
Allison,
5899 (Generic class A amplifier tube)
Semi Remote Cutoff RF Pentode.
6.3V/0.15 filament voltage/amp, 165V maximum plate voltage,
155 maximum screen voltage, 4,2 microfarad capacitance on input,
3.4 microfarads on output, 0.015 microfarads on gridplate (max).
5639 (Used in old TV's)
Video Pentode
6.3V/0.45 filament voltage/amp, 150 max. plate voltage
2.2 microfarads on input, 3.0 on output, 1.7 on gridplate (max).
If you need more information, I can fax you a copy of both pages
describing the tubes.
Ed
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