-----Original Message-----
From: Roger Rehr [mailto:rrehr@epix.net]
Sent: Sunday, October 25, 1998 4:44 PM
To: 'LOMAX1@prodigy.net'
Subject: RE: [AMPS] Info needed 7213/7214
Frank how is this:
7213
Beam Power Pentode
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Characteristics
Heater or Filament Voltage . 5.5 volts
Heater or Filament Current . 17.3 amperes
EIA Base . . . . . . . . . . None
Prefered Substitutes . . . . None
Substitutes. . . . . . . . . None
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Capacitances and Design Maximum Values
Cin . . . . . . . . . . . . 42 pf
Cout . . . . . . . . . . . . 0.017 pf
Cgp . . . . . . . . . . . . 0.17 pf
Plate Dissipation . . . . . 1500 watts
Screen Dissipation . . . . . 35 watts
Maximum Plate Voltage . . . 2000 volts
Maximum Screen Voltage . . . 1000 volts
Full Frequency . . . . . . . 1215 MHz
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Typical Operation as a Transmitting Tube
Class of Service Vp Vs Vsup Vg Ip Ipmax Is Ismax Ig
Drive Zl Po
CP 1800 500 - -30 750 - 15 - 40
50 - 650
CP 2000 500 - -30 830 - 15 - 40
55 - 800
CTO 2250 500 - -30 900 - 20 - 70
70 - 1050
CTO 2500 500 - -30 1000 - 20 - 70
75 - 1350
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Found it at :
http://hereford.ampr.org/cgi-bin/tube
that has a few tubes.
Hope that helps...
73 from
Roger Rehr W3SZ ex-AA3QK ex-WA3JYM
mailto:rrehr@epix.net FN20ah
http://www.epix.net/~rrehr
2 Merrymount Road, Reading, PA 19609
610.670.8687
> -----Original Message-----
> From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
> Behalf Of frank ayers jr
> Sent: Sunday, October 25, 1998 2:29 PM
> To: amps@contesting.com
> Subject: [AMPS] Info needed 7213/7214
>
>
>
> Greetings
>
> Looking for specs on the 7213/7214.
> Max voltages, fil voltage/current and max frequency.
>
> Thanks
>
> Frank
> W2FCA
>
> --
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>
>
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