Steve wrote:
>
> Hi all, any one have info on these tubes 8295A - PL172 or can point to
> a web address for specs on these tubes.
>
> Thanks Steve VE3TU
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/amps
> Submissions: amps@contesting.com
> Administrative requests: amps-REQUEST@contesting.com
> Problems: owner-amps@contesting.com
Hi,
Here's the info you need gained from
http://hereford.ampr.org/cgi-bin/tube?tube=PL-172
Vy 73
Mark, G1FYC / M5ACG / G0TYA
=========================================================================================
PL-172
Beam Power Pentode
Characteristics
Heater or Filament Voltage . 6 volts
Heater or Filament Current . 7.8 amperes
EIA Base . . . . . . . . . . None
Preferred Substitutes . . . . None
Substitutes. . . . . . . . . None
Capacitance's and Design
Maximum Values
Cin . . . . . . . . . . . . 38 pf
Cout . . . . . . . . . . . . 18 pf
Cgp . . . . . . . . . . . . 0.09 pf
Plate Dissipation . . . . . 1000 watts
Screen Dissipation . . . . . 35 watts
Maximum Plate Voltage . . . 3000 volts
Maximum Screen Voltage . . . 600 volts
Typical Operation as a
Transmitting Tube
Class of Service Vp Vs Vsup Vg Ip Ipmax Is
Ismax Ig Drive Zl Po
CT 2000 400 75 -150 725 - 44
- 22 4.1 - 1110
CT 2500 500 75 -175 960 - 64
- 31 6.8 - 1870
CT 3000 500 75 -175 900 - 56
- 24 4.8 - 2170
AB1 (PP) 2000 500 75 -110 400 1600 20
90 - - 2.65K 1820
AB1 (PP) 2500 500 75 -110 440 1600 20
85 - - 3.5K 2310
AB1 (PP) 3000 500 75 -115 440 1500 10
75 - - 4.6K 2680
AB1 2000 500 - -110 200 800 12
43 - 0 - 1040
AB1 2500 500 - -115 200 800 11
40 - 0 - 1260
AB1 3000 500 - -115 220 800 11
39 - 0 - 1590
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|