| Type |
Max Plate Dissipation, kW |
Max Plate Voltage, kV |
Frequency for Full Ratings, MHz |
Heater Volts |
Heater Amps |
Typical Applications |
Typical Operation |
Special Features |
Cooling Method |
| class
of service |
plate
volts, kV |
plate
amps |
screen
volts |
|
output
power, kW |
| GK-12A triode |
25 |
11 |
30 |
6 |
275~ |
RF
heating |
C |
10 |
6.9 |
|
|
60 |
magnetic
beam type, Class C |
water |
| GU-88A triode |
400 |
12 |
30 |
25 |
680~ |
RF
heating, AM transmitters |
C |
11 |
37 |
|
|
330 |
Class
B or C amplifier |
water |
| GU-88P triode |
250 |
12 |
10 |
25 |
680~ |
RF
heating, AM transmitters |
C |
11 |
37 |
|
|
330 |
Class
B or C amplifier |
vapor |
| GU-96B triode |
4 |
7 |
90 |
6 |
67.5~ |
RF
heating, AM transmitters |
C |
7 |
1.74 |
|
|
8 |
Class
C |
forced
air |
| GU-100A triode |
6 |
8 |
150 |
5 |
72~ |
RF
heating, AM transmitters |
C |
7 |
1.72 |
|
|
8 |
Class
C |
water |
| GU-100B triode |
6 |
8 |
150 |
5 |
72~ |
RF
heating, AM transmitters |
C |
7 |
1.7 |
|
|
8 |
Class
C |
forced
air |
| GU-101A tetrode |
250 |
14 |
200 |
15 |
665~ |
scientific |
B |
13 |
35.5 |
900 |
|
250 |
Class
C |
water |
| GU-35B tetrode |
3.5 |
5 |
250 |
6.3 |
34~ |
VHF
television, FM |
AB1 |
3.2 |
1.4 |
800 |
|
3 |
|
forced
air |
| GU-36B-1 tetrode |
15 |
7 |
250 |
8 |
120~ |
VHF-TV,
SSB |
AB1 |
6.2 |
3.5 |
900 |
|
16 |
IMD
of -30 dB |
forced
air |
| GU-40B tetrode |
2 |
5 |
250 |
6.3 |
33~ |
VHF-TV,
FM |
AB2 |
3.2 |
0.76 |
800 |
|
1.5 |
substitutes
for type RE1.5XL |
forced
air |
| GU-61A tetrode |
30 |
10 |
70 |
8.3 |
133~ |
AM,
SSB |
C |
8 |
6 |
1250 |
|
45 |
IMD
of -36 dB |
water |
| GU-61B tetrode |
25 |
10 |
70 |
8.3 |
133~ |
AM,
SSB |
C |
8 |
6 |
1250 |
|
45 |
IMD
of -36 dB |
forced
air |
| GU-61P tetrode |
30 |
10 |
70 |
8.3 |
133~ |
AM,
SSB |
C |
8 |
6 |
1250 |
|
45 |
IMD
of -36 dB |
vapor |
| GU-71B pentode |
1.5 |
3.5 |
75 |
12.6 |
7.15* |
AM,
SSB linear service |
AB1 |
3 |
0.83 |
350 |
|
1.5 |
IMD
of -39 dB |
forced
air |
| GU-73B tetrode |
2.5 |
3.2 |
250 |
27 |
4.65* |
AM,
SSB linear service |
AB1 |
3 |
1.45 |
300 |
|
2.5 |
stationary
or mobile, IMD -30 dB |
forced
air |
| GU-74B tetrode |
0.6 |
2.2 |
250 |
12.6 |
3.6* |
AM,
SSB linear service |
AB1 |
2 |
0.45 |
300 |
|
0.55 |
stationary
or mobile, IMD -30 dB |
forced
air |
| GU-76B tetrode |
30 |
11 |
75 |
11 |
170~ |
AM,
SSB linear service |
AB1 |
10 |
4.8 |
1300 |
|
30 |
IMD
of -39db (third order) |
forced
air |
| GU-78B tetrode |
2.5 |
3.3 |
250 |
27 |
3.7* |
AM,
SSB linear service |
AB1 |
3.2 |
1.3 |
350 |
|
2.5 |
stationary
or mobile, IMD -35 dB |
forced
air |
| GU-92A tetrode |
25 |
8 |
250 |
9 |
135~ |
scientific |
C |
7.5 |
3.2 |
1000 |
|
15 |
|
water |
| GU-92B tetrode |
25 |
8 |
250 |
9 |
135~ |
VHF-TV,
scientific |
AB2 |
7.8 |
4.8 |
1150 |
|
25 |
|
forced
air |
| GU-93B tetrode |
4 |
3.8 |
250 |
12.6 |
11* |
VHF-TV |
AB2 |
3.5 |
1.64 |
400 |
|
4.5 |
concentric
terminals |
forced
air |
| GU-94A tetrode |
160 |
15 |
30 |
18 |
385~ |
AM/SSB
linear service |
AB1 |
13 |
12.5 |
1500 |
|
100 |
IMD
of -42dB (third order) |
water |
| GU-104A tetrode |
250 |
15 |
30 |
24 |
710~ |
AM/SSB
linear service |
AB1 |
14 |
28 |
1400 |
|
250 |
IMD
-35dB, low capacitance |
water |
| GU-111B tetrode |
5 |
5 |
240 |
6.5 |
93~ |
VHF-TV |
AB2 |
4 |
1.8 |
900 |
|
5 |
sub
for RE-5XN |
forced
air |
| GS-17B tetrode |
10 |
5.5 |
600 |
3.4 |
160~ |
RF
general service, UHF-TV |
B |
5 |
1.7 |
800 |
|
5 |
|
forced
air |
| GS-36B tetrode |
0.4 |
2.5 |
400 |
6.3 |
3.2* |
RF
general service, UHF-TV |
AB1 |
2 |
0.23 |
325 |
|
0.25 |
IMD
of -30dB |
forced
air |
| GS-44B-1 tetrode |
2.5 |
2.6 |
500 |
12.6 |
6.8* |
RF
gen serv, FM, VHF-TV |
AB |
2.6 |
1.35 |
400 |
|
2.5 |
IMD
of -35 dB |
forced
air |
| GS-44B-2 tetrode |
2.5 |
2.6 |
860 |
12.6 |
6.8* |
RF
general service, UHF-TV |
AB |
2.4 |
1.6 |
400 |
|
2.5 |
IMD
of -35 dB |
forced
air |
| GS-45B tetrode |
6 |
4 |
800 |
5 |
85~ |
RF
general service, UHF-TV |
AB |
3.7 |
1.55 |
800 |
|
2.5 |
|
forced
air |
| GU-70B tetrode |
0.35 |
2.5 |
400 |
6 |
3.3* |
RF
general service |
B |
1.9 |
0.265 |
400 |
|
0.125 |
stationary
or mobile use |
forced
air |
| GU-108B tetrode |
0.25 |
2 |
400 |
6 |
2.6* |
RF
general service |
B |
1.5 |
0.25 |
350 |
|
0.2 |
stationary
or mobile use |
forced
air |
| GU-137B tetrode |
8 |
5 |
300 |
10 |
90~ |
VHF-TV |
AB2 |
4 |
2.85 |
850 |
|
8 |
sub
for RE-8XM |
forced
air |
| |
|
|
Input
Capacitance, pF |
|
|
Typical
Applications |
Typical
Operation |
Plate
Volts, kV |
Plate
Current, Max, amps |
Pulse
Duty Factor, Maximum |
Grid
+ Drive Volts |
Grid
Current When On, amps |
|
|
| GMI-42B triode |
0.5 |
30 |
<130 |
26 |
3.4* |
pulse-power
modulator |
switch |
2.5 |
30 |
0.002 |
1350 |
<4.5 |
|
forced
air |
| GMI-46B triode |
1 |
30 |
<210 |
26 |
8* |
pulse-power
modulator |
switch |
4 |
50 |
0.002 |
1200 |
<12.5 |
|
forced
air |
| GM-5B triode |
0.3 |
2.2 |
<15 |
6.3 |
2.65* |
HV
regulator |
series
reg. |
2.2 |
0.5 |
|
|
|
stationary
or mobile service |
forced
air |
| GP-5 beam triode |
0.0375 |
30 |
4 |
6.3 |
0.21* |
HV
shunt reg, defl driver |
shunt
reg |
30 |
0.002 |
|
|
|
glass
envelope |
convection |
|
|