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Converter, Modulator, and Control, Tubes. |
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Listed here are tubes that are intended for or can be used in mixer/modulator service. Except for filament and heater ratings |
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only a functional description has been given. Except for the car radio tubes plate voltages will for the most part be in the 150 volt range. |
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Heater (H), Filament (F) |
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Type |
Function or Configuration |
H/F |
V |
A |
Other heater voltages |
Notes and Comments |
Base |
|
1A7GT |
Heptode Converter |
F |
1.4 |
50 mA |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
Octal |
|
1L6 |
Heptode Converter |
F |
1.4 |
50 mA |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
7 pin mini |
|
1LA6 |
Heptode Converter |
F |
1.4 |
50 mA |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
Locktal |
|
1R5 |
Heptode Converter |
F |
1.4 |
50 mA |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
7 pin mini |
|
6A7 |
Heptode Converter |
H |
6.3 |
0.3 |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
7 pin |
|
6A8/G/GT |
Heptode Converter |
H |
6.3 |
0.3 |
12 |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
Octal |
|
6AR8 |
Beam Deflection Tube |
H |
6.3 |
0.3 |
- |
This tube can be used as a balanced modulator for suppressed carrier communications. |
9 pin mini |
|
6AT8/A |
Triode Pentode |
H |
6.3 |
0.45 |
5 |
Triode and pentode have common cathode. Used as oscillator and mixer in TV tuners. |
9 pin mini |
|
6BA7 |
Heptode Converter |
H |
6.3 |
0.3 |
- |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. |
9 pin mini |
|
6BE6 |
Heptode Converter |
H |
6.3 |
0.3 |
3, 12 |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode |
7 pin mini |
|
6BN6 |
Gated Beam Detector |
H |
6.3 |
0.3 |
3, 4, 12 |
The schematic symbol looks identical to a conventional pentode but grid 3 has a much greater effect on the electron stream than in a normal pentode. This is an FM detector and was developed in an attempt to get around the patents of Edwin Armstrong. |
7 pin mini |
|
6BU8 |
Duo Control Duo Pentode |
H |
6.3 |
0.3 |
3, 4 |
This tube has two plates and two grids 3 but grids 2,1, and the cathode are in common. It is used as sync separator and keyed AGC in TV sets. |
9 pin mini |
|
6CG8 |
VHF Triode Pentode |
H |
6.3 |
0.45 |
5 |
Triode and pentode have common cathode. Used as oscillator and mixer in TV tuners. |
9 pin mini |
|
6CS6 |
Duo Control Heptode |
H |
6.3 |
0.3 |
3, 12 |
This is a sync/clipper tube for TV sets. Grid 3 has a sharp cutoff characteristic as opposed to the remote cutoff of tubes such as the 6BE6. |
7 pin mini |
|
6DT6 |
Gated Beam Detector |
H |
6.3 |
0.3 |
3, 4, 12 |
The schematic symbol looks identical to a conventional pentode but grid 3 has a much greater effect on the electron stream than in a normal pentode. This is an FM detector and was developed in an attempt to get around the patents of Edwin Armstrong. |
7 pin mini |
|
6EZ8 |
VHF RF Amplifier Mixer Oscillator |
H |
6.3 |
0.3 |
- |
This tube consists of 3 triodes in a 9 pin mini package. |
9 pin mini |
|
6FG7 |
VHF Triode Pentode |
H |
6.3 |
0.45 |
5 |
Triode and pentode have common cathode. Used as oscillator and mixer in TV tuners. |
9 pin mini |
|
6GS8 |
Duo Control Duo Pentode |
H |
6.3 |
0.3 |
3, 4 |
This tube has two plates and two grids 3 but grids 2,1, and the cathode are in common. It is used as sync separator and keyed AGC in TV sets. |
9 pin mini |
|
6GX6 |
FM Detector |
H |
6.3 |
0.45 |
5 |
The schematic symbol looks identical to a conventional pentode but grid 3 has a much greater effect on the electron stream than in a normal pentode. This is an FM detector and was developed in an attempt to get around the patents of Edwin Armstrong. |
7 pin mini |
|
6GY6 |
Gated AGC Amplifier |
H |
6.3 |
0.45 |
- |
The schematic symbol looks identical to a conventional pentode but grid 3 has a much greater effect on the electron stream than in a normal pentode. |
7 pin mini |
|
6JK8 |
FM Oscillator Mixer |
H |
6.3 |
0.4 |
8, 17 |
This tube consists of two dissimilar triodes. |
9 pin mini |
|
6L7/G |
Heptode Converter |
H |
6.3 |
0.3 |
- |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode |
Octal |
|
6SA7/GT |
Heptode Converter |
H |
6.3 |
0.3 |
12 |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. |
Octal |
|
6X8/A |
HF Triode Pentode |
H |
6.3 |
0.45 |
5 |
Triode and pentode have common cathode. Used as oscillator and mixer in TV tuners. |
9 pin mini |
|
7A8 |
Octode Converter |
H |
6.3 |
0.15 |
- |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. Octode is what the tube manual calls it. |
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7B8 |
Heptode Converter |
H |
6.3 |
0.3 |
14 |
This is a 5 grid tube with grids 3 and 5 tied together and brought out to a single pin. |
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7Q7 |
Heptode Converter |
H |
6.3 |
0.3 |
14 |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. |
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12AD6 |
Heptode Converter |
H |
12.6 |
0.15 |
- |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode. Low voltage tube designed for vibrator less car radios. |
7 pin mini |
|
12EG6 |
Dual Control Heptode |
H |
12.6 |
0.19 |
- |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode. Low voltage tube designed for vibrator less car radios. . |
7 pin mini |
|
The application note indicates that both grids 1 and 3 have remote cutoff characteristics for application of AGC to both grids |
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12FQ8 |
Twin Double Plate Triode |
H |
12.6 |
0.15 |
- |
Two triodes each with two plates. Could be used as a balanced modulator. |
9 pin mini |
|
12FX8 |
Triode Heptode |
H |
12.6 |
0.3 |
- |
Heptode section is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode. Triode section has mu of 10 and separate cathode. Low voltage tube designed for vibrator less car radios. |
9 pin mini |
|
12GA6 |
Heptode Converter |
H |
12.6 |
0.15 |
- |
This is a 5 grid tube with grids 2 and 4 tied together and brought out to a single pin. Grid 5 is tied to the cathode. Low voltage tube designed for vibrator less car radios. |
7 pin mini |
|
7360 |
Beam Deflection Tube |
H |
6.3 |
0.35 |
- |
This tube is a higher quality version of the 6AR8. It can be used as a balanced modulator for suppressed carrier communications. |
9 pin mini |