| Manufacturer |
Tube |
Type |
Quantity |
URL/Notes |
Equivalent |
Dissipation |
|
|
5651 |
Voltage Reference Tube |
3 |
|
|
5718 |
Triode |
1 |
|
|
5727 |
Gas Thyratron |
1 |
|
| HP |
7233 |
?? |
1 |
|
|
7734 |
?? |
2 |
|
|
0B2 |
Voltage Regulator |
3 |
|
|
10C8 |
Triode/Pentode |
1 |
|
|
10DR7 |
Twin Triode |
1 |
|
|
10DX8 |
Triode/Pentode |
1 |
|
|
10EB8 |
Triode/Pentode |
1 |
|
|
10EW7 |
Twin Triode |
1 |
|
|
10GF7A |
Twin Triode |
1 |
~$6 |
|
|
10LY8 |
?? |
1 |
|
|
10T10 |
Power Tube/Pentode |
1 |
|
|
11BQ11 |
Twin Pentode |
1 |
|
|
11CH11 |
?? |
1 |
|
|
11JE8 |
Triode/Pentode |
2 |
|
|
11LQ8 |
Triode/Pentode |
1 |
|
|
12AF6 |
Pentode |
1 |
12Volts |
|
|
12AV6 |
Twin Diode/Triode |
1 |
|
|
12BA6 |
Pentode |
1 |
|
|
12BE6 |
Pentagrid Converter |
1 |
|
|
12BF11 |
Power Pentode |
1 |
~$6 |
|
|
12BG11 |
?? |
1 |
|
|
12BV11 |
Dual Pentode |
2 |
|
|
12CA5 |
Power Pentode |
2 |
|
5W Plate |
|
|
12CU5 |
Beam Power Pentode |
1 |
|
|
12CX6 |
Pentode |
1 |
|
|
12D4A |
Rectifier |
1 |
|
|
12GN7 |
?? |
1 |
|
|
12HG7 |
Pentode |
2 |
|
|
12MD8 |
Triple Triode |
1 |
|
|
12T10 |
Beam Power/Cutoff Pentode |
3 |
|
|
13DR7 |
Twin Triode |
1 |
|
|
13FM7 |
Twin Triode |
1 |
|
|
13GF7A |
Twin Triode |
1 |
~$6 |
|
|
13J10 |
Pentode/Discriminator |
1 |
|
|
13V10 |
Pentode/Power |
1 |
|
|
13Z10 |
Pentode/Discriminator |
1 |
|
|
14BR11 |
Dual Triode/Pentode |
1 |
|
|
15BD2 |
?? |
1 |
|
|
17AY3 |
?? |
1 |
|
|
17B23 |
Diode |
1 |
|
|
17CT3 |
Rectifier |
1 |
|
|
17CU5 |
Pentode |
1 |
|
7W Plate |
|
|
17D4A |
Rectifier |
1 |
|
|
17DE4 |
Triode |
1 |
|
|
17JZ8 |
Triode/Pentode |
5 |
~$6 |
|
7W Plate |
|
|
17JQ6 |
Diode/Pentode |
1 |
|
|
17LD8 |
Triode/Pentode |
1 |
~$6 |
|
|
17WB3 |
Rectifier |
1 |
|
|
19CG3 |
Rectifier |
1 |
|
|
19T81 |
19T8? |
1 |
|
|
1K3 |
Rectifier |
1 |
|
|
1N5GT |
Pentode |
1 |
|
|
1R5 |
Rectifier |
1 |
|
|
1U4 |
Pentode |
1 |
|
|
1V2 |
Rectifier |
1 |
|
|
22BU3 |
Rectifier |
2 |
|
|
22JR6 |
Beam Power Amplifier |
1 |
~$7 |
|
17W Plate? |
|
|
23Z9 |
Dual Triode/Beam Power Tube |
2 |
|
7W Plate |
|
|
2AV2 |
Rectifier |
1 |
|
|
2BN4 |
Triode |
1 |
|
|
2BU2 |
Rectifier |
1 |
|
|
2D21 |
Gas Thyratron |
1 |
|
|
35W4 |
Rectifier |
1 |
|
|
3A3 |
Rectifier |
1 |
|
|
3AT2B |
Rectifier |
1 |
|
|
3BT6 |
?? |
|
|
3BZ6 |
Pentode |
2 |
|
|
3CA3 |
Rectifier |
1 |
|
|
3CB6 |
Pentode |
1 |
|
|
3CY5 |
Tetrode |
1 |
|
|
3GK5 |
Triode |
3 |
|
|
3HQ5 |
Triode |
1 |
|
|
3JC6A |
Pentode |
1 |
|
|
3KT6 |
Pentode |
1 |
|
|
3P3A |
?? |
1 |
|
|
4B26 |
Pentode |
2 |
|
|
4BC8 |
Twin Triode |
2 |
|
|
4BK5 |
?? |
1 |
|
|
4BL8 |
Triode/Pentode |
1 |
|
|
4BS8 |
Twin Triode |
2 |
|
|
4BZ6 |
Pentode |
1 |
|
|
4CB6 |
Pentode |
1 |
|
|
4CS6 |
Pentagrid Amplifier |
1 |
|
|
4DT6 |
Pentode |
2 |
|
|
4EJ7 |
Pentode |
2 |
|
|
4JC6A |
Pentode |
1 |
|
|
4JD6 |
Pentode |
1 |
|
|
4LJ8 |
Triode/Pentode |
1 |
|
|
50C5 |
Beam Power Amplifier |
6 |
|
7W Plate |
|
|
50L6GT |
Beam Power Amplifier |
1 |
|
10W Plate |
|
|
5AN8 |
Triode/Pentode |
1 |
|
|
5AV8 |
Triode/Pentode |
1 |
|
|
5CQ8 |
Triode/Pentode |
1 |
|
|
5DH8 |
Triode/Pentode |
2 |
|
|
5EA8 |
Triode/Pentode |
1 |
|
|
5EU8 |
Triode/Pentode |
2 |
|
|
5EW6 |
Pentode |
1 |
|
|
5FG7 |
Triode/Pentode |
1 |
|
|
5GH8A |
Triode/Pentode |
2 |
|
|
5J6 |
Twin Triode |
1 |
|
|
5T8 |
Triple Diode/Triode |
1 |
|
|
6AC10 |
Triple Triode |
1 |
Plate R=10k |
|
2W per Plate |
|
|
6AD10 |
Beam Power/Pentode |
1 |
|
|
6AF11 |
Twin Triode/Pentode |
3 |
|
1W,2W Plates |
|
|
6AF3 |
Rectifier |
1 |
|
|
6AF9 |
Dual Pentode |
1 |
|
|
6AG5 |
Pentode |
2 |
|
|
6AL5 |
Twin Diode |
6 |
|
EB91 |
|
|
6AL5W |
Twin Diode |
4 |
|
|
6AL9 |
Triode/Pentode |
1 |
|
|
6AN4 |
Triode |
1 |
|
|
6AN8A |
Triode/Pentode |
2 |
|
|
6AQ5A |
Beam Power Pentode |
1 |
|
EL90 |
12W Plate |
|
|
6AU4 |
Rectifier |
1 |
|
|
6AU6 |
Pentode |
1 |
|
|
6AU6A |
Pentode |
2 |
|
|
6AV6 |
Twin Diode/Triode |
1 |
|
|
6AW8A |
Triode/Pentode |
6 |
|
|
6AY11 |
Twin Diode/Triode |
1 |
|
|
6AY3 |
Rectifier |
1 |
|
|
6B10 |
Twin Triode/Diode |
2 |
|
|
6B11 |
Twin Pentode |
1 |
|
|
6BA11 |
Triode/Pentode |
7 |
|
|
6BA6 |
Pentode |
1 |
|
|
6BC5 |
Pentode |
|
|
6BD11 |
Triode/Pentode |
1 |
|
|
6BE6 |
Pentagrid Converter |
1 |
|
|
6BJ6 |
Pentode |
1 |
|
|
6BJ8 |
Twin Diode/Triode |
2 |
|
|
6BL8 |
Triode/Pentode |
3 |
|
ECF80 |
|
|
6BN8 |
Twin Diode/Triode |
3 |
|
|
6BQ5 |
Beam Power Amplifier |
2 |
~15$ |
EL84 |
12W Plate |
|
|
6BS3A |
Rectifier |
2 |
|
|
6BU8 |
Dual Pentode |
3 |
|
|
6BV11 |
Dual Pentode |
4 |
|
|
6BW11 |
Twin Pentode |
1 |
|
|
6BY6 |
Pentagrid Amplifier |
1 |
|
|
6BY8 |
Diode/Pentode |
1 |
|
|
6BZ6 |
Pentode |
4 |
|
|
6CB6 |
Pentode |
1 |
|
|
6CB6A |
Pentode |
2 |
|
|
6CF6 |
Pentode |
1 |
|
|
6CG8 |
Triode/Pentode |
1 |
|
|
6CG8A |
Triode/Pentode |
2 |
|
|
6CJ3 |
Rectifier |
3 |
|
|
6CL8 |
Triode/Tetrode |
1 |
|
2.5W |
|
|
6CQ3 |
?? |
1 |
|
|
6CS6 |
Pentagrid |
1 |
|
|
6CW4 |
Triode |
1 |
|
|
6CX8 |
Triode/Pentode |
1 |
|
|
6CY5 |
Tetrode |
1 |
|
|
6DB5 |
Beam Power Amplifier |
1 |
|
|
6DE6 |
Pentode |
1 |
|
|
6DK6 |
Pentode |
6 |
|
|
6DT6 |
Pentode |
1 |
|
|
6DW4 |
Rectifier |
1 |
|
|
6DW4B |
Rectifier |
2 |
|
|
6DX8 |
Triode/Pentode |
1 |
|
|
6EA8 |
Triode/Pentode |
4 |
|
|
6EH7 |
Pentode |
2 |
|
EF183 |
|
|
6EJ7 |
Pentode |
8 |
|
EF184 |
|
|
6EW6 |
Pentode |
12 |
|
|
6FM8 |
Twin Diode/Triode |
1 |
|
|
6FQ7 |
Twin Triode |
1 |
|
|
6FV6 |
Tetrode |
2 |
|
|
6FY7 |
Dual Triode |
2 |
Plate R=920 |
|
1W and 7W |
|
|
6GF7A |
Twin Triode |
9 |
|
|
6GH8 |
Triode/Pentode |
1 |
|
|
6GH8A |
Triode/Pentode |
3 |
|
|
6GJ7 |
Triode/Pentode |
1 |
|
|
6GK5 |
Triode |
1 |
|
|
6GM6 |
Pentode |
7 |
|
|
6GU7 |
Twin Triode |
1 |
|
3W per Plate |
|
|
6GX6 |
Pentode |
1 |
|
|
6GX7 |
Triode/Pentode |
1 |
|
|
6GY6 |
Pentode |
11 |
|
6GX6 |
|
|
6HB7 |
Triode/Pentode |
1 |
|
|
6HD7 |
Triode/Pentode |
2 |
|
|
6HE5 |
Beam Pentode |
5 |
|
|
6HL8 |
Triode/Pentode |
1 |
|
|
6HM5 |
Triode |
1 |
|
|
6HQ5 |
Triode |
3 |
|
|
6HS5 |
Beam Triode |
1 |
|
30W @ 5kV! |
|
|
6HS8 |
Twin Pentode |
2 |
|
|
6HZ6 |
Pentode |
5 |
|
|
6J10 |
Pentode/Discriminator |
1 |
|
|
6J6A |
Twin Triode |
1 |
Common Cathode |
|
|
6JC6 |
Pentode |
6 |
|
|
6JC6A |
Pentode |
6 |
|
|
6JC8 |
Triode/Pentode |
1 |
|
|
6JC8A |
?? |
1 |
|
|
6JD6 |
Pentode |
1 |
|
|
6JH6 |
Pentode |
8 |
|
|
6JH8 |
Beam Deflection Tube |
2 |
|
|
6JT8 |
Triode/Pentode |
1 |
|
|
6JU8 |
Quad Diode |
2 |
|
|
6JU8A |
Quad Diode |
1 |
|
|
6JW6 |
Triode/Pentode |
1 |
|
ECF802 |
|
|
6JZ8 |
Triode/Pentode |
1 |
|
|
6KA8 |
Triode/Pentode |
3 |
|
|
6KE8 |
Triode/Pentode |
1 |
|
|
6KT6 |
Pentode |
1 |
|
|
6KT8 |
Triode/Pentode |
4 |
|
|
6KZ8 |
Triode/Pentode |
1 |
|
|
6LE8 |
Twin Pentode |
2 |
|
|
6LF8 |
Triode/Pentode |
3 |
|
|
6LJ8 |
Triode/Pentode |
1 |
|
|
6LY8 |
Triode/Pentode |
1 |
|
|
6M11 |
Twin Triode/Pentode |
1 |
|
|
6MB8 |
Triode/Pentode |
1 |
|
|
6MD8 |
Triple Triode |
1 |
|
|
6ME8 |
Beam Deflection Tube |
2 |
|
|
6MJ8 |
Triple Triode |
2 |
Plate R=5.6k |
|
3W per plate |
|
|
6MN8 |
Triple Triode |
1 |
Plate R=10k |
|
3W per plate |
|
|
6MQ8 |
Triode/Pentode |
1 |
|
|
6T10 |
Beam Power/Cutoff Pentode |
3 |
|
|
6U10 |
Triple Triode |
3 |
|
|
6U8A |
Triode/Pentode |
1 |
|
|
6X8 |
Triode/Pentode |
1 |
|
|
6X9 |
Triode/Pentode |
2 |
|
ECF200 |
|
|
6Z10 |
Power Pentode |
7 |
|
|
7KY6 |
Pentode |
1 |
|
|
8A8 |
Triode/Pentode |
1 |
|
|
8AR11 |
Twin Pentode |
1 |
|
|
8AW8A |
Triode/Pentode |
1 |
|
|
8BM11 |
Dual Pentode |
1 |
|
|
8CW5 |
Power Pentode |
1 |
|
XL86 |
12W Plate |
|
|
8EM5 |
Beam Power Pentode |
1 |
|
|
8JV8 |
Triode/Pentode |
2 |
|
|
9CL8 |
Triode/Pentode |
4 |
|
|
9U8 |
?? |
1 |
|
|
FPBA |
?? |
1 |
|
|
|
422 |
|
|
|
http://home.achilles.net/~cmacd/tubes.html |
|
Suffix Letters |
|
Meaning |
|
A |
|
More advanced
Version of Tube |
|
A |
|
May also mean a
different Filament voltage, For example a 58A is a 6.3V version of the 2.5
Volt 58 |
|
A |
|
In connection
with a W may indicate more advanced testing, or burn-in, or other Quality
Controls beyond the normal for a Military Tube. |
|
B |
|
More advanced
Version of Tube than A |
|
C |
|
More advanced
Version of Tube than B |
|
E |
|
Export Version |
|
G |
|
Glass (as
opposed to metal) often implies a ST style envelope. |
|
GT |
|
Glass Tubular -
Not an ST style - often a T9 envelope. May have slightly lower ratings than a
G |
|
GT/G |
|
Glass Tubular
with the same ratings at the G version |
|
LM |
|
Loctal-Metal a
metal equivalent of a Loctal tube. These were mainly made during the time
when Sylvania and Philco were attempting to gain acceptance for the Loctal
design at the same time as GE and RCA were promoting the metal design. |
|
M |
|
Rogers tube with
an Octal Base, and a spray shield - Characteristics otherwise simalar, for
example a 6A7M is an Octal version of a 6A7, with a Conductive spray coating |
|
M-R |
|
Maintenance and
Repair - Tubes produced for civilian use during the Second World War. Almost
all tube production was restricted to military needs, but some civilian
production was approved strictly to keep civilian sets running. The MR
marking on these tubes was to ensure that they were not used for new radio
production. |
|
S |
|
Spray Shield -
often a Rogers or Majestic Brand tube, with a coating on the envelope to
eliminate the need for an external tube shield |
|
X |
|
Ceramic base.
Early tube bases made of Bakelite sometimes cased electrical losses in high
frequency, high power or airborne applications. Ceramic has a better
dielectric constant and so ceramic was used for some tubes. This may also be
a Mica Filled Plastic base in some cases |
|
Y |
|
Low Loss Base.
This is often Mica filed bakelite or some other sort of plastic. Ceramic does
not work well for Octal tubes as the keyway can be damaged easily. The base
on a Y tube is often a mottled brown or red in appearance. |
|
W |
|
War? Tubes made
to Military Requirements. May be more rugged, higher ratings, have a low loss
base, or other variations. Civilian version may be a numbered industrial
type. For example, a 6AQ5W is also sometimes known outside the Military as a
6005. Some W types draw slightly more heater power than the related civilan
version |
|
|
|
|
|
|
|
|
|