Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
PM12 | S21 | S207 | 215SG | SG215 |
PM12A | S24 | S215 | 220SG | S215A |
PM12M | VS24 | S208 | 220VSG | S215VM |
- | H2 | WD2 | 210RC | H210 |
PM1HL | H210 | HD2 | 210HF | HL2 |
PM2DX | HL210 | SD2 | 210Det | HL2 |
- | L210 | TD2 | 210LF | L2 |
PM2A | P215 | ZD2 | 215P | P22A |
PM2A | LP2 | YD2 | 220P | P220 |
- | P2 | UD2N | 230XP | P240 |
PM202 | - | E235 | - | - |
PM22A | PT2 | P225 | 220PT | Pen220A |
PM2B | B21 | E220B | 240B | 220B |
Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
PM14 | S410 | S409 | 41SG | - |
PM3A | H410 | W420 | 410RC | - |
PM3 | - | H412 | 410HF | - |
PM4DX | HL410 | A430 | 410LF | - |
PM4 | P410 | E414 | 410P | - |
PM254 | - | E425 | 425XP | P425 |
PM24A | PT425 | P425 | - | - |
Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
AC044 | PX4 | K435/10 | 4XP | PP3/250 |
D024 | PX25 | K480 | - | PP5/400 |
DO60 | DA60 | K450/50 | - | - |
PM24M | - | P435 | PT41B | - |
PM24B | PT25 | P440 | - | - |
Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
- | - | S415N | - | - |
- | MS4B | S410N | MSG/LA | AC/SG |
VP4 | VMP4 | S434N | MVSPen | - |
SP4 | MSP4 | S435N | MSPen | - |
904V | MH41 | A440N | 41MH | AC2/HL |
104V | ML4 | E430N | - | ACP |
- | - | B430N | - | - |
Pen/4V | PT4 | P440N | MP/Pen | AC/Pen |
Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
SP20 | - | S2035N | - | - |
VP20 | - | S2034N | - | - |
HL20 | - | A2040N | - | - |
- | - | E2020N | - | - |
- | - | B2030N | - | - |
- | - | P2020N | - | - |
Mullard | Marconi-Osram. | Triotron. | Cossor. | Mazda. |
DW2 | U10 | G470 | 506BU | UU60/250 |
DW3 or 4 | U14 | G4120 | 460BU | UU120/500 |
- | - | G4100 | - | - |
- | - | G4150 | - | - |