This is a list of European Mullard–Philips vacuum tubes and their American equivalents. Most post-war European thermionic valve (vacuum tube) manufacturers have used the Mullard–Philips tube designation naming scheme.
Special quality variants may have the letter "S" appended, or the device description letters may be swapped with the numerals (e.g. an E82CC is a special quality version of an ECC82)
Note: Typecode explained above. The part behind a slash ("/") is the RMA/RETMA/EIA equivalent.
A - 4 V heater
AB AB1 – Dual diode AB2 – Dual diode
ABC ABC1 – Dual diode - triode, CBC1 with a different heater, 1930s European radios.
ABL ABL1 – Dual diode - power pentode, 1930s European radios.
AC AC2 – Triode for use as AF amplifier or as oscillator together with an AH1 mixer; side-contact 8 base, EC2 with a different heater AC50, 4686 – 3 mAavg, 300 mApeak, Argon-filled triode thyratron, side-contact 8 base with grid on top cap, for relaxation oscillators up to 50 kHz AC100 – Triode for use as AF amplifier or as oscillator together with an AH100 mixer; AC2 with a P5A German PTT 5-pin base AC101 – Triode for use as AF amplifier or as oscillator together with an AH100 mixer; AC2 with a European 5-pin base AC701 – Subminiature AF triode, 4-pin all-glass wire-ended with grid on top wire, for condenser microphone preamplifiers AC761 – Subminiature AF triode, 4-pin all-glass wire-ended with grid on top wire, for microphone preamplifiers
ACH ACH1 – Triode-Hexode mixer
A D
AD1 – 4.2 W Power triode AD100 – 1.7 W Power triode, P7A German PTT 7-pin base AD101 – 1.7 W Power triode, O5A European 5-pin base AD102 – 5.5 W Power triode
AF AF2 – Remote-cutoff pentode – Remote-cutoff pentode. Identical to except for heater ratings – Sharp-cutoff pentode AF100 – Wide band, sharp-cutoff pentode
AH AH1 – Remote-cutoff Hexode for RF gain control or modulator, CH1 with a different heater AH100 – Remote-cutoff Hexode for RF gain control or modulator
AK AK1 – Octode pentagrid converter, 1930s European radios. European 7-pin base. AK2 – Octode pentagrid converter, CK1 with a different heater, 1930s European radios, side-contact 8 base, similar to EK2.
AL AL1 – AF Power pentode, 1930s European radios AL2 – AF Power pentode, 1930s European radios, side-contact 8 base. AL3 – AF Power pentode, 1930s European radios AL4 – AF Power pentode, 1930s European radios AL5 – Identical to EL5 except for heater ratings AL860 – RF/AF Power pentode, noval base
AM AM1 – Top-view, "Magic Cross"-type tuning indicator, EM1 with a different heater AM2, 4677 – Top-view, "Magic Eye"-type tuning indicator, identical to CM2 and EM2 except for heater ratings
AN AN1 – 300 mAavg, 2 Apeak, 15 Asurge, Gas-filled triode thyratron with negative control characteristic. O5A European 5-pin base, for industrial control applications
AX AX1, 4652 – 500 VPIV, 125 mA Gas-filled, full-wave rectifier, European 4-pin base AX50 – 500 VPIV, 275 mA Gas-filled, full-wave rectifier, European 4-pin base
AZ AZ1 – 60 mA Full-wave power rectifier, side-contact 8 base AZ2 – 160 mA Full-wave power rectifier, side-contact 8 base AZ3 – 120 mA Full-wave power rectifier, side-contact 8 base AZ4 – 200 mA Full-wave power rectifier, side-contact 8 base AZ11 – Full-wave power rectifier, AZ1 with Y8A 8-pin steel tube base AZ12 – Full-wave power rectifier, AZ4 with Y8A 8-pin steel tube base AZ21 – 120 mA Full-wave power rectifier, Loctal base AZ31 – Full-wave power rectifier, AZ1 with 5-pin Octal base AZ32 – Full-wave power rectifier, AZ2 with 5-pin Octal base AZ33 – 120 mA Full-wave power rectifier, 4-pin Octal base AZ41 – 70 mA Full-wave power rectifier, Rimlock base AZ50 – 300 mA Full-wave power rectifier, European 4-pin base
B - 180 mA heater
BB BB1 – Shielded common-cathode dual diode, CB2 with a 16 V heater and a European 5-pin base with one anode on top cap
BCH BCH1 – Triode-hexode mixer, German Hexode base, hexode control grid on top cap, ACH1 with a 24 V heater
BL BL2 – Power pentode, CL2 with a 30 V heater and a European 5-pin base with the control grid on top cap
C - 200 mA heater Note: Many "C" tubes had 13V/200mA heaters, so apart from 1930s European AC/DC radios, these were also used in 12-Volts car radios
CB CB1 – Dual diode, 5-pin side-contact base, 13 V heater, 1930s European radios. CB2 – Dual diode, 5-pin side-contact base, 13 V heater, 1930s European radios.
CBC CBC1 – Dual diode and triode, ABC1 with a 13 V heater, 1930s European radios.
CBL CBL1 – Dual diode and power pentode, 44 V heater, 1930s European radios. CBL6 – Dual diode and power pentode, 1930s European radios. CBL31 – Dual diode and power pentode, CBL1 with an Octal base, 1930s European radios.
CC CC2 – Triode, AC2 with a 13 V heater, 1930s European radios.
CCH CCH1 – Triode-hexode mixer, 1930s European radios. CCH2 – Triode-hexode mixer, 1930s European radios. CCH35 – Triode-hexode mixer, ECH3 with a different heater and base, 1930s European radios.
CF CF1 – Sharp-cutoff pentode, 13 V heater, 1930s European radios. CF2 – Remote-cutoff pentode, 13 V heater, 1930s European radios. – Remote-cutoff pentode, AF3 with a 13 V heater, 1930s European radios. CF7 – Sharp-cutoff pentode, AF7 with a 13 V heater, 1930s European radios. CF50 – Microphone preamplifier sharp-cutoff pentode CF51 – Microphone preamplifier sharp-cutoff pentode
CH CH1 – Hexode mixer, AH1 with a 13 V heater, 1930s European radios.
CK CK1 – Octode pentagrid converter, AK2 with a 13 V heater, 1930s European radios. CK3 – Octode pentagrid converter, EK3 with a different heater, 1930s European radios.
CL CL1 – Power pentode, 1930s European radios. CL2 – Power pentode, BL2 with a 24 V heater, 1930s European radios. CL4 – AF power pentode, 33 V heater, 1930s European radios. CL6 – Power pentode, 1930s European radios. CL33 – AF power pentode, CL4 with an octal base, 1930s European radios.
CM CM2 – Top-view, "Magic Eye"-type tuning indicator; has a 6.3 V/200 mA heater and was therefore marketed as C/EM2; identical to AM2 except for heater ratings
CY CY1 – 250 V, 80 mA Half wave rectifier, side-contact 8 base, 1930s European radios. CY2 – Separate-cathode dualThis tube's designation is inconsistent with the scheme 250 V, 60 mA rectifier, side-contact 8 base, for use as half wave rectifier or as voltage doubler. 1930s European radios. CY31 – CY1 with Octal base, 1930s European radios. CY32 – CY2 with Octal base, 1930s European radios.
D - 1.4 V filament/heater Note: D-type tubes except some rectifiers are directly heated.
DA DA50 – Subminiature diode, 3-pin all-glass wire-ended DA90 – Indirectly heated AM detector diode, miniature 7-pin base DA101 – Diode, miniature 7-pin base
DAC DAC21 – AM detector diode and AF triode DAC22 – AM detector diode and AF triode DAC25 – AM detector diode and AF triode DAC31 – AM detector diode and AF triode DAC32 – AM detector diode and AF triode DAC41w – AM detector diode and AF triode
DAF DAF11 – AM detector diode and AF pentode, wide-range heater DAF26 – AM detector diode and AF pentode DAF40 – AM detector diode and AF pentode DAF41 – AM detector diode and AF pentode DAF70 – Subminiature AM detector diode and AF pentode, all-glass wire-ended DAF91/1S5 – AM detector diode and AF pentode, miniature 7-pin base DAF92 – AM detector diode and AF pentode, miniature 7-pin base DAF96/1AH5 – AM detector diode and AF pentode, miniature 7-pin base DAF191 – AM detector diode and AF pentode, miniature 7-pin base DAF961 – AM detector diode and AF pentode, miniature 7-pin base
DAH DAH50 – Low voltage diode-heptode with a space charge grid
DBC DBC21 – Dual diode and Triode
DC – AF driver triode for DDD11, wide-range heater – AF driver triode for DDD25 DC41w – Driver triode DC70/6375 – Subminiature UHF triode for walkie-talkies, all-glass wire-ended DC80/1E3 – Triode, oscillator/mixer/amplifier DC90 – Triode, FM receiver oscillator/mixer/amplifier, miniature 7-pin base DC96 – Triode, FM receiver oscillator/mixer/amplifier, miniature 7-pin base DC760 – Subminiature electrometer inverted triode for probes, all-glass wire-ended DC761 – Subminiature UHF triode, all-glass wire-ended DC762 – Subminiature electrometer inverted triode for probes, 100 fA grid current, all-glass wire-ended —Special quality: D1C (957) – Acorn UHF triode D2C (958) – Acorn UHF triode
DCC DCC90 – Dual triode, RF amplifier or oscillator, miniature 7-pin base
DCF DCF60/1V6 – Triode and pentode, oscillator/mixer, all-glass 7-pin wire-ended
DCH DCH11 – Remote-cutoff triode/hexode mixer, wide-range heater DCH21 – Remote-cutoff triode/hexode mixer DCH25 – Remote-cutoff triode/hexode mixer DCH41w – Remote-cutoff triode/hexode mixer
DD DD960 – VHF power triode, miniature 7-pin base
DDD – Dual AF power triode, wide-range heater – preferred driver is DC11 – Dual AF power triode – preferred driver is DC25 DDD41w – Dual power triode
DF DF11 – Remote-cutoff RF/IF pentode, wide-range heater DF21 – Sharp-cutoff RF/IF/AF pentode DF22 – Remote-cutoff RF/IF pentode DF25 – Remote-cutoff RF/IF pentode DF26 – Sharp-cutoff RF/IF pentode DF33 – Remote-cutoff RF/IF pentode DF41w – Remote-cutoff RF/IF pentode DF60/5678 – Subminiature sharp-cutoff RF/IF/AF pentode, all-glass wire-ended DF61 – Subminiature sharp-cutoff RF or mixer pentode, all-glass wire-ended DF62/1AD4 – Subminiature sharp-cutoff RF pentode, all-glass wire-ended, for use as RF/IF stage DF63 – Subminiature remote-cutoff RF pentode, all-glass wire-ended, for use as RF/IF stage DF64 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF65 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF66 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF67/6008 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF70 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF72 – Subminiature sharp-cutoff RF pentode, all-glass wire-ended, for use as RF/IF stage DF73 – Subminiature remote-cutoff RF pentode, all-glass wire-ended, for use as RF/IF stage DF91/1T4 – Remote-cutoff RF/IF pentode, miniature 7-pin base DF92/1L4 – Sharp-cutoff RF/IF pentode, miniature 7-pin base DF96/1AJ4 – Remote-cutoff RF/IF pentode, miniature 7-pin base DF97/1AN5 – Remote-cutoff RF/IF pentode, miniature 7-pin base DF161 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF167 – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF191 – RF pentode, miniature 7-pin base DF651 (CK549DX) – Subminiature AF pentode, all-glass wire-ended, for use in hearing aids DF668 – Subminiature RF pentode, all-glass wire-ended DF669 – Subminiature RF/IF pentode, all-glass wire-ended DF703 (5886) – Subminiature electrometer pentode, envelope has a moisture-repellent coating, all-glass wire-ended, for probe amplifiers DF904/1U4/5910 – Sharp-cutoff SW/VHF pentode, miniature 7-pin base DF906 – Sharp-cutoff SW/VHF pentode, miniature 7-pin base DF961 – Sharp-cutoff SW/VHF pentode, miniature 7-pin base —Special quality: D1F – D11F with a hand grip D2F – D12F with a hand grip D3F (959) – Acorn VHF pentode D11F – Acorn remote-cutoff RF/IF/AF pentode for portable transceivers D12F – Acorn RF/IF/AF pentode for portable transceivers
DK DK21 – Octode beam pentagrid converter DK32/1A7 – Heptode pentagrid converter DK40 – Octode pentagrid converter DK91/1R5 – Heptode pentagrid converter, miniature 7-pin base DK92/1AC6 – Heptode pentagrid converter, miniature 7-pin base DK96/1AB6 – Heptode pentagrid converter, miniature 7-pin base DK192 – Heptode pentagrid converter, miniature 7-pin base DK962 – Heptode pentagrid converter, miniature 7-pin base
DL DL11 – 1 W AF Power pentode, wide-range heater DL21 – 700 mW AF Power pentode DL25 – Power pentode DL29/3D6 – Power pentode DL33/3Q5GT – 330 mW AF Power pentode DL35 – 400 mW Power pentode DL41 – 1.2 W Power pentode