|
|
British Valve
Equivalents (1930's)
| * |
No
exact equivalent |
B4 |
4 volt
battery |
IA4 |
Indirect
4v AC |
DA6 |
Direct
6v AC |
| B2 |
2 volt
battery |
B6 |
6 volt
battery |
DA4 |
Direct
4v AC |
DA10 |
Direct
10v AC |
| MULLARD |
COSSOR |
MARCONI,
OSRAM |
MAZDA |
SIX-SIXTY |
Type |
Fil |
| PM12M |
220VS |
VS2 |
S215VM |
218VSG |
Screened
grid multi-mu, tetrode |
B2 |
| PM12V |
220VSG |
* |
* |
215VSG |
Screened
grid HF amp, tetrode |
B2 |
| PM12A |
220SG |
S22 |
S215B |
218SG |
Screened
grid HF amp, tetrode |
B2 |
| PM12 |
215SG |
S215,
S21 |
S215A,
SG215 |
215SG |
Screened
grid, tetrode |
B2 |
| PM1A |
210RC |
H2 |
H210 |
210RC |
Resistance/capacity
coupled triode |
B2 |
| PM1HF |
210HF |
HL210 |
* |
210HF |
Med.
imp. HF or detector, triode |
B2 |
| PM1HL |
210HL |
HL210 |
HL210,
HL2 |
210HL |
Non-microphonic
detector, triode |
B2 |
| PM1LF |
210LF |
L210 |
* |
210LF |
Med.
imp. LF or detector, triode |
B2 |
| PM2DX |
210Det |
L2/B |
L210,
L2 |
210D |
Detector
& LF amplifier, triode |
B2 |
| PM2A |
220PA |
LP2 |
P220 |
220PA |
Power
output, triode |
B2 |
| PM2 |
220P |
P215 |
* |
220P |
Power
output, triode |
B2 |
| PM202 |
* |
P2 |
P220A |
220SP |
Super
power output, triode |
B2 |
| PM252 |
230XP |
P240 |
P240 |
240SP |
Super
power output, triode |
B2 |
| PM22A |
220HPT |
PT2 |
Pen220 |
220Pen |
Low
consumption output, pentode |
B2 |
| PM22 |
230HPT,
220PT |
PT240 |
Pen230,
Pen220A |
230PP |
Super
power output, pentode |
B2 |
| PM2B |
220B |
* |
PD220 |
* |
Class
B output, triode |
B2 |
| PM14 |
410SG |
S410 |
* |
4075SG |
Screened
grid, tetrode |
B4 |
| PM3A |
410RC |
H410 |
* |
4075RC |
Resistance/capacity
coupled triode |
B4 |
| PM3 |
410HF |
HL410 |
* |
4075HF |
Med.
imp. LF or detector, triode |
B4 |
| PM4DX |
410LF |
L410 |
* |
410D |
Med.
imp. LF or detector, triode |
B4 |
| PM4 |
410P |
P410 |
* |
410P |
Power
output, triode |
B4 |
| PM254 |
425XP,
415XP |
P415,
P425 |
P425 |
420SP |
Super
power output, triode |
B4 |
| PM16 |
610SG |
S610 |
* |
6075SG |
Screened
grid, tetrode |
B6 |
| PM5X |
610HF |
HL610 |
HL610 |
6075HF |
Med.
imp. LF or detector, triode |
B6 |
| PM6D |
610LF |
L610 |
* |
610D |
Med.
imp. LF or detector, triode |
B6 |
| PM256 |
625P |
P625 |
P625B |
625SP |
Super
power output, triode |
B6 |
| PM256A |
610XP |
P625A |
P625A |
625SPA |
Super
power output, triode |
B6 |
| PM26 |
615PT |
PT625 |
* |
617PP |
Super
power output, pentode |
B6 |
| VP4 |
* |
* |
* |
HP2AC |
Screened
grid multi-mu HF, tetrode |
IA4 |
| SP4 |
MSPen |
* |
* |
HP1AC |
Screened
grid HF amp, tetrode |
IA4 |
| MM4V |
MVSG |
VMS4 |
AC/SGVM |
4MMAC |
Screened
grid amp multi-mu, tetrode |
IA4 |
| S4VA |
* |
* |
AC/S2 |
4XSGAC |
Screened
grid amp, tetrode |
IA4 |
| S4VB |
MSG/LA |
MS4,
MS/4/B |
AC/SG |
4YSGAC |
Screened
grid amp, tetrode |
IA4 |
| TDD4 |
* |
MHD4 |
* |
* |
LF
amp & detector, double diode triode |
IA4 |
| SD4 |
* |
* |
* |
* |
SG
LF amp & detector, diode tetrode |
IA4 |
| 904V |
41MH |
* |
AC2/HL |
4DXAC |
High
magnification detector, triode |
IA4 |
| 354V |
41MHF |
MH4 |
ACHL |
4GPAC |
Detector
& general purpose, triode |
IA4 |
| 244V |
41MHL |
MHL4 |
* |
4HLAC |
General
purpose, triode |
IA4 |
| 164V |
41MLF |
* |
* |
4LAC |
General
purpose, triode |
IA4 |
| Pen4V |
MPPen |
* |
* |
4PenAC |
Power
output, tetrode |
IA4 |
| Pen4VA |
MPPenA |
MPT4 |
ACPen |
* |
Power
output, tetrode |
IA4 |
| ACO64 |
* |
* |
* |
HV
4/1 |
Output
amp, triode |
DA4 |
| ACO44 |
4XP |
PX4 |
PP3/250 |
HV
4/2 |
Output
amp, pentode |
DA4 |
| DO24 |
* |
PX25 |
PP5/400 |
* |
Output
amp, triode |
DA4 |
| DO25 |
620T |
LS6A |
* |
HV
6/5 |
Output
amp, triode |
DA6 |
| DO26 |
* |
* |
* |
* |
Output
amp, triode |
DA4 |
| PM24A |
* |
* |
* |
4PenSP |
Output
amp, pentode |
DA4 |
| PM24M |
PT41 |
PT4 |
* |
4PenM |
Output
amp, pentode |
DA4 |
| PM24D |
* |
PT25 |
* |
* |
Output
amp, pentode |
DA4 |
| DO60 |
660T |
DA60 |
* |
* |
Output
amp, triode |
DA6 |
| DO75 |
* |
* |
ES75 |
* |
Output
amp, triode |
DA10 |
| DW2 |
506BU |
U10 |
UU4 |
W462 |
60mA
@ 250v, double diode rectifier |
DA4 |
| DW3 |
442BU |
U12 |
UU120/350 |
W120/350 |
120mA
@ 350v, double diode rectifier |
DA4 |
| DW4 |
460BU |
U14 |
UU120/500 |
W120/500 |
120mA
@ 500v, double diode rectifier |
DA4 |
| IW2 |
* |
* |
UU2 |
W60/250 |
60mA
@ 250v, double diode rectifier |
IA4 |
| IW2A |
* |
* |
UU60/250 |
IH60/250 |
75mA
@300v, double diode rectifier |
IA4 |
| IW3 |
* |
* |
* |
* |
120mA
@ 350v, double diode rectifier |
IA4 |
|
