Mazda code (e.g. 10P14,
U52)
Digits, letters (except where
letter = U or UU), digits; easy to confuse with the RETMA system!
| 1st digits
give heater voltage, except 10, 20 and 30 indicate 100mA, 200mA,
300mA. 1=1.4V, 6=6.3V. |
| Letters
give type of valve
Mazda codes tend not
to double up letters, thus L can also indicate a double triode. |
C |
Frequeny changer |
| D |
Signal diode or double
diode |
| F |
Signal tetrode/pentode |
| FD |
Signal tetrode/pentode
plus diode(s) |
| FL |
Signal tetrode/pentode
plus triode |
| K |
Thyratron |
| L |
Signal triode or double
triode |
| LD |
Signal triode plus diode(s) |
| M |
Tuning indicator |
| P |
Output tetrode/pentode |
| PL |
Output tetrode/pentode
plus triode |
| U |
Halfwave rectifier (no
1st figure) |
| UU |
Fullwave rectifier (no
1st figure) |
| Final
digits are used to distinguish between valves. |
|
