Sperry microwave valve
designations (e.g. SAL39)
| 1st letter
always S |
| 2nd letter
- function |
| A |
Amplifier
klystron |
| B |
Backward wave
oscillator |
| M |
Multiplier
klystron |
| O |
Oscillator
klystron |
| R |
Reflex klystron |
| T |
Travelling
wave tube |
| 3rd letter
- band: |
| C |
4 to 8.2GHz |
| E |
63 to 86GHz |
| F |
86 to 110GHz |
| K |
18 to 26.5GHz |
| L |
500MHz to
2GHz |
| M |
40 to 63GHz |
| P |
250 to 500MHz |
| S |
2 to 4 GHz |
| U |
12.4 to 18GHz |
| V |
26.5 to 40GHz |
| X |
8.2 to 12.4GHz |
|
