Make
Webster
Model
Bandspanner 412
Serial #
101553
Description
9 Tube CB transceiver
Channels
6 (5 internal and 1 external xtal set)
Power Input
12VDC, 115VAC
Sams #
CB-6, page 151
notes
Looks similar to Raytheon Raytel TWR-x
Tube Complement
| v1 | RF Amp |
6BH6 |
| v2 | 1st mixer - 1st receive oscillator |
12AT7 |
| v3 | Converter |
12BE6 |
| v4 | 1st IF Amplifier |
6BH6 |
| v5 | 2nd IF Amplifier |
6BH6 |
| v6 | AVC - Noise Limiter |
6AL5 |
| v7 | AF Amplifier - Speech Amplifier |
12AX7 |
| v8 | Output - Modulator |
12AQ5 |
| v9 | Transmitter Oscillator - Final |
6CX8 (6JL8 alternate) |
Webster Bandspanner 412
Webster Bandspanner 412 – rear view