Make
Webster
Model
440
Description
Webster Bandspanner 440 is a 10 channel, crystal controlled, 11 meter AM transceiver. The I.F. is 1650kc and 259kc and the receiver is dual conversion.
RX
10
TX
10
Power Input
12VDC, 115VAC
Sams #
CB-5, page 150
Tube Complement
| v1 | RF Amplifier | 12BA6 |
| v2 | Mixer - Oscillator | 6GH6 |
| v3 | 2nd Converter | 12BE6 |
| v4 | IF Amplifier | 12BA6 |
| v5 | Detector - ANL | 12AL5 |
| v6 | AF Amp - Speech Amp | 12AX7 |
| v7 | Output - Modulator | 12AB5 |
| v8 | Transmit Osc - Buffer | 6GH8 |
| v9 | Final RF Amplifier | 12AB5 |
| v10 | Rectifier | 12X4 |
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