Make
Globe
Model
King 500A Speech Amplifier & Modulator
Catalog #
1000B003
Year
1956
Orig Price
$239.50 (1956)
Complete with own power supply. Will modulate RF inputs in excess of 500 watts. Push-to-talk feature included for ease of operation. Meter allows constant monitoring of modulator plate current. Complete with meter and tubes. Shpg. wt. 75 lbs.
Technical Specifications
| Manufacturer | Globe |
| Model | King 500A Speech Amplifier & Modulator |
| Device Function | Speech Amplifier and Plate Modulator |
| Power Capability | Modulates RF inputs in excess of 500 watts; push-to-talk operation |
| Application | High-level AM voice modulation for Globe King transmitters |
| Years Manufactured | 1956 |
| Original Price | $239.50 (1956) |
References
- Radiomuseum – Globe King 500 Modulator – Modulator specifications and component documentation.
- Boatanchor Manual Archive – Globe King 500A Speech Modulator – Schematic diagrams and operating instructions.