The 750TL in class-C r-f service will deliver up to 3000 watts plate power output with 125 watts driving power. Two 750TL's in class-AB2 modulator service will deliver up to 3500 watts maximum-signal plate power output with 46 watts driving power.
| GENERAL DESCRIPTION |
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The 750TL is a medium-mu power triode intended for use as an amplifier, oscillator, or modulator. It has a maximum plate dissipation rating of 750 watts and a maximum plate voltage rating of 10,000 volts at frequencies up to 40 Mc. The 750TL is cooled by air-circulation and radiation. The 750TL in class-C r-f service will deliver up to 3000 watts plate power output with 125 watts driving power. Two 750TL's in class-AB2 modulator service will deliver up to 3500 watts maximum-signal plate power output with 46 watts driving power. |
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| TECHNICAL SPECIFICATIONS | |
| ELECTRICAL | |
| Filament Voltage Current |
Thoriated Tungsten 7.5 volts 21.0 amperes |
| Amplification Factor (Average) | 15 |
| Direct Interelectrode Capacitances (Average) Grid-Plate Grid-Filament Plate-Filament |
5.8 μμf 8.5 μμf 1.2 μμf |
| Transconductance (Ib=250 ma., Eb=5000 v.) | 3500 μmhos |
| Frequency for Maximum Ratings | 40 mc |
| MECHANICAL | |
| Base | Special 4-pin |
| Socket | Johnson type No. 124-214 or equivalent |
| Mounting Position | Vertical, base down or up |
| Cooling | Air-circulation and radiation |
| Recommended Plate and Grid Heat-Dissipating Connectors | HR-8 |
| Maximum Overall Dimensions: Length Diameter |
17.0 inches 7.13 inches |
| Net Weight (Average) | 2.9 pounds |
| Shipping Weight (Average) | 13 pounds |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| Collins Radio | 231D-20 | 3 |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| PRICE LEVEL (US$) | |||||
| 1 | 2 | 3 | 4 | 5 | 6 |
| 0 - 10 | 10 - 100 | 100 - 1000 | 1000 - 10,000 | 10,000 - 50,000 | 50,000 - 100,000 |