| GENERAL DESCRIPTION |
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The 807 is a heater-cathode type of transmitting tube incorporating new design principles involving the use of directed electron beams. Features resulting from the use of these principles in the 807 are that the screen does not absorb appreciable power and that efficient suppressor action is supplied by space-charge effects produced between the screen and the plate. The resultant high power sensitivity makes this tube especially suited for use as an r-f or a-f amplifier, frequency multiplier, oscillator and plate-modulated amplifier. The plate connection is brought out through a separate seal at the top of the bulb to maintain low grid-plate capacitance. In r-f applications the 807 may be operated at maximum ratings in all classes of service at frequencies as high as 60 megacycles. In class AB audio service two tubes of this type are capable of delivering an output of approximately 80 watts. The 807 has a ceramic base. |
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| TECHNICAL SPECIFICATIONS | |
| ELECTRICAL | |
| Cathode | Unipotential |
| Heater Voltage Current |
6.3 ± 0.6 ac or dc volts 0.9 amp |
| Transconductance | 6000 μmhos |
| Amplification Factor | 8 |
| Direct Interelectrode Capacitances Grid No.1 to Plate Input Output |
0.2 max. μμf 12 μμf 7 μμf |
| MECHANICAL | |
| Mounting Position | Any |
| Maximum Overall Length | 5-¾" |
| Seated Length | 4-31/32" ± 5/32" |
| Maximum Diameter | 2-1/16" |
| Weight (Approx.) | 3 oz |
| Bulb | ST-16 |
| Cap | Small (JETEC No.C1-1) |
| Base | Medium-Micanol-Shell Small 5-Pin (JETEC No.A5-11) |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| Collins | 231D-20 | 3 |
| 207A-1 | 10 | |
| AN/FRT-5 | 15 | |
| AN/FRT-26 | 15 | |
| 207B-1 | 35 | |
| AN/FRT-6 | 40 | |
| AN/FRT-22 | 40 | |
| Continental Electronics | 420 A | 500 |
| Gates | HF-5 / HF-5 B | 5 |
| HF-10 / HF-10 B | 10 | |
| HF-20 / HF-20 B | 20 | |
| Philips | SOZ 362 | 5 |
| 8FZ 508 | 5 | |
| SOZ 363 | 10 | |
| 8FZ 701 | 10 | |
| 8FZ 509 | 10 | |
| 8FZ 510 | 25 | |
| 8FZ 513 | 25 | |
| 8FZ 503 / 8FZ 512 | 120 | |
| RCA | BHF-1A | 1 |
| ET-4750 | 7.5 | |
| ET-7285 | 7.5 / 10 | |
| BHF-10A | 10 | |
| BHF-10B | 10 | |
| BHF-50A | 50 | |
| BHF-50B | 50 | |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| Vacuum Tubes, Inc. | ||
| 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 |