This tube is also recommended for use as a VHF TV linear amplifier.
| GENERAL DESCRIPTION |
|
The 4CX3500A is a compact tetrode designed to be used in VHF power amplifier service. It features a type of internal structure which results in high RF operating efficiency up to 220 MHz. This tube is also recommended for use as a VHF TV linear amplifier. |
| TECHNICAL SPECIFICATIONS | |
| Plate Dissipation (Max.) | 3500 watts |
| Screen Dissipation (Max.) | 165 watts |
| Grid Dissipation (Max.) | 50 watts |
| Frequency for Max. Ratings (CW) | 220 MHz |
| Cooling | Forced Air |
| Filament Voltage Current |
Thoriated Tungsten Mesh 5.0 volts 90 amperes |
| Capacitances (Grounded Cath. Connection) Input Output Feed-through |
111.0 pF 12.0 pF 0.5 pF |
| Capacitances (Grounded Grid Connection) Input Output Feed-through |
58.5 pF 10.0 pF 0.4 pF |
| Amplification Factor (g1-g2) | 4.5 |
| Base | Special Coaxial |
| Recommended Air-System Socket | SK-340 Family |
| Recommended Air Chimney | SK-346 |
| Maximum Seal & Anode Core Temperature | 250°C |
| Maximum Length | 7.25 in; 184.15 mm |
| Maximum Diameter | 4.94 in; 125.48 mm |
| Weight (approximate) | 5.5 lb; 2.5 kg |
| Operating Position | Vertical base up or down |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| HCJB Global | HC 100 | 100 |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| Eimac | Econco | Richardson Electronics |
| Penta Laboratories | ||
| 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 |