GENERAL DESCRIPTION |
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The TH 4T 4100 is a tetrode cooled by natural or forced air used as an oscillator, AF or RF amplifier operating up to 30 MHz at full load. Its high thermal inertia anode can dissipate up to 2 kW. |
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TECHNICAL SPECIFICATIONS | |
ELECTRICAL | |
Type of cathode | Thoriated tungsten |
Heating | Direct |
Filament voltage | 12.6 V ± 5 % |
Filament current, approx. | 35 A |
Interelectrode capacitances, approx. : - input - output - control grid-anode |
60 pF 14 pF 0,6 pF |
Amplification factor g1 - g2, avg. | 8 |
Transconductance (Ia = 800 mA) | 16 mA/V |
MECHANICAL | |
Base | Special |
Operating position | Vertical, anode connector up or down |
Anode cooling | Radiation cooled |
Glass bulb maximum temperature | 250 °C |
Electrode terminals maximum temperature | 175 °C |
Glass bulb cooling depending on average anode dissipation : - below 1000 W - above 1000 W |
Natural convection Forced air : 4 m3/mn |
Net weight | 2.2 kg |
Specifications may change without notice |
THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
Manufacturer | Transmitter specifications | Power in kW |
AME | ENE 1470 | 30 |
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 |