Catalog
Showing 46–60 of 129 items
4CX20000E
The 4CX20,000E is a ceramic/metal power
tet-rode vacuum tube intended for use as a VHF power
amplifier. It features a type of internal
mechanical structure, which results in rf oper-
ating efficiency. Low rf losses in this structure
permit operation at full ratings to 110 MHz.
The 4CX20,000E provides high gain in FM
broadcast service and is also recommended
for rf linear power amplifier service, including
IBOC digital transmission. The anode is
rated for 20 kilowatts of dissipation with
forced-air cooling and incorporates a com –
pact, highly efficient cooler of new design.$3,994.99
4CX250B
The Penta 4CX250B amplifier tube is a forced-air cooled, 250-watt plate dissipation, external anode, ceramic and metal radial beam tetrode. The superior construction of the 4CX250B makes it ideal for use as a grid driven RF amplifier or oscillator, or an AF power amplifier or modulator.
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572B
The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.
$89.95
572B Matched Pair
The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.
$179.90
572B Matched Quad
The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.
$359.80
572B Matched Trio
The Penta Laboratories 572B audio tube for sale is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B audio tube amplifier pack is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.
$269.85
Showing 46–60 of 129 items