Catalog
Showing 25–36 of 129 items
3CX3000A7
The Penta 3CX3000A7 tube for sale is a high-mu metal/ceramic external anode power triode. Maximum plate dissipation for this tube is 4000 watts, and cooling is forced-air. At moderate plate voltages, relatively high power output can be obtained from the 3CX3000A7 tube for sale as an amplifier, oscillator, or modulator.
For grounded-grid operation, excellent shielding between the input and output circuits is provided by the grid, handily terminated between the filament and plate terminals. A power gain of approximately 20 times can be obtained under operation with zero grid bias. The 3CX3000A7 amplifier tube for sale is designed using a rugged, lowinductance cylindrical filament stem, making it especially well suited for use in the linear filament tank circuit under VHF operation.
$1,144.99
3CX800A7
The Penta Laboratories 3CX800A7 tube for sale is a compact power triode intended for use as a cathode-driven Class AB2 or Class B amplifier in rf applications including the VHF band. As a linear amplifier, high power gain may be obtained without sacrifice of low intermodulation distortion characteristics. Low grid interception and high amplification factor combine to make the 3CX800A7 drive power low for a tube of this power capacity. A single 3CX800A7 will deliver 750 watts PEP and 750 watts key-down CW output power to 350 MHz. The 3CX800A7 replacement tube for sale is useful to 450 MHz. The anode is forced-air cooled for 800 watts of dissipation.
$1,049.95
3CX800A7 Matched Pair
The Penta Laboratories 3CX800A7 tubes for sale are compact power triodes intended for use as cathode-driven Class AB2 or Class B amplifiers in rf applications, including the VHF band. As a linear amplifier, high power gain may be obtained without sacrifice of low intermodulation distortion characteristics. Low grid interception and high amplification factor combine to make the 3CX800A7 drive power low for a tube of this power capacity. A single 3CX800A7 will deliver 750 watts PEP and 750 watts key-down CW output power to 350 MHz. The 3CX800A7 tubes for sale are useful to 450 MHz. The anode is forced-air cooled for 800 watts of dissipation.
$1,900.00
Showing 25–36 of 129 items