Catalog
Showing 19–36 of 130 items
3CX15,000A7
The Penta Laboratories 3CX15,000A7 for sale is a ceramic / metal power triode intended for use as a zero-bias Class rf amplifier or Class C power amplifier or oscillator. Class B operation with zero grid bias offers circuit simplicity by eliminating the bias supply. In addition, grounded-grid operation is attractive since a power gain as high as twenty times can be obtained with the 3CX15,000A7.
$2,399.95-
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3CX1500A7
The Penta Laboratories PL8877/3CX1500A7 amplifier tube for sale is a rugged ceramic and metal power triode designed for use as cathode driven Class AB2 or Class B amplifier in audio or rf applications, including the VHF band. It can also be used as a cathode driven plate modulated Class C rf amplifier. 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 PL8877/3CX1500A7 drive power requirements exceptionally low for a tube of this power capacity.
$1,149.99 -
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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.
$899.95 -
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.
$1,799.90 -
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Showing 19–36 of 130 items