Penta manufactures a vast selection of power tubes used in industrial applications. Included are diverse manufacturing operations like welding, surface hardening, hot forming, sterilizing, soldering and heat sealing. Penta’s highly acclaimed RF generator vacuum tubes have proven to be exceptionally reliable in harsh industrial environments. In addition to the above applications, our tubes support instrumentation amplifiers, traveling wave devices, magnetrons, klystrons, gyrotrons and power generators.
This is only a partial list of the products that Penta Laboratories typically carries, please contact us directly to inquire about other tube types.
811A
The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency amplifier or modulator, or as an RF amplifier or oscillator. The 811A is capable of outputting up to 160 watts at frequencies up to 30 MHz.
$49.95
811A Matched Pair
The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency amplifier or modulator, or as an RF amplifier or oscillator. The 811A is capable of outputting up to 160 watts at frequencies up to 30 MHz.
$99.90
811A Matched Quad
The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency amplifier or modulator, or as an RF amplifier or oscillator. The 811A is capable of outputting up to 160 watts at frequencies up to 30 MHz.
$199.80
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