These tubes are used but completely checked out at.
Ceramic rf power tube checked.
The eimac 8974 is a ceramic metal water cooled power tetrode designed for very high power rf amplification.
The two sections may.
Richardson electronics offers an extensive line of ceramic rf power capacitors ideally suited for high voltage and high current applications.
The 8974 has a two section thoriated tungsten mesh filament mounted on water cooled supports.
They combine the best of both worlds having the low seal leakage and low out gassing typical of ceramic external anode tubes and the rugged wider spaced high dissipation grids.
Ceramic tubes with thoriated tungsten electron emitters have much longer life and higher reliability than any other type of power grid tube as a general rule.
Yes this tube was used to heat people with rf way back when scary in this video paul goes through the testing procedure for large power tubes out of c.
4cx2500a gu 84b svetlana power transmitting tetrode the gu 84b is a ceramic metal forced air cooled tetrode intended for use in power amplifiers with distributed amplification and for ssb signal amplification with output power up to 2 5 kw at frequencies up to 75 mhz as well as for power amplification at frequencies up to 250 mhz with output power up to.
Make offer eimac 3 400z rf transmitter tube with chimney socket transformer fan.
Rf parts test lab and meet factory specs.
A thermionic cathode first and second grids and a plate called anode in british english.
There are several varieties of tetrodes the most common being the screen grid tube and the beam tetrode in screen grid tubes and beam tetrodes the first grid is.
Plate barrel feed through tubular and pot styles.
Brand and cosmetic condition.
3cx10000b7 pull eimac triode tube metal ceramic high mu power pull the eimac 3cx10000b7 is a ceramic metal high mu power triode designed especially for the use as a cathode driven class ab rf amplifier.
This tube is used for medium wave and high frequency broadcast service at output power levels in the megawatt range.
Eimac 3 400z rf transmitter tube with chimney socket transformer fan tested.
6146 p transmitting tube usa brand clean pullout original usa tube for old style equipment that requires this particular tube.
A tetrode is a vacuum tube called valve in british english having four active electrodes the four electrodes in order from the centre are.
Various usa brands available.
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