Is There Somewhere That Checks Ceramic Rf Power Tubes

There is no such.

Is there somewhere that checks ceramic rf power tubes.

By matt erickson kk5dr the info i am putting forth here comes from engineers at cpi eimac rockwell collins and my years of experience with rf power tubes. This tube utilizes a ruggedized. Take the 4cx35 000a which was used in the harris mw50 transmitters. Plus in the a models there were two 4cx1500a driver tubes.

About vacuum power tubes. These are the biggest tubes in an amp that pump out serious wattage. There are also concerns regarding the lifetime of dc excited glass tubes. A receiver protector is a microwave component which will limit a high power rf signal to a level low enough to be successfully handled by the components that follow it.

Glass is naturally more fragile than metal and the risk of damage during shipment and installation is greater. This clip shows how even with a very high gain setting the characteristics of the tubes come through. I personally love the kt88 and the el34s and would love to hear two duets of each in a 100 watt amp. Beo is not hv or rf conductive at the voltages involved.

The transmitter used two of these tubes one in the rf section and one it the modulator. Also check out ola englund trying some power tubes in his randall signature amp the satan. The eimac 4cx250b m is a ceramic metal forced air cooled external anode tetrode with a maximum anode dissipation rating of 250 watts. The data i am publishing here is supported in the technical article care and feeding of power grid tubes.

Power tubes or more accurately termed output tubes are what provide the big sound. The pink color of the ceramic of some tubes especially rca and russian has nothing to do with beo. 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. The 4cx250b m is intended for use in applica tions where tight control of electrical specifica tions is required and replaces the 4cx250b in all applications.

Radio frequency rf a radio frequency rf signal is an electromagnetic wave with a frequency from about 15 kilohertz to above 100 ghz. The largest failure concern with glass tubes is that the dc excitation process bombards a tube s optics and electrodes with ions which increases the chance. Those tubes such as the 8873 8072 and others that are conduction cooled use an external beo thermal link between the tube anode and a dissipator such as an aluminum heat sink. With both cathode power and high voltage capability considered the biggest baddest receiving class beam power tube available was the 6l6 the transmitting equivalents of which the 807 and its 12 6 v heater sibling the 1625 had with their top cap plate connection and ceramic interelement insulation already been modified toward.