Power - Tetrode (NOT beam) (over 1000V 100W) ·BeamPower
Liquid-cooled ceramic-metal power tetrode for high-power audio and RF service, particularly modulators and linear amplifiers, with approximately 10 kW plate dissipation.
The Svetlana™ 4CW10,000A/8661 is a liquid cooled ceramic meatal tetrode designed for audio and radio frequency applications. It is particularly well-suited for modulator and linear amplifier use. The Svetlana 4CW10,000A/8661 has a directly-heated thoriated tungsten mesh filament for mechanical ruggedness. This modern mesh filament design is superior to the old hairpin design of the 1950's. In some applications, the input circuit may need minor tuning to use the Svetlana 4CW10,000A/8661 as a replacement because of the low inductance of the Svetlana mesh filament. The Svetlana 4CW10,000A/8661 is manufactured in the Svetlana factory in St. Petersburg, Russia, and is designed to be a direct replacement for the 4CW10,000A/8661 manufactured in the United States, England and elsewhere. Svetlana 4CW10,000A/8661 Outline drawing Water Inlet Water Inlet Cooler Down Cooler Up
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Maximum ratings promoted from source.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
HeaterVoltageNominal
7.5 V
Nominal
HeaterCurrentNominal
75 A
Nominal
Maximum Plate Voltage
7500 V
Maximum Screen Voltage
1500 V
Maximum Plate Dissipation
10000 W
Maximum Screen Dissipation
250 W