4cx800a transmitting ceramic tube
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Radio transmitting Valves

4cx800a transmitting ceramic tube

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£449.95
(£374.96 exc. VAT)
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Product code: ACOM-VALVE
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£449.95
12 Months 14.9% APR
£45.00
£38.77
£510.29
£449.95
18 Months 14.9% APR
£45.00
£25.85
£510.29
£449.95
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£45.00
£19.39
£510.29
£449.95
36 Months 14.9% APR
£45.00
£12.92
£510.29
£449.95
48 Months 14.9% APR
£45.00
£9.69
£510.29
£449.95
12 Months 19.5% APR
£45.00
£40.33
£528.92
£449.95
18 Months 19.5% APR
£45.00
£26.88
£528.92
£449.95
24 Months 19.5% APR
£45.00
£20.16
£528.92
£449.95
36 Months 19.5% APR
£45.00
£13.44
£528.92
£449.95
48 Months 19.5% APR
£45.00
£10.08
£528.92

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4cx800a transmitting ceramic tube

4cx800a transmitting ceramic tube


The 4CX800A us a high-performance ceramic metal tetrode with a plate dissipation rating of 800 watts with forced air cooling. The performance characteristics of the 4CX800A allow its wo use as a hifg gain grid-driven RF amplifter or in grounded grid service. Full equivalent to the modern 4CX800A tube.

Name: GU74B;

Type: tetrode;

Cathode type: oxide, indirect heating;

Application field: power amplification in broadcasting and SSB equipment;

Brief application: amplification;

Envelope: metall-ceramic;

Cooling method: forced air;

Dimensions: 90mm x 71mm;

Mass: 0.55 kg;

Filament voltage: 12.6 V;

Filament current: 3.3 - 3.9 A;

Mutual conductance: 26 to 38 mA/V;

Output power: 0.6 kW;

Maximum anode voltage: 2kV/4kV in peak;

Maximum operating frequency: 150MHz.

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