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  1. GU74B GU-74 B eq. 4CX800A Tetrode Vaccum Tube RF Amplifier Cathode USSR Alpha

    The GU-74B, also known as the 4CX800A, is a high-performance tetrode tube renowned for its excellence in RF power amplifiers like Alpha 99, 91B, 8100, and ACOM 1000, 1006, 1010, and 2000A. Cathode Type: Oxide, indirect heating.

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  2. GU-74B Tube SVETLANA Tetrode eq. 4CX800A ceramic-metal USED Good Condition 1pc.

    Fully equivalent to the modern 4CX800A tube. Russian tetrode tube GU-74B. Lot - 1pcs. or more. Output power: 0.6 kW;. USED CONDITION. Forced air cooling of at least 35m3/h. Previously used.

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  3. New GU74B GU-74B Tetrode Tube 4CX800A QRO (Communications, Broadcasting, Etc.)

    Up for sale is a GU-74B Tetrode Tube, perfect for your RF amplifier projects. Structure: Tetrode. One GU-74B Tetrode Tube. Used, but in excellent working condition. Type: GU-74B.

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  4. GU-74B Tube Generator Tetrode SVETLANA eq. 4CX800A / 4CX800 NOS USSR lot 1pc.

    Fully equivalent to the modern 4CX800A tube. GU-74B Generator Tetrode Tube. Lot - 1pcs. See other lots. Forced air cooling of at least 35m3/h. Brief application: amplification.

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  5. GU-74B Tube Generator Tetrode SVETLANA eq. 4CX800A / 4CX800. USED. Tested

    Used. Good condition. Tested

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  6. GU-74B ГУ-74Б soviet Air Forced Metal Ceramic Tetrode Tube 4CX800A ACOM ALPFA99

    Forced air cooling of at least 35 m³/h;. Output power: 0.6 kW;. We will make every effort to fix any problem. Durability is not less than 2000h;. Mutual conductance: 26 to 38 mA/V;.

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  7. GU-74B / ГУ-74Б Used. Generator tetrode.Tube 4CX800A ACOM ALPFA99. Lot 1 pcs.

    GU-74B / ГУ-74Б Used. Generator tetrode. Lot 1 pcs.

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  8. Socket for Tube GU-74B / 4CX800A Carbolite Collet Dismantling Good condition 1pc

    Socket for Tube GU-74B /4CX800A. Carbolite / Collet. Carbolite base, Collet mount. Dismantling, Good condition. The condition corresponds to the photo of the lot.

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