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  1. EIMAC 7203/4CX250B / CV6137 Transmitting Tetrode, beam power Tubes

    EIMAC 7203/4CX250B / CV6137 Transmitting Tetrode, beam power Tubes Used from a SK Estate mark 60W sold as-is.

    eBay

  2. Eimac 4W300B / 8249 Tube (Water-Cooled 4CX250B) 300 W 500 MHz

    Eimac 4W300B / 8249 Tube. Frequency for Max. Grid Dissipation (Max.). Capacitances (Gnd. Grid Connection) Plate Dissipation (Max.). : 300 watts. This tube is a pull.

    eBay

  3. NOS NIB Pair Sealed 4X150A / CV2519 / 7034 Vacuum Tubes By STC Great Britain

    The 4X150A is a great plug and play lower power alternative to the expensive 4CX250B. Do not buy this item and then ask us to falsify the forms. We always declare the sales price, as required by law.

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  4. Eimac SK-610 Air-System Tube Socket for 4CX250B, 4CX250R, +

    Eimac SK-610 Air-System Tube Socket for 4CX250B, 4CX250R, +.

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  5. ONE (1) Vacuum Tube Socket EIMAC SK-611 NEW IN BOX Wrapped NOS BOX Z

    EIMAC SK-611. Consists of the Inner Body (SK-600), Kel-F Retainer Ring, and Hardware. No Bypass Capacitor Included. Vacuumtubesdotnet is the largest supplier of NOS tubes in the world. Whatever you need we probably have and will be happy to list for you.

    eBay

  6. CQ Ham Radio Magazine Print Ad The New Eimac Ceramic 4CX250B Tetrode (1/58)

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  7. Eimac SK-620 Air-System Tube Socket for 4CX250R/4CX250B/4CX350A+

    Eimac SK-620 Socket. Specifications are from Eimac and may vary slightly due to upgrades, options, or revisions this unit may or may not have. When this socket is used, connection is made to each of the tube electrodes except the anode, and to one side of the integral screen-grid by-pass capacitor.

    eBay

  8. NOS Ceramic Chimney & Socket Combo for 4CX250 / 4CX150 / 8321 RF Tubes

    ✔ ️ Great fit for4CX250B, 4CX250R, 4CX150, 8321, and similar. ✔ ️ NOS – never used, just dusty from sitting on the shelf.

    eBay

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