1-800-RFPARTS (1-800-737-2787) 1-760-744-0700 (USA) ORDERS: rfp@rfparts.com 435 S PACIFIC ST SAN MARCOS, CA 92078

Tubes - Transmitting, Audio, Misc.

List  Grid 

per page
Set Descending Direction

  1. 4CX250B / 7203 Eimac Ceramic Transmitting Tube (Pull)

    4CX250B / 7203 Eimac Ceramic Transmitting Tube (Pull)

    $172.91

    This is a “Good Used Tube” or “Pull”. Some are removed from New or Reconditioned Military or Commercial Equipment. This tube receives the Full RF PARTS Testing, and is electrically similar to our NOS tube at 95%-100%. There may be some minor scratches or discoloration indicating that the tube had been in a socket.

    Used * No longer available for export
    MFR: Eimac
    SKU: 4CX250B-EI-P

    NOTE: PICTURE FOR REFERENCE ONLY. CONDITION MAY VARY 

    This tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Thirty Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

    Made in the USA

  2. 4CX250B / 7203 Eimac Ceramic Transmitting Tube with Center Tap (Pull)

    4CX250B / 7203 Eimac Ceramic Transmitting Tube with Center Tap (Pull)

    $179.91

    This tube has been tested, and is electrically similar to our NOS tube at 95%-100%. There may be some minor scratches or discoloration indicating that the tube had been in a socket.

    • This tube was customized with a center tap (see photos)

    Used * No longer available for export
    MFR: Eimac
    SKU: 4CX250B-EI-CT-P

    This tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Thirty Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

    Made in the USA

  3. YC-136 Eimac Ceramic Transmitting Tube (4CX250B) (Pull)

    YC-136 Eimac Ceramic Transmitting Tube (4CX250B) (Pull)

    $179.91

    This tube is an improved version of the 4CX250B, with slightly higher average gain. This tube has been tested, and is electrically similar to a NOS tube at 95%-100%. There may be some minor scratches or discoloration indicating that the tube had been in a socket

    Used * No longer available for export
    MFR: Eimac
    SKU: YC-136-P

    This tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Thirty Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

    Made in the USA

3 Item(s)