Type 4 4BC8-4CB6 Vacuum Electronic Radio TV Tubes Replacement Substitute Table

The tubes in the replacement table allows to select identical pin-for-pin replacement tubes and improved characteristic and foreign made substitute types. Please check the OddMix Vacuum Tubes listing as a few of some of the types are usually available. OddMix tubes comprise a wide variety of rare, vintage, exotic, original and collector's special vacuum tubes, electron tubes and thermionic valves.

These tubes are differ in size and shape and purpose. They were made by a variety of companies decades ago at the "good old times". This "4" group is made up of a few vintage tubes. Many tube types listed here were no longer listed in the "RCA Receiving Tube Manual" 1964 (8-64) Edition. First come first serve as only a few of each of these rare historical vacuum tubes available!

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     Original      Pin for Pin                                Pin for Pin
     Tube Type     Substitute                                 Improved Substitute
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     4BC8          4BK7,  4BQ7,  4BQ7A, 4BS8,  4BZ7,  4BZ8    -
     4BK7          4BC8,  4BQ7,  4BS8,  4BZ8                  -
     4BQ7          4BC8,  4BK7,  4BS8,  4BZ7,  4BZ8           4BQ7A
     4BS8          4BC8,  4BK7,  4BQ7,  4BQ7A, 4BZ8           -
     4BZ7          4BC8,  4BK7,  4BQ7,  4BS8,  4BZ8           -
     4BZ8          4BC8,  4BK7,  4BQ7,  4BS8                  -
     4CB6          4BC5                                       -

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