NOS and Used
Vacuum Tube Products and Price List.
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TUBE SUBSTITUTION LIST
6A3 - 6ZY5G

* These are parallel filament circuits.
# In series circuits, this tube doesn't need any form of regulated warm up time.

TO REPLACE	USE
6A3
6A4	6A4LA { This might not work in some circuits. }
6A4LA	6A4{ This might not work in some circuits. }
6A5	6A5G
6A5G	6A5
6A6	6A6X
6A6X	6A6
6A7	6A7S, 6A7M, 6A8G
6A7S	6A7
6A7M	6A7, 6A8G
6A8	6A7, 6A8G, 6A8GT, 6A8GTX, 6A8MG, 6D8*, 6D8G*
6A8G	6A7, 6A8, 6A8GT, 6A8GTX, 6A8MG, 6D8*, 6D8G*
6A8GT	6A8, 6A8G, 6A8GTX, 6A8MG, 6D8*, 6D8G*
6A8GTX	6A8G, 6A8, 6A8GT, 6A8MG, 6D8*, 6D8G*
6A8MG	6A8G, 6A8GT, 6A8GTX, 6A8, 6D8*, 6D8G*
6AB4	6664, WL6664
6AB5	6N5, 6N5G, 6AB5/6N5
6AB5 / 6N5	6AB5, 6N5, 6N5G
6AB6G	6N6*, 6N6G*, 6N6MG*
6AB7	6AB7Y, 6AC7, 6AC7A, 6AC7Y, 6AJ7, 6SG7* { This might not work in some circuits. } 6SG7GT* { This might not work in some circuits. } 6SG7Y* { This might not work in some circuits. } 6SH7* { This might not work in some circuits. } 6SH7GT*
6AB7Y	6AB7, 6AC7, 6AC7A, 6AC7Y, 6AJ7, 6SG7* { This might not work in some circuits. } 6SG7GT* { This might not work in some circuits. } 6SG7Y* { This might not work in some circuits. } 6SH7* { This might not work in some circuits. } 6SH7GT*
6AB8
6AB9
6AC5	6AC5G, 6AC5GT,6AC5GT/G
6AC5G	6AC5, 6AC5GT,6AC5GT/G
6AC5GT	6AC5G, 6AC5,6AC5GT/G
6AC5GT/G	6AC5G, 6AC5GT,6AC5
6AC6G	6AC6GT
6AC6GT	6AC6G
6AC7	6AC7A, 6AC7Y, 6AB7, 6AB7Y, 6AJ7, 6SG7*{ This might not work in some circuits. } 6SC7GT* { This might not work in some circuits. } 6SG7Y * { This might not work in some circuits. } 6SH7* { This might not work in some circuits. } 6SH7GT* { This might not work in some circuits. }
6AC7A	6AC7, 6AC7Y, 6AB7, 6AB7Y, 6AJ7, 6SG7*{ This might not work in some circuits. } 6SC7GT* { This might not work in some circuits. } 6SG7Y * { This might not work in some circuits. } 6SH7* { This might not work in some circuits. } 6SH7GT* { This might not work in some circuits. }
6AC7Y	6AC7A, 6AC7, 6AB7, 6AB7Y, 6AJ7, 6SG7*{ This might not work in some circuits. } 6SC7GT* { This might not work in some circuits. } 6SG7Y * { This might not work in some circuits. } 6SH7* { This might not work in some circuits. } 6SH7GT* { This might not work in some circuits. }
6AC9
6AC10
6AD5G
6AD5GT
6AD6G
6AD7G
6AD8
6AD10
6AE5
6AE5G
6AE5GT
6AE5GT/G
6AE6
6AE6G
6AE7G
6AE7GT
6AE8
6AF3
6AF4
6AF4A
6AF5G
6AF6G
6AF6GT
6AF7G
6AF10
6AF11
6AG5
6AG6G
6AG7
6AG7Y
6AG9
6AG10
6AG11
6AH4GT
6AH5
6AH5G
6AH6
6AH6V
6AH7GT
6AH9
6AJ4
6AJ5
6AJ7
6AJ8	6I1P, 6I1P-EV, ECH81
6AK5	6J1, 403A, 5591, 5654, EF95
6AK6
6AK7
6AK8
6AK9
6AK10
6AL3
6AL5	5726, 6663, 6AL5W, 6EB6, 6X2pi, D717, EAA91, WL6663
6AL6
6AL6G
6AL7
6AL7GT
6AL9
6AL11
6AM4
6AM5
6AM6
6AM8
6AM8A
6AN4
6AN5
6AN6
6AN7
6AN8
6AN8A
6AQ4
6AQ5	6669, WL6669
6AQ5A
6AQ6
6AQ7GT
6AQ8	ECC85
6AR5
6AR6
6AR6G
6AR7GT
6AR8
6AR11
6AS4GT
6AS5
6AS6
6AS7	6AS7G, 6AS7GA, 6AS7GT, 6H13C, 6N13S, 6N5S, 6520, A1834, A4475, ECC230, CV2523
6AS7G	6AS7, 6AS7GA, 6AS7GT, 6H13C, 6N13S, 6N5S, 6520, A1834, A4475, ECC230, CV2523
6AS7GA	6AS7, 6AS7G, 6AS7GT, 6H13C, 6N13S, 6N5S, 6520, A1834, A4475, ECC230, CV2523
6AS7GT	6AS7, 6AS7G, 6AS7GA, 6H13C, 6N13S, 6N5S, 6520, A1834, A4475, ECC230, CV2523
6AS8
6AS11
6AT6
6AT8
6AT8A
6AU4GT
6AU4GTA
6AU5GT
6AU6
6AU6A
6AU7
6AU8
6AU8A
6AV4
6AV5GA
6AV5GT
6AV6	EBC91
6AV11
6AW6
6AW7GT
6AW8
6AW8A
6AX3
6AX4GT
6AX4GTA
6AX4GTB
6AX5GT
6AX6G
6AX7	6N2, 6N2P, 6H2N, 6N2J, 6N2P-EV, 6N2P-EB, 6N2pi, 6SS41
6AX8
6AY3
6AY3A
6AY3B
6AY5	6P6S, 6V6, 587
6AY11
6AZ8

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