12DW7 - 7247 - ECC832
The 12DW7 is a fairly obscure tube that several amplifier manufacturers used in the past. The tube is essentially one-half 12AX7 and one half 12AU7 with unbalanced triodes. It makes a lot of sense to use in circuits with limited space.
Compatible and/or equivalent tubes: 12DW7, 7247, ECC832.
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New Matched Quad (4) Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes
Electro-Harmonix
$168.65New Gain Matched Quad of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this dual triode. • New design of excellent quality •...$168.65 -
New Matched Pair (2) Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes
Electro-Harmonix
$85.95New Gain Matched Pair of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this dual triode. • New design of excellent quality •...$85.95 -
New Electro-Harmonix 12DW7 / ECC832 Vacuum Tube
Electro-Harmonix
$41.56New Gain Tested Electro-Harmonix 12DW7 / ECC832 Vacuum Tube Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this dual triode. • New design of excellent quality • Relabeled...$41.56