ECC99 JJ Tesla Tube A new tube recently introduced by Tesla/JJ, combines electrical characteristics similar to 7119/E182CC (high transconductance and low plate resistance) with a pinout the same as 12AU7/ECC82 or 12BH7. Can be used in place of 12AU7 or 12BH7 in certain applications (like our Dynaco boards).
6N1P Russia Tube - A tube with characteristics similar to (lower Gm and more filament current) 6922 and 6DJ8. Note that ALL 6N1P are made by the Voskhod factory no matter how they're labelled & marketed in the USA!
6H2P 6H2N -EB 6N2P Russian Tube 6H2P-EB tube of the type used in Red Bear guitar amps. Except for the 6.3v only filament, this tube has pinout and characteristics similar to 12AX7/ECC83. Sometimes called 6N2 (Russian H = English N)
6H30PI SOVTEK Tube A tube released by Sovtek, frame grid tube with characteristics reminiscent of E182CC, with a very low plate resistance. Used in certain models of BAT preamps.
6H30 PI
Super linear-military, mid mu dual triode preamp/driver
Winged-C 6P1P-EB Tube Quality Russian made 6P1P. Electrical equivalent to the 6AQ5 / EL90, though the pin-out differs.
Tube Amp Doctor EF86 / 6267 The Tube Amp Doctor EF86 / 6267 is a low noise and low microphonic version of the vintage pentode. EF86 6267 tubes were famously used in classic HiFi equipment and microphone preamps. The original Vox AC15 circuit also used an EF86. Our ST70 Driver board also uses EF86 tubes.
The TAD EF86 / 6267 meets all of the standards of the Tube Amp Doctor Premium Selection process. This tube has a rugged construction with a perforated shield. The TAD EF86 / 6267 will work in any EF86 or 6267 position.