All new JJ Electronics tubes start with a 24hr burn-in, and are stringently tested for low noise, low microphonics, leakage, and screened for static and dynamic characteristics. Power tubes are tested using Amplitrex testers at real world high voltages, driving an external amp, and power amp tube pairs are also matched. Rectifier tubes are screened for forward/reverse voltages, leakage, and peak current handling (hot-switch and inrush current).
JJ Electronic preamp tubes, all burned in, low noise, low microphonics, and screened for leakeage and dynamics.
JJ Electronic power tubes, all with 24 hour burn in and tested at high voltage, and screened for low noise, leakage, and dynamics, and matched
Texas Tone® JJ 6V6S and 6L6GC Power tubes are built Double Mica spacers in the top of the tube to reduce rattle in combo amps.
JJ Electronics rectifiers, pre-tested for full inrush current
JJ 12AT7 and 12AU7, all tested for low noise and low microphonics, and balanced triodes for phase splitter use.
Tung-Sol 12AX7 New Production, selected for low noise and microphonics
Electro-Harmonix 12AY7, 12AT7, 12AU7, selected for low noise and microphonics
Mullard 12AX7 New Production, selected for low noise and microphonics
Vintage Tubes
New Old Stock (NOS) and slightly used vintage vacuum tubes. If it's listed here, it's in stock. Inquire at:
for quantities on hand or to place an order.