The criteria for selecting input tubes also apply to power tubes:
super manufacturing technology and rigorous quality control.
For example, tubes such as 6L6, made in USSR, have been Flagship tubes ever since the 50's. For over 60 years the manufacturing experience with these tubes has established the best possible reputation for the highest quality standard.
Tube technology characteristics
TOR-surface technology for the cathode emitter
Special shape design and materials used for the tube plate (nickel carbonization)
Specially designed filament heater structure
Gold plated electron grids
Punching technology for grids' manufacturing
High resistance tube bulb glass
Power output tubes
G807 / 807
6P42C/ EL 500
AUDOLICI's products use mainly electron tubes made in USSR/Russia. There are two categories of electron tubes that are used: input tubes and power output tubes, both selected with individual strict criteria.
The most important criteria is to make sure of the origin of the components. We only use tubes from suppliers that are top quality manufacturers, based on super tube technology, which means they assure the highest quality- Reflector/ Sovtek; Svetlana / SED; Kaluga. Every tube has passed rigorous quality control military standards. As a result of this rigorous selection, our products have minimum level of microphonic's effect, the best signal/noise ratio, the best reduction of external artifacts and environmental disturbances. The quality of the glass and of the vacuum allows each tube the maximum life time, which is a clear advantage over other intemational manufacturers.
ECC82 FRT NOS Germany made ,1968 40€, unit__
6L6 GC "C" Svetlana made , 2000 186€, par_
ECC802 TESLA NOS 1972 54€, unit___
E 83 CC TESLA NOS Gold pin , 1974 96€, unit__
6H7C USSR made , 1976 40€, unit__
6H9C USSR made ,1978 30€. unit__
G 807 USSR made ,1972, 65€, unit__
We do maintenance, upgrade and provide valves for all products.