Introducing my all valve pre amplifier, below. This photograph was taken the moment the pre amp had been completed and tested.
Below shows the top of the pre amp with the selected channel illuminated.
The valves in action. EF86 RIAA stage and 6N1P equaliser and Tone control System. All valves are selected and balanced for optimal performance.
Below is the front panel. There is a rotary selector switch for any required input from an RIAA phono stage to DVD Audio. All controlled through a +-18db tone control with rotary controls.