What were a tube radio with a dark round
hole instead of a nice green shining tuning eye!
Many types are hard to obtain and are also expensive. Having spent a lot of money for a tube there still remains the limited life expectancy.
- When I switch on my radio then the new and expensive tuning eye wears out - The joy is damped!
considerations lead to the development of a clone. Inside the
original bulb with the original base an electromechanical
part is located.
From the front side the original reflector and cap are visible. The light source is a modern LED. Control is done with a microcontroller.
The segment size continuously changes according to the control voltage. All round types can be replaced.