Summary

Designed for use as a mixer and oscillator in television tuners. Known as ECF82 in Europe. The triode section was used as the local oscillator and the pentode was used at the mixer. Although originally designed as a television tuner frequency changer, this valve was widely used for general purpose applications where a triode and pentode were required.

The 4X inscription is the Philips code for this type, indicating Philips manufacture. Unfortunately the rest of the code is illegible so the actual factory and date cannot be determined.

Manufacturer: Philips, location unknown, probably Hendon South Australia.

Physical Description

Tubular glass bulb with exhaust tip and 9 pin miniature base.

More Information