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Electronic Valve - Philips, Dual triode, Type 6BQ7A, 1962 Reg. No: ST 032585
- Designed for use as a cascode amplifier in television tuners. Known as ECC180 in Europe.
The cascode circuit uses two triodes with one as a common cathode stage feeding the other as a grounded grid stage. The cathode of the second stage is connected directly to the anode of the first stage so that the two triodes are in series.
The main advantage of the cascode circuit is that it gives the low noise of a triode without the need for neutralisation.
Manufacturer: Philips, Hendon South Australia
- Tubular glass bulb with exhaust tip and 9 pin miniature base.
- Acquisition Information:
- Unknown from Unknown, 1981
|Dimensions:||55 mm (Length), 20 mm (Diameter)|
|Tagged with:||thermionic electron valves, 6bq7a|
|Themes this item is part of:||Engineering Collection, Information & Communication Collection|
|Secondary Classification:||Vacuum Technology|
|Inscriptions:||Bulb: 6BQ7A/Miniwatt/MADE IN AUSTRALIA/ODC21
Paper label on bulb: 6BQ7A
|Manufacturer:||Philips Electrical Industries Pty. Ltd., Hendon, South Australia, Australia, 1962|