THE GREAT MULLARD MAGIC BLOG — cv6091
THE MULLARD WORLD SERIES VALVES (vii) - DUAL TRIODE ECC81 -
Posted by STEVE M on
Well, we're going to talk about the ECC81 twin triode today, originally designed for TV applications, yes, that's right - TV!!!! All the other valves we have discussed in this World Series of blog entries had been designed for use at the then used British TV frequency bands of 45 - 70 MHz. However, other countries used carrier frequencies at a much higher range within the 100 - 300MHz region at which a low noise level high grade triode would be needed so enter stage left.... the ECC81. The ECC81 was great because it was inherently a 'low...
- Tags: a2900, cv6091, ECC81, MULLARD, TWIN TRIODE