PCL806 valve

[boater sam]

What, pray, is a PCL806 and what was it for? I have never seen one before and can find no reference to it either.

[Tedzed1]

Never come across one either, but I have got a PCC806 in my collection.

http://www.r-type.org/exhib/aad0300.htm

[Ian E G7OLT]

PCL805 were common towards the end of valves being used in the frame stage of B&W TVs. I understood at the time that they were improved versions of the PCL85. I suspect the same applies to the PCL806 just being a later version of the PCL86. 

PCL82 and PCL86 were commonly used as audio output valves and PCL84 were used in the RGB (R-Y. G-Y, B-Y) colour output stages.