Jim Lesurf wrote:

In article , Ian Bell
wrote:
Don Pearce wrote:


I plan to. I had hoped some of the leading lights on this group would
have done this already. I find it hard to believe I am doing pioneering
experiments. Crikey, I might even publish the results on a web site ;-)

I doubt you are 'pioneering'. If you look back at journals and texts
published before about 1960 you may well find what you require. However I
suspect that engineers lost interest in what you are asking about some
decades ago. Simply easier to get low noise with solid state devices in
most applications. I doubt many modern texts discuss 'coherers' as
alternatives to Shottky diodes, either. ;- But you can find them in
older books.


Agreed, but valve preamps are surprisingly popular.

FWIW If I get a chance I'll do a search through my old JAES papers and see
if any deal with what you want to know. They may cover it in the early
volumes.


That is very kind. Many thanks.

Ian
Slainte,

Jim