Cossor P1 Valve

Cossor P1 Valve

Post by Be » Fri, 31 May 2002 01:41:25



I have found a boxed and working Cossor P1 Valve in my loft and was
wondering if there was a market for it at all.

Also, I have found a Marconi Rectifier U31 and have a similar
question.

Thanks in advance for any help
Ben

 
 
 

Cossor P1 Valve

Post by Kenneth Schar » Fri, 31 May 2002 23:19:34


Quote:

> I have found a boxed and working Cossor P1 Valve in my loft and was
> wondering if there was a market for it at all.

> Also, I have found a Marconi Rectifier U31 and have a similar
> question.

> Thanks in advance for any help
> Ben

IIRC some of the cossor valves were attempts at a non patent infringing
design.  I think they had a
plate shaped like a 'hat' and curved grids and filaments.  If these are
the ones I am thinking of
(to bad my copy of '70 years of tubes and valves' is packed up at the
moment) they are probably quite
rare and might be worth something.  I've NEVER seen one on ebay yet.

 
 
 

Cossor P1 Valve

Post by Tim » Sat, 01 Jun 2002 06:47:36


Wow! That is absolutely amazing. I have never seen one before. Can you
post some pictures on the binaries or a link here?
Quote:

> I have found a boxed and working Cossor P1 Valve in my loft and was
> wondering if there was a market for it at all.

> Also, I have found a Marconi Rectifier U31 and have a similar
> question.

> Thanks in advance for any help
> Ben