On Thu, 01 May 2008 11:25:12 -0400, Michael Black wrote:

On Thu, 1 May 2008, geek wrote:

Hi,

snip

Alternatives are the 6JH8 and 6ME8, which are less expensive and more
common.

I've done some experiments with the 6ME8 and it's horribly noisy compared
to the 7360.... or even a 6BE6 for that matter :-\

You're not going to get a balanced mixer out of a single 6BE6 either.

But, on does have the advantage that beam deflection tubes aren't just
used as first mixers. Balanced modulators and mixers in SSB transmitters.
Product detector in a receiver. There, noise isn't the same issue
as in a first mixer.

Michael VE2BVW

Indeed!

My tests were based on the first mixer for a SW receiver (gah, which I
have still to build . )

Cheers!
__
Gregg