On Sun, 23 Sep 2007 06:06:02 -0700, Telspam Electronics
wrote in
. com:

On Sep 23, 4:34 am, Frank Gilliland
wrote:
I also agree with his
statements about the diode method used for tracking. That method works
a little better than no tracking and is not worth the effort.
Yet you used it in your previous amps. You even defended the design,
which is when I posted the link above. It wasn't long afterwards that
you came up with your last hack job.
This is
because putting two diodes in parallel never works right. One always
has a lower drop... and hogs.
I don't see two diodes in parallel. Time to lay off the sauce, Brian.

Frank... I didn't say the diode scheme didn't work... I said it didn't
work well. Actaually, the Motorola RF Data Manual shows this scheme in
many of their designs... so maybe you give them a call and let them
know how foolish they are... lol
But seriously, the diode thing isn't worth the trouble unless you are
willing to hand-select components that go alaong with that circuit.
Even then, it's certainly not the best method. By the way... the diode
tracking scheme does try and use two diodes in parallel. Sorry you
don't see that... but that's how it is... and why it doesn't work
well.


I checked the page again thinking maybe it changed, but I still don't
see two diodes. Just one. What two diodes are -you- seeing, Brian?