On Sep 24, 2:42 pm, Frank Gilliland
wrote:
So you claim it doesn't work because one diode will "hog" the current?
Well, that's the point! D1 "hogs" the current and establishes a fixed
voltage for the base of TR1!!!

As usual Frank you are missing the important point here. That point
being that you can't simply parallel two diodes... and have them share
currents. This would have to be done in order for any tracking between
the two. The problem is that one diode will always turn on before the
other... and take all current. Now I ask you... where is the sharing/
tracking in that scenario? The answer is: there is no sharing/
tracking... because one diode with the lowest drop will hog the entire
current... and the other diode will be off. this is why the gentleman
on the web page link that YOU provided says it that scheme works like
crap. He's absolutely right!
www.telstar-electronics.com