LM13600

[Haible Juergen]

	>Aha....
	>
	>The LM13700 has NPN darlington with QZ (beta 266) feeding QY (beta
50) : Product = 13300
	>
	>The LM13600 has NPN darlington with QX1 (beta 200) feeding QY (beta
140) : Product = 28000
	>
	>So the maximum gain of the LM13600 is about twice that of the
13700.
	>I presume the LM13600 current mirror will reduce the gain of the
buffer as the Gm bias goes up.
	>
	>Very Cool, yes ???
	>
	>:^) Harry Bissell


Thanks for digging this up. The difference looks not that big from these
parameters, though.
I'm no expert on this, but the beta of each transistor would also go down
for small currents.
This might have some effect, too.

JH.