OK, one another thread I came up with this...
to which eblc1388 wrote...
The transistor power dissipation is a problem, but that would be a failure mode (as in letting the smoke out).
Gain is the possible answer. I figure a β would be around 100 or so, but is the software showing less, or am I missing something obvious? I wonder if they were Darlingtons and the bias adjusted accordingly whether it would make a difference? I think the output for 50Ω is pretty decent overall.
BTW, thanks EB.
to which eblc1388 wrote...
I like learning about this kind of stuff. It is said you learn more from failures than successes. So why would this circuit fail to feed 50Ω with unity gain?eblc1388 said:I simulated the circuit and found that it cannot cope with output loading of less than 56Ω. Any loading less than 56Ω would result in lower output voltage.This circuit has no gain, but it will change the output impedance from 600Ω to an ohm or less. I've never build it, but it should work.
The red trace is output with loading of 1Ω, yellow trace 3Ω...etc...
Just so you would want to know about it.
The transistor power dissipation is a problem, but that would be a failure mode (as in letting the smoke out).
Gain is the possible answer. I figure a β would be around 100 or so, but is the software showing less, or am I missing something obvious? I wonder if they were Darlingtons and the bias adjusted accordingly whether it would make a difference? I think the output for 50Ω is pretty decent overall.
BTW, thanks EB.