W
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- Jan 1, 1970
- 0
Eeyore said:Reliably over 10 decades ?
Two stages of AGC amp, then, each spanning five decades (the
logarithm function is accurate to 6 decades in most transistors,
and to eight decades in low-noise types). You cascade two
stages and there's your AGC module.
Yes, of course it's reliable.
As for temperature effects, these aren't power-hungry, you just monitor
the
temperature and correct (there was a microprocessor involved), or even
thermostat-stabilize it.