[Amps] Linearity metering

[Jason Buchanan]

I noticed in the 1972/1973 ARRL handbooks that I have there is a 4-1000A 
amplifier project with a linearity metering circuit.  Look for the 
SS-2000 project.  This seems like an incredibly good idea, however I 
have never seen anything like this in any other amplifier except for 
something similar apparently in the ACOM 1000A (and presumably the 
2000).  It seems to me that the ability to tune for optimum linearity 
would be a "Good Thing"(tm) and the circuit design appeard to be simple 
to implement.

Was the original designer of this circuit blowing smoke or is this 
something worthwhile to add to a homebrew amp?


73 Jason N1SU