Sorry, but it makes no more sense now than it did previously - a vastly overcomplicated circuit with poor performance, where's the advantage?Oooh... another chance for me to plug one of my favourate circuits?
Perhaps the circuit I use here would be of use - a two transistor phase-shift oscillator with Wien-bridge style amplitude control. It gives THD around 1% is seem to remember.
Never seen itNG
I've been reading through your ESR meter posted detail .. .. can't see any problem, as you say, much more straightforward.
Are you aware there has been a revised version published in 2004 ? Some variations ... .. some of the obsolete components have been upgraded; only one battery used;
Basically, looks the same to me .. .. any comments ?
Yes, thanks Nigel, good to get my thoughts confirmed .. !Dropping to one battery and removing the bulb make it easy to build, but it's essentially the same project with minor changes.
I must confess that concept is slightly alarmingBasically looks nearly identical to me