You are simply correct ! Ulrich
Sent from my iPhone > On Jan 7, 2018, at 11:05 AM, Arnold Tibus <[email protected]> wrote: > >> Am 07.01.2018 um 16:33 schrieb jimlux: >>> On 1/6/18 6:12 PM, Dana Whitlow wrote: >>> One point about oscillator design I've not yet seen mentioned is this: the >>> limiter >>> must not degrade the resonator Q when in action. Hence, a pair of diodes >>> connected in parallel back to back, across a shunt resonator, would be a bad >>> thing to do from the perspective of low phase noise. A differential >>> amplifier >>> that limits by running out of current on peaks, driving a shunt resonator, >>> is >>> a much better way even though one pays a price in having more transistor >>> noise in the circuit. >>> >>> I've long wondered if a very slow AGC might avoid the nonlinear mechanisms >>> issue except, of course, for things happening within the AGC loop's >>> bandwidth. >>> >> That's the Wein bridge stabilized by a light bulb, popularized by Messrs >> Hewlett and Packard a while ago. >> _______________________________________________ >> time-nuts mailing list -- [email protected], >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > Hello everybody, excuse me please, > > but I see quite often mentioned the 'Wein bridge'. (Wein in german is 'vino' > or 'wine' ;-) > Not of real technical importance, but shouldn't this not be correctly called > a 'Wien bridge'? > As I know that this tricky circuit was developed by Max Wien in 1891. > Max Karl Werner Wien was a German physicist and the director of the Institute > of Physics at the University of Jena at that time. > (sorry, I am a nut ;-) ) > > My best wishes for 2018 to everybody, > > Arnold, DK2WT > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
