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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Programming Languages
Date: Sat, 2 Nov 2024 17:05:20 +1100
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On 2/11/2024 12:01 pm, Edward Rawde wrote:
> "Cursitor Doom" <cd999666@notformail.com> wrote in message news:vg3575$3bio0$1@dont-email.me...
>> You can call me old fashioned, but I still believe there's never been a
>> more elegant computer language than the original K&R C. You can keep the
>> rest; I'll stick with that.
> 
> Having just got back from a vacation I thought I'd give my input to this before looking into whether it's worthwhile getting back
> into sinewave oscillators.

John May has come up with a much better sine wave oscillator than yours. 
It also has more components, and I'm not sure that all of them are 
strictly necessary. Getting deep enough into the design to be sure where 
the harmonics are coming from is going to be difficult. I think I'm 
getting there, but I'm not all that motivated to put in the rest of the
work.

One obvious point is that a FET channel isn't a perfect resistor - as 
the voltage across it rises above zero it starts looking more like a 
constant current diode (and you can buy FET-based constant current diodes).

In theory, if you added a second harmonic component to the FET gate 
drive you could make it look like a resistor over a wider range of 
voltage, if the phasing was close enough to right.

You've also got the point that when there's a voltage drop across the 
FET channel, it adds to the gate-to-channel voltage (as has been 
mentioned here) and you can cancel that with an in-phase fundamental 
component

-- 
Bill Sloman, Sydney