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From: "Don" <g@crcomp.net>
Newsgroups: sci.electronics.design
Subject: Re: Current mirror version of the lowish distortion 1kHz sine wave osillator
Date: Wed, 15 Jan 2025 19:47:47 -0000 (UTC)
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Edward Rawde wrote:
> Bill Sloman wrote:
>> This just reworks my circuit to use a controllable asymmetric current mirror instead of the FET for gain control. I take the
>> feedback from the full wave rectifier and switch every half-cycle to reconstruct a variable amplitude sine wave to control the
>> output amplitude. It does use a lot of components, but it strikes me as fairly comprehensible.
>>
>
> First I corrected the usual line wrap issues.
>
> In the latest LTSpice (24.1.0) it took me a good hour or two to find out why I was getting strange netlist errors for all the opamps
> in the circuit.
>
> This turned out to be .ENDS in the BAS70L model. Remove .ENDS and the issues go away.
>
> So this is the circuit I'm simulating in 24.1.0 with no component updates available.
> I'm expecting it to take 2 hours to complete.

Thank you for your tip to wait 2 hours for results. For what it's worth,
Bill's original LTSpice source worked for me "as is."

Danke,

-- 
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.