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Date: Fri, 24 May 2024 14:02:23 -0400
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Subject: Re: An actual circuit
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On 5/24/2024 2:00 PM, bitrex wrote:

>> Yes, it is mysterious. Set both drain resistors to 3.3K and zoom way
>> up on the two source voltages for the first 20 seconds.
>>
>> LT Spice may have some hidden asymmetry. It has to do math
>> sequentially, maybe.
>>
>> In real life, parts will be plenty asymmetric. Especially jfets.
>>
> 
> There are  bunch of variants of this circuit, I call it the "Forest Mims 
> Oscillator" cuz in one of his radio shack circuit books was where I 
> first remember seeing it as a teenager.

I'm pretty sure he didn't invent it though and that I've seen it in 
books from the 60s also, it was probably invented about 5 minutes after 
the PNP.