Steve, also you missed C522 which is in parallel with L512.?
Ron
On Wed, May 29, 2024 at 09:51 Tisha Hayes, AA4HA via <Tisha.Hayes=
[email protected]> wrote:
Steve,
Agreed, those input/output impedances have bitten me in the behind before; I had an engineering manager who believed that the software model was 'more accurate' than what we built on the bench and if the results were different it was because we were incompetent at actually building a circuit. Thankfully he was not long for the engineering-world and was quickly "promoted" to sales.
Like Hans had indicated, a model is a reasonable starting point but it eventually turns in to an exercise where the designer is hand picking components that are close in value and inserting them in to the circuit to come up with the accurate values.
You should look up the reference to something called a "gimmick capacitor". Sometimes I work on old radios and find one left behind; It is humorous when some other restorer either cuts it out or just solders the two ends together.
--
Tisha, AA4HA
Ronald Taylor