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RE: Your parallel combination = 666.6 Ohms




Correct.

I am using a 1K and 2K resistors in parallel.

They measured 675 ohms in the circuit.

Glad to see that you were paying attention.

I needed to lower the Rk so I could get enough compliance voltage on top of the C4S to set the current source to 5ma.

Since I use a pot to trim the current setting resistor, selecting a higher value Rk was not a problem.



DT 667


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