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Which tuner to get and getting the most from it. Thank God, for the radio!

RE: That makes sense...

Hi sherod,

If you have a decent multimeter you can get close enough. pull the caps and measure their capacitance. It wouldn't surprise me that one or two will be off spec. Do the same for the resistor. the calculation is pretty straight forward.

To calculate the time constant for each channel you need to know the R in Ohms and the C in µf. Using the schematic values. 3 X .0039 = .0117, then .0117 X 6200 = 72.54µs. You're just trying to get close to 75µs.

Once you know the actual values you can calculate and correct as required.

Use poly styrene or propylene for replacement caps and a metal film for the resistor.

Have fun!


Hope that makes sense.

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