Radio Road

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

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Original Message

RE: That makes sense...

Posted by HoosierAudio on June 24, 2016 at 08:10:24:
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 �f. Using the schematic values. 3 X .0039 = .0117, then .0117 X 6200 = 72.54�s. You're just trying to get close to 75�s.

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!

HA

Hope that makes sense.