Outer foil orientation
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Analog Assassin
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- Joined: Mon May 14, 2007 11:15 pm
Outer foil orientation
Assuming you can find, or if your caps have the outer foil orientation marked, where do you connect the outer foil to? On a Marshall plexi-style amp, for example, on the tone stack, would the outer foil lead to ground? Cathode bypass cap, outer foil to ground? Coupling caps?
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martin manning
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Re: Outer foil orientation
Connect it to the node with the lowest impedance to ground. Usually that will be "up-stream" in the signal flow, unless the cap itself is connected to ground at one end.
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Cliff Schecht
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Re: Outer foil orientation
In general you connect it to the lowest impedance point between the two terminals. For gain stages this means pointing the outer foil at the node between the plate/plate resistor and the non-foil side towards the next stages input. For filters and such this means pointing the foil towards ground.
Cliff Schecht - Circuit P.I.