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My White noise Amplifier has 2 x 10 000mf 63v main supply caps bypassed with .1 polyprops.Poss and neg rails .The main circuit board also has 2 x 100 mfs(poss and neg)each bypassed with .1 polystyrenes right near the Mosfet output devices.
I actually upped them to 220MF Silmics and left the .1mf s alone.
Would the convential wisdom be to put back the 100Mf or swap the bypass .1s for .22..
Or can I use 2 x 100mfs instead of the 220?.
Thanks
Follow Ups:
The idea is to have smaller caps handle a smaller range therefore being more responsive. The ideal is supposed to be original cap bypassed by a cap 10% of the value of the original. Then you may bypass the bypass cap with a cap that has a 10% value of the bypass cap; and so on; and so on.I have heard results bypassing 10,000 MFD caps with 5 MFD polypropylenes. In answer to your question you won't hurt anything by adding the 220 MFD back in the circuit. You may (or may not) hear a fuller bass.
Based on my experience, you may hear subtle changes in the sound with the addition of each bypass capacitor.
So, please, let us know what you hear based on the various mods.
DaveT
Hi and thanks/yes the 220 are still in situ... Ive been bypassing for over 40 years usually using 1 percent ratio, I even use silver Mica or polystyrene to finish the bypass.
Somewhere in my past I remember picking up some advice about being carefull and its something to do with phase angle and impedance that comes into the equation....
I only spotted the substition (and then remembered I had done this) when I was looking at adding the spare stillpoints cloth to the amplifier.I already bypass the Shottkies and stealths with snubber caps and was looking at shielding the bridges.
I'm sorry I don't have answer for your more complicated question. I am sure the inductance may be impacted, but how I can't answer. Even then it may be circuit dependent i.e. what type of circuit the bypasses are being used in.
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