[sdiy] sources of hum and hiss in a solid state guitar amp (LM1875) (slightly OT)

Ken Stone sasami at hotkey.net.au
Sun Aug 13 00:29:54 CEST 2006


>Try swapping all the resistors for metal film first, ESPECIALLY in the 
>preamp. You might be totally
>surprised.

I did this in my noisy old Wurli piano. The result - dead silence.
Absolutely amazing. It is worth while using 1% metal film for everything
these days.

Ken
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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