Replaced ICs in RD112 100
Replaced ICs in RD112 100 |
Music Man Amps Discussion Forum » Solid State Devices & Substitutions » Replaced ICs in RD112 100
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Rob Flindall (flinly) Username: flinly Registered: 12-2012 |
Further to my other posts I got the bug again to mess around with the ICs in my RD112 100 (June 1981 build date) after visiting an electronic supply shop that opened up near me. (Sayal electronics). |
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Rob Flindall (flinly) Username: flinly Registered: 12-2012 |
I replaced all of the TL072 with a variant of JRC4558 chip. This seems to be a good sounding replacement option. The amp sounds a bit quieter,less hiss at lower gain settings and low volume. The bass notes seem to last longer and sound better. |