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previous: marrk Re: Thanks again R.G.and Trace Allen for the great TS9 mod info..... -- 2/27/2000 3:46 PM View Thread

Found an early 80's Sanyo EQ that was loaded with the RC4558's

2/28/2000 12:10 AM
John S.
Found an early 80's Sanyo EQ that was loaded with the RC4558's
I guess I got lucky.....The EQ had 8 of these RC4558 OP AMPS on the circuit board...I don't know how much tonal difference there is between the TA 75558 chip and the RC 4558,but at least I feel good knowing that the 4558 is in my reissue pedal now......I soldered in an 8 pin IC socket then popped the 4558 into the socket....If I want to try the TA 75558 chip again,I just remove the one chip and substitute for the other.....Thanks for all of the help on this guys.......I'm Screamin'!!!!! John S.

 
Replies:
John S. Messing with tonal difference between TI RC 4558 and JRC 4558 Chips -- 2/28/2000 10:04 PM