http://effectslayouts.blogspot.com/2017/03/carl-martin-plexi-tone.html
Thinking about building that but was wondering regarding the LT1054 would i be able to
substitute a icl7660s for that. basing on the pinouts it looks like its a direct replacement
any inputs greatly welcomed and grateful for.
I believe the function of pin 1 is different in each chip. It's unconnected in this schematic using the LT1054. If you use the 7660S, then you need to connect pin 1 to pin 8 to avoid an audible whine.
Thanks for the reply
I really sorta want to build this one but the charge pump things got me worried.