On Fri, Apr 11, 2025 at 08:15 AM, Richard Hattaway wrote:
I have found that IC401 is essentially not available to the experimenter at this time, except from Amazon with long lead times.
I also found this - and looked at the newer cs4344 chip.? It is 10-pin rather than 8-pin, but the 'top' 8 pins are pin-compatible with the 4334.? I am considering experimenting with this chip.? On the QMX+, there is (barely) room to solder it in place of the current chip, and add the requisite capacitors to the two new pins.
Stan KC7XE
