Demonstrates how to create a WP 34S programmable RPN scientific calculator based on an HP 30b business financial calculator.
Components:
32 kHz clock crystal: Citizen part CMR200T-32.768KDZF-UT
18 pF 0603 capacitors: Kemet part C0603C180J5GACTU
Overlay: http://commerce.hpcalc.org/overlay.php