IC1:
	LE33 ABZ
	ELFA: 73-054-85
	3.3 V Vreg
Q1, Q4:
	2N7000
	ELFA: 71-002-17
	N-Chnl Enhcmnt MOSFET
Displays (U$1, U$2):
	Everlight ELS431SURWA
	2.9 mcd @ 2 mA
	ELFA: 75-507-67
Rotary encoder (U$3):
	Alps EC11B-20244
	ELFA: 35-846-20