Digikey parts list for RTTY demodulator
This includes most parts for 20 units, but the "expensive"
components for only 10 units, so as not to waste too much
money overbuying. 

1	20	MCP1702-5002E/TO-ND	IC REG LDO5V 250MA TO-92-3	0	0.48000	$9.60
2	10	NJM2211D#-ND	IC FSK DEMOD/ TONE DECODER 14DIP	0	3.24000	$32.40
3	10	HSR312-ND	OPTOCOUPLER SSR 250V 6DIP		0	3.02300	$30.23
4	20	497-3110-ND	MOSFET N-CH 60V 350MA TO-92		0	0.28800	$5.76
5	20	A100203-ND	CONN IC SOCKET VERT 6POS TIN		0	0.11400	$2.28
6	20	A100205-ND	CONN IC SOCKET VERT 14POS TIN		0	0.12100	$2.42
7	40	478-3176-ND	CAP CER 4700PF 100V 10% RADIAL		0	0.19600	$7.84
8	20	399-4287-ND	CAP .022UF 100V 20% CER RADIAL		0	0.21900	$4.38
9	60	478-3192-ND	CAP CER .10UF 50V 20% RADIAL		0	0.11900	$7.14
10	20	BC1151CT-ND	CAP 1.0UF 25V CERAMIC +80/-20%		0	0.43500	$8.70
11	20	493-3286-ND	CAP ELECT 10UF 50V HIREL RADIAL		0	0.29000	$5.80
12	50	CF14JT22K0CT-ND	RES 22K OHM 1/4W 5% CARBON FILM		0	0.02880	$1.44
13	100	CF14JT470KCT-ND	RES 470K OHM 1/4W 5% CARBON FILM	0	0.02190	$2.19
14	50	CF14JT1K00CT-ND	RES 1K OHM 1/4W 5% CARBON FILM		0	0.02880	$1.44
15	50	CF14JT220RCT-ND	RES 220 OHM 1/4W 5% CARBON FILM		0	0.02880	$1.44
16	50	CF14JT100KCT-ND	RES 100K OHM 1/4W 5% CARBON FILM	0	0.02880	$1.44
17	50	CF14JT4K70CT-ND	RES 4.7K OHM 1/4W 5% CARBON FILM	0	0.02880	$1.44
18	50	CF14JT220KCT-ND	RES 220K OHM 1/4W 5% CARBON FILM	0	0.02880	$1.44
19	100	A98036-ND	TERM BLOCK 2POS SIDE ENT 3.5MM		0	0.22680	$22.68
20	25	754-1245-ND	LED SS 3MM 625NM RED DIFF		0	0.07240	$1.81
21	20	365-1173-ND	LED 470NM ROUND BLUE 3MM		0	0.34000	$6.80
22	10	EG2355-ND	SWITCH TOGGLE SPDT 5A PC MNT		0	2.36600	$23.66
23	10	CT94EW502-ND	POT 5.0K OHM SQ CERMET TOP		0	1.20500	$12.05