GAA's Tweed Princeton Clone BOM

5F2-A Princeton with following changes:

Replace Fender PT & OT with Hammond

SS Rectifier instead of 5Y3, substituted lower voltage PT

Slightly different power supply chain (33uF->120/5W->22uF->5K/2W->22uF->15-20K->10uF)

Standby switch added

Pot for variable negative FB

Replace grid resistor with 250K pot for master volume

Eliminate Mic input

Hum balance resistors for filament

Part Price Qty Supplier or Mouser Part #

1 Hammond Chassis 1 9.90 STF 10x6x2

2 270DX PT 39.50 1 39.50 STF 275V@90mA, 6.3V@3A, 5V@3A

3 125E OT 30.50 1 30.50 STF

4 Octal Socket 2.25 1 2.25 STF

5 9 pin socket 2.35 1 2.35 STF

6 AC Jack 1.00 1 1.00 161-0707-1

7 1/4" NS jack 2.25 1 2.25 502-11 Speaker jack

8 1/4" jack 2.50 1 2.50 502-12A Input jack

9 1MA pot 1.25 2 2.50 31VJ601 Volume, tone

10 Pilot Light 3.18 1 3.18 606-5100-822

11 Lens 0.50

12 6.3V lamp 0.38 1 0.38 606-CM47

13 Fuse Assembly 2.00 1 2.00 5767-345321

14 Fuse 1A 0.83 1 0.83 5760-13001

15 Switch DPDT 3.00 1 3.00 10TE007 Power switch

16 Switch SPST 3.00 1 3.00 10TE006 Standby switch

17 Gnd lugs 0.12 5 0.60 534-918

18 33uF/475V 2.94 1 2.94 140-XAL450V33

19 22uF/475V 2.10 2 4.20 140-XAL450V22

20 10uF/475V 1.29 1 1.29 140-XAL450V10

21 22uF/50V E 0.25 2 0.50 140-XAL50V22

22 10uF/50V 0.25 2 0.50 140-XAL50V10 Alternate cathode caps

23 .02uF/400V 0.21 2 0.42 140-PF2G203K

24 500pF/500V 0.14 1 0.14 140-CD500F6-501M

25 .005uF/500V 0.18 1 0.18 140-PF2G472K

26 1M 0.12 1 0.12 281-1.0M

27 220K 0.12 1 0.12 281-220K

28 100K 0.12 2 0.24 281-100k

29 68K 0.12 1 0.12 281-68k

30 22K 0.12 2 0.24 281-22k

31 4.7K 0.12 1 0.12 281-4.7k Option: replace 22K feedback with 4.7K+100K pot

32 100K pot 1.25 1 1.25 31VA501

33 470/1W 0.12 1 0.12 281-470

34 1.5K 0.12 2 0.24 281-1.5k

35 250K A pot 1.25 1 1.25 31VA503 Replace 220K grid resistor

36 100R 0.12 2 0.24 281-100 filament balance

37 120/5W 0.49 1 0.49 286-120 voltage drop after 1st cap

38 2K/2W 0.19 1 0.19 282-2.0k screen dropping resistor

39 15K 0.12 1 0.12 281-15k

40 0-10 knobs (4) 1.26 4 5.04 45KN021 Volume, tone, master,feedback

41 12AX7LPS 9.95 1 9.95 Triode

42 6V6 15.00 1 15.00 Triode

Total 150.76

Mouser Total 41.31

Front: in, master,vol, tone, standby, power, lamp

back: AC, fuse, feedback, speaker

Supplier URLs

STF http://www.stf-electronics.com/

Triode http://www.triodeel.com/

Mouser http://www.mouser.com/

By gaa

	Part	Price	Qty		Supplier or Mouser Part #
1	Hammond Chassis		1	9.90	STF	10x6x2
2	270DX PT	39.50	1	39.50	STF	275V@90mA, 6.3V@3A, 5V@3A
3	125E OT	30.50	1	30.50	STF
4	Octal Socket	2.25	1	2.25	STF
5	9 pin socket	2.35	1	2.35	STF
6	AC Jack	1.00	1	1.00	161-0707-1
7	1/4" NS jack	2.25	1	2.25	502-11	Speaker jack
8	1/4" jack	2.50	1	2.50	502-12A	Input jack
9	1MA pot	1.25	2	2.50	31VJ601	Volume, tone
10	Pilot Light	3.18	1	3.18	606-5100-822
11	Lens	0.50
12	6.3V lamp	0.38	1	0.38	606-CM47
13	Fuse Assembly	2.00	1	2.00	5767-345321
14	Fuse 1A	0.83	1	0.83	5760-13001
15	Switch DPDT	3.00	1	3.00	10TE007	Power switch
16	Switch SPST	3.00	1	3.00	10TE006	Standby switch
17	Gnd lugs	0.12	5	0.60	534-918
18	33uF/475V	2.94	1	2.94	140-XAL450V33
19	22uF/475V	2.10	2	4.20	140-XAL450V22
20	10uF/475V	1.29	1	1.29	140-XAL450V10
21	22uF/50V E	0.25	2	0.50	140-XAL50V22
22	10uF/50V	0.25	2	0.50	140-XAL50V10	Alternate cathode caps
23	.02uF/400V	0.21	2	0.42	140-PF2G203K
24	500pF/500V	0.14	1	0.14	140-CD500F6-501M
25	.005uF/500V	0.18	1	0.18	140-PF2G472K
26	1M	0.12	1	0.12	281-1.0M
27	220K	0.12	1	0.12	281-220K
28	100K	0.12	2	0.24	281-100k
29	68K	0.12	1	0.12	281-68k
30	22K	0.12	2	0.24	281-22k
31	4.7K	0.12	1	0.12	281-4.7k	Option: replace 22K feedback with 4.7K+100K pot
32	100K pot	1.25	1	1.25	31VA501
33	470/1W	0.12	1	0.12	281-470
34	1.5K	0.12	2	0.24	281-1.5k
35	250K A pot	1.25	1	1.25	31VA503	Replace 220K grid resistor
36	100R	0.12	2	0.24	281-100	filament balance
37	120/5W	0.49	1	0.49	286-120	voltage drop after 1st cap
38	2K/2W	0.19	1	0.19	282-2.0k	screen dropping resistor
39	15K	0.12	1	0.12	281-15k
40	0-10 knobs (4)	1.26	4	5.04	45KN021	Volume, tone, master,feedback
41	12AX7LPS	9.95	1	9.95	Triode
42	6V6	15.00	1	15.00	Triode
	Total			150.76
	Mouser Total			41.31

	Front: in, master,vol, tone, standby, power, lamp
	back: AC, fuse, feedback, speaker

Supplier URLs
STF		http://www.stf-electronics.com/
Triode		http://www.triodeel.com/
Mouser		http://www.mouser.com/