Millett Hybrid MAX - Design/Layout by Colin Toole | Last
revised: 4/16/08 |
BOM by Tom Blanchard |
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PART ID | DESCRIPTION | QTY | SOURCE | PART NO | EACH | TOTAL | SOURCE | PART NO | EACH | TOTAL |
BASIC MILLETT | ||||||||||
RA1L/R | 5K Ohm Trim Pot | 2 | Mouser | 72-T93YA-5K | $1.21 | $ 2.42 | DigiKey | 490-2888-ND | $ 0.85 | $ 1.70 |
RA2L/R, RA4L/R | 1K ohm | 4 | Mouser | 71-RN55D-F-1.0K | $0.16 | $ 0.64 | DigiKey | CMF1.00KHFCT-ND | $ 0.17 | $ 0.49 |
RA7L/R | 1M ohm | 2 | Mouser | 71-RN55D-F-1.0M | $0.18 | $ 0.36 | DigiKey | CMF1.00MHFCT-ND | $ 0.17 | $ 0.49 |
CA2L/R* | 1000uF 16V Electrolytic* (16mm dia max)[1] | 2 | Mouser | 647-UPW1C102MPD | $0.77 | $ 1.54 | DigiKey | P12366-ND | $ 0.59 | $ 1.18 |
CA4L/R, CA5L/R[2] | 1000-1800uF 35V Electrolytic (18mm dia. max, 15mm leads max)[3] | 4 | Mouser | 647-UPW1V182MHD | $1.59 | $ 6.36 | DigiKey | P12410-ND | $ 1.30 | $ 5.20 |
CA3L/R, CA6L/R, CA8L/R** | 0.22uF Film Cap 15mm leads | 6 | Mouser | 505-M10.22/250/10 | $1.11 | $ 6.66 | DigiKey | BC1609-ND | $ 0.63 | $ 3.78 |
CA7L/R* | 470uF 35V Electrolytic* (16mm dia. Max)[4] | 2 | Mouser | 647-UPW1V471MPD | $0.88 | $ 1.76 | DigiKey | P12400-ND | $ 0.76 | $ 1.52 |
CA9LR** | 0.22uF Film Cap (20mm leads max)[5] | 2 | Mouser | 505-M10.22/250/10 | $1.11 | $ 5.04 | DigiKey | P3224-ND | $ 1.28 | $ 2.56 |
CCS: | ||||||||||
QA1L/R, QA2L/R | 2N5087 PNP small signal[6] | 4 | Mouser | 512-2N5087_J18Z | $0.11 | $ 0.44 | DigiKey | 2N5087-ND | $ 0.19 | $ 0.76 |
RA8L/R | 1.13K ohm | Mouser | 71-RN55D1131F | $0.16 | $ - | |||||
RA9L/R | 11.3K ohm | Mouser | 71-RN55D-F-11.3K | $0.16 | $ - | |||||
Optional selection: | results in CCS current of 0.65 ma | |||||||||
RA8L/R | 1K ohm | 2 | Mouser | 71-RN55D-F-1.0K | $0.16 | $ 0.32 | DigiKey | CMF1.00KHFCT-ND | $ 0.17 | $ 0.34 |
RA9L/R | 10K ohm | 2 | Mouser | 71-RN55D-F-10K | $0.16 | $ 0.32 | DigiKey | CMF10.0KHFCT-ND | $ 0.17 | $ 0.34 |
MISC: | ||||||||||
R1 (optional) | 10 ohm, 1W resistor[7] | 1 | Mouser | 282-10-RC | $0.19 | $ 0.19 | DigiKey | 10W-2-ND | $ 0.18 | $ 0.18 |
RA5C/L/R (RLED's) | 2K ohm 1/2W[8] | 3 | Mouser | 293-2K-RC | $0.09 | $ 0.27 | DigiKey | 2.0KH-ND[9] | $ 0.26 | $ 0.78 |
LED1 | Panel LED, 5mm, 60 mcd - Blue | 1 | Mouser | 78-TLHB5400 | $0.64 | $ 0.64 | DigiKey | 160-1604-ND | $ 1.40 | $ 1.40 |
LEDL/R | Tube LED's, 3mm ultra-high, 5500 mcd - Blue | 2 | Various | $1.00 | $ 2.00 | Various | $ 1.00 | $ 2.00 | ||
POT | 50K AUDIO TAPER POT | 1 | Beezar.com | ALPS RK27 | $16.00 | $ 16.00 | Beezar.com | ALPS RK27 | $ 16.00 | $ 16.00 |
VTL/R | TUBES | 2 | Beezar.com | 12AE6/A (gain of 14) | $5.00 | $ 10.00 | Beezar.com | 12AE6, 12AE6A | $ 5.00 | $ 10.00 |
Beezar.com | 12FK6 (gain of 7) | $5.00 | Beezar.com | 12FK6 | ||||||
Various | 12FM6 (gain of 10) | Various | 12FM6 | |||||||
SOCKET | 7-PIN MINI TUBE SOCKET | 2 | Beezar.com | 7-Pin Mini | $2.00 | $ 4.00 | Beezar.com | 7-Pin Mini | $ 2.00 | $ 4.00 |
Terminal Block 2pos | Not needed on production version | 0 | Mouser | 158-P02ELK508V2-E | $0.72 | $ - | DigiKey | ED1930-ND | $ 0.62 | $ - |
Terminal Block 3pos | 5mm (or 5.08mm) | 2[10] | Mouser | 571-2828363 | $0.42 | $ 0.84 | DigiKey | ED1931-ND | $ 0.93 | $ 1.86 |
1/4" Stereo Jack | Neutrik NMJ6HCD2 | 1 | Mouser | 550-22302 | $1.10 | $ 1.10 | DigiKey | ---- | $ - | |
Optional selection: | recommended for high current DB's | |||||||||
Fuse Clips, PCB mount | 5x20 fuse clip, 0.2" horiz. lead spacing | 2 | Mouser | 534-3519 | $0.13 | $ 0.26 | DigiKey | 486-1173-ND | $ 0.15 | $ 0.30 |
Fuse | 5x20mm - 1A slo-blo optional, your choice[11] | 1 | Mouser | DigiKey | ||||||
PCB | Circuit Board | 1 | Beezar.com | n/a | $20.00 | $ 20.00 | Beezar.com | n/a | $ 20.00 | $ 20.00 |
POWER SUPPLY | ||||||||||
RR1 | 120 ohm 1/4W | 1 | Mouser | 71-RN55D-F-121 | $0.16 | $ 0.16 | DigiKey | CMF121HFCT-ND | $ 0.17 | $ 0.49 |
RR2 | 2K ohm 1/2W | 1 | Mouser | 71-RN60D-F-2K/R | $0.21 | $ 0.21 | DigiKey | P2.0KW-1BK-ND | $ 0.23 | $ 0.23 |
RR3 | 1K ohm trimmer pot | 1 | Mouser | 72-T93YA-1K | $1.20 | $ 1.20 | DigiKey | 490-2874-ND | $ 0.85 | $ 0.85 |
CR1A, CR1B, CR1C, CR1D | 1000uF 50V Electrolytic (18mm dia max) | 4[12] | Mouser | 647-UPW1H102MHD | $1.48 | $ 5.92 | DigiKey | P12393-ND | $ 1.30 | $ 5.20 |
CR2 | 1uF 63V Box cap | 1 | Mouser | 75-MKT1817510064 | $0.77 | $ 0.77 | DigiKey | 478-3367-ND | $ 0.45 | $ 0.45 |
CR3A, CR3B, CR3C, CR3D | 100pF NPO Ceramic | 4 | Mouser | 140-50N5-101J-RC | $0.08 | $ 0.32 | DigiKey | 399-4199-ND | $ 0.28 | $ 1.12 |
CR4 | 10uF 35V Tantalum | 1 | Mouser | 581-TAP106K035SCS | $1.28 | $ 1.28 | DigiKey | 399-3579-ND | $ 1.50 | $ 1.50 |
CR5 | 1uF 50V Tantalum | 1 | Mouser | 581-TAP105K050SCS | $0.50 | $ 0.50 | DigiKey | 399-3547-ND | $ 0.59 | $ 0.59 |
DR1A, DR1B, DR1C, DR1D | Schottky 35V 10A Rectifier | 4 | Mouser | 821-MBR1035 | $0.64 | $ 2.56 | DigiKey | MBR1035GOS-ND | $ 1.07 | $ 4.28 |
DR2, DR3 | 1N4002 | 2 | Mouser | 512-1N4002 | $0.06 | $ 0.12 | DigiKey | 1N4002/54GICT-ND | $ 0.69 [13] | $ 1.38 |
VREG | LM317T | 1 | Mouser | 511-LM317T | $0.39 | $ 0.39 | DigiKey | LM317TFS-ND | $ 0.48 | $ 0.48 |
Heat Sink | Wakefield #647-10ABP (1"h.) | 1 | Mouser | 567-647-10ABP | $1.23 | $ 1.23 | DigiKey | 345-1031-ND | $ 1.79 | $ 1.79 |
recommended for MOSFET | Wakefield #647-15ABP (1.5"h) | 1 | Mouser | 567-647-15ABP | $1.38 | DigiKey | 345-1032-ND | $ 2.03 | ||
Walwart | 24VAC,
750-1000ma Walwart 24VAC, 1000ma Walwart for MOSFET |
1 | Mouser | 553-WAU24-750 | $7.70 | $ 7.70 | DigiKey | ---- | $ - | |
Power Socket | 2.1mm
Insulated Socket (must be isolated from case) |
1 | Mouser | 163-4302-EX | $1.38 | $ 1.38 | Radio Shack | 274-1563 | $ 1.99 | $ 1.99 |
SPST Switch | Black Rocker w/round hole & thread | 1 | Mouser | 103-R13-135A-02-EV | $1.18 | $ 1.18 | Radio Shack | 275-693 | $ 2.99 | $ 2.99 |
E12 DELAY | ||||||||||
RM1 | 3.32K ohm | 1 | Mouser | 71-RN55D-F-3.32K | $0.16 | $ 0.16 | DigiKey | CMF3.32KHFCT-ND | $ 0.17 | $ 0.49 |
RM2 | 1M ohm[14] | 1 | Mouser | 71-RN55D-F-1.0M | $0.18 | $ 0.18 | DigiKey | CMF1.00MHFCT-ND | $ 0.17 | $ 0.49 |
CM1 | 47uF, 25V Electrolytic | 1 | Mouser | 140-HTRL25V47-RC | $0.08 | $ 0.08 | DigiKey | 493-1300-ND | $ 0.14 | $ 0.14 |
CM2 | 0.1uF X7R | 1 | Mouser | 21RX310-RC | $0.19 | $ 0.19 | DigiKey | 399-4329-ND | $ 0.21 | $ 0.21 |
CM3 | 330uF 16V Electrolytic (10mm dia. Max)[15] | 1 | Mouser | 140-HTRL25V330-RC | $0.18 | $ 0.18 | DigiKey | 493-1285-ND | $ 0.36 | $ 0.36 |
DM1 | 1N5242B Zener | 1 | Mouser | 78-1N5242B | $0.04 | $ 0.04 | DigiKey | 1N5242B-TPCT-ND | $ 0.75 | $ 0.75 |
DM2 | 1N4148 | 1 | Mouser | 78-1N4148 | $0.03 | $ 0.03 | DigiKey | 1N4148FS-ND | $ 0.07 | $ 0.07 |
QM1 | BD139[16] | 1 | Mouser | 512-BD1396STU | $0.33 | $ 0.33 | DigiKey | BD13916STU-ND | $ 0.42 | $ 0.42 |
QM2 | MPSA14 | 1 | Mouser | 512-MPSA14 | $0.12 | $ 0.12 | DigiKey | MPSA14-ND | $ 0.29 | $ 0.29 |
G6A | Omron 12V DPDT Relay G6A-234P | 1 | Mouser | 653-G6A-234P-DC12 | $3.48 | $ 3.48 | DigiKey | Z106-ND | $ 4.68 | $ 4.68 |
BJT Diamond Buffer ( | ||||||||||
RB1L/R | 1K ohm | 2 | Mouser | 71-RN55D-F-1.0K | $0.16 | $ 0.32 | DigiKey | CMF1.00KHFCT-ND | $ 0.17 | $ 0.34 |
RB6L/R, RB7L/R | 220 ohm | 4 | Mouser | 71-RN55D-F-221 | $0.16 | $ 0.64 | DigiKey | CMF221HFCT-ND | $ 0.17 | $ 0.68 |
RB2L/R, RB3L/R | 10 ohm | 4 | Mouser | 71-RN55D-F-10.2 | $0.16 | $ 0.64 | DigiKey | CMF10.2HFCT-ND | $ 0.17 | $ 0.68 |
RB10L/R, RB11L/R | 2.2 ohm 2W Metal Film | 4 | Mouser | 594-5083NW2R200J | $0.32 | $ 1.28 | DigiKey | P2.2W-2BK-ND | $ 0.28 | $ 0.98 |
RB12L/R | 2K ohm Trimmer Pot - different value | 2 | Mouser | 72-T93YA-2K | $1.20 | $ 2.40 | DigiKey | 490-2880-ND | $ 0.85 | $ 1.70 |
RB4L/R, RB5L/R, RB13L/R | 100 ohm | 6 | Mouser | 71-RN55D-F-100 | $0.16 | $ 0.96 | DigiKey | CMF100HFCT-ND | $ 0.17 | $ 1.02 |
RB8L/R, RB9L/R | NOT USED - for MOSFET ONLY - jumper out | |||||||||
RB14L/R | 22 ohm[17] | 2 | Mouser | 71-RN65D-F-22.1 | $0.51 | $ 1.02 | DigiKey | CMF22.1HFCT-ND | $ 0.17 | $ 0.34 |
QB1L/R | PN4392[18] | 2 | Mouser | 512-PN4392 | $0.15 | $ 0.30 | DigiKey | PN4392FS-ND | $ 0.30 | $ 0.60 |
QB2L/R, QB4L/R, QB6L/R | 2N5087 PNP small signal[19] | 6 | Mouser | 512-2N5087_J18Z | $0.11 | $ 0.66 | DigiKey | 2N5087-ND | $ 0.19 | $ 1.14 |
QB3L/R, QB5L/R, QB7L/R | 2N5088 NPN small signal[20] | 6 | Mouser | 512-2N5088TA | $0.06 | $ 0.36 | DigiKey | 2N5088BU-ND | $ 0.18 | $ 1.08 |
QB8L/R | MJE243 NPN power transistor[21] | 2 | Mouser | 863-MJE243G | $0.76 | $ 1.52 | DigiKey | MJE243GOS-ND | $ 0.73 | $ 1.46 |
(default option) | BD137 NPN power transistor[22] | 2 | Mouser | 512-BD13716STU | $0.31 | $ 0.62 | DigiKey | non-stock | $ 0.73 | $ 1.46 |
QB9L/R | MJE253 PNP power transistor | 2 | Mouser | 863-MJE253G | $0.58 | $ 1.16 | DigiKey | MJE253GOS-ND | $ 0.72 | $ 1.44 |
(default option) | BD138 PNP power transistor[23] | 2 | Mouser | 512-BD13810STU | $0.33 | $ 0.66 | DigiKey | non-stock | $ 0.72 | $ 1.44 |
Special Alternates for Q8/Q9 | ||||||||||
a | 2SC3421 NPN power transistor[24] | 2 | Beezar.com | 2SC3421 | $1.50 | *** | ||||
a | 2SA1358 PNP power transistor | 2 | Beezar.com | 2SA1358 | $1.50 | *** | ||||
b | 2SC3422 NPN power transistor[25] | 2 | Beezar.com | 2SC3422 | $1.75 | *** | ||||
b | 2SA1359 PNP power transistor | 2 | Beezar.com | 2SA1359 | $1.75 | *** | ||||
c | 2SC2344 NPN power transistor[26] | 2 | Beezar.com | 2SC2344 | $1.25 | *** | ||||
c | 2SA1011 PNP power transistor | 2 | Beezar.com | 2SA1011 | $1.25 | *** | ||||
d | 2SC2238 NPN power transistor[27] | 2 | Beezar.com | 2SC2238 | $2.00 | *** | ||||
d | 2SA968 PNP power transistor | 2 | Beezar.com | 2SA968 | $2.00 | *** | ||||
Heat Sink | Aavid #531002B02500G (1"h.) | 4 | Mouser | 532-531002B25G | $1.06 | $ 4.24 | DigiKey | HS190-ND | $ 1.25 | $ 5.00 |
Aavid #531002B02500G (1-1/2"h.) | 4 | Mouser | 532-531102B25G | $1.14 | DigiKey | HS352-ND | $ 1.37 | |||
ENCLOSURE | ||||||||||
PCB: 134.1W x 152.4L (mm) | Hammond 1455T1601 | 1 | Mouser | 546-1455T1601 | $23.58 | $ 23.58 | DigiKey | HM903-ND | $ 23.57 | $ 23.57 |
TOTAL | 151.23 | TOTAL | $ 149.05 | |||||||
* These are consensus boutique electrolytic cap positions: | ||||||||||
Use Nichicon Muse ES from Beezar.com, Bdent (CA7) & Handmade Elec (CA2), or both from Michael Percy, | ||||||||||
Elna RFS Silmic from DigiKey, or Black Gate N or NX from PartsConX or Soniccraft | ||||||||||
** These are consensus boutique film cap positions, the selection choices are many. | ||||||||||
However, be very careful what you put in CA9 - see the website on "boutique." | ||||||||||
*** These may be cheaper if purchased at Bdent and/or MCMinone (there are minimum purchase thresholds). | ||||||||||
However, the 2SC2238/2SA968 pair are rare and often counterfeited. | ||||||||||