L or R channel with 1 Board  8x gain
Item Quantity Description Part number 1 BOM $ Brand/type
B22 board 1 12 12
R1 1 1/8W 1% metal film resistor 475O 71-RN55D-F-475 Vishay/ Dale 1% Metal film
R2 1 1/8W 1% metal film resistor 1MO 71-RN55D-F-1M Vishay/ Dale 1% Metal film
R3 1 1/8W 1% metal film resistor 182O 71-RN55D-F-182 Vishay/ Dale 1% Metal film
R4 1 1/8W 1% metal film resistor 1.21KO 71-RN55D-F-1.21K
R5, R6 2 1/8W 1% metal-film resistor 49.9O 71-RN55D-F-49.9
R7, R8 2 1/8W 1% metal-film resistor 56.2O 71-RN55D-F-56.2
R9-R12, R25, R26 6 1/8W 1% metal-film resistor 2.21KO 71-RN55D-F-2.21K
R13, RLED+, RLED- 3 1/8W 1% metal-film resistor 10KO 71-RN55D-F-10K
R14, R15, R32 3 1/8W 1% metal-film resistor 121O 71-RN55D-F-121
R16-R19 4 1/8W 1% metal-film resistor 10O 71-RN55D-F-10
R20, R21 2 1/8W 1% metal-film resistor 249O 71-RN55D-F-249
R22, R27 2 1/8W 1% metal-film resistor 562O 71-RN55D-F-562
R23, R24 2 1/8W 1% metal-film resistor 1.82KO 71-RN55D-F-1.82K Vishay/ Dale 1% Metal film
R30, R31 2 0O (wire jumper) Lead trimmings  (free)
R28, R29, R32 3 1/8W 1% metal-film resistor 75O 71-RN55D-F-75 Vishay/ Dale 1% Metal film
R33 1 1/8W 1% metal-film resistor 33.2O 71-RN55D-F-33.2 Vishay/ Dale 1% Metal film
R34, R35 2 2W 5% metal-oxide resistor 0.47O 282-0.47-RC Xicon;Small 5% Metal oxide 
Potentiometers
VR1 1 3/8" multi-turn cermet trimpot 200O 594-64W201 Vishay/ Spectrol model 64  25-turn
VR2 1 3/8" multi-turn cermet trimpot 500O 594-64W501 Vishay/ Spectrol model 64  25-turn
VR3 1 3/8" multi-turn cermet trimpot 5KO 594-64W502 Vishay/ Spectrol model 64  25-turn
Volume 1 Alps RK27112A 50KO dual log taper, panel-mount
(for 2-ch and 3-ch configurations only) From AMB shop Alps Blue Velvet;   (Optional)
Capacitors
C1-C5 5 multilayer ceramic capacitor 33pF 80-C315C330J1G Kemet;Golden Max; radial
C1-C5 5 multilayer ceramic capacitor 100pF 80-C315C101J1G Kemet;Golden Max; radial
C6-C8, C13, C14, C17, C18 7 metallized polyester capacitor 1�F 478-3367-ND AVX BF/BQ
C9-C12 4 aluminum electrolytic capacitor 100�F 50V 493-1668-ND Nichicon UHE  Low impedance
C15, C16 2 aluminum electrolytic capacitor 470�F 50V 647-UHE1H471MPD Nichicon UHE  Low impedance
Cz
Transistors
Q1, Q2 2 N-channel JFET 2SK170BL 2sk170-BL Toshiba  JFET
Q3, Q4 2 P-channel JFET 2SJ74BL 2sj74-BL Toshiba  JFET
Q5, Q6, Q11, Q12, Q15, Q16, Q17, Q25 8 NPN small signal BJT BC550C 512-BC550CTA Fairchild BJT TO-92
Q7, Q8, Q9, Q10, Q13, Q14, Q18, Q26 8 PNP small signal BJT BC560C 512-BC560CTA Fairchild BJT TO-92
Q19, Q20 2 N-channel JFET PN4392 512-PN4392 Fairchild JFET TO-92
Q21, Q23 2 International Rectifier N-channel power MOSFET IRFZ24N IRFZ24NPBF-ND MOSFET N-CH 55V 17A TO-220AB
Q22, Q24 2 International Rectifier P-channel power MOSFET IRF9Z34N IRF9Z34NPBF-ND MOSFET P-CH 55V 19A TO-220AB
Diodes
D1, D2, D5-D10 8 12V 500mW zener diode BZX55C12 512-BZX55C12
D3, D4 2 small signal diode 1N4148 512-1N4148
D11, D12 2 1A rectifier diode 1N4004 1N4004
LED+, LED- 1 Xicon super bright blue 351-3310-RC
CR1-CR8 8 Current regulator diode 0.56mA J503 J503-e3 vishay siliconix Silconix 0.56mA Current Regulating Diode
Miscellaneous
- 4 TO-220 extruded heatsink Aavid-Thermalloy 529802B00000 1.5" HS276-ND Aavid 1.5; Extruded screw mount
- 4 TO-220 heatsink thermosil pad 532-53-77-4
- 1 heatsink washer 532-7721-3PPS
Total

Last Updated on 7/20/2008
By Jeff Rossel
email: jeffrosselatglassjaraudio.com
Hosted by www.Geocities.ws

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