Bose 1801 Service Manual

17
PART LIST
Diodes and Transistors
Capacitors
Reference
Designator
Description Part
Number
Note
C1‡, 2‡ 1uF, Mylar, 50v, 10% 102751 4
C1, 14, 15 .1uF, Electrolytic, 100v, 10%, NP 102403
C1,101 100uF Electrolytic, 3v 102836 2
C2, 3 30uF Electrolytic, 100v 102405
C3, 4 14,000uF, Electrolytic, 100v 102438 3
C5 18,000uF, Electrolytic, 10v 104229 3
C5, 16 27pF, Ceramic Disc, 25v, 10% 102397
C6, 7, 10, 11 .01uF, Ceramic Disc, 25v, 10% 102399
C8 200pF, Ceramic Disc, 200v, 10% 102400
C9 300pF, Ceramic Disc, 200v, 10% 102396
C12, 13, 17 1000pF, Ceramic Disc, 200v, 10% 102453
Reference
Designator
Description Part
Number
Note
D1-4 Bridge Rectifier 102578
D5-8 Diodes 102422
CR1-4, 7, 16, 17
CR10-17,110-117
Diode 1N4148 116997
2
CR1-9,101-109 L.E.D Diode 106864 2
CR5, 18, 19 Diode SIM 1N3070 102411
CR6, 15 Diode 1N5425, Zener, 15V, 1/2w 102423
CR8-14, 20, 21 Diode SIM 1N4003 102422
Q1 SIM MM-4001 102425 5
Q2, 8
Q2,102
SIM 2N3906 102426 5
2
Q3 SIM 2N6175 102427 5
Q4 SIM 2N2219 102428 5
Q5 SIM 2N5415 102429 5
Q6 SIM 2N3584 102430 5
Q7, 24, 25
Q1,3-10,101,103-
110
SIM 2N3904 102432 5
2
Q9 SIM 2N6211 102431 5
Q10-23 MJ15011 117579
U1 Integrated Circuit, MC1556G 102409

Bose 1801 Specifications

General

Power Output	250 watts per channel into 8Ω (stereo)
Frequency Response	20Hz to 20kHz
Damping Factor	200
Input Sensitivity	1.5V
Speaker Load Impedance	4Ω to 8Ω
Total Harmonic Distortion	0.5%