Nobels PRE1 free download

File name nobels_pre1_preampboostereq.pdf

1 2 3 4 5 6 F D1 3mm Green low-curr. JP1A XSIP10 JP1B XSIP10 JP1C XSIP10 1 2 3 LED1 LED2 BA3 BA2 BA1 TR1 TR2 3 2 3 2 F EXTERNAL POWER SUPPLY V+ Vs P1 POTI 1 BASS 50KB J4 2 5 4 1 R203 R201 18k + 2 1 TR2 100 C21 + TR1 TR3 J7001 B1 D201 C24 12N R21 1K5 C26 1N 7 C201 220 R202 18k C202 + 220 C203 47 P2 POTI 1 TREBLE 50KB E 22N 4001 E SNAP VVV+ INPUT VVV- 1 V+ 9 8 TR3 3 P3 POTI 1 2 GAIN 100KA C11 6 U1B 4558S 47P 2 3 2 1 R22 100 J1 Q1 BC264D R1 33K 1 3 R11 2K2 V+ 1 C10 3.3 R10 3 U1A C20 2 C22 39N R20 8K2 BA2 BA3 BA1 C23 22N R23 10K JP1D XSIP10 JP1E XSIP10 JP1F XSIP10 4 5 6 + C25 1 C104 10 R34 330K D J8004 D 10K 4 5 4558S 10 V- R2 1M VV- R3 3K3 V- R108 2K2 XON R105 1M C105 47N V- D2 3 Q6 2 K30A-Y 1 V+ C30 56N C BYPASS Q2 3 2 R109 4K7 K222E V- 4148 K30A-Y Q5 2 1 C 1 C31 R30 200K J3 3 2 1 3 D101 4148 SW101A 2 1 Vs V- R102 100K U101 SW2204 3 1A 1SP 1DP 1DN 1SN VDD 2DP 2A 2DN VSS 10 3A 3SP 3Y 3SN 2 1 5 4 14 13 8 7 11 12 9 V- 1 R31 10K R110 2K2 V- R32 330K 3 XOFF R111 1M C106 47N D6 R33 330K 4148 V+ J8004 XOFF 2 D5 4148 R103 100K XON V- C40 1 Q3 3 OUTPUT SW101B 6 5 4 B 6 C2362G 1 3 J2 C41 2 SW2204 R101 470K R106 R104 1M C102 10N V- D3 4148 510 R107 2K7 V1 2 LED1 LED2 Q4 C2362G 3 + R40 200K R41 2K2 3.3 R42 200K 1 B J8004 V- V- V- C101 1N VV- 4007 C103 1 (c) Copyright 1997 - ALL RIGHTS RESERVED All unspecified capacitors in uF, resistors carbon 5% V- V- >_RU\c5\USdb_^YSc Barnerstrasse 42, 22765 Hamburg, Germany A Title Number: Date: File: 1 2 3 4 5 http://wwww.nobels.com - email: [email protected] A CIRCUIT DIAGRAM PREAMP-BOOSTER / PRE-1 21-Jan-2000 Time: Size: A4 Sheet 1 Rev: 2 of 15:46:10 1 R:\$PRO\PEDS\DSGN\PRE-1\PRE1R1.SCH 6