Bryston-BP20-25 preamp.pdf part of Bryston BP20 & 25 Bryston-BP20-25 preamp.pdf, pre-amp text manual preview

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BP25 PREAMP MAIN SCHEMATIC

Rev 1.5e 17 Aug 2000 WP Rev 1.61 26 Sept 01 WP 20N cap in RC reveiver IR receiver replaced with (45027) repalced with 22n updated part RPM6938 (Rohm) and the 49K9 in parallel with it is chg'd to 45K3. Two Rev 1.6 09 Aug 2001 ST 1000u/50v caps on output of HEADPHONE MUTE WIRING 8v regulator replaced with SHOWN single 2200u/35v cap.

Rev 1.6A 15 APRIL O2 ST ADD 1MEG TO + BUFFER INPUT Rev 1.7 1 Aug 03 WP Corrected dwg error to gnd'ng at sel.sw. inputs