GYRAF AUDIO GYRATEC IX MIC PREAMP: - COMPONENTS LIST - RESISTORS - 5% 1/4W U.O.N. R1,101 6K8 1% PHANTOM FEED R2,102 6K8 1% PHANTOM FEED R3,103 4K7 LINE ATT. R4,104 4K7 LINE ATT. R5,105 470R LINE ATT. R6,106 1M Rin STAGE1 R7,107 47K G LIFT V1A R8,108 2K2 G LIFT V1A R9,109 47K Ra, V1A *note:updated! R10,110 47K FEEDBACK R11,111 1K MAXGAIN R12,112 1M DC DISCHARGE R13,113 680R SET GAIN R14,114 1K2 SET GAIN R15,115 2K2 SET GAIN R16,116 4K7 SET GAIN R17,117 12K SET GAIN R18,118 100K SET GAIN R19,119 82K SET ATT. R20,120 22K SET ATT. R21,121 10K SET ATT. R22,122 5K6 SET ATT. R23,123 1M Rin STAGE2 R24,124 680R Rk STAGE2 R25,125 47K Ra STAGE2 R26,126 47K ATT.SERIES R R27,127 1M DC DISCHARGE R28,128 1M Rin SRPP R29,129 470R Rk SRPP (SET Ic) R30,130 1K5 Rak SRPP R31,131 1K 2W PSU STAB R32,132 10K OUTPUT LOAD R33 470R 2W SLOW START R34 100K 2W SET V HT R35 470R SET V HT R36 47R SET V HT R37 470R 2W PSU FILTER R38 (was 100R) N/A in this version R39 100R T1 PROTECT R40 2K2 ZENER LOAD R41 22K SET PR1 RANGE R42 10K P48 LOAD R43 N/A R44,144 10K OUTPUT LOAD R45,145 1K GATE STOPPER, V2A --------- RESISTORS, SORTED BY TYPE -------- RESISTORS - 5% 1/4W METAL FILM: 47R X 1 100R X 1 470R X 5 680R X 4 1K X 4 1K2 X 2 1K5 X 2 2K2 X 5 4K7 X 6 5K6 X 2 10K X 7 12K X 2 22K X 3 47K X 8 82K X 2 100K X 2 220K X 2 1M X 10 PRECISION RESISTORS: 6K8 1% 1/4W X 4 (FOR PHANTOM FEED) POWER RESISTORS: 470R 2W X 2 1K 2W X2 100K 2W X 1 (CHECK THIS LIST - NOT SURE ALL IS COUNTED..) ------------------------------------------- POTS: P1,101 47KB (LOG) POT, 6MM "OUTPUT LEVEL" PR1 10K TRIMMER 5x10MM OR 5x2½MM TRIM 48V CAPACITORS: C1 N/A C2,102 22OnF 250V POLYESTER INPUT DC BLOCK C3,103 470nF 250V POLYESTER INTERSTAGE V1A-V1B C4,104 1u5 250V POLYESTER OUTPUT DC DECOUPLING V1B C5,105 470nF 250V POLYESTER STAGE1 OUTPUT C6,106 68p 50V CERAMIC BW LIMITING C7,107 10u 63V POLYESTER GAIN DC DECOUPLING C8,108 10nF POLYESTER LOWCUT FREQ (HIGH) C9,109 22nF POLYESTER LOWCUT FREQ (LOW) C10,110 22OnF 250V POLYESTER SRPP INPUT DC BLOCK C11,111 470u16V RAD.EL.LYT SRPP CATHODE SHUNT C12,112 100n 63V POLYESTER SRPP CATHODE SHUNT C13,113 4U7 250V POLYESTER SRPP OUTPUT CAP C14 100u 350V RAD.EL.LYT HT RAW STAB (CAN BE LARGER..) C15 100u 350V RAD.EL.LYT HT OUT STAB (CAN BE LARGER..) C16 1000u 25V RAD.EL.LYT 12V HEATER RAW STAB C17 1000u 25V RAD.EL.LYT 12V HEATER RAW STAB C18 1000u 25V RAD.EL.LYT 12V HEATER RAW STAB C19 10u 35V RAD.EL.LYT IC2 STAB C20 100u 63V RAD.EL.LYT P48 RAW STAB C21 100u 63V RAD.EL.LYT V ZD STAB C22 100u 63V RAD.EL.LYT T1 Vb STAB C23 10u 63V RAD.EL.LYT P48 STAB C24 10u 35V RAD.EL.LYT 12V HEATER STAB C25,125 10u 250V RAD.EL.LYT HT NOISE FILTER C26 47u 63V RAD.EL.LYT TRIPLER P48 C27 47u 63V RAD.EL.LYT TRIPLER P48 C28 47u 63V RAD.EL.LYT TRIPLER P48 C29 47u 63V RAD.EL.LYT TRIPLER P48 TUBES: V1 ECC82 - 5814 - 12AU7A INPUT STAGE V2 ECC82 - 5814 - 12AU7A OUTPUT STAGE SOCKETS: 4x B9A VALVE SOCKETS FOR PCB MOUNTING SEMICONDUCTORS: D1 N/A D2 1N4007 PROTECT IC1 D3 ZD39 ½W PROTECT IC1 D4 ZD39 ½W PROTECT IC1 D5 ZD39 ½W PROTECT IC1 D6 ZD56 ½W REF. P48 D7,107 1N4148 RELAY SUPPRESS D8 1N4007 TRIPLER P48 D9 1N4007 TRIPLER P48 D10 1N4007 TRIPLER P48 D11 1N4007 TRIPLER P48 D12 1N4007 TRIPLER P48 D13 1N4007 RECT. 12V HEATER D14 1N4007 RECT. 12V HEATER D15 1N4007 RECT. 12V HEATER D16 1N4007 RECT. 12V HEATER D17 1N4007 RECT. 245V HT D18 1N4007 RECT. 245V HT D19 1N4007 RECT. 245V HT D20 1N4007 RECT. 245V HT IC1 TL783 REG. 245V HT IC2 78S12 REG. 12V HEATER T1 TIP121 REG. 48V PHANTOM MAGNETICA: TR1 OEP A262-A3E INPUT TRANSFORMER (OR) LL1528 INPUT TRANSFORMER TR2 OEP A262-A2E OUTPUT TRANSFORMER (OR) LL5402 OUTPUT TRANSFORMER IF USING OEP TRANSFORMERS, USE THE SCREENING CANS!! POWER TRANSFORMERS, for 220V-Countries: First: 220V:15+15V /30VA TOROID PSU 220V mains to 15VAC Second: 220V:12+12V /30VA TOROID PSU 15VAC to 220VAC *note:updated! OR - if you're in a 110V mains area: First: 110+110:15+15V/ 30VA TOROID PSU 220V mains to 15VAC First: 110+110:12+12V/ 30VA TOROID PSU 15VAC to 220VAC *note:updated! SWITCHES: SW1,101 3-POS ROTARY SWITCH "INPUT SELECT" - Preferably MBB SW2,102 12-POS ROTARY SWITCH, SET TO 11 "GAIN" - Preferably MBB SW3,103 3-POS ROTARY SWITCH "LOW CUT" - Preferably MBB SW4,104 3-POS ROTARY SWITCH, SET TO 2 "PHASE" - Preferably BBM SW5 MAINS ROTARY SWITCH "POWER" - Like RS Components #316-800 RY1,101 12V 2xCO RELAY "LINE SELECT" Like "Omron G5V-2 12VDC" MISC: ½ 21x30cm Pre-sensitized PCB - main board. 1 10x16cm Pre-sensitized PCB - control boards. J1 6.3MM SWITCHED PANEL JACK LA1 12V 50mA LIGHT - "POWER ON" INDICATION F1 1AT FUSE IEC POWER INLET, FUSED 2x XLR, 3PIN, CHASSIS, FEMALE - FOR INPUT 2x XLR, 3PIN, CHASSIS, MALE FOR OUTPUT 4x LARGE KNOBS, 6mm OR 1/4" 6x SMALL KNOBS, 6mm OR 1/4" 2x TO-220 ISOLATION SETS FOR PSU REGULATORS. 5x M3x10mm THREADED SPACERS FOR MOUNTING THE PCB. HARDWARE FOR MOUNTING THE TOROIDS. ONE NICE FRONT PANEL LAMP HOLDER, 12V/50Ma. SOME WIRE FOR MOUNTING. A 19" 2u MOUNTING CASE. REV#5 29-11-2006 JAKOB ERLAND