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Summary of Contents for 210 B

Page 1: ...INSTALLATION AND OPERATING INSTRUCTIONS MODEL 210 I3 STEREO TURNTABLE PREAMPLIFIER EQUALIZER COPYRIGHT 1974 STANTON MAGNETICS INC PLAINVIEW EW YORK ...

Page 2: ...trols at max Maximum input level before clipping 1kHz Noise Input terminated in cartridge Input Impedance Channel Separation Input Connectors Output Connectors Power Requirements Mechanical Dimensions Mounting Provisions 1 1 20 dBm Maximum Less than 0 25 20 dbm 150 or 600 ohms internally Selectable Transformer Output Shipped wired for 600 ohm isolated outputs ldB from 30 to 20 000 Hz Either Flat o...

Page 3: ...unded tnrough the three wire AC line cord If the additional chassis ground creates through the metal cabinet an undesireable ground loop simply plug in the AC line through a standard NEMA grounding to non grounding adapter plug II 2 OPERATION After mounting the preamplifier and completing the desired input and output connections the power line can be connected the FLAT or NAB response selected wit...

Page 4: ...ndard test record such as the NAB TEST RECORD with discrete frequencies recorded in accordance with the March 1964 NAB recording standard This allows the preamplifier to compensate for any deficiencies in the high frequency response of the cartridge or other system components In both methods it is only necessary to take measure ments at two frequencies such as 1 KHZ and 10 KHZ i e the gain is meas...

Page 5: ... nominal value of 82 while R4 R5 C3 C4 and C5 control the NAB response performance The first amplifier section is followed by the LEVEL gain control R9 and then a flat response power amplifier with a nominal voltage gain of 7 controlled by Rll and R12 The integrated circmit amplifier Al drives a power output stage consisting of Q2 and Q3 connected as a complementary symmetry emitter follower pair ...

Page 6: ...rs and VTVM s can inject larg line voltage spikes into the circuit being tested Therefore use particular caution in measuring the various integrated circuits in the pre amplifier since integrated circuits are extremely sensitive to this type of voltage spike 111 2 ...

Page 7: ...mic 100 PF lKV Rectifier IN4002 Resistor carbon 1 4W 5 4 7 ohms select at test film l BW 1 B 25K 7 15K Transformer power Stanton 2100 4210 Integrated circuit Fairchild U6A7739393 Capacitor electrolytic 4 7 UF 50V 22 UF 25V film 0056UF 200V Mica 820 PF 500V trimmer 450 l390PF ceramic 05 UF 50V 001 UF lKV Capacitor film 022 UF 200V 01 UF 200V electrolytic 47 UF l6V ceramic 25 PF lKV Resistor carbon ...

Page 8: ...Y MODULE v I L __ __J L t 1 V 1 Cfri rl H lr r SIQ2 r MPL I FIER CI RCUIT MODULE LEFT CHAN to __ AMPLIFIER CIRCUIT MODULE RIGHT CHAN r 1 o 11 RIGHT INPUT LOGIC OIA PROFESSIONAL PRE AMP MODEL 210 B e c C u II 7tY hIJ IJW 1 2100 D109 0 SHT 3 OF 3 ...

Page 9: ...J 393 14 1 8W I R8 1 1100PfTJKVI 8 I l l I v p C 2100 4510 0B POWER SUPPLY MODULE NOTES I jII SELECTED IN TEST 2 UNLESS OTHERWISE SPECIFIED ALL RESISTORS ARE IN OHMS 1 4 WATT SOlo ALL CAPACITORS ARE IN MICROFARADS L_ _ ___ __ ___ c_ _ SCHEMATIC PROFESSIONA PRE AMP MODEL2IOB_ ...

Page 10: ... 7 IRI4 2 7K 13 05 SOV RIG 33K AMPLIFIER MODULE NOTES 1 UNLESS OTHERWISE SPECIFIED ALL RESISTORS ARE IN OHMS 114 WATT SO oJ ALL CAPACITORS ARE IN MICROFARADS TWO MODULES REOD FDR PRE A p os 1 C4 SOlO s 3_v s W f7 S K nz MPS U 02 1 4 1M I Y Ir o CS J CI7 _ 11 U iIIS I D CI CI C I 5D s s C7 C C1ii ZlIS I SCHEMATIC PROFESSIOI AL PRE AMP MODEL 210B ...

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