Realistic-42_2111-riaa-sch 电路图 维修手册.pdf

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1、C1 R1 R11 C11 L INPUT INPUT R3 C1740S NPN C B Q1 C1740S NPN E C B Q2 C5 R13 R5 E C10 L OUTPUT R17 R7 C3 R15 C7 C9 C1740S NPN C B C1740S NPNE C B E R R OUTPUT R2 R4 C2 R12 C6 R14 R10 Q3 Q4 C4 R8R16 C8 R18 C13 C12 +9V RADIO SHACK 42-2111 PHONO PREAMPLIFIER 1F 50V 47F 16V 100 F 16V 47pF 0.0047F0.015F 1

2、0F 16V 56K 2.2K 1K 220K16K 120K12K 120K12K R9 0.0047F0.015F 220K16K47pF 1F 50V 1K 460K 460K 46R 2.2K 47F 16V 56K 10F 16V The Radio Shack Stereo Phono Pre-Amplifier lets you easily connect a turntable with a magnetic stereo phono cartridge to amplifiers without magnetic stereo phono cartridge capabil

3、ities. Its silicon transistors provide low noise and a stable RIAA compensated circuit. The pre-amplifier is housed in a small, sturdy, metal case and operates from a single 9-volt battery. Rated Input Level:.3mV Maximum Permissable Imput:.38mV Output Level:.1.8V ms Frequency Response:.30 Hz to 20 k

4、Hz +/- dB Compensation:.RIAA with deviation less than +/- 1 dB Signal-to-Noise Ratio:.50 dB with normal input Crosstalk:.Better than 50 dB Transistors:.Four (4) Silicon transistors Battery:.9 volt transistor radio type Current Drain:.1 mA average Size:.3 5/8 x 2 9/16 x 1 3/16 (HWD) Inches Weight:.5 1/2 oz w/o battery R6 46R Input Impedance:.50 Kohms at 1,000 Hz Output Impedance:.50 Kohms Amplitude Gain:.34 dB RadioFans.CN 收音机爱 好者资料库