CASCODE_TONE_CONTROL

Published:2009/6/30 1:41:00 Author:May | From:SeekIC

Circuit raises 100-mV input signal level to 1V for driving power amplifier and uses cascode arrangement to im-prove S/N ratio of tone control network. Values show give maximum bass boost or cut at 50Hz with R19 and maximum treble boost or cut at 10kHz with R20，Tr2 can be BC15,BC214、BC309, or equivalent，Other transistors can be BC109、BC114、BC184, or equivalent.-J，N Ellis,Hiah Quality Tone Control， Wireless World Aug.1973、p378



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