Gretsch 7798 Controlfuzz 电路图.pdf

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1、+ The Gretsch Controfuzz is a variant of the op-amp-driving-diode-clipper type of distorter. The only unusual features are that the distortion is run at high boost all the time in the first opamp, and then subtracted from the dry signal in the second opamp. The amount of distortion mixed in is deter

2、mined by the Distort control, and the overall volume level when the distortion is switched in is set by the Boost control. The op amps are both type 748, which needs a compensation capacitor (25 pF in this case) to be stable. Other modern opamps should work. Gretsch Controfuzz Model No. 7798 100 25pF25pF 0.47uF 1N4001 0.1 uF 9V + 100K 100K 220pF 220K 10uF 10K0.1uF 1N4001 220K 10K100K 0.47uF 330K Distort Boost 10K IN OUT 4 5 6 10 3 12 4 5 6 10 3 12 To pin 11, V+, on both opamps RadioFans.CN 收音机爱 好者资料库