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OCR: NOISE MODULE 510K0 510K 220 KS 10K 10K W 10K NOISE OUT y^yy LF411 0.1 0.1F MS 0-2 v SHIELD 10K0 l7 F] RMS AMPLITUDE SIGNAL MODULE 4.7 F 4.7 KO KS 0.1 F 10 KS ICL8038 MMM 100 KO 10 10K SINE OUTPUT WAVE 0.1F 10 K AMPLITUDE THRESHOLD DETECTOR NOISE IN 100 K 100 KS +9V +9V 4.7 uF 470 SIGNAL 100 K 10K yyy^y 2 K yy 0.1 10 LM 2917 100 nF M31 10 KS2 39 001 MA 1nF 10 KS2 1 K THRESHOLD 0.1uF ADJUS" LM386 AUDIO 220 OUTPUT HEADPHONE VOLUME JACK AMPI LITUDE CL8038 F411 AMPL ITUDE 100K LM311 ADJUST AUDIC 220F 100F