NJM2001V. 300Hz HPF. IC502. NJM2902V. 2300Hz BPF. IC506. NJM2902V. COMPARATOR. IC507. TC75W56FU. 2300Hz BPF. IC506. NJM2902V. COMPARATOR. IC507. TC75W56FU. SW.

... NJM2001V NJM2902V NJM2902V TC75W56FU NJM2902V TC75W56FU. VCC VCC VCO21V VCO22V VWFM VWFM VCC VCC +B. VCO21V. SW SW SW BPF AMP SW SW SW SW X'TAL OSC SW 250Hz ...