Labels:text | diagram | plan | black and white | technical drawing | schematic | font OCR: QUESTION What do you suppose old Alex really said when he spilled TAP the acid on himself? Could it be that History's first phone call was an obscene one ? 1 Agent 038 issue. ) (If you didn't understand it, we will explain it in a future ULTIMATE RED BOX by Al Bell JUNE 1976 NO.36 SPST Momentary Pushbuttons 100KL 3 +9 volts 25 10 5 [V+ 8.2KS + LM741 Out VVV 1 ≥10K 5.6KS Earpiece 100K V+ |100K (or 100 ohm 0 $10K2 speaker) 10K 1 U 16 2 20K 15 m NVV 3 215K 10K 14 15K 4 13 01 100K 100K . 01 15 .01 10 . 002 777 7 5 12 39K . 002 6 11 47K .05 . 002 1111 7 10 002 M 56K 18 9 XR-2240 47K 39K 50K 111 005 . 005 50K 2200 Hz 1700 Hz 470K Ground (Negative end of 9 volt battery) LM741 NPN Transistor The circuit is easy to build on perf-board, and cheap 1 8 because the most expensive part, the XR-2240, cos ...
