Labels:text | black and white | font | diagram OCR: RED BOX PHREAKS! GREETINGS A Ah the cingle-sist coin phones I have frequently been ED. NOTE: For those of you who want to make a BUILD A LINE RELAY hole to jet a dial tone by putting in a nickel and giving simple and reliable red box, we show a schematic CONTACTS the hookswitch a short tap (this takes practice) . The of an oscillator and amplifier and telephone dial. N.C. dial won't work, though, so you will have to tap out It is basically the same as last month's red box, 211 to get the operator. except that a telephone dial replaces the flip-flop and timer, thus mechanically producing the tones. 5 mfd. aCOMMON TO WALL I have built a red box using an oscillator, a telephone SOCKET earpiece, and an AE phone dial. The shorting contacts All resistors are half watt 10%. Transistor is RG 400 V ...
