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This is a business card sized circuit diagram which is in extremely fragile condition. This was found in an old toolbox owned by KC4NCO (SK)Text found on the diagram (to make this a search result):TR RADIO SET CIRCUIT DIAGRAM (6TR)RETMA CONV 2N219 IF 2N218 IF 2N218 AF 2n215 POWER 2N217 x2IFT AFT ANT COIL 180p OSC COIL DET GEL DIODE 1N60A 0.04 30k 2k 30u 3V 850 ohm 3k 1k 2k 12k 4k 20k VARISTOR HV-12 SW BATT 9v 10 ohmTRACKING LESS V.C. CAP ANT 200pF OSC 90pF INDUCTANCECOIL ANT 437uHOSS 270 uHEMITTER INJECTION TYPE IFT IMPEDANCE PRI SEC 1 70k ~1.5k 2 50k ~ 1k 3 30k ~ 5kAFT IMPEDANCE PRI SEC 1 8k 1.5k (C.T.) 2 800 ohm (CT) ~ 8 ohm CN1 CN2 NEWTROLIZING CAPACITORS VALUE IS DETERMINEDEXPERIMENTALLY, APPROXIMATELY CN1 3pF CN2 3pFIFT-2 (WHITE)CN,B,COLLECTOR[1, 2, 3][5, 4 ]BASE, BIAS
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