kenwood-tnc Simple TNC PCB to use a radio with a kenwood ptt connector with a pc to do packet radio Bill of Materials (BOM) Qty Value Parts URL (exemplary supplier) 2 1N 4148 D1,D2 https://www.reichelt.de/schalt-diode-100-v-150-ma-do-35-1n-4148-p1730.html?&nbc=1 1 2,20 kOhm R1 https://www.reichelt.de/widerstand-metallschicht-2-20-kohm-0207-0-6-w-1-metall-2-20k-p11584.html?&nbc=1 1 47 uF C1 https://www.reichelt.de/elko-radial-47-uf-50-v-105-c-low-esr-fr-a-47u-50-p200269.html?&nbc=1 1 BC 547C Q1 https://www.reichelt.de/bipolartransistor-npn-45v-0-1a-0-5w-to-92-bc-547c-p5007.html?&nbc=1 1 SUB-D9 J1 https://www.reichelt.de/d-sub-stecker-9-polig-gewinkelt-rm-2-77-d-sub-st-09eu-p6986.html?&nbc=1 4 3.5 mm J2,J3,J4,J5 https://www.reichelt.de/klinkenbuchse-stereo-3-pol-3-5-mm-cliff-fc68131-p228173.html?&nbc=1 2 1kOhm RV1, RV2 https://www.reichelt.de/praezisionspotentiometer-trimmer-stehend-1-0-kohm-9-5-mm-76-40-1-0k-p3498.html?&nbc=1