4116 ram tester

This is 4116 dram tester. I order clear pcb rev2 and assemble. Now works fine. Actually it need for repair atari 65xe with damaged ram. Now I can repair my atari! ;) gerber available on my site, as well as bom list Schematic also can help while assembling. ps. several mods available from Alex Wierzbowsky [RBSC] on his github Photos up

December 6, 2024

Chip tester

I have (order year ago) TTL chip tester TES200. Not well from my point of view because support limited sets of chips. I think about new one, found several variants. TES200 (I have) TrolSoft - very good variant but too expensive from my point of view (aprox. 100 usd) Mega-IC-Tester - Opensource tester, based on arduino 2560. Cheap and usefull. Will try to build Mega-IC-tester. In case of unsuccessfull probably order one from TolSoft....

December 6, 2024

TTL Chip tester

Overview Chineese chip tester TES200. Works ok, sometimes helps. But support small set of chips for testing. Thats make this device bad. Supported chips 40* 74* 7400, 7401, 7402, 7403, 7404, 7405, 7406, 7407, 7408, 7409, 7410, 7411, 7412, 7413, 7414, 7415, 7416, 7417, 7418, 7419 7420, 7421, 7422, 7424, 7425, 7426, 7427, 7428, 7430, 7432, 7433, 7434, 7435, 7436, 7437, 7438, 7439, 7440, 7442, 7443 7444, 7445, 7446, 7447, 7448, 7454, 7464, 7470, 7472, 7473, 7474, 7475, 7476, 7477, 7478, 7480, 7482, 7483, 7485, 7486 7487, 7489, 7494, 7495, 7496, 74101, 74102, 74103, 74107, 74108, 74109, 74112, 74113, 74125, 74126, 74128, 74130, 74132 74133, 74134, 74135, 74136, 74137, 74138, 74139, 74140, 74145, 74147, 74148, 74151, 74152, 74153, 74155, 74156, 74157 74158, 74160, 74161, 74163, 74164, 74165, 74166, 74171, 74173, 74174, 74175, 74176, 74177, 74180, 74182, 74190, 74191 74192, 74193, 74194, 74195, 74197, 74242, 74243, 74247, 74248, 74249, 74251, 74253, 74256, 74257, 74258, 74259, 74260 74266, 74279, 74280, 74283, 74290, 74293, 74295, 74298, 74350, 74352, 74353, 74365, 74366, 74367, 74368, 74375, 74378 74379, 74390, 74393, 74395, 74425, 74426, 74445, 74447, 74490, 74595, 74670...

February 3, 2024

BurnRT - 556RT and 155RE USB programmer

Overview This is programmer for russian RT and RE fuse PROM chips with USB interface. I order clean pcb from chipkin and assemble. Case printed with fast speed on my Tronxy 3d printer. Assembling is a bit hard, small smd parts, lack of final documentation, but it possible. Btw, later I found video from Anatoly assembling this device from kit from kit8bit Supported chips 155РЕ3 (155RE3), western analogs SN74188N, N8223N...

January 12, 2024