by hegars | Dec 30, 2021 | Uncategorized
Date codes on most of the parts are all mid 1998 Zones A – Power Control B – AMD 80c188 16bit Microprocessor External Ram External ROM B1 – Epic Hi16c550 FIFO UARTS HIN238 Transceivers C – Davicom DM9008 ISA Plg and Play Super Ethernet...
by hegars | Dec 26, 2021 | Uncategorized
Building a retro Chepernet 10Base2 network for retro computers and device of the time, Much like I used to in the old days circa 1999 Ethernet Specification IEEE 802.3a 10Base2Transmission Speed10MbpsTransmission MediaRG-58 50Ω COAXMaximum Segment Length185mMaximum...
by hegars | Sep 5, 2021 | Electronics, Uncategorized
The problem I’m trying to solve is to allow for the detection and use of the center position on the SALECOM T80-T three pin series switches. Normally in the center position of these 3 pin switches pin 2 is totally disconnected in that position where as in...
by hegars | Aug 19, 2021 | Uncategorized
https://tinyurl.com/yzwxsgem https://en.wikipedia.org/wiki/Binary_decoder Use in a switch to detect and use the off position https://tinyurl.com/yjy5d5tq Chips SN7404 Hex InvertorSN7414 SN7408 Quad AND gate or SN74138 3-Line To 8-Line Decoders/Demultiplexers Test...
by hegars | Aug 15, 2021 | Uncategorized
What I can See has a 605 telephone plug with “mode 3” markings 8x RJ12 Sockets Altera EP900 PLD 5V logic Pictures
by hegars | Aug 15, 2021 | Uncategorized
Main Phones Motorola D368 1998- Motorola V2088 Motorola L6 Nokia Something Black Phone?? Motorola V3X Apple iPhone 4 Apple iPhone 6 2016 – 2021 Google Pixel 5 2021- Current SIDE PHONES Samsung J5...
