PDP-8/i Front Panel PCB
<UL>
<LI><b>1switch</b> is an exploration of ideas about using reed switches to
construct switch substitutes that fit in the original footprints.</LI>
<LI><b>M900dec</b> is a drawing of DEC's M900 paddle card, which contains
the indicator drivers, as well as connecting to the front panel cabling.</LI>
<LI><b>M900</b> is my version of the M900 indicator driver card, which
provides through-hole (ribbon cable header) connections as well as DEC's
surface mount.</LI>
<LI><b>d-cs-8i-0-27</b> is a schematic of the M900 indicator sockets in
the 8/i backplane.</LI>
<LI><b>8iPanelDec</b> is a drawing of DEC's indicator PCB, using the
surface mount ribbon connectors.</LI>
<LI><b>8iPanel</b> is my version of the indicator PCB, allowing through-hole
headers for ribbon connection, as well as DEC's original surface mount.</LI>
<LI><b>8iPanelLED</b> is a version of 8iPanel with current limiting resistors suitable for
the use of LEDs instead of indicator lamps.</LI>
<LI><b>LEDPanel</b> is a version of 8iPanel with current limiting resistors suitable for
the use of LEDs instead of indicator lamps.</LI>
<LI><b>LEDPanelmpsl</b> is a version of 8iPanel with current limiting resistors suitable for
the use of LEDs instead of indicator lamps.</LI>
<LI><b>LEDPanelECOl</b> documents workarounds for issues in LEDpalenmpsl.</LI>
<LI><b>LEDPanel7-20l</b> fixes the known issues in LEDpalenmpsl (as of July 2020).</LI>
<LI><b>LEDproto</b> is a version of my indicator panel, broken in two, so it
could be ordered from a protoype shop.</LI>
for ordering from a prototype house.</LI>
<LI><b>8iSwitches</b> is a drawing of a replacement for the switches PCB.</LI>
<LI><b>8iSwitchesOK</b> is a checkpoint of the replacement for the switches PCB.</LI>
<LI><b>PiPanel</b> is an exploration of interfacing a Raspberry Pi to the switches and lights.</LI>
<LI><b>G793</b> is a pull-up and clamping module for the switch register of the PDP-8/i.</LI>
<LI><b>Perspex</b> is a drawing of the artwork that mounts in the front of the PDP-8/i panel.</LI>
<LI><b>Guide</b> is a drawing showing placement measurements for the PDP-8/i panel.</LI>
<LI><b>TactileSw</b> is a drawing of an attempt to use two tactile switches with a slide to replace a slide switch.</LI>