 Last additions
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Video diodes and resistors174 views56k Mainboard closeup of video diodes and resistorsNov 11, 2015
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56k/64k Mainboard174 viewsMainboard of the possible 64k unit with screen wavesNov 11, 2015
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A closeup of the Gotek391 viewsOct 31, 2015
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Booting from the new Gotek floppy emulator317 viewsOct 31, 2015
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Floppyio1155 viewsFloppyio1 with the coverOct 28, 2015
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Floppyio1160 viewsThe house for Floppyio1Oct 28, 2015
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pbuff 3.2 4K ROM screen with version details198 viewsthis is from a 4K ver 3.2 ROM at the page starting from $0E00 in the upper half of the 4K EPROM.
the lower half of the EPROM is ver 2.2.Oct 02, 2015
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pbuff 3.2 rev E inside layout with C2P1 daughter board201 viewsthis is the layout I used in my pbuff 3.2 rev E. note there are several main parts missing. no transformer, no Z80 CPU. this will be reinstalled into a new standard plastic case during the restore. the layout will be rotated 90 deg clockwise like the original and the centronics plugs will be flipped upside down to remove the twist in the ribbon inside the case. a db25 will be added for the output instead of directly running the ribbon out between the centronics plugs on the back panel,Oct 02, 2015
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pbuff 3.2 oohey gooey in ROM174 viewsDon McKenzie's little ditty hiding inside the ROM dump.Oct 02, 2015
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pbuff 3.2 rev E front panel layout183 viewsthis is the front panel layout I used for my pbuff 3.2. this is not the recommended case, but a metal one.
when I restore it the green LED will be removed, and a red illuminated mains power switch installed instead. the layout will be more like the original; the right hand knob is a rotary A-B switch to select which computer input to use. I might use a toggle switch during restore because this one is a bit mushy now.Oct 02, 2015
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pbuff 3.2 C2P1 back panel layout168 viewsthis is the back panel of my pbuff 3.2 with C2P1 centronics connectors. the rusted connectors will be replaced when I restore it. the small button is the test button and will be moved to the front during the restore.Oct 02, 2015
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screen shot of pbuff 3.2 4K page 1416 viewsthis is a screen shot from my EPROM reader showing the content of page 1 of the PBUFF 3.2 4K EPROM. I don't actually recall where I got this 4K EPROM from because it's been ~30 years since I built it. it might have been removed during an update to 8K EPROM.Oct 02, 2015
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