ETI-733 RTTY Decoder (Inside)77752 viewsNote that the 4046 PLL chip is missing.
Colour board interface wiring17381 viewsStandard main board with colour board interface wiring.
prototype PSU for Dream 6800/68025790 viewshome made PCB with +5V 3A, -5V 1A, 12V 1A regulators. +5V uses 2576T-ADJ. tested on bench with 2A load with no signs of overheating. standard 78xx for the other voltages.
new version will have additional -12V with only slightly larger PCB.
Dream 6802 PCB by RIE bottom scan3230 viewsX-Ray like scan of the bottom side of the RIE 6802 PCB.
2013 Refurb - Completed Beeboard (bottom view)3122 viewsCompleted Beeboard. A few mods included
2595 views
2140 views
TEC-1 before assembly1892 viewsYes, there's still a TEC-1B that hasn't been put together. More to come...
20-07-12 Keyboard adapter soldering jig1726 viewsTo solder up the keyswitch adapters, I used an old piece of scrap experimenter board with a female 40pin connector mounted.
This makes it very easy to keep the pins perfectly straight whilst soldering the tiny board.
TIP: Solder one leg, then with a small screwdriver, press directly between the two pins while re-flowing the solder on the first leg. The tiny board will then be sitting flush on the header. Solder the second pin, wait 5 seconds, then remove :o)
ETI-733 RTTY Decoder kit1693 views
Viatel VDU circuit (top)1566 viewsThis was fitted to standard Microbee models to allow the correct resolution for Viatel to be displayed. Premium models had this built in.
Some Dream 6800 documentation1562 viewsPic by Rod Jenkins
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