Tech discussion > 4K,6K,8K Series
Random SSL Projects Update
horizonsound:
Hi All,
A bit has been going on over the last few months that has been keeping me very busy.
First up is the refurbishment of the SL651E, and the reverse engineering of the centre section cards. The cards are almost all done, excepting the 33 & 34. Parts availability is becoming a serious issue.
Last weekend I picked up an entire rack with 2x 661E PSUs, Changover Unit, 665E PSU, G+ Computer with TR and 4/100C processor!!!, and a remote keyboard. The computer started up perfectly, and TR worked as well, but the PSU was in real bad shape and let off the smoke of death, so I've stripped it and turning it in to a switch mode PSU.
Lastly I've been looking in to the TR computer, and have started reverse engineering that. CPU and HRG boards are done - more as a backup if my current ones fail - but with hopes to create something as a more modern replacement.
Matt Sartori:
I am completely speechless ....wow amazing work...
horizonsound:
Thanks Matt! It's certainly keeping me busy. I have a long list of tasks for the coming months ahead.
For now...
Completed the switchmode conversion on the computer PSU.
Replaced all fans in the computer with 12v and a separate power supply.
Fixed the remote keyboard - it was a blown RS232 chip.
Fixed the video distribution card. Recap, and blown BC184 which provides the 7v for the DS3630 sync buffers. That chip is very sensitive to having the correct supply voltage.
Bought a cheap "working" Dell 17" monitor on FB marketplace ($5). Turned out the backlight driver transistors were shot, so another thing to fix, but all good now.
oyanliz:
Amazing post!! Amazing projects!! Amazing skills!!
Well done!!
Oihan
pascal.verdet:
Great, Nice !!!
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