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I have an H89 with an H37 controller and two half height high density drives that my father and I built in the 70s. I repaired it a few years back; voltage regulator, rectifier diodes, and some caps.
12:18 Why Heath⁉Why would you do this to me❓Indeed Heath is your friend up to a point. It's never personal. Only bidness. 😄 But at least there's a positive forward happy note at the end. YEAH!
Good morning, I am restoring one of these computers and I would like to know how many volts the 430uf electrolytic capacitor that is next to the silver ones is, the computer arrives to me disassembled and with that capacitor missing.
I don't have that machine out on the bench to look at at the moment, but it ought to be listed in the parts list in the assembly manual. Depending on the revision of the machine and whether it's an H19 or H89, some of those positions are meant to be left unpopulated, IIRC.
Yes, but it doesn't indicate the voltage just in case I used a 25v, this machine is very disassembled, I think I managed to put it together but there is one thing I can't find, the R1 brightness regulator, I'm watching your videos to see where it is connected, Since it doesn't arrive in the machine, I'm going to have to assemble the cable and buy a 500 ohm potentiometer. The initial problem is that the diode bridge is burned out.
I have an H89 with an H37 controller and two half height high density drives that my father and I built in the 70s. I repaired it a few years back; voltage regulator, rectifier diodes, and some caps.
12:18 Why Heath⁉Why would you do this to me❓Indeed Heath is your friend up to a point. It's never personal. Only bidness. 😄 But at least there's a positive forward happy note at the end. YEAH!
Ayyyyy there he is!
I for one, miss the gravely dulcet tones of Mr. Lee Adamson and this YT channel. 👍
Good morning, I am restoring one of these computers and I would like to know how many volts the 430uf electrolytic capacitor that is next to the silver ones is, the computer arrives to me disassembled and with that capacitor missing.
I don't have that machine out on the bench to look at at the moment, but it ought to be listed in the parts list in the assembly manual.
Depending on the revision of the machine and whether it's an H19 or H89, some of those positions are meant to be left unpopulated, IIRC.
Yes, but it doesn't indicate the voltage just in case I used a 25v, this machine is very disassembled, I think I managed to put it together but there is one thing I can't find, the R1 brightness regulator, I'm watching your videos to see where it is connected, Since it doesn't arrive in the machine, I'm going to have to assemble the cable and buy a 500 ohm potentiometer. The initial problem is that the diode bridge is burned out.
Thanks for skipping the pain in the asss footage
This thing is being a tough repair, lol. I think BOTH power transistors on the video board are blown. Fun times.
Audio is a bit quiet.
WHAT?
Yep Ill second that. Could do with more volume.
OK! I'LL TURN UP THE GAIN MORE NEXT TIME!