I think you may want to bypass the built-in 5v regulator and supply the other voltages directly (e.g. use the regulated 5v from the USB and then create a more efficient +/- regulated rails from that... Probably an isolated brick)
Thanks, yes in the video's configuration Q1 still gets roughly as hot as it does with the normal power supply. The simple USB setup I showed in the last video kept the case very cool. I think your idea is a good one, but getting the whole computer to work (this video) is the first step. More experiments to come. I melted some resistors yesterday :-) but the CoCo 2 is fine!
Did you ever find a permanent solution? My transformer is completely blown on mine and but I was able to at least see the machine power on using the usb setup from your last video.
Can you be more specific with what worked? Did the machine function, except the serial & cassette in? (can you reach out to me on Facebook Color Computer group?)
I had actually watched it, but, not being a hardware guy, I probably didn't understand a lot of it. :)
Yup, it was just funny to hear the entire discussion which was, of course, answered in the video :-)
@@hallorant - Hopefully I did better today!
@@CurtisBoyle Outstanding, I enjoyed the show!
I think you may want to bypass the built-in 5v regulator and supply the other voltages directly (e.g. use the regulated 5v from the USB and then create a more efficient +/- regulated rails from that... Probably an isolated brick)
Thanks, yes in the video's configuration Q1 still gets roughly as hot as it does with the normal power supply. The simple USB setup I showed in the last video kept the case very cool. I think your idea is a good one, but getting the whole computer to work (this video) is the first step. More experiments to come. I melted some resistors yesterday :-) but the CoCo 2 is fine!
Did you ever find a permanent solution? My transformer is completely blown on mine and but I was able to at least see the machine power on using the usb setup from your last video.
Can you be more specific with what worked? Did the machine function, except the serial & cassette in? (can you reach out to me on Facebook Color Computer group?)
i had my color computer 2 running on 8 d-cell batterys