Steve M wrote: ↑Sat Apr 25, 2020 12:31 am
I see the meme about the Oric-1 having a bad keyboard is spreading.
Definitely better than the rubbery horror of the Spectrum keyboard (replicated on other things, such as some BOSS Synths)
In the YouTube video, the "faulty regulator" seemed actually okay to me, the "3.9v" output was caused by mis-measuring the 7*9*05 regulator as if it was a 7*8*05 (Look at the probe swap-over, he seemed to do middle pin to top, middle to bottom, assuming the middle to be common. On a 7905, it's not).
So he actually measured the drop
across the regulator (3.9v), and the input voltage (8.9v). Which would make the output 5v
Fortunately he caught this before replacing it with a DC-DC module of completely the wrong type.
He also said he removed the speaker to get to record the audio from it. I guess he missed that the audio output is at the cassette port (pins 4,5) from not having/reading the manual. But also, the speaker could stay in, if you are just going to leech off the signal!