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Re: 16k Sinclair issue 1 pack
Posted: Mon Feb 26, 2024 11:07 am
by msknight
Unless someone says different, I'm going to go for ....
BAT85 30V 200mA Small Signal Schottky Diode
Re: 16k Sinclair issue 1 pack
Posted: Mon Feb 26, 2024 1:28 pm
by 1024MAK
msknight wrote: ↑Mon Feb 26, 2024 11:07 am
Unless someone says different, I'm going to go for ....
BAT85 30V 200mA Small Signal Schottky Diode
They should be fine
Mark
Re: 16k Sinclair issue 1 pack
Posted: Thu Feb 29, 2024 11:04 pm
by msknight
Firstly ... I'm still waiting for the Schottky diodes to arrive but... here's the question...
When I used the silicone diodes I was showing a signal well below the 1v demonstrated in the diagrams -
https://www.sinclairzxworld.com/viewtop ... 497#p54497 - so why wasn't this good enough to work?
Re: 16k Sinclair issue 1 pack
Posted: Fri Mar 01, 2024 4:16 pm
by msknight
The shottky diodes arrived, and it works. I documented it here... if anyone notices anything I've got wrong, please shout.
https://msknight.com/bbc/zx81-rampack.html
Once the vintage RAM issue is sorted, then I think I'm done.