Thanks Nick, I'll try that.
Back in my day I mostly used 4000 CMOS, I didn't do much with TTL.
On Wednesday, 27 September 2023 at 11:23:17 UTC+1 Nick Sargeant wrote:
> I'd agree with the above. To make sure you are avoiding any indeterminate
> states, pull all of the inputs up to +5v with a resi
I'd agree with the above. To make sure you are avoiding any indeterminate
states, pull all of the inputs up to +5v with a resistor of about 2k2 to
4k7. Then, for the inputs you want low, jumper those inputs to ground. The
pull-up resistors will mean you get a good solid '1' without the jumper,
I tried those suggestions and nothing changed, there's around 4ma total
through the LEDs now so it shouldn't be in meltdown mode.
On Tuesday, 26 September 2023 at 17:45:06 UTC+1 Craig Garnett wrote:
> Thanks,
> I'll give those suggestions a go.
>
> On Tuesday, 26 September 2023 at 16:05:17 UTC+1
