Wonder if anything survived.
Little 3B went to war...
Little 3B went to war...
I had never seen the inside of a diode.. and that capacitor...
Wonder if anything survived.
Wonder if anything survived.
-
1024MAK
- Posts: 5118
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: Little 3B went to war...
On boards that have the DC/DC converter circuitry modification, in the D12 position a resistor is actually fitted, the value and type being 2.2kΩ 5%, 0.25W.
So to kill that, well…
Can’t imagine any of the 4116 (or equivalent) DRAM chips are functional…
Mark
So to kill that, well…
Can’t imagine any of the 4116 (or equivalent) DRAM chips are functional…
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.