Computer for rebuild Delta aka rebranded ZX Spectrum+
Rebuild done Just 128k RAM and logic here
First boot after rebuild With MB-02+ attached.
Runnig 128k demo Melange
Looks like it works Rebuild inside
128k RAM working Closer look to logic
Oh crap, a glitch appeared Commando hung, but im2 still running. This was fixed in GAL rev3
Damn, anoter one... A glitch apperared also in +3 RAM layout. This mode was later removed in GAL rev3, in order to free terms for some fine tuning of equations
Simple AY interface built in Circuit was based on Melodik AY interface