Sinclair ZX80 / ZX81 Forums

I found with the ZX81 and a ZX8-CCB there is variance in results from one TV to the next. I have a normal resolution old LCD TV that easily produces a perfect picture, an old glass screen TV that normally does, a 37” Sony Bravia that is either perfect or awful and a small LG which is extremely pick...

There are three not two ULA types as Mark has already pointed out ULA 2C158E being the earliest. As for what's in your 81 if the board is red when viewed through the vents underneath then most probably it has the later back porch ULA 201E, if the board is green then possibly one or other of the two ...

Paul wrote: ↑

Tue Sep 04, 2018 12:16 pm

So we are at
"allow 28 days for delivery" again in good old Sinclair manner

Except that unlike Sinclair Charlie will deliver on time and with better after sales service.

Hi zxooner and welcome to the forum. :D A most excellent art package called ZX4paint can be found here (not sure how low res it is)... http://www.rwapsoftware.co.uk/zx81/zx81_software.html Scroll to screen bottom and it's the second to last title. Created by French programmer Dominique Contant in Fo...

Woohoo, it all works! It'll even load and save, although it won't load the four commercial ZX81 games I have (Psion Flight Simulator, QS Defenda, JD Arcades, and Adventure C: The Ship Of Doom); but this could be anything from cassette tracking problems to the 16kB rampack not working properly on a ...

2 on SMR now https://www.sellmyretro.com/offer/details/ZX81-Dragon&%23039;s-Lair-SD-card-(-for-use-with-Real-ZX81-+-ZXpand,-hardware-not-included!-)-4265 you did know you can download the sd image FOC from Baggers himself ??? http://www.jimbagley.co.uk/ZX81DLairSD.zip regards Andy Thanks. I followe...

Tunes created on/for the Spectrum AY units will sound a couple of semitones lower when used with an 81 AY device due to these devices differing frequencies,it should be noted and some of the lower notes can sound a bit jarring especially the envelope sounds when played back on a Zonx/81 combination.

Sage advice as always Mark.

Thanks Andy.

Managed to get it but can only assume its some kind of demo version as the tap to begin jobby just loops a video over and over and the play keys do nothing.(tried on three different spands including a plus)

The Emulator version just freezes on the start screen.

2 on SMR now https://www.sellmyretro.com/offer/details/ZX81-Dragon&%23039;s-Lair-SD-card-(-for-use-with-Real-ZX81-+-ZXpand,-hardware-not-included!-)-4265 you did know you can download the sd image FOC from Baggers himself ??? www.jimbagley.co.uk/ZX81DLairSD.zip regards Andy I get a 404 error,Andy,w...