Video

Where is part 2 ?

Cool. Doing exactly this for the P2000T, but choosing 3D print instead of modding a case? Why do you twist the cable? You can select the drive with a jumper as well. I also prefer to use power plugs instead of soldering, so the drive can be swapped easily. Oh, and I send you a mail on the Harlequin, but no response..... On holiday?

Please buy some pure Acetone.

Sorry! I can't waste my time watching non important information.

Ressurecting this from the dead! Did the steel molds work?

Much too long for the results!!! 😞

Just put your Harlequin 128K kit together, been waiting for the nice summer weather to work on it - Worked first go :)

not seen this until now ,good video Ben ,

Hi, Big fan of the retro computer and have several 8 bit computers in my collection, I was watching your repair of the MicroAce and noticed you have a circuit diagram which I have been chasing for a while as the MicroAce was my first computer when I was an apprentice technician and as you can see from the attachment I am trying to reconstruct past glory. This attachment is work I have done in the last 3 weeks, it is incomplete as I am am getting my information from photos and would greatly appreciate if I could have a copy of the MicroAce circuit diagram. Thank you so much, Graham Lewis Coffs Harbour NSW

There can be no AY chip in this world which would have the GI logo and a 2006 date code. GI (the IC manufacturing subdivision of it) became Microchip in 1987. They totally sanded off whatever was printed on it originally, and laser etched the GI logo etc. It must be a cheap clone.

Heb je mooi gedaan en heb wat ervan geleerd. Wist niet, dat de RGB weergave zo slecht was. Blijft een prachtige moederbord, die de moeite waard is om jaren lang volop te genieten. Was ook mijn tweede computer, maar na de Commodore 64. Na de Toastrack kwam de AMIGA 500. Vond het een interessante video vooral als het om je moederbord gaat.

Hey good to see you back to work, when is it my turn? 😅

I stopped trying to fix my spare Toastrack. I've done so many mods to it, (rewired the clock to give it a stronger output, rewriten the ROM with a few new routines, stereo output using 9 resistors and give it a speed control/pause knob). It won't fully boot with all the memory chips installed anymore. All the voltages are correct and the Diag Card says everything is fine. Very odd. Ha ha.

I like the Toastrack board, but I hate the keyboard. I found that the 48K rubber keyboard can be attached straight on to the Toastrack case using the same screw holes. LOL. I used mine like that until I got the Harelquin 128 in my 48K case.

Hey. Can you play youtube 4k 60fps on this CPU?

Hello. Where can one find an enclosure like the one used in this video, please?

Sound like YM chip was connected differently or improperly so 2 channels were swapped and 3rd channel almost muted.

Only known in existence? That makes two, I've got one too. 😄 The rom has been dumped by me with the aid of Paul Farrell and can be found included with the EightyOne emulator.

Just built a controleo3 oven. So this is what a test run does. Ramps to 75, then 150, then I guess it's allowing solder to soak? then 245 soak? then I a slow cool down until board is determined finished? Door opens at 50C assume. O.K...gives me an idea of what to expect. Maybe I can find another video before letting mine loose.

Hello. Could you tell me where are these cases sold?

Brilliant!

the facts that i want to use AY-3-8910 but its goddamn hard to find ( only SSG is easy to find )

wow. but.. how are you able to feed the keypresses if the five keyboard data pins of the ULA are not accessible via the edge connector?

It´s not needed to press the PAUSE button. You can also do this loading stuff from a PC using a stereo or mono cable

The Interface 2 cartridge slot was a quite simple design. But it is fascinating anyway. Do you sell these sleeves as a replacement part or do you have further plans regarding Interface 2 or rom cartridges?

Awesome Ben. Will be ordering with the HDMI too. Thanks again for taking this on.

I have two ROMs missing them, so will be ordering ASAP

That looks amazing good work I'm sure if you need an interface 2 I can send you one , it will be interesting to see if it folds in neatly

hello bro, i have aprobook hp laptob 6560b core i5-2 can i upgrade thr CPU to i7

3D printed rubber? I guess a 3D printed human heart is not as far down the road as I thought!

looks awesome Ben

Cool. I've got an Interface 2. But the price of cartridges is ridiculous, so I don't have any of them to test it with. The joystick ports work, though.

brill fix, you work VERY fast.

I'm going to stick my neck out here and say I actually prefer the sound of the AVR-AY, at least compared to the 8910's sound - I started searching because I was messing around with the idea of using the broken toy keyboard I have to enter notes into an AY driven by an Arduino like I did with my '1943' project except without the musical competence :). I used the 8910 for that project and will probably end up re-using it for the new one if I ever get chance to do it. Form-factor/Pinout won't be an issue for me because I'm not building a Speccy clone (this time :) ) but a pin-for-pin replacement with a sensible cost in relation to the original is cool either way and would make DIY Speccy/AY interfaces possible again for nutcases like me.

Just bought an issue 1 with low serial number should be here in couple of days.lets see if it'll work.

I know 4 years have gone by since your video however, I have the same computer, with a Tel i5-3230M is a BGA1023 microprocessor. Q) Is it this the same BGA1023 microprocessor. as your old HP ProBook 6570b? I would like to make the same upgrade as you have. Thanks

My order was probably on one of those stacks, which has meanwhile already arrived 🙂

Got a couple of recommendations that would probably make it an overall better gamepad: - a switch to alternate between ATARI and SJS. - a normal button and a turbo button, with a switch to alternate the turbo function between both buttons, so we can choose which one is the autofire. I picked up a few black chinese NES gamepad knockoffs with this goal in mind, but I haven't had the time to try to modify one.

Can you explain in more details, what is the modification to remove the yellow/cyan gosthing

Should I also complain about my repair? 😂

Cool video mode. I can't wait for the DivMMC version.

I stuffed a i7 3630qm to see if it worked with my i5 3210m . It has a 76chipset. So now I want a i7 3840qm too. Its a asus k55a

Dont forget to look at low temp solder paste. can use a heat gun to do that too. Also, try dragging to the left on the second pass

Maybe should you add a lowpass filter to the AVR AY output

Ben, you mentioned that you modified a composite to HDMI adapter for the ZX Spectrum, can you share that mod with us? I have a ZX-HD from you and have another on order along with 2 AX 128 stereo mod kits, I also got a Harlequin 128 kit and diag cart kit, your kits are the best!

max i7-3520M

That is one cool keyboard.

Yes Ben, please make the Capacitor Voltage ripple comparison Video. I haven't changed the Caps of my Issue 2 and need to be convinced 😅. There is a certain reluctance to mess around with a 40 year old working board.

Cool Keyboard. Happy new year Ben.

Philips electrolytics from any "made in uk" electronics from the 1980s are now all bad. Same occurs with Acorn computers.