Yep you just need a SCR and a couple resistors to set the bias voltage.rubber_jonnie wrote: ↑Tue Oct 17, 2023 11:37 am I suppose it would definitely be a possible thing to do though and has the potential to save not only the RAM but also the LM1889 that also takes 12v.
Stuff and Things.
Re: Stuff and Things.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
- rubber_jonnie
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Re: Stuff and Things.
Sounds coolexxos wrote: ↑Tue Oct 17, 2023 11:42 amYep you just need a SCR and a couple resistors to set the bias voltage.rubber_jonnie wrote: ↑Tue Oct 17, 2023 11:37 am I suppose it would definitely be a possible thing to do though and has the potential to save not only the RAM but also the LM1889 that also takes 12v.

Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
- rubber_jonnie
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Re: Stuff and Things.
And the Game Gear sound board arrived today from Zedlabz.
It's a 100% drop in replacement for the original, so looks like it came like that from the factory
Here it is before closing up:
I have to say the improvement in sound quality and volume is very impressive.
It's a 100% drop in replacement for the original, so looks like it came like that from the factory

I have to say the improvement in sound quality and volume is very impressive.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Stuff and Things.
@rubber_jonnie heres the old IBM thinkpad that I was telling you about.
You know they made them right when the paint rubs away but they still happily power up. It’s running win 98.
You know they made them right when the paint rubs away but they still happily power up. It’s running win 98.
If it ain't broke, test it to Destruction.
- chronicthehedgehog
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Re: Stuff and Things.
That brings back a few memories. I didn't buy a PC until '98 - the first game I played was Half Life. My mind was blown 

- rubber_jonnie
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Re: Stuff and Things.
Nice, and mine seems to have picked up some design cues from yours


Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
- rubber_jonnie
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Re: Stuff and Things.
OK, I'm at it again with the laptops:
This time it's a Dell Inspiron 1525 that my brother gave me, but the screen was damaged. I managed to find a parts only machine with a good screen for just £18.52
so am in the process of transferring the parts over.
I may even get enough bits from the parts machine to make my money back
This time it's a Dell Inspiron 1525 that my brother gave me, but the screen was damaged. I managed to find a parts only machine with a good screen for just £18.52

I may even get enough bits from the parts machine to make my money back

Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
- rubber_jonnie
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Re: Stuff and Things.
Well, big day of sorting out stuff.
I decided I needed to rationalise my cabling a bit, particularly power to neaten things up, and also to ensure everything can be plugged. This is with everything pulled out.
Several hours later, all the power has been moved around, with all but my main power bar in the power troughs under the desks. Much more space now and only the video cables and a small number of other cables on top.
Unfortunately during the move, my TRS-80 PSU seems to have died, so that's on the bench now for repair. Photos to follow, it's a pretty horrible design.
I decided I needed to rationalise my cabling a bit, particularly power to neaten things up, and also to ensure everything can be plugged. This is with everything pulled out.
Several hours later, all the power has been moved around, with all but my main power bar in the power troughs under the desks. Much more space now and only the video cables and a small number of other cables on top.
Unfortunately during the move, my TRS-80 PSU seems to have died, so that's on the bench now for repair. Photos to follow, it's a pretty horrible design.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
- HigashiJun
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Re: Stuff and Things.
Love that room !


- rubber_jonnie
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Re: Stuff and Things.
Thank you. It's always a bit in motion, but much happier now the power cables are better hidden, as everything is plugged in now and controlled by one master switch on my master power bar, whereas before I did have to plug in some stuff on demand, now everything that is permanently out is plugged in.
I'll still need to plug in some stuff, but only the stuff that I don't put out regularly.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...