New (and last ?) inbound
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
Thanks !
:)
:)
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
Completely forgot the Tandy...
It works great now with this XT CF IDE model. The CF CARD is partitioned and all I have to is installing DOS and Windows 3.1
A peek from the rear of the machine:
I consider the project finished.
Guess that due to a lack of space, the 1000EX will soon have to find a new home.
:(
It works great now with this XT CF IDE model. The CF CARD is partitioned and all I have to is installing DOS and Windows 3.1
A peek from the rear of the machine:
I consider the project finished.
Guess that due to a lack of space, the 1000EX will soon have to find a new home.
:(
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rubber_jonnie
- Site Admin

- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: New (and last ?) inbound
Nice work :)HigashiJun wrote: 06 Jun 2025 10:29 Completely forgot the Tandy...
It works great now with this XT CF IDE model. The CF CARD is partitioned and all I have to is installing DOS and Windows 3.1
1.JPG
A peek from the rear of the machine:
2.JPG
I consider the project finished.
Guess that due to a lack of space, the 1000EX will soon have to find a new home.
:(
Shame it'll have to go to a new home, but I understand. Whoever gets it will have a nice machine.
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...
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
@rubber_jonnie
Thank you !
Thank you !
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
I guess it won't be a never ending story, but I have just built something new for my Tandy:
Have to flash the EEPROM now and test if everything is all right...
Have to flash the EEPROM now and test if everything is all right...
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rubber_jonnie
- Site Admin

- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: New (and last ?) inbound
Neat :)HigashiJun wrote: 30 Oct 2025 09:52 I guess it won't be a never ending story, but I have just built something new for my Tandy:
1.JPG
2.JPG
Have to flash the EEPROM now and test if everything is all right...
Is it some sort of XT IDE type board?
I see it says 4 in 1 board, so what else does it add?
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...
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
@rubber_jonnie
It's a 4 in 1 board as you wrote, from Rob Krenicki:
https://github.com/rkrenicki/Tandy-EX-HX-4in1
It adds the following stuff:
- RTC (I have omitted the related parts, since I already have one fitted)
- XT-IDE
- 640 KB RAM
- RS232 serial port
But the most important is it has a passthrough connector, allowing me to fit a VGA card and a sound card.
It's a 4 in 1 board as you wrote, from Rob Krenicki:
https://github.com/rkrenicki/Tandy-EX-HX-4in1
It adds the following stuff:
- RTC (I have omitted the related parts, since I already have one fitted)
- XT-IDE
- 640 KB RAM
- RS232 serial port
But the most important is it has a passthrough connector, allowing me to fit a VGA card and a sound card.
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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: New (and last ?) inbound
The smoke test was OK.
The 640 KB RAM is also recognised... So far so good.
Further tests tomorrow.
8-)
The 640 KB RAM is also recognised... So far so good.
Further tests tomorrow.
8-)
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rubber_jonnie
- Site Admin

- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: New (and last ?) inbound
Nice little upgrade that :)HigashiJun wrote: 30 Oct 2025 11:48 @rubber_jonnie
It's a 4 in 1 board as you wrote, from Rob Krenicki:
https://github.com/rkrenicki/Tandy-EX-HX-4in1
It adds the following stuff:
- RTC (I have omitted the related parts, since I already have one fitted)
- XT-IDE
- 640 KB RAM
- RS232 serial port
But the most important is it has a passthrough connector, allowing me to fit a VGA card and a sound card.
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
- Site Admin

- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: New (and last ?) inbound
:(
A lack of smoke is always a good result :)HigashiJun wrote: 30 Oct 2025 12:31 The smoke test was OK.
The 640 KB RAM is also recognised... So far so good.
Further tests tomorrow.
8-)
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...
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