VOGONS


Beyond a replica - the Covox Blaster

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Reply 20 of 24, by matze79

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Like here:

PPJoySetup.zip

or using sneskey dos or sneskey 9x.
It maps keyboard keys to joystick.

Dream Blaster also did a Adapter:
https://www.serdashop.com/GAMEPADLPT

it works very well i own actual 4 Variants of LPT Adapters.
Maybe some Notebooks will struggle because of voltage drop across diodes.

https://www.retrokits.de - blog, retro projects, hdd clicker, diy soundcards etc
https://www.retroianer.de - german retro computer board

Reply 21 of 24, by Benedikt

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What about this one?

4310R-R2R-104LF.jpg

This is the exact type of resistor network that I used in my replicas of the Covox Speech Thing and the FTL Sound Adapter. The latter also has a digital (Atari) joystick port.
With the R2R network in SIL package you would barely even need a PCB. You could basically solder it straight to the socket strip.
You don't really have to care about the 2% tolerance. They are just for the entire network. The resistors within the network should be even more similar than individual resistors from the same batch.

Reply 22 of 24, by dionb

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Benedikt wrote on 2020-06-09, 20:18:
What about this one? 4310R-R2R-104LF.jpg […]
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What about this one?
4310R-R2R-104LF.jpg

This is the exact type of resistor network that I used in my replicas of the Covox Speech Thing and the FTL Sound Adapter. The latter also has a digital (Atari) joystick port.
With the R2R network in SIL package you would barely even need a PCB. You could basically solder it straight to the socket strip.
You don't really have to care about the 2% tolerance. They are just for the entire network. The resistors within the network should be even more similar than individual resistors from the same batch.

Even better - and a testament to how awful the Bournes site was that I couldn't find it 😮

Unfortunately same thing applies here - can't get it locally, so will need to wait until I do a big Mouser order...

matze79 wrote on 2020-06-09, 19:51:
Like here: PPJoySetup.zip […]
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Like here:
PPJoySetup.zip

or using sneskey dos or sneskey 9x.
It maps keyboard keys to joystick.

Dream Blaster also did a Adapter:
https://www.serdashop.com/GAMEPADLPT

it works very well i own actual 4 Variants of LPT Adapters.
Maybe some Notebooks will struggle because of voltage drop across diodes.

Looking at some of those schematics they use parallel port pins 5, 7 and 9. Those are also in use for the Speech Thing (sound output via pins 3, 5, 7, 9, 11, 13, 15 and 17). Doesn't sound like that will work together.

Reply 23 of 24, by matze79

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It actually works with covox together:

https://www.retrokits.de - blog, retro projects, hdd clicker, diy soundcards etc
https://www.retroianer.de - german retro computer board

Reply 24 of 24, by Benedikt

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You could also use a 4610X-R2R-104LF network instead of the 4310R-R2R-104LF network.
They have the same footprint, are electrically identical and are usually cheaper because of their more primitive package (dipped rather than molded on).
They just happened to be out of stock when I built my LPT DACs.