Create ULA for €5?

Discussions about Sinclair ZX80 and ZX81 Hardware
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amauget
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Re: Create ULA for €5?

Post by amauget » Sun Jun 11, 2017 8:38 pm

Fantastic work !
Count me in as well.
Antony

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povvercrazy
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Re: Create ULA for €5?

Post by povvercrazy » Mon Jun 12, 2017 12:08 am

I'd definitely be interested, don't mind prepaying or even buying a kit to solder myself

gozzo
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Re: Create ULA for €5?

Post by gozzo » Sat Jun 17, 2017 5:05 pm

whoah, definitely interested in a few if they can genuinely be sold for around 5 euro/pound or whatever!!!

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Paul
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Re: Create ULA for €5?

Post by Paul » Sat Jun 17, 2017 6:24 pm

gozzo wrote:
Sat Jun 17, 2017 5:05 pm
whoah, definitely interested in a few if they can genuinely be sold for around 5 euro/pound or whatever!!!
There is a big difference between building an ULA at 5€ and selling an ULA at 5€
If I build myself something I only count in the parts I need to buy, not those in my toolbox ;)
In theory, there is no difference between theory and practice. But, in practice, there is.

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PokeMon
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Re: Create ULA for €5?

Post by PokeMon » Sat Jun 17, 2017 7:35 pm

The title is maybe makes confusion. This was initially planned to realize a home-brew ULA project with just the chip and a cut piece of a prototype board and wiring. I think it is not possible to realize this ULA project (pin compatible plug replacement just to be used) for this low price. As in my experience I would say it could be in the range of 10-20 EUR and this would be okay for me. 8-)

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sirmorris
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Re: Create ULA for €5?

Post by sirmorris » Sat Jun 17, 2017 7:44 pm

Exactly. With the work and personal outlay and time and effort, 5E was veeeeery optimistic. And like Pokemon said - Paul's work is not related to the original title of the thread.
--=== ZXpand+ ... A more moderner all-in-one upgrade solution for ZX81 ===--
* SD/MMC storage * 32K Hires-capable RAM * AY sound chip * Joystick port * Serial *
* BASIC enhancements - plug & play * Reset button * Auto-boot facility *

gozzo
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Re: Create ULA for €5?

Post by gozzo » Sat Jun 17, 2017 8:02 pm

in that case maybe one or two at the most.... bit misleading title...

Lardo Boffin
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Re: Create ULA for €5?

Post by Lardo Boffin » Sat Jun 17, 2017 8:36 pm

10 to 20 euros is good for me as well! Based on what I have seen elsewhere it's always best to at least double the initial estimate.

And the title is a question!
ZX81 iss 1 (bugged ROM, kludge fix, normal, kit)
Iss 3 with ZXVid, another in nearly perfect box
TS 1000 iss 3, ZXPand AY, ZX8-CCB & ZX-KDLX
TS 1500
TS 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48k
Toastrack + DIVMMC future

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Paul
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Re: Create ULA for €5?

Post by Paul » Sat Jun 17, 2017 8:42 pm

sirmorris wrote:
Sat Jun 17, 2017 7:44 pm
Exactly. With the work and personal outlay and time and effort, 5E was veeeeery optimistic. And like Pokemon said - Paul's work is not related to the original title of the thread.
Sorry for interfering in this homebrew thread.
I don't want to mislead.
When I will offer the ULA for selling I will announce this in a new thread and sell via SMR.
There is no preorder list.
But it is good to see people interested in buying one.
Kind regards Paul
Last edited by Paul on Sat Jun 17, 2017 8:47 pm, edited 1 time in total.
In theory, there is no difference between theory and practice. But, in practice, there is.

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mrtinb
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Re: Create ULA for €5?

Post by mrtinb » Sat Jun 17, 2017 8:44 pm

I actually started this thread for my ULA project. I've not come so far yet, but it's not in the grave. :)
Martin
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube

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