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20 November 2020, 12:30
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#1 |
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Registered User
Join Date: Oct 2020
Location: Madrid
Age: 40
Posts: 196
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For sale: New manufactured Amiga 500 trapdoor memory expansion
Greetings,
During these past times I was developing a workaround in order to use the remaining memory chips from an accelerated Atari ST project. This project requires a change on installed memory due to memory acceses are totally upgraded, new memory chips were used. Now, these memory chips are used for an Amiga 500 chip RAM expansion, its a 512 KB trapdoor memory expansion. Image links for users that have problems with embedded images: https://preview.ibb.co/mDU4o8/ara.jpg https://preview.ibb.co/dRqr1T/SAM_2671.jpg https://preview.ibb.co/itaxao/SAM_2667.jpg https://preview.ibb.co/jsOuMT/SAM_2669.jpg https://preview.ibb.co/cZX4MT/20180520_20.jpg https://preview.ibb.co/kh9Uo8/20180520_204.jpg https://preview.ibb.co/chS4MT/20180520_2048.jpg The results are these:   and the working results are these:  For Amiga 500+  For Amiga 500    Memory tests passed to the trapdoor memories, Memory Test program:  Starting the test with a 512 KB trapdoor installed:  1.5 MB test:  I manufactured several of these; these memory modules are hand manufactured at my home in Spain  and tested prior to be sent. These are sent on tracked packages also for international destinations. The module includes short-circuit protection resistances and enable/disable switch. Price is 24€ per unit (around 24 $ USD , really depends on current exchange); Spain tracked package cost 6€ and Intenational tracked cost 8€ Payment method: Paypal Original design post (Spanish) is: https://www.gp32spain.com/foros/show...-Amiga-500-500 Last edited by masteries; 22 December 2022 at 19:28. |
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07 January 2021, 12:50
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#2 |
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Registered User
Join Date: Oct 2020
Location: Madrid
Age: 40
Posts: 196
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Up! There are units available!
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22 December 2022, 19:29
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#3 |
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Registered User
Join Date: Oct 2020
Location: Madrid
Age: 40
Posts: 196
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Up! there are units available!
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03 October 2023, 10:04
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#4 |
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Registered User
Join Date: Oct 2020
Location: Madrid
Age: 40
Posts: 196
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Available units!
These includes all recommended resistances from Commodore design documents, and an easy to handle enable/disable lever! As well, it is available in 1 MB version for Amiga 500 Plus at 32€ |
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03 October 2023, 10:10
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#5 |
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Senior Member
Join Date: Jun 2001
Location: Germany
Posts: 1,667
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Nice work, I like how small it is. But you should re-consider prices:
https://amigastore.eu/710-amiga-500-...ion-rtc.html#/ https://amigastore.eu/en/711-amiga-5...expansion.html |
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