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Author Topic: Amiga 500 Plus 1 MB trapdoor chip RAM expansion  (Read 2663 times)

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Offline masteriesTopic starter

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Amiga 500 Plus 1 MB trapdoor chip RAM expansion
« on: August 30, 2018, 01:18:55 PM »
Greetings,

This board is the adaptation of the previous version in order to carry 1 MB and so the Amiga 500 Plus can get the most out of it.

It has been done using the "Chip Over Chip" technique,


It uses a shielded cable needed for the upper chip.
Its connection have been fixed with hot melt glue,
so that the additional assembly is well secured.

Like the previous model, it includes the short-circuit protection resistances and the enable lever  ;)


Attention: this model is exclusive to Amiga 500 Plus, the owners of a normal Amiga 500 who are interested
they must acquire a 512 KB model board that is suitable for them and also costs less (I remind you that the 512 KB model costs 21€ compared to 35€ for this).


Image links:














Memory tests passed to the trapdoor memories,


Memory Test program:





Starting the test with a 1 MB trapdoor installed:




2 MB test:






Board price is 35€ per unit; spanish national tracked shipmet cost 4€ and international tracked shipment cost 6.1 €


Its the cheapest 1 MB trapdoor memory for Amiga 500 Plus, due to I hate retro-speculators.


« Last Edit: October 03, 2018, 12:58:11 PM by masteries »
 

Offline masteriesTopic starter

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Re: Amiga 500 Plus 1 MB trapdoor chip RAM expansion
« Reply #1 on: October 03, 2018, 12:58:31 PM »
Up!  There are units available!
 

Offline masteriesTopic starter

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Offline masteriesTopic starter

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Re: Amiga 500 Plus 1 MB trapdoor chip RAM expansion
« Reply #3 on: July 22, 2020, 07:15:02 PM »
Up!

There are units available!