For Sale RAM Chip Tester for Commodore, Atari, Apple & More

[Watson]

Declaring interest.

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It's my first attempt in Amibay. Sorry if i'm not confortable

Message the seller @tops4u if not done so already.

You can do this by hovering your pointer over the members username and then click the send direct message.

 

[tops4u]

Declaring interest.

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It's my first attempt in Amibay. Sorry if i'm not confortable

Hi,

no worries I'll guide you through. Thanks for your Interest. I'll be contacting you by direct message.

 

[agrep]

Declaring interest.

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Hi, I'm in for a tester for my A3000D.
Please tell me where pin 1 is located on the ZIP socket.

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(Marked as sold/completed by tops4u)

 

[Franske]

Declaring interest.

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Declaring interest in this nice tester, I don't think I need the adapter board as I only need to test C64 and Amiga chips, if so please let me know.
Shipping to the Netherlands

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(Marked as sold/completed by tops4u)

Item received after a delay at the Dutch customs.
Put everything togheter and already fixed 2 of my 4 broken C64's.
Will work on the next one coming weekend.

Awesome tester. I highly recommend it.

 

[dmacoco]

Hi,

no worries I'll guide you through. Thanks for your Interest. I'll be contacting you by direct message.

Well received. To be build now. Thanks a lot

 

[tops4u]

Crazy November Deal

I sell the last two V2.1 Units with 25% Discount during November 2025.

So First Come - First Served - for the RAM Tester KIT. ==> 17.25 CHF + Shipping. => Reserved

Now, Version 3 is available for shipping (currently 5 units remaining).
Version 3 moves the display entirely within the PCB boundaries and features a new reset button with a soft silicone cover, located right next to the DIP switches. A small batch of Version 3 units was produced, all but five of which have already been sold directly. The price for the remaining units is CHF 25 each.

v3 Test-Unit:

Current contents of the RAM Tester Kit

I decided to premount the Display, since it seemed the safest option to ship it - still it needs to be soldered.

 

[eroic]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[eroic]

Declaring interest.

Hi, I will take the two last v2.1

 

[tops4u]

Currently trying to implement Support for:

4816/4516 Type RAM. Both are 16Pin 16K x 1 so similar like 4116 but running on 5V only. For 4516 there will be most probably no dedicated checks for the Refresh line, since this is a bit an alien behaviour. Stupid me, that one was already in 3.x.x Firmware.

4027 which is 4K x 1 for the 4116Adapter since it requires -5V and 12V to operate.

If ATEMGA 328 Flash-Space allows it, I'll be posting a new Firmware revision.

 

[Preginho]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[JoeMS2025]

Declaring interest.

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I'm super interested, this is such a good idea! Whatever is needed, please let me know how to get one of these beauties! (to Germany)

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(Marked as sold/completed by tops4u)

 

[JoeMS2025]

posting again to unlock PM sending

 

[tops4u]

This Project has now been covered on Hackaday

And the current version includes some more protection on the USB Side, so less ESD and EMI should happen. Also some overvoltage protection was included. Price is still the same.

I'm not yet ready to release the 3.1 Firmware, since I was not yet able to test the 4027 RAM as it is still in transit to me ... hopefully somewhere ;-)

 

[jdosher]

Declaring interest.

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Interested in the RAM-Tester / 4116 Adapter Boards.

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(Marked as sold/completed by tops4u)

 

[tops4u]

After a few hours of debugging and finalizing the timings for the 4027 RAM, I'm happy to announce Firmware 3.1.1 is about to be released. All Testers shipping this week will already have the latest version flashed.

And the Project has now also been featured in the Elector-Magazine

Impression from todays Firmware tuning.

 

[NoeBay]

Declaring interest.

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One partially assembled, with 4116 Adapter Board, please.

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(Marked as sold/completed by tops4u)

 

[tops4u]

Firmware 3.1.1

This Update is now available on GitHub.
NOTE: This Update is only useful if you are running really old Firmware (< 3.x) or if you have a 4116 Adapter and want to test 4027 RAM.
For all other RAM Types there is no change since 3.x

 

[slugman]

Declaring interest.

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(Interest withdrawn here)

 

[slugman]

Interest withdrawn. (was previously declared here)

 

[SunDown79]

Received mine a long time ago already but only just got around to test it and works just fine