@rdmark was recently looking for some verified DRAM for an Apple IIC project and I had recently just gone through my stack of salvaged parts to pull some for their repairs. While doing so I thought it the perfect opportunity to showcase @Stephen amazing little device!
The DRAM Liberator is an arduino mini driven device with a simple purpose of verifying read/write capabilities of 4164 and 4264 DRAM chips (Often found in MANY machines like C64, Mac 128k, IIc ).
IF the DRAM passes without fault the green LED will stay solid after ~1 minute of testing, red if faulty!
Previously I had used this device to test some 30 chips and found 2 bad ones which were promptly shipped to @eric along with 30 leaking cmos batteries (he loves them, send him some).
*Here we see the DRAM moving in a herd*
Being mindful of the orientation the DRAM is inserted, USB is plugged in and we're off! about ~1 minute later we test GO for Green!
If you're interested in building your own Liberator you can find Stephens github page here: https://github.com/Stephen-Arsenault/DRAM-Liberator
The DRAM Liberator is an arduino mini driven device with a simple purpose of verifying read/write capabilities of 4164 and 4264 DRAM chips (Often found in MANY machines like C64, Mac 128k, IIc ).
IF the DRAM passes without fault the green LED will stay solid after ~1 minute of testing, red if faulty!
Previously I had used this device to test some 30 chips and found 2 bad ones which were promptly shipped to @eric along with 30 leaking cmos batteries (he loves them, send him some).
*Here we see the DRAM moving in a herd*
Being mindful of the orientation the DRAM is inserted, USB is plugged in and we're off! about ~1 minute later we test GO for Green!
If you're interested in building your own Liberator you can find Stephens github page here: https://github.com/Stephen-Arsenault/DRAM-Liberator
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