Bought a small lot of isa cards and this was among them, interesting thing about it that the crystal cs4239 chip is in a socket. Cant say ive ever seen a sound card with a socketed chip before. Was this a thing on sound cards, and why would you need a socket?
Sorry for the potato image quality, my phone camera is terrible.
That almost for sure is a pre-production / development board.
Socketed chips were common on early sound cards, see eg. Sound Blaster 1.x, with a bunch of socketed chips: OPL2, DAC for OPL2, DSP, 2 x CMS
But I've never seen sockets on those late-ISA single-chip cards.
So yes, I'm also inclined to believe it's development, not retail.
Nie tylko, jak widzicie, w tym trudność, że nie zdołacie wejść na moją górę, lecz i w tym, że ja do was cały zejść nie mogę, gdyż schodząc, gubię po drodze to, co miałem donieść.
That's definitely the official development card for the Crystal sound chipsets. Very cool to see it !
T-04YBSC, a new YMF71x based sound card & Official VOGONS thread about it
Newly made 4MB 60ns 30pin SIMMs ~
mida sa loed ? nagunii aru ei saa 😜
Coooooooooool! That's some very good swag you landed there.
Interesting! That may explain why i could find much info on the card model #. Thanks for the replies! Ill have to pop it in a pc and give it a try
Sockets were used in cards in the early days for expansion and servicing. They got dropped over time due to chip integration and cost cutting. And a QFP socket is not something I've seen in a consumer product. They are expensive, take up space, and fragile. I use a tool when handling QFP in a socket so not to damage the pins, so really a bad thing for an end user, honestly.
Well i have socketed 386SX, finding a "Not Bend" 486SLC is pain in the Ass i once tried to bend all Pins so i could put it in but.. yeah i just put back the 386SX.
https://www.retrokits.de - blog, retro projects, hdd clicker, diy soundcards etc
https://www.retroianer.de - german retro computer board
yep - as other have wrote above this is a Crystal reference board , this one: http://ebook.pldworld.com/_semiconductors/Cir … ubs/4235rd6.pdf
Very interesting specimen, nice score.
Wasn't the GF1 chip socketed on the original gravis ultrasound?
AppleSauce wrote on 2021-10-20, 23:16:Wasn't the GF1 chip socketed on the original gravis ultrasound?
It was.
Even in the late 90s there were cards like Creamware TripleDAT/CutMaster with socketed chips - but this was high-end digital audio workstation stuff...
Nie tylko, jak widzicie, w tym trudność, że nie zdołacie wejść na moją górę, lecz i w tym, że ja do was cały zejść nie mogę, gdyż schodząc, gubię po drodze to, co miałem donieść.
