dphirschler Posted August 12, 2014 Share Posted August 12, 2014 (edited) I have both a Myarc disk controller card and a Myarc 128k memory expansion card. As I was trying to research about them using Google, I was unable to find any information about the 128k memory expansion card... and only limited info about the disk controller. Am I missing something? I know Myarc made other cards too. Isn't this stuff documented online somewhere? Darryl PS. I have a couple of unused Myarc RS232 labels (but not a Myarc RS232 card). Don't know where we got those. If anybody needs them, let me know. Edited August 12, 2014 by dphirschler Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted August 12, 2014 Share Posted August 12, 2014 http://ftp.whtech.com/datasheets%20and%20manuals/Hardware/Myarc/Myarc%20512k%20memory%20expansion%20card.txt 128k should be basically the same just less ram http://ftp.whtech.com/datasheets%20and%20manuals/Hardware/Myarc/myarc%20floppy%20disk%20card%20manual.pdf Quote Link to comment Share on other sites More sharing options...
dphirschler Posted August 12, 2014 Author Share Posted August 12, 2014 I am pretty sure the disk controller had a battery backed up real-time clock, or was that the memory expansion card. I didn't see any reference to that in the document linked above. Maybe it was the memory expansion card. I honestly expected to see some wikipedia pages listing all of Myarc's cards, the history behind them, some comparisons to Corcomp and TI's cards. I didn't even find info on the mini-expansion box. Part of this is I was curious about the history of the company. For some reason (perhaps it's even true), I was thinking Myarc formed out of Corcomp. Darryl Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted August 12, 2014 Share Posted August 12, 2014 I am pretty sure the disk controller had a battery backed up real-time clock, or was that the memory expansion card. I didn't see any reference to that in the document linked above. Maybe it was the memory expansion card. I honestly expected to see some wikipedia pages listing all of Myarc's cards, the history behind them, some comparisons to Corcomp and TI's cards. I didn't even find info on the mini-expansion box. Part of this is I was curious about the history of the company. For some reason (perhaps it's even true), I was thinking Myarc formed out of Corcomp. Darryl Richard Bell owns all of myarc's IP.. he is the guy to talk too.. he's on the yahoo group and probably on here.. also is running for congress in NY so kinda busy right now.. There is info in that ftp directory on the mini expansion box too.. manuals anyway another good place for info is micropendium http://www.mainbyte.com/ti99/micro/micro.html Greg Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted August 12, 2014 Share Posted August 12, 2014 Richard Bell ... is running for congress in NY so kinda busy right now.. Any idea how to contact his campaign? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted August 12, 2014 Share Posted August 12, 2014 Any idea how to contact his campaign? probably through the NY libertarian party or his email swim4home AT verizon.net Quote Link to comment Share on other sites More sharing options...
dphirschler Posted August 17, 2014 Author Share Posted August 17, 2014 Also just found an unused label for the memory expansion, and another RS232 label. We must've known somebody on the inside... Darryl Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted August 17, 2014 Share Posted August 17, 2014 I am pretty sure the disk controller had a battery backed up real-time clock, or was that the memory expansion card. I didn't see any reference to that in the document linked above. Maybe it was the memory expansion card. I honestly expected to see some wikipedia pages listing all of Myarc's cards, the history behind them, some comparisons to Corcomp and TI's cards. I didn't even find info on the mini-expansion box. Part of this is I was curious about the history of the company. For some reason (perhaps it's even true), I was thinking Myarc formed out of Corcomp. Darryl Only the Myarc HFDC (hard and floppy disk controller) had a clock. It was not battery backed up unless you added your own circuit or battery. You may be thinking of the CorComp triple tech which had a clock, print spooler, and speech rolled into one card. Myarc was not formed out of CorComp. The Mainbyte page and the TI wiki pages are good sources of info for some of the cards. Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted August 23, 2014 Share Posted August 23, 2014 I've got originals of most of the Myarc manuals--so if it turns out you need one that isn't available, I can probably scan it in for you. Quote Link to comment Share on other sites More sharing options...
dphirschler Posted August 24, 2014 Author Share Posted August 24, 2014 Thanks! I might have to take you up on that. I have to troubleshoot my floppy controller card. Darryl Quote Link to comment Share on other sites More sharing options...
dphirschler Posted August 31, 2014 Author Share Posted August 31, 2014 (edited) I've got originals of most of the Myarc manuals--so if it turns out you need one that isn't available, I can probably scan it in for you. I need the manual for the Myarc 32/128k Memory Expansion card. I cannot find mine. I need to test it out. I want to know a) if it works, and 2) how much RAM it has. I opened it up and the RAM chips say the following: Japan 8648 HM50464P-15 U1005ZZ Guessing these are 64K chips, so since there are 16 of them means this is a 128K card... right? Darryl Edited August 31, 2014 by dphirschler Quote Link to comment Share on other sites More sharing options...
jens-eike Posted August 31, 2014 Share Posted August 31, 2014 50464 are 64k*4bit. Two of them are 64kByte, so your card is 512k with 16 chips. I need the manual for the Myarc 32/128k Memory Expansion card. I cannot find mine. I need to test it out. I want to know a) if it works, and 2) how much RAM it has. I opened it up and the RAM chips say the following: Japan 8648 HM50464P-15 U1005ZZ myarc ram chip.jpg Guessing these are 64K chips, so since there are 16 of them means this is a 128K card... right? Darryl Quote Link to comment Share on other sites More sharing options...
dphirschler Posted August 31, 2014 Author Share Posted August 31, 2014 That's great news! Thanks! Darryl Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 any place where can get the MyArc 512k memory card? pw2.netcom.com doesn't seem to still work. Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted July 4, 2020 Share Posted July 4, 2020 You might want to talk to Richard Bell (Swim). He might still have a few of the boards, as he is the current owner of the Myarc IP. Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 12 hours ago, Ksarul said: You might want to talk to Richard Bell (Swim). He might still have a few of the boards, as he is the current owner of the Myarc IP. sorry, I meant, anyplace where you might be able to get a manual? is he a source for that too? Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted July 4, 2020 Share Posted July 4, 2020 I am pretty sure I still have a manual for the card, as I bought a card NOS from the Dhein's hoard a few years ago (along with a copy of Myarc XB-II). I'll try to pull it out and scan it in. 1 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted July 4, 2020 Share Posted July 4, 2020 2 hours ago, hloberg said: sorry, I meant, anyplace where you might be able to get a manual? is he a source for that too? the pdf is probably on whtech. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted July 4, 2020 Share Posted July 4, 2020 2 hours ago, hloberg said: sorry, I meant, anyplace where you might be able to get a manual? is he a source for that too? This one? myarc512.pdf 2 1 Quote Link to comment Share on other sites More sharing options...
+9640News Posted July 4, 2020 Share Posted July 4, 2020 16 hours ago, hloberg said: any place where can get the MyArc 512k memory card? pw2.netcom.com doesn't seem to still work. I picked up a 512K card from the guy that bought the Dheins contents. His contact is: Zach Beschorner isellhomeszach@cs.com 1 Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 1 hour ago, arcadeshopper said: the pdf is probably on whtech. not any more. Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 DOAH! I had a manual buried away. FYI, there doesn't seem to be a valid manual on whtech anymore. you click on the myarc mem text file and all it has is a dead link on the text. here is a good copy. someone who knows how to upload to whtech upload this please. Myarc Memory Expansion Card.pdf 2 Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 1 hour ago, mizapf said: This one? myarc512.pdf 200.84 kB · 2 downloads I think that's the Cyc copy isn't it? he usually put the banner at the top like that. Quote Link to comment Share on other sites More sharing options...
+hloberg Posted July 4, 2020 Share Posted July 4, 2020 3 hours ago, Ksarul said: I am pretty sure I still have a manual for the card, as I bought a card NOS from the Dhein's hoard a few years ago (along with a copy of Myarc XB-II). I'll try to pull it out and scan it in. got it, thanks. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted July 4, 2020 Share Posted July 4, 2020 45 minutes ago, hloberg said: I think that's the Cyc copy isn't it? he usually put the banner at the top like that. Shrug ... I don't remember how it got on my drive. Quote Link to comment Share on other sites More sharing options...
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