Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams) Matt
The Fluke can test these but it has a couple of issues, namely speed, as it is not able to test these at fully rated speeds. It also would be nice if someone would develop a cyclic testing of these. Kev ----- Original Message ----- From: "Matt Rossiter" <matt@veriosc.com> To: <techtoolslist@flippers.com> Sent: Monday, July 07, 2003 12:30 AM Subject: Memory tester
Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams)
Matt
In about 1985 I remember seeing a PC based IC tester that someone was making. IIRC it tested CMOS, TTL and memory ICs and had a disk based library of IC functions. The nice thing about it was that you could add new functions (IC definitions) to the library. It would also try to identify unknown ICs by comparing them to the functions in the library. I can't remember who made the thing but it was a small company and I THINK they were based here in Orlando. I've been wondering for years what ever became of them and their testers. Does anyone remember who they were or what happened to them? I THINK the tester was just a socket hung on the end of a ribbon cable and that it used a 1/2 length adapter board inside the PC. The whole thing looked about like one of the PC=based EPROM burners. Joe At 10:58 AM 7/7/03 -0400, you wrote:
The Fluke can test these but it has a couple of issues, namely speed, as it is not able to test these at fully rated speeds.
It also would be nice if someone would develop a cyclic testing of these.
Kev
----- Original Message ----- From: "Matt Rossiter" <matt@veriosc.com> To: <techtoolslist@flippers.com> Sent: Monday, July 07, 2003 12:30 AM Subject: Memory tester
Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams)
Matt
Joe, You might be referring to the Ming Microsystems HT-28 IC tester. They are now Rayming Corp, and apparently no longer make the tester.
From one of their ads:
"The Data Genie HT-28 is a convenient way of testing Logic ICís and DRAMís Tests most TTL 74, CMOS 40145 and DRAMís 414000,44164 -441 000 ICíS. The HT-28 can also identify Logic Kís when a non-standard part number is used or if the product ID has been removed. The HT-28 is compact in size, 6-W 6îx4-5/16îx 2-t/8î, and can be operated from an AC adaptor or up to 600 hours on 4-ìAAî alkaline batteries." Joe wrote:
In about 1985 I remember seeing a PC based IC tester that someone was making. IIRC it tested CMOS, TTL and memory ICs and had a disk based library of IC functions. The nice thing about it was that you could add new functions (IC definitions) to the library. It would also try to identify unknown ICs by comparing them to the functions in the library. I can't remember who made the thing but it was a small company and I THINK they were based here in Orlando. I've been wondering for years what ever became of them and their testers. Does anyone remember who they were or what happened to them? I THINK the tester was just a socket hung on the end of a ribbon cable and that it used a 1/2 length adapter board inside the PC. The whole thing looked about like one of the PC=based EPROM burners.
Joe
At 10:58 AM 7/7/03 -0400, you wrote:
The Fluke can test these but it has a couple of issues, namely speed, as it is not able to test these at fully rated speeds.
It also would be nice if someone would develop a cyclic testing of these.
Kev
----- Original Message ----- From: "Matt Rossiter" <matt@veriosc.com> To: <techtoolslist@flippers.com> Sent: Monday, July 07, 2003 12:30 AM Subject: Memory tester
Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams)
Matt
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM? Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site. tm
Any idea if the test included RAM SPEED? That seems to be one criteria not covered well in these type of testers. My Xeltek SuperPro will check a number of RAM devices, but the test is not very fast so slow RAM could show as good...but a slow 5101 won't run in a System 6 Williams MPU while it will in an old Bally MPU... John :-#)# At 05:10 PM 07/07/2003 -0500, Tom McClintock wrote:
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM?
Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site.
tm
These files are now on TTL (FTP)- perhaps Tom could tell us if they are stored with TELEDISK? Thanks Tom! John :-#)# At 05:10 PM 07/07/2003 -0500, Tom McClintock wrote:
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM?
Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site.
tm
How to subscribe or unsubscribe from TTL To do either you send email to "MajorDomo@flippers.com" and in the body you state either "Subscribe techtoolslist" or "Unsubscribe techtoolslist", note that the Subject is "" (Blank)... FTP site is: ftp://ftp.flippers.com/TTL/
Dunno if TELEDISK was used on the original floppy. The disk image will read just fine in any Apple ][ emulator though. I hope it can be of some use. tm John Robertson wrote:
These files are now on TTL (FTP)- perhaps Tom could tell us if they are stored with TELEDISK?
Thanks Tom!
John :-#)#
At 05:10 PM 07/07/2003 -0500, Tom McClintock wrote:
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM?
Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site.
tm
How to subscribe or unsubscribe from TTL
To do either you send email to "MajorDomo@flippers.com" and in the body you state either "Subscribe techtoolslist" or "Unsubscribe techtoolslist", note that the Subject is "" (Blank)...
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So, how hard would it be to build an adapter using a ZIF socket which could plug into your computer and test IC's. Would the software need to be modified? Matt _____________________________________________________________________ On Mon, 21 Jul 2003, Tom McClintock wrote:
Dunno if TELEDISK was used on the original floppy. The disk image will read just fine in any Apple ][ emulator though. I hope it can be of some use.
tm
John Robertson wrote:
These files are now on TTL (FTP)- perhaps Tom could tell us if they are stored with TELEDISK?
Thanks Tom!
John :-#)#
At 05:10 PM 07/07/2003 -0500, Tom McClintock wrote:
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM?
Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site.
tm
How to subscribe or unsubscribe from TTL
To do either you send email to "MajorDomo@flippers.com" and in the body you state either "Subscribe techtoolslist" or "Unsubscribe techtoolslist", note that the Subject is "" (Blank)...
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I only got a quick look at the original Apple ][ fairy tester board. Missed being able to purchase it by about 30 seconds... Anyway, it was a plug-in board which had a ZIF socket on it and half a dozen other small components. Presumably all the logic is in the software and the hardware was only the interface and power supply for the part under test. Matt Rossiter wrote:
So, how hard would it be to build an adapter using a ZIF socket which could plug into your computer and test IC's. Would the software need to be modified?
Matt
_____________________________________________________________________
On Mon, 21 Jul 2003, Tom McClintock wrote:
Dunno if TELEDISK was used on the original floppy. The disk image will read just fine in any Apple ][ emulator though. I hope it can be of some use.
tm
John Robertson wrote:
These files are now on TTL (FTP)- perhaps Tom could tell us if they are stored with TELEDISK?
Thanks Tom!
John :-#)#
At 05:10 PM 07/07/2003 -0500, Tom McClintock wrote:
On a similar note to the Ming IC tester, I have some software for the Fairy IC tester. The 'Fairy' was an add-on board for the Apple II which had a ZIF socket on it and could presumably test all sorts of early 80's TTL and RAM?
Since the files are 6502-based, perhaps someone can extract the appropriate data? Dunno. I'll upload them to John's ftp site.
tm
How to subscribe or unsubscribe from TTL
To do either you send email to "MajorDomo@flippers.com" and in the body you state either "Subscribe techtoolslist" or "Unsubscribe techtoolslist", note that the Subject is "" (Blank)...
FTP site is: ftp://ftp.flippers.com/TTL/
One needs to use a QuickTest pod for checking RAM at system speed... John :-#)# At 10:58 AM 07/07/2003 -0400, Kev wrote:
The Fluke can test these but it has a couple of issues, namely speed, as it is not able to test these at fully rated speeds.
It also would be nice if someone would develop a cyclic testing of these.
Kev
----- Original Message ----- From: "Matt Rossiter" <matt@veriosc.com> To: <techtoolslist@flippers.com> Sent: Monday, July 07, 2003 12:30 AM Subject: Memory tester
Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams)
Matt
Oh yeah? Got one for a 6502? What about the 8051 series? ;-) Kev
One needs to use a QuickTest pod for checking RAM at system speed...
John :-#)#
At 10:58 AM 07/07/2003 -0400, Kev wrote:
The Fluke can test these but it has a couple of issues, namely speed, as it is not able to test these at fully rated speeds.
It also would be nice if someone would develop a cyclic testing of these.
Kev
----- Original Message ----- From: "Matt Rossiter" <matt@veriosc.com> To: <techtoolslist@flippers.com> Sent: Monday, July 07, 2003 12:30 AM Subject: Memory tester
Can someone recommend a descent RAM tester for testing 4116's, 2101's, 2114's, etc. (Basically your typical video game/pinball rams)
Matt
participants (5)
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Joe -
John Robertson -
Kev -
Matt Rossiter -
Tom McClintock