On Thu, Jun 03, 2004 at 08:39:20AM -0800, Bob Smith enlightened us thusly > You must use a different Google than I do.
Hmmm. I use www.google.ie. I got about 5 hits, none when I added the word 'data' except some Japanese site in hieroglyphics (or whatever the Japanese letters are). > > About the 6th or 7th hit was > > http://moon.feld.cvut.cz/hw/st/4463.pdf > > A cross reference index that lists the TA7506P as a Toshiba part that > crosses to a LM301AN. > > And, as one would expect, Google finds the LM301AN at > > http://www.national.com/pf/LM/LM301A.html > > Where it is described as "an industry standard operational amplifier" > with "improved" specs. > > And, also shows it on "Last Time Buy" as of 1995!! (Which one would > expect ;-) ), but lists a data sheet that should get you on your way > to finding a current sub. > > Does that help?? > > Bob Smith Yeah, that's fine. Thanks Bob. I shoved in a socket, and popped a 741 in it, and it works. I then had to reverse engineer as far as an offboard timing pulse (ugh!) fix a few broken tracks, put in a 40106 where a 4584 should be, solder in what I had soldered out, and it does the business. Mind you, That's hardly ISO 9000 standard work :-/. > > > > Whassat? > > > > It's a little 8 pin dil in a sensor board from Japan manufactured by > > Toshiba, AFAIK. It's surrounded by HA17903 & HA17904 (Hitatchi)chips > > which are dual opamp & dual comparator, and I would swear it is some > > sort of a single opamp: 7 & 4 are rails; 1 & 8 have a tiny capacitor > > (compensation?); 2 & 3 seem like input pins. > > > > I tried: > > > > Chipdir - No dice. Google - results are depressing. > > www.datasheetarchive.com - finds TA75060, etc. This is TA7506P Last > > ICMASTER cd (2000) also finds only TA75060-4. Ancient D.A.T.A. > > reference volumes (vintage 1986) - not listed. ABI's chip tester > > didn't recognize it (What's new?). At least it didn't come out with > > it's usual "Warning: all parts of this type fail" message. That one > > really gets me going. > > > > > > Anyone got anything else up their sleeve? A pinout or a substitute > > is fine. I can't find this one. -- With best Regards, Declan Moriarty. -- Author: Declan Moriarty INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
