IC 321 sounds like a number used by Elcom who were a company like ECG with a replacement line. If you can find an old ECG catalog you can likely cross it back to an ECG number. Oldest I have is catalog 212Q and it lists IC320 and skips to IC322 Al G Al's TV-Electronics Pembroke Ont. Canada "Warren C." wrote: > > Jerry and All > Thanks for your replies thus far. The only number written on the IC is > .....IC321 that's it. > You'd think that would be a location number but no IC321 is the actual number. > Anyone have a source for ESR testers in Canada? > > J Silverman wrote: > > > Are there any numbers on the top or side of the IC? > > Jerry Silverman > > Greentron Inc > > 4 Newland Ave > > Greenville SC 29609 > > 864 232 3889 > > Fax 271 2080 > > mailto:greentron@xxxxxxx > > ----- Original Message ----- > > From: "Warren C." <warrenca@xxxxxxxxx> > > To: "techassist" <techassist@xxxxxxxxxxxxx> > > Sent: Friday, August 01, 2003 12:52 AM > > Subject: [TechAssist] Home made variable DC Power Supply > > > > > Hi All > > > > > > My old DC PS finally Quit regulating, problem is it was built so many > > > years ago > > > that I no longer have the schem. > > > It controls the Voltage output from 35 V down to about 1.5V > > > The current can be adjusted from 2A down to about 5ma. > > > > > > I've found some bad caps and replaced them but it still does not > > > regulate down below > > > 10 V and it used to. > > > The main problem (I think) is the reg. IC# is IC321 and I can't find it > > > or cross it. > > > It is a 5/16" can type with 8 legs on it. The IC controls a large heat > > > sinked T O 3 trans. > > > > > > Does anyone have info on this IC?? > > > I would welcome your schematics for similar home made PS's > > > > > > Secondly where in Canada can I buy a ESR cap tester. No insult but I > > > had a bad experience > > > years ago with an electronics company in the States. I sent down a mail > > > order for about $350.00 > > > It was cashed but never received any thing for it and no replies > > > afterwards..! > > > > > > TIA > > > > > > Warren Campbell > > > Campbell's TV & Appliances > > > Cannington On > > > Canada > > > > > > > > **************************************************************************** > > * > > > Classifieds! Buy or Sell! > > > http://sell.tech-assist.org > > > The Tech Address Book: > > > http://www.tech-assist.org/secure/tip/contact.htm > > > Add a Repair Tip Here, or Change/Remove your Email Address: > > > http://www.tech-assist.org/secure/tip/main.htm > > > Lost Password: > > > http://www.tech-assist.org and select "Lost your Login Info?". > > > Email Archives: > > > //www.freelists.org/archives/techassist/ > > > > > > > ***************************************************************************** > > Classifieds! Buy or Sell! > > http://sell.tech-assist.org > > The Tech Address Book: > > http://www.tech-assist.org/secure/tip/contact.htm > > Add a Repair Tip Here, or Change/Remove your Email Address: > > http://www.tech-assist.org/secure/tip/main.htm > > Lost Password: > > http://www.tech-assist.org and select "Lost your Login Info?". > > Email Archives: > > //www.freelists.org/archives/techassist/ > > ***************************************************************************** > Classifieds! Buy or Sell! > http://sell.tech-assist.org > The Tech Address Book: > http://www.tech-assist.org/secure/tip/contact.htm > Add a Repair Tip Here, or Change/Remove your Email Address: > http://www.tech-assist.org/secure/tip/main.htm > Lost Password: > http://www.tech-assist.org and select "Lost your Login Info?". > Email Archives: > //www.freelists.org/archives/techassist/ ***************************************************************************** Classifieds! Buy or Sell! http://sell.tech-assist.org The Tech Address Book: http://www.tech-assist.org/secure/tip/contact.htm Add a Repair Tip Here, or Change/Remove your Email Address: http://www.tech-assist.org/secure/tip/main.htm Lost Password: http://www.tech-assist.org and select "Lost your Login Info?". Email Archives: //www.freelists.org/archives/techassist/