[TechAssist] Re: Home made variable DC Power Supply
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 02 Aug 2003 02:15:53 -0400
Warren, Neutron Electronics here in Guelph had an ESR tester a while
back. I think it was model 88 or something like that. It had an LED
bargraph readout. Neutron's phone is 519-836-9220. If you are
interested, I could pick it up and ship it to you with your tuner.
Gary McCartney
McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: gary (at) number63.ca
"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
> > >
> > >
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