[TechAssist] Re: RCA TV CTC169 regulator circuit capacitors

  • From: "Old Damon" <damon101@xxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 15 Feb 2004 06:58:36 -0500

That's interesting, I just drive to our local parts supply house, go over to
the "Bargain Basement" and pick up 15 uf by the handful. Are you sure that's
an oddball size??

Damon Brunger
Telrad Electronic Services
Ft Wayne, IN 46815

----- Original Message -----
From: "Tel-Tek Electronics" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, February 14, 2004 6:21 PM
Subject: [TechAssist] Re: RCA TV CTC169 regulator circuit capacitors


> Jeff;
> 15ufd are not a common caps in out Industry, as you know. I have always
> used 10ufd, without any rework. I don't know what the critical circuit
> design is in the CTC169 for this regulator IC, but paying $5 for a cap
> and paying .35 for a 10ufd, especially now that the slight difference in
> price is a Go or no-go.
>
> I am sure that some Fresh Out of College Circuit designer sat down and
> figured that this circuit will run at Peak efficiency if the value of
> this resistor is this, and the value of this cap is this.
>
> My thought is this....if the TV comes on after using a 10ufd
> over 15ufd..go for it.
>
> Many components have changed in value over the years, in that regulator
> circuit, and probably RCA has all the 15ufd in separate bags, with their
> own special little part number stamped on it. Probably the reason none
> are left out there, or overpriced.
>
> Someone that is a Thomson ASC, can query the head RCA technician and get
> a firm answer on this.
>
> I feel relatively safe stating that since the CTC169 regulator problem
> has been documented, 10ufd over 15ufd, don't amount to a "Hill of
> Beans".;-)
>
> CTC169 life expectancy only has another 4 years, if that.
>
> -Ed-
>
> Ed Gaidies
> Tel-Tek Electronics
> Ontario-Canada
>
> Servicing the Consumer Electronic Industry since 1963
>
> teltek3@xxxxxxxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Shoreline
> Electronics
> Sent: Saturday, February 14, 2004 3:03 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA TV CTC169 regulator circuit capacitors
>
> B & D has the 15uf I believe.......
>
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
> ----- Original Message -----
> From: "Barry Thompson" <barrystv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, February 14, 2004 2:02 PM
> Subject: [TechAssist] Re: RCA TV CTC169 regulator circuit capacitors
>
>
> > I do it all the time Gary. The only place you can get the 15 is the
> rca
> one,
> > which is worth about $5.00 Barry
> > barrystv@xxxxxxx
> > Barrys TV
> > 613 224 3406
> > Ottawa.Canada.
> > ----- Original Message -----
> > From: "Gary McCartney" <gary@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, February 14, 2004 1:59 PM
> > Subject: [TechAssist] RCA TV CTC169 regulator circuit capacitors
> >
> >
> > > Has anyone ever used a 10uF 50V and 4.7 uF 50V in parallel to
> replace
> > > the 15uF cap (C4102 or C4104?) in the CTC169 regulator circuit? I
> can't
> > > see off hand there being any problem doing so but thought I'd make
> sure
> > > from anyone who has installed them that way before. I am out of
> stock on
> > > the 15uF cap and don't want to place an order just for those. Or is
> it
> > > ok to use a 22uF instead?
> > >
> > > Thanks for any help.
> > > --
> > >
> > >
> > >
> > >
> > > Gary McCartney
> > >
> > > McCartney Electronics
> > > Guelph Ontario Canada
> > > Est. 1984
> > > email: gary (at) number63.ca
> > >
> > >
> >
> >
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