[TechAssist] Re: CTC169, C4108, 39uf or 47uf?

From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Tue, 09 Dec 2003 19:20:00 +0000
The only real difrence I've seen since the 47uf slows the switching time the 
supplies are usually quieter if you can hear the higher frequencys, most 
kits include the 47uf not a 39uf

Peter Oliver
Tucson Radio TV


From: "Garbage" <damon101@xxxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: CTC169, C4108, 39uf or 47uf?
Date: Tue, 9 Dec 2003 08:30:32 -0500

Jim ,

I've used WHATEVER is on hand.....Capacitive reactance on 47 or 39 is 0.09
and 0.07 ohms, it's not going to change the switching/amplifying on the
output, although I've always leaned towards the 47uf/100v....that's only
because I want that transistor to operate as a switch. 47uf always been
easier to get from suppliers.

Damon Brunger
Telrad Electronic Services
Ft Wayne, IN 46815

----- Original Message -----
From: "Gary McCartney" <gary@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, December 09, 2003 12:31 AM
Subject: [TechAssist] Re: CTC169, C4108, 39uf or 47uf?


 > Jeff, that is true for filtering but not necessarily so for timing
 > situations.
 >
 >
 >
 > Gary McCartney
 >
 > McCartney Electronics
 > Guelph Ontario Canada
 > Est. 1984
 > email: gary (at) number63.ca
 >
 >
 >
 >
 >
 >
 >
 >
 > support@xxxxxxxxxxxxxxxxxx wrote:
 > >
 > > Jim,
 > > If in doubt, I use the higher value cap. You are generally safer that
way. Never go lower unless you are
 > > sure.
 > >
 > > Jeff Dougherty
 > > Intrepid Video TV/VCR
 > > 263 S Front St
 > > Steelton PA 17113
 > > fax...717-564-4952
 > > www.intrepid-video.com www.tech-repair.net
 > >
 > > ----- Original Message -----
 > > From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
 > > To: "TechAssist" <techassist@xxxxxxxxxxxxx>
 > > Sent: Monday, December 08, 2003 9:53 AM
 > > Subject: [TechAssist] CTC169, C4108, 39uf or 47uf?
 > >
 > > Does anyone know the real reason that some CTC169 chassis use a
39uf@100v
 > > for C4108 and others use a 47uf@50V? I've heard that the 39uf is an
upgrade
 > > but if that were true I think PartsFinder would sub the 47uf to the
39uf.
 > > Answer only if you really know, don't waste time with speculation.
 > > Thanks,
 > > **************************************************
 > > Jim Myers
 > > Since 1972
 > > Telrad Electronic Services Co.
 > > Fort Wayne, IN 46815
 > > *************************************************
 > >
 > >
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[TechAssist] Re: CTC169, C4108, 39uf or 47uf?

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