Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: blueznet on January 10, 2012, 02:11:43 pm

Title: Champ Amp build! Need oddball cap
Post by: blueznet on January 10, 2012, 02:11:43 pm

Fixing to build a Champ amp, mid 60's. The schematic calls for a 2uf/25vdc electrolytic cap.
I been looking for this value and come up with nothing.

Any of you guys know anyone that may sell this value?

Title: Re: Champ Amp build! Need oddball cap
Post by: sluckey on January 10, 2012, 02:19:55 pm

Mouser has many 2uF@50VDC caps. Everybody has 2.2uF caps.

Title: Re: Champ Amp build! Need oddball cap
Post by: mpayne on January 10, 2012, 02:21:41 pm

Mouser seems to have them.  "http://www.mouser.com/ProductDetail/Vishay-Sprague/TVA1301-E3/?qs=sGAEpiMZZMtZ1n0r9vR22beeiJoI0EpCw%2ftqZOItGaw%3d".  It's a higher voltage rating but that is okay.

Title: Re: Champ Amp build! Need oddball cap
Post by: blueznet on January 10, 2012, 02:29:37 pm

Quote from: mpayne on January 10, 2012, 02:21:41 pm

Mouser seems to have them.  "http://www.mouser.com/ProductDetail/Vishay-Sprague/TVA1301-E3/?qs=sGAEpiMZZMtZ1n0r9vR22beeiJoI0EpCw%2ftqZOItGaw%3d".  It's a higher voltage rating but that is okay.

I seen those with 50vdc rating, but did not know if 50vdc is okay to use.

Title: Re: Champ Amp build! Need oddball cap
Post by: sluckey on January 10, 2012, 02:45:31 pm

There's only about 2 volts on it.

Title: Re: Champ Amp build! Need oddball cap
Post by: bluesbear on January 11, 2012, 02:10:22 pm

50 volts is fine.

Title: Re: Champ Amp build! Need oddball cap
Post by: LooseChange on January 12, 2012, 02:06:02 pm

I've been using 20uf in there... Use what ever you got, you won't hear the difference through an 8" speaker.

Title: Re: Champ Amp build! Need oddball cap
Post by: stingray_65 on January 12, 2012, 10:29:05 pm

believe it or not

Your local radio shack has a 4.7uf 50v axial lead for about $1.50

http://www.radioshack.com/product/index.jsp?productId=2103572&filterName=Brand&filterValue=RadioShack (http://www.radioshack.com/product/index.jsp?productId=2103572&filterName=Brand&filterValue=RadioShack)

and a 2.2uf 50v axial non-polarized for about the same

http://www.radioshack.com/product/index.jsp?productId=2102479&filterName=Brand&filterValue=RadioShack (http://www.radioshack.com/product/index.jsp?productId=2102479&filterName=Brand&filterValue=RadioShack)

I use the 4.7 now and then, they have always been Nichicon brand, have one in my hands now (so I could spell Nichison)

Ray

Title: Re: Champ Amp build! Need oddball cap
Post by: Willabe on January 13, 2012, 01:51:02 am

FWIW, Nic. is a very good brand of cap.


     Brad     :icon_biggrin:

Title: Re: Champ Amp build! Need oddball cap
Post by: mresistor on January 15, 2012, 06:30:14 pm

Dave has 2.2uf 50v elytics on ebay, granted he sells in a unit of 50 pieces but he might sell a smaller quantity just ask.

2.2uf caps (http://www.ebay.com/itm/2-2uF-50V-Axial-Electrolytic-Capacitors-QTY-50-/300549234128?pt=LH_DefaultDomain_2&hash=item45fa215dd0)

Title: Re: Champ Amp build! Need oddball cap
Post by: thermion on January 17, 2012, 12:44:25 pm

+1 on nichicons. good quality in my experience and compact.