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Hoffman Amps Forum image Author Topic: Champ Amp build! Need oddball cap  (Read 4965 times)

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Offline blueznet

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Champ Amp build! Need oddball cap
« 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?
*/ "Building a tube amp is very simple, but it takes a genius to understand the simplicity." /*

Offline sluckey

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Re: Champ Amp build! Need oddball cap
« Reply #1 on: January 10, 2012, 02:19:55 pm »
Mouser has many 2uF@50VDC caps. Everybody has 2.2uF caps.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline mpayne

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Re: Champ Amp build! Need oddball cap
« Reply #2 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.


Offline blueznet

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Re: Champ Amp build! Need oddball cap
« Reply #3 on: January 10, 2012, 02:29:37 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.
*/ "Building a tube amp is very simple, but it takes a genius to understand the simplicity." /*

Offline sluckey

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Re: Champ Amp build! Need oddball cap
« Reply #4 on: January 10, 2012, 02:45:31 pm »
There's only about 2 volts on it.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline bluesbear

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Re: Champ Amp build! Need oddball cap
« Reply #5 on: January 11, 2012, 02:10:22 pm »
50 volts is fine.

Offline LooseChange

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Re: Champ Amp build! Need oddball cap
« Reply #6 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.
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Offline stingray_65

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Re: Champ Amp build! Need oddball cap
« Reply #7 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

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

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
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Offline Willabe

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Re: Champ Amp build! Need oddball cap
« Reply #8 on: January 13, 2012, 01:51:02 am »
FWIW, Nic. is a very good brand of cap.


     Brad     :icon_biggrin:

Offline mresistor

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Re: Champ Amp build! Need oddball cap
« Reply #9 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

Offline thermion

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Re: Champ Amp build! Need oddball cap
« Reply #10 on: January 17, 2012, 12:44:25 pm »
+1 on nichicons. good quality in my experience and compact.

 


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