Telecastertweet
Joined: Jan 04, 2015
Posts: 13
Massachusetts
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Posted on Jan 04 2015 09:01 PM
i love my champ amp. I rebuilt the deteriorating baffle board and rebuilt it for a 10" weber. These speakers sound awesome. It should be arriving this week and I can't wait to install it. I bought a cheapo donner surge rotator reverb on Amazon and it sounds pretty good through my twin... But nothing beats the reverb in the twin... Except a unit. So anyways does anyone have any suggestions on how to mod the circuit so it is a 5f1 circuit with a switchable option so I can enable the tone stack and disable it for the 5f1 mod as well as clip out that resistor at the end of the tonestack to get a mid boost?? Could I use a push pull switch on the volume knob for the 5f1 and a push pull on the bass or treble to get the mid boost effect?
— Fender reverb- the wetter the better
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Telecastertweet
Joined: Jan 04, 2015
Posts: 13
Massachusetts
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Posted on Jan 04 2015 09:09 PM
Installing and armourall ing the cab
— Fender reverb- the wetter the better
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Stormtiger
Joined: Dec 12, 2006
Posts: 2688
Ventura, CA
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Posted on Jan 05 2015 01:07 PM
I have that amp, it's perfect as is, please don't mod it!
I also have a similar size Supro 1616T with a hole in the 6 x 9 speaker but it sounds great anyway. I may replace the speaker someday but these amps are my favorites for playing at home. Together they are heavenly.
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CrazyAces
Joined: Jul 31, 2012
Posts: 4054
Buffalo, N.Y.
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Posted on Jan 05 2015 01:35 PM
I'm with Stormtiger on this one. No mods needed.
On tweed Champs I usually run a 12AY7 instead of a 12AX7 but when I've had/played blackface I just leave them and love them.
Cheers,
Jeff
— http://www.facebook.com/CrazyAcesMusic
http://www.youtube.com/user/crazyacesrock
http://www.reverbnation.com/crazyacesmusic
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cambeezy
Joined: Jun 26, 2007
Posts: 399
Cleveland, Ohio
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Posted on Jan 05 2015 01:56 PM
I don't wanna pile-on here but don't mod the circuit. That'll only hurt the resale value. If you can solder, there's loads of sites offering Champ kits and you could mod one of those.
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Badger
Joined: Nov 16, 2013
Posts: 4537
Wisconsin
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Posted on Jan 05 2015 05:02 PM
I'm for not modding it at all and, as mentioned, get a Champ kit to do that with.
If you must... that 15k resistor in the Champ already makes it more middy anyway, most values on Fender normal channels being 10k or 6.8k. One thing you could do is replace the resistor with a higher value pot and run it out to the back, unobtrusively, and stick it up with some double-sided tape or something. Dial or scoop to your heart's content.
Here's the theoretical 'bump' from the Champ circuit to a wide-open 25k pot.
Kinda funny, the beauty of what was a $60 practice amp, so inconsequential that even CBS didn't muck with it. 
(My '65 is stock and stayin' that way, it SINGS!)
— Wes
SoCal ex-pat with a snow shovel
DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices.
Last edited: Jan 05, 2015 17:03:38
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