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Topic: Fender amp question |
George King
From:
Woodlawn,Illinois
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Posted 21 Nov 2007 3:02 pm |
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| Did I read somewhere once where you can pull 2 of the output tubes out on a fender twin to cut the amp back to half the power?Is this safe to the amp and if so does it matter which two tubes you pull out?Thanks Geo |
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Jon Light
From:
Saugerties, NY
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Posted 21 Nov 2007 3:10 pm
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--you pull the outer two or the inner two...IOW, pull 1&4 or 2&3
--technically you should disconnect one of the speakers to make the impedance load correct. But the amp should be able to take the mismatch.
--don't expect much change. You may not even perceive a volume difference. A bit more distortion at volumes that were clean before (earlier breakup) but not much. However if you do disconnect a speaker that will contribute to a reduction in sound. |
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George King
From:
Woodlawn,Illinois
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Posted 21 Nov 2007 3:50 pm
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| OK , I'll try that.It might be just enough .I just wanted it to break up a little easier.Thanks |
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Jim Sliff
From:
Lawndale California, USA
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Posted 22 Nov 2007 8:37 pm
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George - that's exactly what it will do....but only a little. you still have the output transformer of a 100-watt amp, which willnot start to saturate the same way as a 40-50 watt model. In other words, pulling two tubes on a Twin reverb DOES NOT turn it into a Pro Reverb...
Also, be SURE to rebias the amp after pulling the tubes. The bias normally changes quite a bit and needs to be dialed infor optimum tone in a safe range (with most 6L6's 25-38ma is safe, and whatever sounds best in there is whaere you hould set it. It's little more complicated than that, but it's a startng point. IF you don't know how to bias an amp, don't pull the tubes - go to a tech and have it done.
_________________
No chops, but great tone
1930's/40's Rickenbacher/Rickenbacker 6&8 string lap steels
1921 Weissenborn Style 2; Hilo&Schireson hollownecks
Appalachian, Regal & Dobro squarenecks
1959 Fender 400 9+2 B6;1960's Fender 800 3+3+2; 1948 Fender Dual-8 Professional |
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Ron Whitworth
From:
Yuma,Ariz.USA Yeah they say it's a DRY heat !!
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Posted 23 Nov 2007 5:39 am
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The ONLY way i have ever been able to get a Twin to break up at a low volume is to use a pedal ( stompbox ) in front of it.There are many out there
for sale new or used that will do the job then you can kick it off to get back to the super clean sound..Ron
_________________
"Tone is in the hands. Unless your wife will let you buy a new amp. Then it's definitely in that amp."
We need to turn the TWANG up a little
It's not what you play through, it's what you play through it.
They say that tone is all in the fingers...I say it is all in your head 
Some of the best pieces of life are the little pieces all added up..Ron
the value of friendship. Old friends shine like diamonds, you can always call them and - most important - you can't buy them. |
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