BreezyGrass Posted January 27, 2009 Share Posted January 27, 2009 Hey all! I have a 1967 Fender Twin Reverb Amp and have been trying to get new sounds out of it. I've never done bridged the regular channel to the vibrato channel before today and got some interesting sounds when trying different combinations. I usually use the vibrato channel. Anyways, not a whole lot of info on this topic on the net. She's a Silverface no master volume. Any thoughts? Ideas? Tips? Concerns? Thanks all! Matty www.myspace.com/mattylyons1BreezyGrass Quote Link to post Share on other sites
In a little rowboat Posted January 28, 2009 Share Posted January 28, 2009 yea...cool trick they dont teach you in school...you can get a bit more tube break up bridging...i have found i get some strange highend overtones which i dont always like, the vibrato channel has a bright capacitor which alot of folks cut out... Quote Link to post Share on other sites
Ghost of Electricity Posted January 28, 2009 Share Posted January 28, 2009 forgive the ignorance.. is this when you plug into both channels of your amp simultaneously? i've just never heard this term before. Quote Link to post Share on other sites
BreezyGrass Posted January 28, 2009 Author Share Posted January 28, 2009 Its pluging into the normal channel and then pluggin it into the vibrato channel in hope of overdriving the amp. I've heard of people doing it but also heard about risks involved. I'm not sure what those are that's why I started the topic. Also, if people do use this method what if any are some good tips? Quote Link to post Share on other sites
jff Posted January 30, 2009 Share Posted January 30, 2009 Hopefully someone will come along with some more info. I've been thinking of trying this with my Deluxe Reverb, but I don't have the knowhow and I don't know if I want to gamble with whatever the risks are. The guitar player in my old band used to do this, but I never heard him plugged straight into one channel, so I have no idea how the sound was improved by bridging the two channels. Quote Link to post Share on other sites
In a little rowboat Posted February 19, 2009 Share Posted February 19, 2009 just wanted to update on this thread...this is for fender amps with no master volume, like DRRI, Twin, Bassman, etc.. I opened for stony larue last night and wanted a little extra meat on my sound, so i tried this technique for the first time in a long time...there was an audible difference immediately, but once we did soundcheck and the amp was in the mix, wow, what an difference...just to clarify, i used the vib 1 input for my guitar, then ran a shielded cable from vib 2 to reg 1 and used the regular channel volume as a gain...both eqs work and the guitars tone is way fatter...then i can just unplug the patch cord and go straight into the vib channel for my clean tones I might more correctly refer to this as "daisy chain" inputs, or parallel inputs, i think there is a rewiring of the circuit that is actually 'bridging' The second channel w/reverb adds another stage to the circuit which puts the signal through that channel out of phase with the non-reverb channel. This was apparently standard practice on non-reverb fenders like the bassman and deluxe...but seems to work well with reverb equipped amp as well... The effect is that you are now using both preamp gain stages fed into one another, and the volume controls of both channels are now used to blend in the amount of "Bright" or "Normal" volume tone to your liking. It makes the amp seem larger and more powerful, while increasing the amount of gain. The real nice part is how interactive the volumes can be and how you can really tweak a personalized ton out of the setup. Of note, on these amps, the volume controls are already slightly interactive, even whithout jumpering. Turning up or down the "unused" channels volume, you do hear a subtle affect on the tone of the other channel, but it is nowhere near as aggressive as when you actually jumper and feed one channel into another. There no harm in doing this, it just adds to the signal going to the power stage, just like 2 instruments at the same time, which the amp is clearly designed for... Quote Link to post Share on other sites
jff Posted February 20, 2009 Share Posted February 20, 2009 Awesome. Totally awesome. I might have to go home early today and fiddle with my amp. Quote Link to post Share on other sites
Golden Smoghead Posted February 25, 2009 Share Posted February 25, 2009 domo arigato, mr. rowboato Quote Link to post Share on other sites
BreezyGrass Posted March 2, 2009 Author Share Posted March 2, 2009 Thanks row - I thought the thread petered out - I've met with some good tones and some off the wall tones. Not to say that that is a bad thing! =P Quote Link to post Share on other sites
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