Members ksl Posted August 6, 2020 Members Share Posted August 6, 2020 Under what circumstances is the 5R4 a suitable sub for a 5U4, 5V4, how it change the amps gain, and/or voltage the voltage going to the power section. I have one of those big based military 5R4's & while some minor changes and/or rebiasing may be in order, what am I looking at, & is there audible change, sag, tightness,,, whatever? Thanks all & stay safe!! Kenny Link to comment Share on other sites More sharing options...
Members Mikeo Posted August 6, 2020 Members Share Posted August 6, 2020 is there audible change, sag, tightness,,, whatever? yes. I personally never have change out a rectifier in a guitar amp. Whatever Leo Fender, Jim Marshall, or Dr Z put in was fine with me. Most of the time I just play the damn thing, and I'm good with it. Changed Pre amp tubes and some power tubes. Then again I'm not that crazy. Link to comment Share on other sites More sharing options...
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