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Old 16th November 2009, 09:40 PM   #1
diyAudio Member
Join Date: Jan 2004
Location: az
Default bandmaster ab763 fx loop

i want to add a tube buffered effect loop to a band master. there are a lot of kits, but im just going to do my own. i wanted to know if the power transformer can handle another 12ax7 without any issues? all the kits dont specify whether you need to make a separate supply or upgrade the one in the amp.
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Old 16th November 2009, 11:11 PM   #2
jjman is offline jjman  United States
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Join Date: Jan 2009
PS and the heater of one extra 12ax7 probably adds only a few % to the total wattage the PT would normally need to supply. Why would you need to use a loop on that amp? I wouldn't think the 2nd stage of either preamp distorts. Maybe you have a line-level rack setup?
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Old 17th November 2009, 11:38 AM   #3
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Join Date: Jan 2004
Location: az
its not my amp, but yes a lot of rack fx and emulators, will be used as a studio amp. i wouldnt touch a vintage fender of my own for anything, they should be left as is, but its not my amp, thanks jjman
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