bandmaster ab763 fx loop

hi_im_sean · 16th November 2009, 10:40 PM

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.

jjman · 17th November 2009, 12:11 AM

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?

hi_im_sean · 17th November 2009, 12:38 PM

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

16th November 2009, 10:40 PM	#1
hi_im_sean diyAudio Member Join Date: Jan 2004 Location: az	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. __________________ sean

17th November 2009, 12:38 PM	#3
hi_im_sean diyAudio Member 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 __________________ sean

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17th November 2009, 12:11 AM	#2
jjman diyAudio Member 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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