Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Backwoods Joe on April 03, 2026, 09:00:15 pm

Title: I should know this. Marshall JMP 50 NFB Question
Post by: Backwoods Joe on April 03, 2026, 09:00:15 pm

OK if i move the negative feedback wire from the 8ohm tap to the 16ohm tap, what effect will this have? More or less NFB? Thx for the help. joe

Title: Re: I should know this. Marshall JMP 50 NFB Question
Post by: sluckey on April 03, 2026, 09:19:54 pm

more by a factor of √2

Title: Re: I should know this. Marshall JMP 50 NFB Question
Post by: neskor on April 04, 2026, 02:08:51 am

it will be a cleaner amp

Title: Re: I should know this. Marshall JMP 50 NFB Question
Post by: Backwoods Joe on April 04, 2026, 07:06:48 am

Thanks, Guys, for the info. :icon_biggrin: