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02 October 2018
The Perfect Guitar Amp Tube
4 of 4 found this helpful These are great preamp tubes for Marshall amps. I use them in my '70, '71' and '73 Hiwatt and Marshall guitar amps and even in my brand new Freidman plus my buddy's new Mesa. The best smooth "clean" tone and they break up really nicely for the "overdriven" tones..