Sweet Amplification » Mercury Magnetics transformers http://sweetamplification.com Handwired Guitar Amplifiers Wed, 20 Aug 2025 23:01:28 +0000 en hourly 1 http://wordpress.org/?v=3.1.3 PreBS 15 Black with 12″ Speaker http://sweetamplification.com/?p=1231 http://sweetamplification.com/?p=1231#comments Sun, 09 Jun 2019 21:51:23 +0000 patsweet http://sweetamplification.com/?p=1231 Continue reading →]]> Another PreBS 15 is completed! This one is a traditional looking build with 12″ Eminence GA-SC64 speaker,  Mercury Magnetics transformers, and user adjustable bias control and test points on the rear panel. This $50 upgrade will pay for itself the first time you replace your own power tubes and won’t have to pay a tech to re-bias your amp!

SOLD!

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