Tag Archives: Vibroverb

PreBS 20+ Wine

A custom ordered PreBS 20+ with lots of xtras! Wine Tolex with wheat grillcloth, 12+10 speaker comfig, Mercury Magnetics iron, Bias select switch(cathode/fixed), Bassman voiced normal channel, vibroverb style bias modulated vibrato, midcontrols for both channels, and a Master volume … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , | Comments Off

PreBS 20+ Green Levant

The latest PreBS 20+ has a couple of new features to add improved performance and even more versatility. Along with the 2×10 speakers, over-sized transformers from Mercury Magnetics, and bias test points on the rear panel, this one also has … Continue reading

Posted in Handbuilt Amps, Uncategorized | Tagged , , , , , , , , , , , , , , , , , , , , , , , | Comments Off