We get asked a lot of preamp tube questions such as, “Which preamp tubes should I use?” or “Do you care for this brand of tube?”. This article covers some of the questions and provides some info on reasons for changing preamp tubes. The most common preamp tube for tube guitar amplifiers is the 12AX7. Continue reading
Category: Repair
Choosing the right tube
What brand of tubes are the worst? This shows defective tubes that where pulled out of tube amps over the course of one year. They are mostly out of guitar amps. 6L6 Power Tube Types Brand Qty Percent Ruby 6L6GCM-STR 13 48% Groove Tubes GT-6L6B 7 26% Mesa-Boogie 6L6GC 3 11% Electro-Harmonix 6L6 EH 2 Continue reading
Why do I keep blowing my highs?
I get this question quite often. Although we don’t mind the business we would rather have our customers understand how to not blow up their equipment. The Problem: Blown Highs Why does this happen? A simple answer is excessive heat…we see a lot of burned voice coils. Excessive heat on a voice coil is the Continue reading