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Did you know when you change your power or preamp tubes you should also clean your tube sockets as they oxidize over time and dust and debris can build up causing corrosion. To make sure the tubes pins are making good contact with the tube sockets you should use a good electronic contact cleaner such as DEOXIT D5 SPRAY CONTACT CLEANER AND REJUVENATOR every time you change your tubes.
The Marshall 4203 Artist 30 combo amp was introduced in 1986 and discontinued in 1991. The Marshall 3203 is the mini stack head version of the 4203. The preamp is solid state, only the power amp uses tubes (1x 12AX7 & 2 x EL34). This combo was fitted with a 12" Celestion G12 Vintage T3896 8Ω speaker. This is a great sounding combo amp, but the clean channel is a bit shrill sounding. The C13 capacitor can be clipped out of the circuit or you can add a mini SPDT toggle switch to turn it on or off like a bright switch found on many fender amps.
ClassicTone is a new line of vintage constructed amplifier transformers by Magnetic Components, Inc. ClassicTone is the culmination of decades of experience producing hundreds of thousands of our fine custom amplifier transformers for the amplifier industry. Magnetic Components has been in business since 1943 in the Chicago area and have vast knowledge of quality transformer manufacturing for the military and amplifier industry.
For many years, Accutronics® (a Hammond® Corporation Company) designed and built spring reverberation units in the United States. Today, most reverb tanks are built in Korea and China. The following is a comparison of current made reverb tanks as well as the Accutronics® (made in USA) tanks which are no longer in production.
I will show you how to replace the old 2 prong power cord to an updated 3 prong with ground on your Vintage Fender Amp. The original 2 prong power cords can be very dangerous, causing you to get shocked, especially in some clubs where the power outlets are not grounded. I've personally stepped up to the mic, started to sing, then started to play, and blue flames shot from my mouth. I was using a 69' Fender bassman head and cab with the old 2 prong power cord. Needless to say this file was written right after I modded it the next day.