Rectifier Valve ? Many of the vintage amplifiers such as the Vox AC30 , Fender Twin Reverb use a rectifier valve. Other amps use modern silicon diodes. The rectifier valve ( or diode) is a key part of your amplifier’s power supply. Its job is to “convert” or rectify the AC voltage coming from the transformer into the high DC voltage needed by your valves in your amplifier. The output valves need the highest voltage […]
Electrolytic Capacitors You find electrolytic capacitors in the power supply and decoupling of valves in Hifi and guitar amps. They are like a battery because they have a positive and negative terminal. In you amp power supply they can have values of 22 up to 200 or more uF ( uF= micro-farads). Electrolytic capacitors store energy, and often they are working at voltages of 500 volts DC ! When you switch off your amp , they
Small Capacitors in Guitar Amps Your amp is filled with small capacitors as in the picture below. They come in many different colours so this is jut a sample In simple terms, is in the filter circuits ( tone shaping) or to pass the audio ( AC) signal to the next stage of the amp while blocking the DC voltages. Values are typically in the range 0.001 to 0.47 uF. In valve amps there are
New valve testers now installed. Click here and see how we are ensuring you get the best quality valves.
Genalex KT88, EH 6973 & Tung Sol 9591A in stock
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