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….

This a longer than usual article talking about the different type of resistors. Resistor technology has changed over the decades . What is common is that many types change their…

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"Great service as always" - NG. 1st Jan 2020

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"Fast service even though it was close to Christmas , and great fully tested product .."- Sovtek 5881/6L6WC quartet`T.M..28th December,2019

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