Tube Amplifiers
David D asked:

1. In direct torque amplifiers (transistor pair), how can I reduce the interference of RF ( "product; Blast" sounds during operation in mains AC or AC equipment such as light pipe)? It is the chief problem being wrong in this kind of amplifiers. 2nd It is the above problem may persist in the type of MOSFET amplifiers? 3rd Today, because the series is highly expensive - preferred the common PN junction transistor? You can give the advantages and disadvantages of the transistors of Darlington?


Comments

2 Comments so far

  1. cezar t on January 1, 2010 6:07 am

    1)>AC filters on the main power cord and rectifier bridge.Also a good RF shield for amp and low signal wires.
    2)>The transistor type is not the problem!!!!
    3)>I don’t know!!!!

  2. James @ Canon Wide Angle Lens on January 22, 2010 10:49 am

    Excellent job consolidating all that vintage stereo equipment information in one location. I will definitely refer anyone who is looking for vintage stereo equipment to your site. I especially like the section where you have them listed by price.

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