healy wrote:Let me suggest a place to start: First, in addition to changing all of the
caps, you will want to change all of the plate resistors for non-inductive metal
film versions. Also change all of the cathode resistors and use tantalum
capacitors for the bypass caps (I use military grade axial lead versions).
This, especially for steel, will greatly improve the high frequencies yielding
the pure and clearer bell like tones. This is very important. Next, after you
have chosen the tubes (no matter who says what, American made tubes are way, far
the best) you will want to carefully examine the phase inverter / driver
network. This is, as they say, where the rubber-hits-the-road. Finally, the
careful setting of the bias has a lot to do with the good sound. There are a
few other things but this is the main idea.
gpilcher2001 wrote:So can I take it that your using them? If you are have you had any noise or reliability issues and are they real sensitive to heat? I.e. Should I use a hemostat when soldering? Thanks Greg....
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