Custom Ming-Da 8 watt 300B mono blocs

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Bill Baker

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Custom Ming-Da 8 watt 300B mono blocs
« on: 27 Oct 2005, 10:44 pm »
Hello,
  I am cleaning out a bunch of gear. Below is a few shots of a pair of Ming-Da 300B mono blocs at 8 watts. These are not complete but a schematic would be provided.
 Everything is inside the chassis including the power supply. Some upgraded components. They are complete but no 100% assembled. Recommend rebuilding. These are a tweakers dream.

 I had the chassis done in black powder coat.

Asking $750 for the pair.

 Pair #2
  Below is another pair for sale that have many upgrades done. These are functioning units but occasionally blow the 300B's cathode resistor. I think it is a bad tube (always the same amp) but do not have time to verify this. Full details are listed below the bottom picture. This pair has the satin stainless chassis.

 Email or PM with questions.







 The amplifiers in the picture above have the following upgrades:
 NOTE: THE OUPUT TRANSFORMERS ARE THE SAME AS IN THE UPPER PICTURES. NOT THE HAMMOND AS SEEN IN THE ABOVE PICTURE

* Caddock 35 watt bias resistors
* Mills 12 watt 300B cathode resistors bypassed with Ruby Gold capacitors
* Dale/Vishay 3 watt WW Cathode resistors on 6SN7 tubes bypassed with Elna Cerafine capacitors
* Innerstage coupling capacitors are Audio Note copper PIOs
* Coupling capacitors to 300Bs are Theta AudioCaps
* Riken Ohm grid stop resistors
* Brand new pair of EH 300B tubes available.

 Asking $900 for the pair (without the 300B tubes)