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hank alrich hank alrich is offline
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Default SP1, NT2-a and TLM 103 mic files on line

Mike Rivers wrote:

On Mar 17, 11:26 am, wrote:

The cap off the casule is a mono ceramic, bad choice. I use a MIT
MultiCap there. I replace the 2sk170 fet which I find to sound cloudy
to a fast J305 from Siliconix. The bipolars are changed to Hitachi
2sa1083's. I up the polarization voltage from 40 to 57 volts which
increases output by around 5 db. The ouput caps are
enlarged to allow 20 hz to pass and those are bypassed with more MIT
caps. I use Dale RN55 resistors for the audio path. Panasonic FM
electrolytics are used for long term reliability. Some of mine I
installed Kimber black pearls silver teflon wire off the capsule.


Not much left of the original than the capsule and the case, is there?
Have you done any experiments with damping the metal parts or opening
up the grill?


Capsule, case, and the circuit board, which is easily accessed and looks
spacious enough and old fashioned enough for folks less skilled and
equipped than Jim to work with.

--
ha
Iraq is Arabic for Vietnam