Sunday, December 5, 2010

stereo single ended EL34 amp with phono stages

 pre drilled chassis , spraypainted matt white as requested by capten dol 'air'.

 heater and power supply wired first.
 close pic from the back

 copper bus for easy grounding ,combine from left to  right channel.
 complete wiring  ,all signal line is shielded to avoid hum,
amp complete built on nov2010 , with extra preamp stages for phono signal level.
4 x 12ax7 ,2 x el34 in triode mode,
el34 plate Voltage- 304v both left and right.

 el34 (right) current draw -73mA
el34 (left) current draw -80mA
bias point sit exactly at 300V 80mA  , which is max for the plate dissiption.
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3 comments:

  1. UnknownDecember 14, 2010 at 3:08 AM

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  2. UnknownDecember 14, 2010 at 3:11 AM

    excellent work abe! admire your passion, dedication & chippitation. kawe pon mau order satu bila kawe tau apa kawe mau. huhu..

    ReplyDelete
  3. safuanDecember 14, 2010 at 9:47 PM

    dude.if need good+quality photos to upload to ur blog call me or hariz.we can work something out for you be.hehe

    ReplyDelete

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