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timwebb 14th July 2012 05:54 AM

spund stream rubi 1000d
im working on this amp and i can only install half of the output transistors. ive replaced the group of transistors on the output driver card that was connected to the output gate. anything im missing?

Perry Babin 14th July 2012 08:57 PM

Post a photo of the board.

timwebb 14th July 2012 10:00 PM

1 Attachment(s)

Perry Babin 14th July 2012 11:27 PM

What happens if you install all of the output transistors?

timwebb 14th July 2012 11:41 PM

it pull more current than my meter can take. i can only install the 3 on the right.

Perry Babin 14th July 2012 11:59 PM

Does it draw excessive current immediately or only after the mute delay?

timwebb 15th July 2012 12:11 AM

after the delay

Perry Babin 15th July 2012 02:12 AM

Before the end of the delay, does the voltage on the positive speaker terminals swing toward the positive rail of the negative rail.

timwebb 15th July 2012 04:36 PM

from the negative rail.

timwebb 15th July 2012 04:54 PM

3 of the output gate resistors have 11.5v. the three on the left have -47v on the output gate resistor.

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