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Old 17th August 2012, 07:16 PM   #21
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Here's some questions...

1-What out put devices are used on this amplifier?
2-Do they have to be matched?
3-Does any other transistors need matching?
4-Do you have the correct biasing used in the original 7100?
5-Is this a balanced design or is the input board capable of receiving balanced signal?

Thanks
Do
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Old 18th August 2012, 02:47 PM   #22
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1.Bipolar Toshiba transistors - 2SA1986-O/R + 2SC5358-O/R
2.Yes.
3.Yeap - 2SA1376 + 2SC3478 and 2SA1480 + 2SC3790
4.In the service manual we have somethink like - Biass Current Adjustement for Power Amp Assembly, in other words - yes.
5. It's a balanced design from start to the end, just like the original one.
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Old 25th August 2012, 05:16 AM   #23
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UP
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Old 18th September 2012, 03:35 PM   #24
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SOLD.
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Old 23rd February 2013, 07:24 PM   #25
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Hello
Where i can buy this PCB pls ?
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Old 19th September 2013, 07:32 PM   #26
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I would be interested on a set PC board..
Greetings G
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