Hi guys
I have this home built power amp.
I'm trying to figure out
1. How to measure output wattage?
2. Whats the best...
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Home built power amp
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No luck with Bose.
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Bose 360 Receiver service manual
Hi
Anyone got any info on the Bose 36 receiver.
Can't seem to find any schematic online.
The one I have works but distorts...
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No i'm not an authorized servicer for any brand, but it's something i've been meaning to look into.
Must have a look on this forum for advice about...
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NAD C355BEE
Hi folks
I have a NAD C355BEE amp in for repair. It was in with me before but the problem rectified itself.
Unit was in protect mode...
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So just to update on this. I got a new mains transformer installed it but there was still a problem.
With power being applied I could hear some sort...
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Just to update. I replaced the output transistors with the originals and all seems to be well.
Thanks for the input.
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Brilliant thanks a million.
I managed to get the voltage problem sorted.
I connected I think pin 4 of the op amp with no voltage to one that...
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dynacord CMS 1600 Schematic
Hi all
Would anyone have a schematic for a Dynacord CMS 1600?
This is the one with the SMPS.
I have couple of channels...
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Yea I've seen the negative voltages before and always wondered what the deal was with them.
Apparently the G stands for PB free package. Lead free...
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Another quick question
Can I replace MJ11015 with MJ11015G?
The G's are much cheaper on Farnell.
Voltage is -120 rather...
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Thanks for the replies.
Yes the transistors in the amp are MJ11015/6 Darlingtons.
So I would have to replace with originals?...
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Output Transistor Question
Hi guys
I have a HK ACTOR AT115 Sub A.
It's a powered sub woofer. I have found a faulty output transistor.
It uses ...
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One of the FBT Pro MAxx 14a just came in today.
It has an intermittant fault. It turns on, works for a while then cuts out out. Peak light...
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Thanks guys
Yep it turned out to be no load connected. That's why the relay wasn't switching.
I was testing this with no output valves...
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Marshall VBA 400 repair
Hi folks
I am having a little difficulty repairing a Marshall VBA 400 bass head amplifier.
Initial problem was that it was blowing the...
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I was pretty certain the transformer was dead a few months back
but will defo re check this as it will cost a few quid on parts just to test the rest...
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