1090
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Marantz 1090 Power Amp Transistor Replacement
Hello, all. I have a 1090 on the bench that had a failure in the power amp driver board. It appears Q718 shorted from the base to the emitter. The transistors in the path current flowed all seem to be effected, though Q718 is the only one with a dead short. I'm going to replace all the effected...- kanurys
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- 1090 marantz substitution transistor
- Replies: 7
- Forum: Marantz Audio
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1090 Basket Case
Okay, so I bought a 1090 on craigslist for $50.00 to use for parts for a 1090 that I recapped. This unit was filthy inside and someone had pulled 1 output transistor from each channel, a 588 on one side and a 618 on the other. I was just going to take the cosmetic parts I need and trash the...- Richs_Trains
- Thread
- 1090 bias current idle marantz outputs
- Replies: 8
- Forum: Marantz Audio
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MARANTZ 1090 ISSUES
Hey guys, some advice if possible. I bought a beat up 1090 and figured I would try a re-cap and see how I do. I replaced all the electrolytic caps with same value audio grade caps, but did not change any ceramic or film caps. The unit had issues when I bought it and the re-cap did not change...- Richs_Trains
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- 1090 loudness marantz tone switch
- Replies: 23
- Forum: Marantz Audio
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Good upgrade or waste of money ?
Hello fellow AKers, I currently have a Marantz 1090 as a SS amp and my dad wants to buy one amplifier whether for me or for him. If the amplifier goes for me, he'll take the 1090, otherwise, i'll remain with the 1090. The amplifier i've been watching these days is the Sony TA-F5A (i just can"t...- TheFrenchBob
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- 1090 marantz sony ta-f5a
- Replies: 10
- Forum: Solid State