yup, I just need the Premier 12 schematic for a local customer. *pop* then no audio.
Tubes arent my strong suit . I've specialize in solid service since 1980.
I'm currently regional service for Yamaha Denon Marantz McIntosh Hegel Levinson Audio Research Arcam etc.
We also do vintage Sansui Pioneer Yamaha Kenwood plus. I also make the STK0050+ and other replacement I sell on ebay. 10% discount and free shipping if you skip ebay.
I am an audio fanatic tho. My home speakers are a mutt. JBL LE-15a 2245 476Be/2395 lens, active crossover dbx 481 with Yamaha M-2 amps.
great fun.
old Newbie.
- AnotherJohnson
- Ultimate
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- Joined: Sun Apr 26, 2020 12:29 pm
- Location: Tennessee
Re: old Newbie.
Sounds like a fuse, or a blown resistor.
Caps and tubes usually degrade over time. Of course s bad cap or tube could cause a fuse or resistor to blow.
No obvious shorts? Like a speaker cable touching + and -? Or other load short?
Caps and tubes usually degrade over time. Of course s bad cap or tube could cause a fuse or resistor to blow.
No obvious shorts? Like a speaker cable touching + and -? Or other load short?
It’s just stuff. I like mine. I hope you like yours. I probably like yours too.
Re: old Newbie.
Agree. I would check the fuses and inspect the internals for any burn marks or obviously damaged components.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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- Beginner
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- Joined: Thu Aug 19, 2021 3:55 pm
Re: old Newbie.
Thanks everyone. I was brave enough to power it up and HORRIFIC ARCING SOUNDS ensued.
I pulled the top cover plate and there is plenty of corrosion.
It seems the +430 line is routed rght next to a ground trace.
After scraping and cleaning the PCB it works well.
but well enough? 70 watts 0.03% dist just below clipping with old winged C 6550 outputs.
someone said 120 watts expected.
chris
I pulled the top cover plate and there is plenty of corrosion.
It seems the +430 line is routed rght next to a ground trace.
After scraping and cleaning the PCB it works well.
but well enough? 70 watts 0.03% dist just below clipping with old winged C 6550 outputs.
someone said 120 watts expected.
chris
- AnotherJohnson
- Ultimate
- Posts: 5219
- Joined: Sun Apr 26, 2020 12:29 pm
- Location: Tennessee
Re: old Newbie.
That’s 120ish into 4 ohms.
What are you loading it with? 8 ohm power resistors don’t look much like speakers.
What are you loading it with? 8 ohm power resistors don’t look much like speakers.
It’s just stuff. I like mine. I hope you like yours. I probably like yours too.
- AnotherJohnson
- Ultimate
- Posts: 5219
- Joined: Sun Apr 26, 2020 12:29 pm
- Location: Tennessee
Re: old Newbie.
Is it on the 4ohm taps? Or the 8 ohm taps?
It should be on the 4 ohm taps.
Also if there’s a lot of corrosion, look for failed caps.
It should be on the 4 ohm taps.
Also if there’s a lot of corrosion, look for failed caps.
It’s just stuff. I like mine. I hope you like yours. I probably like yours too.