McIntosh 240 - can it be saved?
- Thread starter Lo-Fidelity
- Start date
charlief64
Active Member
If he wants to throw it away, I have the perfect sized trash can. I'll even pay shipping
dshoaf
That high voltage buzz
Transformers are potted. As long as they're ok, it can be restored electrically. I rather like taking the ratty ones and getting them going again.
Case in point are the MC75s shown here as received. Yes, that's stipple ceiling material as well as rust, etc. They cleaned up rather well. Our own esteemed Analog Addict now has them.
Good luck with that one!
Cheers,
David
Case in point are the MC75s shown here as received. Yes, that's stipple ceiling material as well as rust, etc. They cleaned up rather well. Our own esteemed Analog Addict now has them.
Good luck with that one!
Cheers,
David
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Lo-Fidelity
Super Member
Well I had to go out to the shop tonight and open her up. Barely know what I am looking at, but it fun trying to trace the wire paths and look over the parts. Looks like the capacitors are toast, but didn't see any evidence of fire or trauma. Two wires look like someone nicked the insulation with the soldering iron. Any thoughts on these pics?
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Lo-Fidelity
Super Member
TR6man98
Well-Known Member
Wow!
This really looks neglected! There was a similar one on eBay recently....
Any away, inside pictures show reasonably well. Or just better...
Cost of restoring this one might be high comparing the end value but if you could do the work, even just exterior cleanup, you might come ahead.
Good luck with your restoration, I think this amp is worth it...
This really looks neglected! There was a similar one on eBay recently....
Any away, inside pictures show reasonably well. Or just better...
Cost of restoring this one might be high comparing the end value but if you could do the work, even just exterior cleanup, you might come ahead.
Good luck with your restoration, I think this amp is worth it...
Lo-Fidelity
Super Member
clinic-audio
all on YAMAHA untill 1990
MC240 Can it be saved ?
Hello
I have 2 MC75 on the bench right now for restoration , chassis need to be replaced
mine are more beautifull than the one you can see usually on the web :thmbsp:
Those one are very rare "worldwide" version
to answer to your question : YES , I will do it if I was you !
Hello
I have 2 MC75 on the bench right now for restoration , chassis need to be replaced
mine are more beautifull than the one you can see usually on the web :thmbsp:
Those one are very rare "worldwide" version
to answer to your question : YES , I will do it if I was you !
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How do you know the caps are toast? You can't tell by looking at them. I wouldn't be surprised if it worked fine once you brought it up on a variac for a day or so.
Multivoltage and 50 cps power friendly, I'd assume.
Sent from my SM-N900V using Tapatalk
clinic-audio
all on YAMAHA untill 1990
"worldwide" version is with a switch 115V/230V with a red plate who avoid a wrong selection
Hre is a short list with "worldwide" version :
MC40 with voltage switch and red plate + decal
MC75 with voltage switch and red plate + decal
MA230 with voltage switch and red plate + decal. Top cover behind front panel without the long decal
MC225 with voltage switch and red plate + decal
MC240 (late) with voltage switch and red plate + decal
MC275 with voltage switch and red plate + decal
C22 with voltage switch and red plate + decal
Silk screening is different ( than US version ) for all of these models !
here is the C22 "worlwide" decal
Hre is a short list with "worldwide" version :
MC40 with voltage switch and red plate + decal
MC75 with voltage switch and red plate + decal
MA230 with voltage switch and red plate + decal. Top cover behind front panel without the long decal
MC225 with voltage switch and red plate + decal
MC240 (late) with voltage switch and red plate + decal
MC275 with voltage switch and red plate + decal
C22 with voltage switch and red plate + decal
Silk screening is different ( than US version ) for all of these models !
here is the C22 "worlwide" decal
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Lo-Fidelity
Super Member
Lo-Fidelity
Super Member
Wow! Those look great!
Molding seams. Shouldn't be a problem unless they're actually split.
Lo-Fidelity
Super Member
If you look close at the one on the right you can see a crack parallel and below the seam.
Listen - Mc240s are up to almost 55 years old in some cases. Restoring something cosmetically can be overrated.
Spray it down with WD40 - let it sit, wipe it off, bring it up on a variac for a day or so, check the voltages and give it a go.
At the end of the day it's still a McIntosh Mc240 and a great amp. And it will sound good enough. And it may be within spec. Who knows? It will give you lots of enjoyment. No need to go overboard with new chassis, etc. Why take away all the years? I bet it wouldn't look bad with a wipe down.
Spray it down with WD40 - let it sit, wipe it off, bring it up on a variac for a day or so, check the voltages and give it a go.
At the end of the day it's still a McIntosh Mc240 and a great amp. And it will sound good enough. And it may be within spec. Who knows? It will give you lots of enjoyment. No need to go overboard with new chassis, etc. Why take away all the years? I bet it wouldn't look bad with a wipe down.
