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FDP Forum / Amp Mods, Repairs, and Projects / 1962 Fender Deluxe 6G2 - Burning Smell

chaosrecords

US

Nov 2nd, 2017 04:11 PM   Edit   Profile   Print Topic   Search Topic

Hey, I have a 6G2 Deluxe that the tremolo was a little weak with, and I brought it to a well known area tech a few months back. He replaced a few caps and resistors, and the amp works great.

Except for the smell, I have owned a lot of Fender amps over the years, this smell is different, kind of metallic, almost like a burning smell, but there is no smoke, and the amp works very well, no noise, hiss, pops, crackling, humming, and the transformers and chassis are at normal operating temps. The tubes do not glow red either. Could this be a normal smell? I haven't owned a 6G2 brownface before, but I have a 6G6 Bassman and it doesn't smell like this.

Peegoo
Contributing Member
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Enjoying

the downtime
Nov 2nd, 2017 04:34 PM   Edit   Profile   Print Topic   Search Topic

If everything is working okay, it may simply be some of the new components 'cooking' a bit as they go through heat/cool cycles.

I'm guessing you're not regularly playing the amp since the time it was worked on.

If you fire it up at least once a week and play it, and it's still making the funky hot-metal-parts smell after a month or so, have it checked out.

A good tech can pop the hood, run the amp, and take a look at the chassis components with an IR camera to see if there are any unusually hot items in there causing the smell.

chaosrecords

US

Nov 2nd, 2017 04:43 PM   Edit   Profile   Print Topic   Search Topic

You are correct. I'm babying it, the amp is practically mint except for those few cap changes, and I have only fired it up three times in the last couple of months. I guess I have to give her some gas and see how she goes, eh?

Peegoo
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Enjoying

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Nov 2nd, 2017 05:53 PM   Edit   Profile   Print Topic   Search Topic

Yeah, that funky smell is quite common when an amp is gone over and some new parts are installed. Play it some more and that smell will reduce over time.

Always make sure the rear of the amp (and the top--if there are vent holes there too like on some Voxes, Marshalls, and Crates) is clear of any obstructions.

One of the ways some players kill their amps early is to park it on a couch, leaning back. That blocks the path of airflow.

An amp cabinet works like a little chimney: cool air enters the lower portion of the cabinet and is drawn upward around the tubes by low pressure created by heated air exiting out the top portion. That little chimney effect keeps things from overheating.

The #1 failure mode for electronics is heat. The cooler you keep things, the longer they will last.

chaosrecords

US

Nov 3rd, 2017 12:34 PM   Edit   Profile   Print Topic   Search Topic

Got it, much appreciated gentlemen.
I'm running super cool, I checked the transformers and chassis after about an hour and a half of jamming on it. Off topic, the 6G2 series of circuits is AWESOME. The amount of control you get from the volume knob and picking intensity, as well as the compression and drive you get when cranking the amp and running a strat with a humbucker is just so sweet. I put a Sylvania 12AT7 gold pin in the V2 spot with excellent results.

(This message was last edited by chaosrecords at 02:35 PM, Nov 3rd, 2017)

FDP Forum / Amp Mods, Repairs, and Projects / 1962 Fender Deluxe 6G2 - Burning Smell




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