JVM410H - Burning Smell & No Signal
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- čas přidán 16. 06. 2022
- Chasing an elusive reported problem on this one.
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Pappa needs a brand new camera and lens (don't tell the missus).
Here we see what's required and what we have to order.
Stay tuned for the next episode where we dig in and get our hands dirty. - Zábava
I almost spit my coffee out when you said "the bigger the cap the better the toans". You are my favorite amp tech.
Its Marshall-palooza there! Super interesting watching you work your way through that complex circuit.
The burning smell must have come from in between the ears of whoever put those ridiculous caps there.
Sweet Down riff.
I didn't mind the Fluke meters, I have a couple meters for my projects. Great for watching one while measuring other stuff. You can have friends over for some knifey flukey too🍻😁. JVM sounds good with that guitar! Even with the phone mic
Yes, I should do a good metal / sludge style demo with downtuned stuff.
There aren't many techs channels who demo with the real heavy riffs.
It is all hype. A capacitor is a capacitor. Thanks for the video.
yeah nah
A car is a car. No difference between a Dodge Neon and a Porsche Cayman. 👍
let's goooooooo 🔥🔥🤘🤘💚
Good video. I don't like attenuators or load boxes myself. I think an amp sounds better without them.
Attenuators suck the shit out of your tone and the balls drop out of the amp - If your amp is too loud, sell it and buy a smaller amp.
most marshall heads you can use the head shell as a stand
The Captor X is rated at 100W. If you drive the amp hard the load resistors in the captor vibrate and you can hear the amp output! The light in the Captor does go red if you overload them.
Wow, that LED thing is pretty cool, I'll admit.
I'm so tired of people thinking different caps make a world of difference in sound quality.
Yes, if there is any diffference, and there can be, it's only between very different types of capacitor, and only in certain positions in the circuit, and is usually extremely subtle.
Hey, Brad. What do you think of the build quality of the JVMs?
Thanks!
Can't remember off the top of my head, mate.
But I don't see that many, so they can't be too too bad.
I think I've got a few videos on them if you want to flick through the archives.
@@BradsGuitarGarage Will do. Thanks!
Put some stank on it!
What could possib-lye go wrong? That’s the first thing that’s ever gone wrong….
Use chopstick , better do not touch, it can bzzzt bizzzt the hell out of you.
I think drop C scared most everyone off.
Oh well, you get that.
@@BradsGuitarGarage And I thought it was almost poetic!
I share your disdain for the myths perpetuated by those who make performance claims with no data to back it up. Musicians typically wouldn't understand technical data, nor know how to measure for it. But we electronics techs know the truth: if it can be claimed, it can be measured. If it can't be can't be confirmed by measurement, it can't be claimed. ( I'm a retired electronics tech with 40+ years experience. I now work on guitars and amps. )
Yes, it's very challenging staying ahead of the bullshit because it makes money and gets the clicks.
Not to mention that anyone calling it out gets accused of being negative, dismissive or unable to tell the difference etc etc etc.
I did an experiment with five different .022 uF tone caps where I measured the reactance, sine wave and pulse response. Prices ranged from $2 to $28. All had the same results! The $28 Emerson paper in oil cap was no better than the $2 Mallory. Same with the two $8 Sozo caps.
Absolutely. There are factors like microphonics and temperature coefficient, but they only tend to come into play when dealing with the really crappy spec ones. I steer away from silver mica due to expense and reliability issues.