JMP/HBE
Well-known member
https://i.imgur.com/ahRpcxq.jpeg
Smoke R201
You prolly blew a tube and it took the resistor with it.
Bugera G5 head stopped outputting sound
- Thread starter ehdwuld
- Start date
Smoke R201
You prolly blew a tube and it took the resistor with it.
ehdwuld
A Ficus
https://i.imgur.com/ahRpcxq.jpeg
does it look black and brown 100 ohms
or black and blue 10M ohms
JMP/HBE
Well-known member
10 to 1 it is the same value as the " good " one. Both devices are the same, both capacitors are the same, and the value numbers are sequential ( C134 - C135, R201 - R202 ). That resistor got HOT, so it very much changed the color of the bands. This pic isn't much better, but it is clear enough to me they are the same.
JMP/HBE
Well-known member
No look different banding to me. Or one is in backwards or something.
JMP/HBE
Well-known member
https://www.digikey.com/en/resource...ors/conversion-calculator-resistor-color-code
I get up @ 03:00 hrs for work so its close to my bedtime but maybe this helps.
I get up @ 03:00 hrs for work so its close to my bedtime but maybe this helps.
misterwhizzy
Well-known member
You can't put a resistor in backwards.
JMP/HBE
Well-known member
The colors of the banding is backward between the pair. They look like either grid resistors or bias resistors.
I never said they were installed backwards.
you know what this is like ?
Its like trying to cure someones cancer on a guitar forum coupled with "who shot john"and solve a murder.
ehdwuld
A Ficus
I feel your pain
i had to endure
Its trash from China
For the first four days of this thread
I think your EE got it backwards, or you understood it wrong? If you put two resistors in series ( one after the other ), the wattage potential is whatever the first resistor in line from the source is. If you place two resistors in parallel ( side by side ) you double the wattage potential, and the resistance is halved ( assuming both resistors are the same value ).
In this case, I think the transistors and resistors that we see are what regulate the bias of the amp. I'm guessing he has the Infinium version. The Infinium versions of the amps have a bias/tube life indicator " technology " that balances the tubes and gives you an indication of whether a tube is bad or not. The problem is when THAT technology breaks, it is destined to take something else out with it. In this case, I think one of the tubes was either beyond its useful lifespan and it took the sensing circuit out with it, or vice versa. In either case, it looks at the moment as if only the resistor has burned and that no serious damage has been done to the remaining circuit hardware. A new tube and replacement of that resistor should end the woes. If it fails to work after that, well, unfortunately, it will need to go into a skilled mechanic's hands. At which point, you have to decide if the value of the amp is worth the cost of repair.
ehdwuld
A Ficus
Ok so i have some 1/4 watt resistors in a set
i am thinking this one needs to be higher wattage
As the on in ewizards post looks to be heated as well
So the largest wattage i can get short of a ceramic is a 5 watt 22k ohm
I ordered a set of 5 for $7
They will be here soon
Ewizards
As your image looks to be destined for the same fate
I will happily send you one of the five
If you send me a pm with an adress to ship to
i am thinking this one needs to be higher wattage
As the on in ewizards post looks to be heated as well
So the largest wattage i can get short of a ceramic is a 5 watt 22k ohm
I ordered a set of 5 for $7
They will be here soon
Ewizards
As your image looks to be destined for the same fate
I will happily send you one of the five
If you send me a pm with an adress to ship to
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