Replacing Ic 2040 for Ic 2050 Blazer 158?

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juanito7
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Replacing Ic 2040 for Ic 2050 Blazer 158?

Post by juanito7 » Mon Jan 20, 2025 6:34 am

Hello everyone,
I have a question, is it possible to replace the integrated circuit (IC) Tda 2040 for Tda 2050 to get more power out of the Peavey Blazer Transtube series?
Did anyone did this before?
In case that will be possible, is there other parts needed to be change.
Thanks a lot for any input you made have.
Juanito

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Pappy B
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Re: Replacing Ic 2040 for Ic 2050 Blazer 158?

Post by Pappy B » Tue Jan 21, 2025 10:25 am

Ive used TDA 2050's in the Addition Plus and old Gorilla amps with no problems. On paper it might show a little more output with the same input voltage but you won't hear it. To get more output you have to up the voltage going in. The reason I used them in the past was because they were locally available and cheaper.
The more I learn the more I realize how much I don't know.

juanito7
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Re: Replacing Ic 2040 for Ic 2050 Blazer 158?

Post by juanito7 » Wed Jan 22, 2025 5:08 am

Thank you Pappy B for your input,
Then is not that simple for me just to replace the IC, I am not an electronic technician.
That is true, in order to hear the difference in power I will need much more power than the IC 2050 can give.
Thank you.

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Pappy B
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Re: Replacing Ic 2040 for Ic 2050 Blazer 158?

Post by Pappy B » Wed Jan 22, 2025 1:13 pm

Actually the TDA 2050 can put out up around 50 watts but it has to have more voltage going into it than what your amp's power stage can give it.

You could use it as a substitution but if your 2040 is still good there is nothing to be gained.
The more I learn the more I realize how much I don't know.

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j0nsnell
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Re: Replacing Ic 2040 for Ic 2050 Blazer 158?

Post by j0nsnell » Wed Jan 22, 2025 3:52 pm

The current production of tda chips are obsolete. The equivalent is the LM1875.

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