21 August 2011

Yamaha GA15

This how you make a practice amp,using power transistor like back in the old days,Push Pull design.Nowadays most amp uses the shitty TDA20XX IC.

Well done Yamaha.




13 comments:

Khalid Fadil said...

Still have my Yamaha, eh? Very nice...

YusTech said...

GA stands for Great Amplifier.

Khalid Fadil said...

Yes, it does!

Unknown said...

hi i have the same amp and the speaker was burned so is put it out of there.. is there anything that i could do so that i can use the parts that are still there..?

Unknown said...

Hello,

Someone has been kind enough to tell me the values of VR1 and VR6

Thanks

Abderrahim said...

Hi

i was trying to get that amp dissasembled but couldn't get that part off, is it glued ?

PhantomMessiah666 said...

Can you tell me the values of the R20 and R21

YusTech said...

My apology sir, I dont have the amp with me.

amereras said...

I am trying to add a line out connection to this truly " Great Amplifier".
Any suggestions on where to take a connection from.

QWERTY said...

Probably the headphone jack

amereras said...

I added new jack for the Line out and tapped it out from after the pre amp section. Only the clean sound comes from the Line out jack now. The distorted sound does not.

YusTech said...

This post was too long ago, I dont remember much of it now buy I appreciate the interest. Thank you visitors.

Unknown said...

Tengo problema!!! Con este modelo de amplificador!!! Al encenderlo hace un ruido extraño!!!
Alguien sabe a que se deberá???