i have one combo amp 40w and with guitar distortion i cant play it over 50% volume its too loud
i already built box for it when amp is finished (hopefully xd) i will finish the box, like sanding and the paintjob so after that i can put it all together and i have 15inch cabinet (speaker ) 60w that i will use in combination with this amp. thats a plan xdd
If the power was turned on without the screw, then the base could connect to the collector and the transistor could burn out or degrade.
The same thing could happen to another transistor if the heatsinks touched each other.
The same thing could happen to another transistor if the heatsinks touched each other.
Last edited:
it didn't happen i removed screw because i re arranged the position of heat sinks so that's that. later i added it so it is ok, it dont touch anywhere.
The guys who drew the schematic might have the best sight to show you the pinout on the board.
Glad the parts arrived.
Hugo
Glad the parts arrived.
Hugo
i need only small transistors to be labeled from the above view as in pic i sent, i dont want to risk tbh xd btw it took more time than i anticipated but they are here i only have to buy caps and i can finally can start to fix this amp for good 😀
Hi sg97,
Learning moment ... look up the original numbers on the internet, then the ones Hugo sent you.
Learning moment ... look up the original numbers on the internet, then the ones Hugo sent you.
yes thats my issue i cant just look at data sheets xdd i can install new parts i can check pinout for them but for those on board i have no clue. and i am not skilled enough to find out on my own and i dont want to make a mistake. thats why i ask if someone can help me with this 😀 rest i can do on my own.
It should be easy with this picture.
https://www.diyaudio.com/community/...ing-after-shorting-output.406712/post-7566589
And this one:
https://www.diyaudio.com/community/...ing-after-shorting-output.406712/post-7566589
And this one:
- Home
- Amplifiers
- Solid State
- transistor amp not working after shorting output