Destroyer x Amplifier...Dx amp...my amplifier

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vzaichenko

vzaichenko

R.I.P.
Joined 2010
cucicu said:
thank you very much for reply.
I think that adding all that stuff you suggested could solve the problem, but I can't understand why the other realizations of dx amp work fine but not mine. Adding emitter R means solder them under the pcb and cutting copper traces, and the same for the miller caps on tip...
I think I will leave this project. I have a pair of pcb ready for DX BLAME amp and all related components buyed on digikey. the transistor I have are MJL3281/Mjl1302.

Or I could realize another class AB amp, stable and with no problems...have you got any suggestions? I was looking at symasym amp (I realized it in the past and it worked good, but I didn't like the sound ver much :( ).
I have all the components for symasym, I miss only mje15030/15031....

I'll appreciate any suggestion to listen and enjoy some music,....help me please :hypno1:
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I should not mention it in this thread, but look at the link in my signature, the one on the right there ;)
 
meanman1964

meanman1964

Member
Joined 2006
cucicu said:
thanks a lot. i wa looking for p3a by R. Elliot (I ve all the components ready) but can't find a valid layout for pcb ready to print

q1 & q2 are bc559c
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I've 2 populated boards and it is fully working;If you are want them let me know .I also have 2 emty boards of the this amp

Are you shure about Q1-2 they are NPN you need PNP ?You need bc549
I can send you some 2n5401 if you want
Here a link to help in the future http://users.tpg.com.au/gerskine/greg/PNP Small Signal Transistors.htm
 
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meanman1964

meanman1964

Member
Joined 2006
cucicu said:
there are some errors in that link...bc549 is NPN, bc559 is PNP

about the board...i think shipment from USA to italy is very expensive and takes a long time...

I only need a p3a layout file...

I founded this, would you give me your opinion about it , please?

An externally hosted image should be here but it was not working when we last tested it.
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I live in Belgium
Let's talk over mail
 
vargasmongo3435

vargasmongo3435

Member
Joined 2011
hey guys what about the solder bride is touching the trace, you guys thing it might be the reason the output blow up ?
 

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Circlotron

Circlotron

Member
Joined 2002
destroyer X said:
Once in my life i learn something important by a forum guy that put himself "on hiatus"... he felt people had the desire to banish him....but people have not banished him..... he felt that "on the air", as a sensitive guy he decide to banish himself.... and then he posted an image "on hiatus" in the place of his picture and decide not to post anything more as a protest of something that have not happened....no effective banishment happened...but he perceived a "conspiracy" evaluating moderators action related him... he understant "against" him.
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Ahhh, gromanswe? -> diyAudio - View Profile: gromanswe
Nothing since 3rd August 2002.
 
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