Heres a quick & dirty amp i threw together with parts from disassambled and scrapped projects. The SOA of the TIP35/36C transistors is just laugable, so just for the heck of it i took all the TIP35/36C's i had and put them all in parallel, which ended up at 5 pairs.

Thus this is a piece of crap amplifier that sounds bad so i dont care if i blow it up.

Pics:
http://i.imgur.com/zHLaX.jpg
Wired up:
http://i.imgur.com/TyFk5.jpg
http://i.imgur.com/TID78.jpg

And finally, a video:
http://www.youtube.com/watch?v=Un_AzGz5vGo

 

and 361W RMS(722WPK) 38VAC 50Hz into 2 ohms later its dead. One of each type of the output transistors failed due to exceeding SOA, the remaining 4 sets are still alive but for safety reasons im gonna can them all, i have no use for these wimpy transistors anyways.

 

38V RMS into 2 ohms makes a power of 722W which is 1444W peak power.

The "music power" peaks of the music are probably higher.

 

38VAC = 38V peak, around 19 volts rms. Atleast the peak of the waveform was at around 38V on the scope.

 

38V peak is 38V x 0.707= 26.9V RMS, not 19V RMS.
If your 'scope showed 38V p-p then it is 19V peak which is 19V x 0.707= 13.4V RMS.

 

I meant 38V peak swing each way from zero.

Heres a new one with beefier transistors, a SOA of 4A at 50V each, compared with 1A at 50V for the TIP35/36.

That drive board is not the right one for the project but good enough for testing.

http://i.imgur.com/felhh.jpg

And a short video, scope is set to 10V/Div: http://www.youtube.com/watch?v=S4l8xhctHF4

 

I meant 38V peak swing each way from zero.

Your numbers are meaningless. You don't know what are RMS, peak or peak-to-peak voltages so I will not talk to you anymore.

 

Got schematic?

 

No i don't, everything regarding amp design have since 3 days been lost in a hdd crash.

Only schematics available is what is already posted in this thread.

And yes i know what rms, peak and peak to peak is, peak to peak = tip to tip of the since, peak is from zero volts to one tip of the sine and RMS is peak divided by 1.414.


So peak-to-peak voltage was 76 volts, peak was 38 and rms was 26.8v.

No need to be rude, but if thats the way you want it, i'll quit posting my projects here as well.

 

@ Experimentonomen

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