100w amplifier

[blindmole]

I need a simple scheme of 100W amplifier. I have read a lot of similar themes, but I have not found anything suitable. I found a few but the reading of certain instruments are not working or bad quality.
Offer tested schemes. And cheap.
Thank you.
Modest

 

[blindmole]

someone help me

 

[Bone]

Look here 60-80W Power Amplifier or here http://users.tpg.com.au/users/gerskine/dxamp/ both are 100 watt amplifiers and well tested. See also this thread http://users.tpg.com.au/users/gerskine/dxamp/ .
I suggest that you search this forum and also use Google as there are many tried and tested designs out there.

 

[blindmole]

thanks. now i have some questions:
60-80W Power Amplifier
to what can be changed Q7 and Q8?
and what is BR, SIM1 and SIM2?

 

[simas-r]

http://www.diyaudio.com/forums/solid-state/100907-st151-100w-amplifier.html
gal sitas patiks?

 

[blindmole]

non english removed by moderation

 

[jaycee]

What kind of power transistors can you get?

For 100W RMS into 8 ohm you need a circuit capable of running from 55v power supply rails. it will need at least 3 pairs of power transistors - perhaps two pairs of TO-3 type devices

 

[blindmole]

i dont know... i am from lithuania. so i buy parts ir lithuania shops. What can you offered a lower cost. I then look in Lithuania there is an

 

[jaycee]

Then your problem is getting genuine power transistors. If you cannot get genuine MJ15003/4 or MJ15024/5 transistors, then you won't be able to get 100W.

 

[blindmole]

I cannot get genuine MJ15003/4 or MJ15024/5.I could not be 100W or less. maybe you can say what put in their place?

 

[pinkmouse]

If you could cope with 60W, I'd be quite happy to send you a couple of pairs of 15003/4 in T03 free of charge. I have a soft spot for Lithuanians, long ago, I once fell madly, (and unrequitedly), in love with a beautiful young lady from your country.

 

[GoranB]

If you could cope with 60W, I'd be quite happy to send you a couple of pairs of 15003/4 in T03 free of charge. I have a soft spot for Lithuanians, long ago, I once fell madly, (and unrequitedly), in love with a beautiful young lady from your country.

LOL!!
Did You had a polish one also??

 

[pinkmouse]

Sorry, no, but if you know of any...

 

[GoranB]

Sorry, no, but if you know of any...

Hmmm...I could arrange you something..for couple of Black Gates

 

[jaycee]

I cannot get genuine MJ15003/4 or MJ15024/5.I could not be 100W or less. maybe you can say what put in their place?

If you can't get those, then it is unlikely you could get any suitable power transistors to get 100W. MJ2955/2N3055 transistors will only safely get you about 40-50W.

Maybe you have better luck getting MOSFETs, perhaps IRF640 or IRF840 ? If so then maybe you could build Quasi's NMOS200 design using 48v supplies.

 

[Tajzmaj]

Here you can get everything you want. Because your country has it's own site.....
Farnell LT | pasaulyje lyderiaujantis elektronikos ir technin?s prie?i?ros, remonto ir valdymo produkt? platintojas.
If you need new and reliable components.
How many transistors do you need. I also have box full used but still good tested transistors....just pick up the schematic ......

 

[digits]

Build Carlos' original DX amp, all data is available on this site. It uses only no fuss no mess parts, gives solid output, with very strong base. Sure you get more defined amps, but few as fun and value for money as that, especialy if you like bass.

 

[osscar]

Hello,
in this power category, I would recommend Leach amp - stable and with built in I limiter. Of course the circuit will be more complicated but in the Internet you will find good description in professor site.

 

[john_ellis]

Hi
You might want to consider using a bridge circuit with pairs of 2N3055/MJ2955 in each. A pair (2x 2N3055/ 2x MJ2955) will give you 100W into 4 ohms from +- 35V rails and a bridge will give you 100W into 8 ohms.
Can you get MJ21193/MJ21194? They'd make a good 100W/8 ohm amp (singles). Suitable drivers are 2SC2238, 2SA968; 2SC4793/2SA1837 or MJE15032/MJE15033.

John

 

[lineup]

I agree. MJ21193/MJ21194 are very good power devices.
Good enough.