Cheap 150watts amplifier

[sanbadgujar]

Hi this amplifier is origanaly found on circuittoday.com by seetharaman i am just posting it am trying to make it but before that i want some discussion on it

for detail please visit 150 Watt Power Amplifier Circuit Board
and 150 Watt Amplifier Circuit

 

[Bone]

Oh dear not this one again! You will not get 150 watts out of this amplifier. The SOA of the out put transistors will not allow it and they WILL fail. If you are lucky you may get half that 75 watts, but you will need a huge heat sink. This was originally "designed" by a guy called John Fisher/Tyrone and has never been tested at 150watts. See here: Cheap 100 to 150 Watt Amp

 

[TonyTecson]

agreed, good for beginners but do not use 45volt rails, start with a lower rail of say 20volts.....

 

[east electronics]

i wonder why nobody managed to remove this circuit from the internet ...

Probably it stays there to support the production of TIP 142-147 ....i presume that manufacturing companies love it .....The average inexperienced user will probably blow some of them before he understands that this is a crap with a catchy title ...

 

[TonyTecson]

yes that will be the price of tuition.....letting out the magic smoke.....didn't we all experience that at some point?

 

[sanbadgujar]

OK Tony give me good amplifier for +/- 45 v 5A supply around 100watts for 8ohum load

 

[TonyTecson]

here:60-80W Power Amplifier and DIY Audio Projects Forum • Elliot Sound Products - P3A 100W Amplifier

 

[sanbadgujar]

Can you give me PCB layout for 60-80w power amplifier as you mention and parts list thanks

 

[Bone]

Check out threads for P3A in this forum, there are plenty with PCB layouts.

 

[sanbadgujar]

Thanks Tony please give suggestion which amplifier is good for home hi fi system

 

[AndrewT]

They just showed you a good amplifier for home use.

 

[sanbadgujar]

Can any one have 60-100 watts Hi Fi amplifier by Rod Elliott PCB layout and can use 30-0-30 v 5A transformer for power supply to this amplifier please replay

 

[sanbadgujar]

OK Sakis can you have PCB Layout for 60-80W Power Amplifier by Rod Elliott

 

[AndrewT]

Ask Rod to sell you a PCB or two.

 

[sanbadgujar]

SIGMA 40 W BASE ON Philips origanal 40 wats ampli

hi all I have old Philips 40 WATS amplifier PCB with component install it has make some changes to original circuit

 

[gmphadte]

Go here
http://www.diyaudio.com/forums/chip-amps/206591-tda7294-power-transistors-amp-tda7293-come-also.html

No need for pcb fabrication.

Gajanan Phadte

 

[east electronics]

OK Sakis can you have PCB Layout for 60-80W Power Amplifier by Rod Elliott

It is been said way too many times ... What i do with the P3a is for personal pleasure only ..the specific lay out serves my criteria and of course i am not willing to give away layout or pcb .

feel free to design your own ...or buy dirt cheap original from Rod

Kind regards
Sakis