Comments on: 90 W audio power amplifier based on transistor https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html Amplifier Project Schematic Diagram Thu, 09 May 2019 01:23:36 +0000 hourly 1 By: Patrick Draper https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-29118 Thu, 09 May 2019 01:23:36 +0000 http://amplifiercircuit.net/?p=1402#comment-29118 This circuit is horrible. Half of the output stage can not possibly ever drive the speaker because both sides are connected to ground. If you use ltspice to simulate it, you can see that it only creates half the waveform, and even that is horribly distorted. The power is abysmal as well, driving just a few tens of milliwatts when it drives at all.

Don’t build this. It is garbage.

]]> By: seniru wickramasinghe https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-27206 Sat, 02 Feb 2019 11:02:03 +0000 http://amplifiercircuit.net/?p=1402#comment-27206 Does it work realy? But i tried many times.but it was not working.why???????

]]> By: Protap Ghosal https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-15056 Tue, 03 Oct 2017 13:49:46 +0000 http://amplifiercircuit.net/?p=1402#comment-15056 0.33ohms resistance will it work

]]> By: yanyan https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-14679 Sat, 26 Aug 2017 05:06:19 +0000 http://amplifiercircuit.net/?p=1402#comment-14679 How much source is needed?

]]> By: Clint https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-8108 Mon, 23 Feb 2015 23:26:25 +0000 http://amplifiercircuit.net/?p=1402#comment-8108 1 uf and 4700 uf electrolytic capacitors? voltage ???

]]> By: Clint https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-8106 Mon, 23 Feb 2015 23:13:06 +0000 http://amplifiercircuit.net/?p=1402#comment-8106 what wattage are the resistors??? 1/4 watt? 1/2 watt,
1 5 10 watt?

]]> By: laltu adak https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-6878 Tue, 02 Sep 2014 11:02:55 +0000 http://amplifiercircuit.net/?p=1402#comment-6878 In reply to legato.

hi friends you know how much of volt needed this circuit

]]> By: legato https://amplifiercircuit.net/90-w-audio-power-amplifier-based-on-transistor.html#comment-4756 Fri, 20 Jul 2012 01:58:44 +0000 http://amplifiercircuit.net/?p=1402#comment-4756 how much voltage input is required to turn this circuit on?

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