very simple,cool circuit

LoveVirus · 15th January 2011, 05:38 AM

I found a very simple circuit, but also very effective, sadly, no one seems interested in this circuit!

Joachim Gerhard · 15th January 2011, 05:45 AM

Have you ever contemplated to use something better then the TL072 ?
Does it play, or is it just a schematic ? How about bias stabilty ?
To make it work i miss the input resistors. Does it really work without compensation ?

LoveVirus · 06:00 AM

Quote:

Originally Posted by Joachim Gerhard

Have you ever contemplated to use something better then the TL072 ?
Does it play, or is it just a schematic ? How about bias stabilty ?
To make it work i miss the input resistors. Does it really work without compensation ?

In practice, to increase the number of protection circuits, but I think it is in line with the principle of simple and practical as possible to minimize the nonlinear elements, not only see the simple circuit, it went negative!

Workhorse · 15th January 2011, 06:14 AM

Quote:

Originally Posted by LoveVirus

In practice, to increase the number of protection circuits, but I think it is in line with the principle of simple and practical as possible to minimize the nonlinear elements, not only see the simple circuit, it went negative!

What is quiescent operating point of your circuit?

Its Class-a or ab........

godfrey · 15th January 2011, 06:36 AM

Quote:

Originally Posted by Workhorse

What is quiescent operating point of your circuit?

Completely undefined. Oops.

Workhorse · 15th January 2011, 06:42 AM

Yeah............

LoveVirus · 15th January 2011, 06:46 AM

This circuit belongs to class b, the input signal is divided into both positive and negative part of the op amp is a power tube amplification were the final synthesis, the amount of output signal proportional to the input signal is maintained by the op amp's feedback.

Samuel Groner · 15th January 2011, 07:09 AM

U1B has positive feedback. Even if that's corrected the two opamps fight with their offset voltages--simply doesn't work in real world.

Samuel

LoveVirus · 15th January 2011, 07:50 AM

This is what I have been the actual assembly of the circuit, it works well, simple, sound is also very good.

Samuel Groner · 15th January 2011, 08:54 AM

That's a completely different circuit. Some might still argue that it's not the best power amp designed ever but it surely is simple and will pass audio.

Samuel

15th January 2011, 06:42 AM	#6
Workhorse diyAudio Member Join Date: Dec 2004	Yeah............ __________________ It's a fruitless endeavor to try and educate a fool that rejoices in ignorance

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Anyone have a simple circuit for . .	gehumph	Tubes / Valves	1	25th October 2009 05:52 PM
Looking for a simple circuit	Skitch72	Tubes / Valves	19	12th August 2009 07:31 PM
Help me with simple circuit	valterdaw	Car Audio	2	22nd August 2006 07:15 AM
Problem with really simple circuit!	Garbz	Solid State	14	8th March 2006 03:18 PM
simple circuit for beginner	JAZZ2250	Tubes / Valves	4	8th April 2002 01:33 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

15th January 2011, 05:45 AM	#2
Joachim Gerhard diyAudio Member Join Date: Mar 2009	Have you ever contemplated to use something better then the TL072 ? Does it play, or is it just a schematic ? How about bias stabilty ? To make it work i miss the input resistors. Does it really work without compensation ?

15th January 2011, 06:46 AM	#7
LoveVirus diyAudio Member Join Date: Jul 2010	This circuit belongs to class b, the input signal is divided into both positive and negative part of the op amp is a power tube amplification were the final synthesis, the amount of output signal proportional to the input signal is maintained by the op amp's feedback.

15th January 2011, 07:09 AM	#8
Samuel Groner diyAudio Member Join Date: Jun 2005 Location: Zürich	U1B has positive feedback. Even if that's corrected the two opamps fight with their offset voltages--simply doesn't work in real world. Samuel

15th January 2011, 08:54 AM	#10
Samuel Groner diyAudio Member Join Date: Jun 2005 Location: Zürich	That's a completely different circuit. Some might still argue that it's not the best power amp designed ever but it surely is simple and will pass audio. Samuel

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)