TSSA - The Simplest Symmetrical Amplifier - Page 46

Joachim Gerhard · 30th April 2012, 05:16 PM

We had spring cleaning today and i am building a pair of speakers parallel. i am quite exhausted. I tested the current sources. They work but one channel started to smoke when i cranked the voltage. More testing tomorrow, sorry guys.

MiiB · 30th April 2012, 05:25 PM

Don't. stress.....!!!!

Joachim Gerhard · 30th April 2012, 07:56 PM

What do you think LC ?
I can hand you the modules on the High End and then you can play around with them.
I am simply running out of time.

sonnya · 30th April 2012, 09:02 PM

Quote:

Originally Posted by Joachim Gerhard

What do you think LC ?
I can hand you the modules on the High End and then you can play around with them.
I am simply running out of time.

When you are on the excibition i Will have done the layout.

Joachim Gerhard · 1st May 2012, 02:23 AM

The vesion with or without the driver or both ?

Joachim Gerhard · 1st May 2012, 03:09 AM

OK, when i find the time i will make the moduls working. Problem is that i have a lot of guests after the High End so the next two weeks it may be hard to find time for DIY. Anyway, this is exiting.

Lazy Cat · 1st May 2012, 08:39 AM

Hi guys

A day off from the forum, so where did we stay.

Yes Gerhard, that modules looks great, very compact, just to mine taste hehe

Smoke you said, tiny little black thingy was black before anyway, smoken, no help for him anymore.

So there's obviously some mistake inside that module, plus smoken part to find. We'll use sniffy doggy style to find him, he certainly didn't have a shower in between. That's sorted

Second module stays a side, first one to repair. It's good that it will operate the same with or without outputs. CCS can be isolated and tested separately, for the inputs you have to measure each BJT diodes to check functionality plus correct position in the circuit.

But you already know all that, it's just that your time schedule is too tight to fit in, I know. Well if you don't find a solution before just bring them to High End and we'll discuss from there on.

Lazy Cat · 1st May 2012, 09:04 AM

Quote:

Originally Posted by sonnya

When you are on the excibition i Will have done the layout.

Make it small & nasty, little poison.

Joachim Gerhard · 1st May 2012, 10:01 AM

Today i found a little time so one more round of testing. It must be some really small bug because i am usually good with p-p and perfboard.

sonnya · 1st May 2012, 10:32 AM

ALF16P16W and ALF16N16W as output with 2SK216 and 2SJ79 as driver.

The ALF has the double gfs than ECX10n20 and ECX10p20 (1.4 - 4S against 0.7 - 2S)

What about a sense resistor in series with the source for setting the idle current. I think of the size of 0.05R!???

30th April 2012, 05:25 PM	#452
MiiB diyAudio Member Join Date: May 2005 Location: Denmark	Don't. stress.....!!!! __________________ http://www.linkedin.com/pub/michael-...esen/a/a55/544 http://www.raidho.dk/

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
simplest amplifier possible with BJT's?	rmgvs	Solid State	123	10th July 2008 03:05 AM
Symmetrical Phono Amplifier	seroxatmad	Solid State	3	6th August 2007 04:00 PM
Simplest class B Amplifier	PicancoNet	Solid State	42	8th June 2005 02:55 PM
Symmetrical amplifier conundrum	Kilentra	Solid State	22	31st January 2003 05:06 AM
Symmetrical 400W amplifier	Diogo	Solid State	30	28th October 2002 11:00 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

30th April 2012, 05:16 PM	#451
Joachim Gerhard diyAudio Member Join Date: Mar 2009	We had spring cleaning today and i am building a pair of speakers parallel. i am quite exhausted. I tested the current sources. They work but one channel started to smoke when i cranked the voltage. More testing tomorrow, sorry guys.

30th April 2012, 07:56 PM	#453
Joachim Gerhard diyAudio Member Join Date: Mar 2009	What do you think LC ? I can hand you the modules on the High End and then you can play around with them. I am simply running out of time.

1st May 2012, 02:23 AM	#455
Joachim Gerhard diyAudio Member Join Date: Mar 2009	The vesion with or without the driver or both ?

1st May 2012, 03:09 AM	#456
Joachim Gerhard diyAudio Member Join Date: Mar 2009	OK, when i find the time i will make the moduls working. Problem is that i have a lot of guests after the High End so the next two weeks it may be hard to find time for DIY. Anyway, this is exiting.

1st May 2012, 08:39 AM	#457
Lazy Cat diyAudio Member Join Date: Sep 2007	Hi guys A day off from the forum, so where did we stay. Yes Gerhard, that modules looks great, very compact, just to mine taste hehe Smoke you said, tiny little black thingy was black before anyway, smoken, no help for him anymore. So there's obviously some mistake inside that module, plus smoken part to find. We'll use sniffy doggy style to find him, he certainly didn't have a shower in between. That's sorted Second module stays a side, first one to repair. It's good that it will operate the same with or without outputs. CCS can be isolated and tested separately, for the inputs you have to measure each BJT diodes to check functionality plus correct position in the circuit. But you already know all that, it's just that your time schedule is too tight to fit in, I know. Well if you don't find a solution before just bring them to High End and we'll discuss from there on.

1st May 2012, 10:01 AM	#459
Joachim Gerhard diyAudio Member Join Date: Mar 2009	Today i found a little time so one more round of testing. It must be some really small bug because i am usually good with p-p and perfboard.

1st May 2012, 10:32 AM	#460
sonnya diyAudio Member Join Date: Oct 2001 Location: Denmark	ALF16P16W and ALF16N16W as output with 2SK216 and 2SJ79 as driver. The ALF has the double gfs than ECX10n20 and ECX10p20 (1.4 - 4S against 0.7 - 2S) What about a sense resistor in series with the source for setting the idle current. I think of the size of 0.05R!???