Help me please

Elegant · 9th July 2007, 09:52 AM

Dear all,
I have problem with my 300B power amplifier as belows:
- When i turn on power of amplifier, suddenly one of my speaker sounded big "pop" and it is reduced smaller after 10s.
- I have changed this 300B tube to opposite side and this problem appeared same as above.

Could you please tell me what is problem with my amplifier and how to solve this problem.

Thank & Regards

Elegant

Elegant · 10th July 2007, 04:09 AM

I am waiting for your consultancy.

Nanook · 10th July 2007, 05:29 AM

seems if it pops prior to getting to the correct level some 10 seconds later perhaps one of the signal caps isn't operating correctly.

I am not a tube expert by any means but it seems to me most times there is a time delay for either a proplem to occur or fix itself, a cap is the culprit

Elegant · 10th July 2007, 07:05 AM

How is about another suggestion?

tinitus · 10th July 2007, 10:13 AM

unstable DC ??

9th July 2007, 09:52 AM	#1
Elegant diyAudio Member Join Date: Sep 2006	Help me please Dear all, I have problem with my 300B power amplifier as belows: - When i turn on power of amplifier, suddenly one of my speaker sounded big "pop" and it is reduced smaller after 10s. - I have changed this 300B tube to opposite side and this problem appeared same as above. Could you please tell me what is problem with my amplifier and how to solve this problem. Thank & Regards Elegant

10th July 2007, 05:29 AM	#3
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	could it be signal caps? seems if it pops prior to getting to the correct level some 10 seconds later perhaps one of the signal caps isn't operating correctly. I am not a tube expert by any means but it seems to me most times there is a time delay for either a proplem to occur or fix itself, a cap is the culprit __________________ stew ☮ -"A sane man in an insane world appears insane."

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10th July 2007, 04:09 AM	#2
Elegant diyAudio Member Join Date: Sep 2006	I am waiting for your consultancy.

10th July 2007, 07:05 AM	#4
Elegant diyAudio Member Join Date: Sep 2006	How is about another suggestion?

10th July 2007, 10:13 AM	#5
tinitus diyAudio Moderator Join Date: Nov 2005	unstable DC ??

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