fed up with bosoz - Page 9

mpmarino · 8th January 2006, 04:34 AM

hey cowanrg,

do you have those back to back zeners at input to ground in the circuit? If so, pull 'em out temporarily...they could be the problem. Just be careful to ground any input cable prior to hooking it up so u don't fry your fets.

marc

edit: I am talking about the pre circuit..NOT the PS.

cowanrg · 8th January 2006, 07:22 AM

a bit earlier in this thread a member (magura maybe?) suggested a leaky zener or something. it could be that. i never bothered checking it out because i put the project on the shelf and didnt mess with it.

but, its worth a shot. its strange that it would happen on both channels though. ill remove those and see what happens.

poobah · 8th January 2006, 07:30 AM

It would be doubtful that you would wind up with bad zeners in both channels... We have been told that to one degree or another; both channels have the same (bad) performance.

cowanrg · 8th January 2006, 07:33 AM

true. but lets say i hooked it up to something naughty at one time and it blew the zeners. it would have done so for both channels correct?

poobah · 8th January 2006, 07:43 AM

It would take ALOT to blow those zeners...

mpmarino · 8th January 2006, 01:45 PM

Your right, it would take a lot. Maybe they could have been overheated or bad out of the box? Anyway, regardless... when they go bad they make noise..it's something to try...a variable

Variac · 10th January 2006, 12:14 AM

SerenghetiPlains:

Its considered a serious violation of the forum rules to publish private e-mail. You could easily pointed out that you had received a mistakenly addressed e-mail without publishing it. Another violation will have consequences.

Variac
DIY Moderator

serengetiplains · 10th January 2006, 12:36 AM

Variac, can you kindly point me to where the rule is posted?

cowanrg · 10th January 2006, 12:57 AM

i know im not a moderator, but as the starter of this thread, any more "personal" stuff should be dealt wtih privately, as in not in this thread.

Variac · 10th January 2006, 01:10 AM

Tom,

The rule is not posted. Not posting private emails is basic courtesy.
I assumed that you were not aware of this and that is why I mentioned it and did nothing other than move the post. This will help alert people that we don't allow this.

In the past people who have done so knowing that it is not permitted have gotten bin time.

I think cowanrg has a point- let's focus on his possessed preamp and not get offf topic.

8th January 2006, 04:34 AM	#81
mpmarino diyAudio Member Join Date: Jun 2004 Location: Crunchville, where I don't fit in.	hey cowanrg, do you have those back to back zeners at input to ground in the circuit? If so, pull 'em out temporarily...they could be the problem. Just be careful to ground any input cable prior to hooking it up so u don't fry your fets. marc edit: I am talking about the pre circuit..NOT the PS. __________________ Crazy Yankee.

8th January 2006, 01:45 PM	#86
mpmarino diyAudio Member Join Date: Jun 2004 Location: Crunchville, where I don't fit in.	Your right, it would take a lot. Maybe they could have been overheated or bad out of the box? Anyway, regardless... when they go bad they make noise..it's something to try...a variable __________________ Crazy Yankee.

10th January 2006, 12:14 AM	#87
Variac diyAudio Editor Join Date: Dec 2001 Location: San Francisco, USA	SerenghetiPlains: Its considered a serious violation of the forum rules to publish private e-mail. You could easily pointed out that you had received a mistakenly addressed e-mail without publishing it. Another violation will have consequences. Variac DIY Moderator __________________ Burning Amp Festival Sunday, October 28th, 2012 in S.F. We need Volunteers & sign-up's for what you're bringing!

10th January 2006, 12:36 AM	#88
serengetiplains diyAudio Member Join Date: Feb 2004 Location: Canada	Variac, can you kindly point me to where the rule is posted? __________________ Tom

10th January 2006, 01:10 AM	#90
Variac diyAudio Editor Join Date: Dec 2001 Location: San Francisco, USA	Tom, The rule is not posted. Not posting private emails is basic courtesy. I assumed that you were not aware of this and that is why I mentioned it and did nothing other than move the post. This will help alert people that we don't allow this. In the past people who have done so knowing that it is not permitted have gotten bin time. I think cowanrg has a point- let's focus on his possessed preamp and not get offf topic. __________________ Burning Amp Festival Sunday, October 28th, 2012 in S.F. We need Volunteers & sign-up's for what you're bringing!


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8th January 2006, 07:22 AM	#82
cowanrg diyAudio Member Join Date: Apr 2002 Location: Lafayette, CO	a bit earlier in this thread a member (magura maybe?) suggested a leaky zener or something. it could be that. i never bothered checking it out because i put the project on the shelf and didnt mess with it. but, its worth a shot. its strange that it would happen on both channels though. ill remove those and see what happens.

8th January 2006, 07:30 AM	#83
poobah diyAudio Member Join Date: Nov 2005	It would be doubtful that you would wind up with bad zeners in both channels... We have been told that to one degree or another; both channels have the same (bad) performance.

8th January 2006, 07:33 AM	#84
cowanrg diyAudio Member Join Date: Apr 2002 Location: Lafayette, CO	true. but lets say i hooked it up to something naughty at one time and it blew the zeners. it would have done so for both channels correct?

8th January 2006, 07:43 AM	#85
poobah diyAudio Member Join Date: Nov 2005	It would take ALOT to blow those zeners...

10th January 2006, 12:57 AM	#89
cowanrg diyAudio Member Join Date: Apr 2002 Location: Lafayette, CO	i know im not a moderator, but as the starter of this thread, any more "personal" stuff should be dealt wtih privately, as in not in this thread.

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