Removing LEDs from chinese amp

woodturner-fran · 1st December 2006, 09:45 PM

Hi All,

I have a little chinese headphone amp, uses oddball chinese tubes for driver and power tubes. Heres the thing that annoys me though - there is an LED (blue, ultrabright) under each of the drivers. I know whay they did it - cosmetics! the driver tubes are fairly heavily silvered and don't really glow so the LEDs are there to give it a bit of bling.

I would dearly like to remove the things! Could there be any other reason for them being there? Would it be ok just to go in there and cut them out?

Sound is pretty good from this amp, so I just wanted to ask before I do something that would harm it or the headphones!

thanks in advance,
Fran

pinkmouse · 1st December 2006, 11:02 PM

They may be part of the biasing circuit. If you don't like them, just paint them black.

woodturner-fran · 2nd December 2006, 09:35 AM

D'oh!!

Of course thats the easy way out! What I think I'll do is stick a small piece of heatshrink in there for now - that way its easily removable.

Many thanks,

Fran

Nordic · 2nd December 2006, 12:24 PM

If an LED is powerd on in a heatshrink tube, is there any light?

woodturner-fran · 2nd December 2006, 03:57 PM

well I hope not. I just want a quick and easy fix to stop the blue glare!

fran

1st December 2006, 09:45 PM	#1
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	Removing LEDs from chinese amp Hi All, I have a little chinese headphone amp, uses oddball chinese tubes for driver and power tubes. Heres the thing that annoys me though - there is an LED (blue, ultrabright) under each of the drivers. I know whay they did it - cosmetics! the driver tubes are fairly heavily silvered and don't really glow so the LEDs are there to give it a bit of bling. I would dearly like to remove the things! Could there be any other reason for them being there? Would it be ok just to go in there and cut them out? Sound is pretty good from this amp, so I just wanted to ask before I do something that would harm it or the headphones! thanks in advance, Fran

1st December 2006, 11:02 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	They may be part of the biasing circuit. If you don't like them, just paint them black. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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2nd December 2006, 09:35 AM	#3
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	D'oh!! Of course thats the easy way out! What I think I'll do is stick a small piece of heatshrink in there for now - that way its easily removable. Many thanks, Fran

2nd December 2006, 12:24 PM	#4
Nordic diyAudio Member Join Date: Sep 2005	If an LED is powerd on in a heatshrink tube, is there any light?

2nd December 2006, 03:57 PM	#5
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	well I hope not. I just want a quick and easy fix to stop the blue glare! fran