lighting transformers 12V

Brit01 · 24th August 2010, 06:35 PM

Can these cheap 12v lighting units be used for heater filaments?
20-50watts at 12v apparently.

Or will they create huge amounts of noise because of the high frequency?

singh santa · 25th August 2010, 03:22 AM

Hello,
Yes,I've used that for 6080 filament with very good result.
No,no noise at all.Mine amp's b+ was SS rectify form 120v isolate transformer.
More info available if you wanted.
Cheers!
SS

trondareo · 25th August 2010, 07:51 AM

I have successfully been using battery charger transformers for a SET amp for several years, now, both as filament and B+ voltage (by reversing the transformer 12 to 230v)
Fred Nachbaur also recommended using wall-wart transformers in his designs.
Just make sure they are isolating transformers.

24th August 2010, 06:35 PM	#1
Brit01 diyAudio Member Join Date: Jul 2008	lighting transformers 12V Can these cheap 12v lighting units be used for heater filaments? 20-50watts at 12v apparently. Or will they create huge amounts of noise because of the high frequency?

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25th August 2010, 03:22 AM	#2
singh santa diyAudio Member Join Date: Mar 2009	Hello, Yes,I've used that for 6080 filament with very good result. No,no noise at all.Mine amp's b+ was SS rectify form 120v isolate transformer. More info available if you wanted. Cheers! SS

25th August 2010, 07:51 AM	#3
trondareo diyAudio Member Join Date: Feb 2009 Location: Trondheim	I have successfully been using battery charger transformers for a SET amp for several years, now, both as filament and B+ voltage (by reversing the transformer 12 to 230v) Fred Nachbaur also recommended using wall-wart transformers in his designs. Just make sure they are isolating transformers.

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