filter choke voltage rating

nhuwar · 27th October 2008, 11:36 PM

I've heard that you can put you power supply filter choke on the grounded side of your supply so you don't need a high insulation rating.

My question is will this work for audio, I read it in an ARRL handbook. I don't see any reason why it wouldn't but I wanted to ask first.

Thanks,

Nick

SY · 28th October 2008, 12:13 AM

Sure, you can put the whole filter there.

nhuwar · 28th October 2008, 12:17 AM

So there won't be any adverse sonic effects?

Nick

gingertube · 28th October 2008, 02:45 AM

No there won't be any sonic effects. Just make sure the 0V connection is AFTER the choke. This often done in Single Ended Triode Amps using tubes like an 845 which sounds best with anode voltages up around 1100 to 1200 volts. In fact nearly every one of these I've seen had the choke in the "ground" side of the power supply. it is simply safer there rather than sitting with 1200 Volts on it.
Cheers,
Ian

27th October 2008, 11:36 PM	#1
nhuwar diyAudio Member Join Date: Jan 2007 Location: Tomball Texas	filter choke voltage rating I've heard that you can put you power supply filter choke on the grounded side of your supply so you don't need a high insulation rating. My question is will this work for audio, I read it in an ARRL handbook. I don't see any reason why it wouldn't but I wanted to ask first. Thanks, Nick

28th October 2008, 12:13 AM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	Sure, you can put the whole filter there. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

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28th October 2008, 12:17 AM	#3
nhuwar diyAudio Member Join Date: Jan 2007 Location: Tomball Texas	So there won't be any adverse sonic effects? Nick

28th October 2008, 02:45 AM	#4
gingertube diyAudio Member Join Date: Oct 2004 Location: Adelaide South Oz	No there won't be any sonic effects. Just make sure the 0V connection is AFTER the choke. This often done in Single Ended Triode Amps using tubes like an 845 which sounds best with anode voltages up around 1100 to 1200 volts. In fact nearly every one of these I've seen had the choke in the "ground" side of the power supply. it is simply safer there rather than sitting with 1200 Volts on it. Cheers, Ian

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