1kVA Isolation Transformer Beautiful

udailey · 17th February 2009, 05:59 PM

Check this out on EBAY!
http://cgi.ebay.com/ws/eBayISAPI.dll...m=330308625202
This deal is FANTASTIC.
Its a 120VAC to 115VAC toroid. Beautiful from the pics. Amperage is 8.25 and VA is 948.75 - his words.
Really? Could you ask for a better Isolation Transformer!
He wants $20 each and about 15 shipping in the US. Transformers like this at ANTEK sell for over $100.
Bump this article if you read it since no one is going to respond to this post so it doesnt get lost while his supplies last!!
Uriah

HaLo6 · 17th February 2009, 06:57 PM

I am new at this (like less than a month DIY) ... would you use this to decouple your house mains? so in a sense this is a filter?

aznshadoboy77 · 17th February 2009, 07:00 PM

Sorry, new at transformers.

Could you wire the primaries in series so that there's 60 VAC across each pair of primaries (tie white and gray together) and 57.5 across the output?

Then from that wire use center tap to do 28-0-28 VAC?

Thank!
Justin

udailey · 17th February 2009, 07:03 PM

You are on the right track. There is one in my power conditioner.
Check this out for starters
http://en.wikipedia.org/wiki/Isolation_transformer

udailey · 17th February 2009, 07:07 PM

http://repairfaq.ece.drexel.edu/sam/smpsfaq.htm#smpsihw
Great page to start with. Read about Isolation Transformers. If you are using this for your amp then I think you will get by with one of these because the isolating will happen between this transformer and your amps power supply transformer. But I dont think you would want to take just one of these and feed your TV with it. I think you would buy two and put them back to back THEN feed your TV or anything else with it for that matter.
Uriah

udailey · 17th February 2009, 07:10 PM

Quote:

Originally posted by aznshadoboy77
Sorry, new at transformers.

Could you wire the primaries in series so that there's 60 VAC across each pair of primaries (tie white and gray together) and 57.5 across the output?

Then from that wire use center tap to do 28-0-28 VAC?

Thank!
Justin

I have no idea. Sorry.

Not a transformer expert just noticed this very good deal and thought you all might want to see it.
Uriah

d to the g · 17th February 2009, 07:37 PM

I would be on top of this if I hadn't just won an auction for a powervar for $12.

HaLo6 · 17th February 2009, 07:59 PM

cool I just bought one .... not sure what i'll use it for but I got one

.... I am in the parts collecting phase on the hobby

... would you use this on an amp build? would it really serve a purpose ? and that and two trafos in the same case... it would be a huge (and heavy) case.

d to the g · 17th February 2009, 08:33 PM

This trafo would best be served for building a nice isolation system for your sources and preamp. Would also be perfect for the diy 'geddon turntable supply.

HaLo6 · 17th February 2009, 09:42 PM

Is there any schematics for a power conditioner? I have a whole bunch of hospital grade 20A plugs, plenty of wire... etc...

17th February 2009, 05:59 PM	#1
udailey Passive Aggressive diyAudio Member Join Date: Mar 2008	1kVA Isolation Transformer Beautiful Check this out on EBAY! http://cgi.ebay.com/ws/eBayISAPI.dll...m=330308625202 This deal is FANTASTIC. Its a 120VAC to 115VAC toroid. Beautiful from the pics. Amperage is 8.25 and VA is 948.75 - his words. Really? Could you ask for a better Isolation Transformer! He wants $20 each and about 15 shipping in the US. Transformers like this at ANTEK sell for over $100. Bump this article if you read it since no one is going to respond to this post so it doesnt get lost while his supplies last!! Uriah __________________ You can purchase LDRs anytime to build a standard LDR attenuator or to build my new LDR Attenuator "A Lighter Note". Email me. diyldr@gmail.com

17th February 2009, 07:03 PM	#4
udailey Passive Aggressive diyAudio Member Join Date: Mar 2008	You are on the right track. There is one in my power conditioner. Check this out for starters http://en.wikipedia.org/wiki/Isolation_transformer __________________ You can purchase LDRs anytime to build a standard LDR attenuator or to build my new LDR Attenuator "A Lighter Note". Email me. diyldr@gmail.com

17th February 2009, 07:07 PM	#5
udailey Passive Aggressive diyAudio Member Join Date: Mar 2008	http://repairfaq.ece.drexel.edu/sam/smpsfaq.htm#smpsihw Great page to start with. Read about Isolation Transformers. If you are using this for your amp then I think you will get by with one of these because the isolating will happen between this transformer and your amps power supply transformer. But I dont think you would want to take just one of these and feed your TV with it. I think you would buy two and put them back to back THEN feed your TV or anything else with it for that matter. Uriah __________________ You can purchase LDRs anytime to build a standard LDR attenuator or to build my new LDR Attenuator "A Lighter Note". Email me. diyldr@gmail.com

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
65 + 65VAC 1kVA Toroidal Transformer	gengis	Group Buys	17	16th July 2007 08:34 AM
transformer isolation?	zlast	Everything Else	1	19th June 2006 10:33 AM
Looking for 230V >1KVA variac and 230V-230V mains isolation transformer offers	Eva	Swap Meet	1	28th July 2005 03:00 PM
New Plitron 1kVA Transformer	roddyama	Swap Meet	3	6th March 2003 09:46 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

17th February 2009, 06:57 PM	#2
HaLo6 diyAudio Member Join Date: Dec 2008	I am new at this (like less than a month DIY) ... would you use this to decouple your house mains? so in a sense this is a filter?

17th February 2009, 07:00 PM	#3
aznshadoboy77 diyAudio Member Join Date: Mar 2007	Sorry, new at transformers. Could you wire the primaries in series so that there's 60 VAC across each pair of primaries (tie white and gray together) and 57.5 across the output? Then from that wire use center tap to do 28-0-28 VAC? Thank! Justin

17th February 2009, 07:37 PM	#7
d to the g diyAudio Member Join Date: Aug 2006 Location: minimalopolis	I would be on top of this if I hadn't just won an auction for a powervar for $12.

17th February 2009, 07:59 PM	#8
HaLo6 diyAudio Member Join Date: Dec 2008	cool I just bought one .... not sure what i'll use it for but I got one .... I am in the parts collecting phase on the hobby ... would you use this on an amp build? would it really serve a purpose ? and that and two trafos in the same case... it would be a huge (and heavy) case.

17th February 2009, 08:33 PM	#9
d to the g diyAudio Member Join Date: Aug 2006 Location: minimalopolis	This trafo would best be served for building a nice isolation system for your sources and preamp. Would also be perfect for the diy 'geddon turntable supply.

17th February 2009, 09:42 PM	#10
HaLo6 diyAudio Member Join Date: Dec 2008	Is there any schematics for a power conditioner? I have a whole bunch of hospital grade 20A plugs, plenty of wire... etc...

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read