what should I do with this tranny???

mylesmf · 7th June 2005, 08:01 AM

Hi Everyone,

I have recently obtained (for free, thank you very much) a Gardners power transformer with the following specs;

155v, 45v, 100-0-870v, 6.3v, 13.5-0-13.5v, 6.3v, 6.3v

I am a little uncertain as to what I would build with it though, I would like if possible to power two channels. What are my options as to configuring the power supply and what would be the most appropriate use of a tranny like this. Anyone have any ideas I'd love to hear them.

Thanks,

Myles

Frank Berry · 7th June 2005, 08:16 AM

It's impossible to give advice until we know how much current the secondary windings can deliver. Any idea?

Geek · 7th June 2005, 10:08 AM

If you don't know the current, the physical dimensions of the transformer would be handy in guessing the VA rating at least.

EC8010 · 7th June 2005, 12:47 PM

Your transformer looks as though it came out of an oscilloscope. If that guess is correct, then the 870V winding will only be good for a milliamp or two, and the 100V winding for about 10mA or so.

mylesmf · 8th June 2005, 02:10 PM

Unfortunately the transformer is in London and I am in Barcelona so I can't check secondaries right now. If it's any help the thing weighs a little over 2kg (5lbs), stands about 8 ins high by 5 wide.

If it did in fact come out of an oscilliscope should I save myself the shipping and politely reject it?

Thansk for the help

Myles

EC8010 · 8th June 2005, 02:37 PM

If it's that size, then it's probably useful for something. It would have to be a very big oscilloscope...

Geek · 8th June 2005, 11:42 PM

Never reject good iron....

1) You'll figure out a use for it five minutes after saying "no".
2) That big and if out of a scope, imagine the filaments you could power!
3) You can rewind it.
4) Trading power!

7th June 2005, 08:01 AM	#1
mylesmf diyAudio Member Join Date: Jun 2005 Location: Barcelona	what should I do with this tranny??? Hi Everyone, I have recently obtained (for free, thank you very much) a Gardners power transformer with the following specs; 155v, 45v, 100-0-870v, 6.3v, 13.5-0-13.5v, 6.3v, 6.3v I am a little uncertain as to what I would build with it though, I would like if possible to power two channels. What are my options as to configuring the power supply and what would be the most appropriate use of a tranny like this. Anyone have any ideas I'd love to hear them. Thanks, Myles

7th June 2005, 08:16 AM	#2
Frank Berry diyAudio Member Join Date: Sep 2003 Location: Midland, Michigan	It's impossible to give advice until we know how much current the secondary windings can deliver. Any idea? __________________ Frank

7th June 2005, 12:47 PM	#4
EC8010 diyAudio Moderator Emeritus Join Date: Jan 2003 Location: Near London. UK	Your transformer looks as though it came out of an oscilloscope. If that guess is correct, then the 870V winding will only be good for a milliamp or two, and the 100V winding for about 10mA or so. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

8th June 2005, 02:10 PM	#5
mylesmf diyAudio Member Join Date: Jun 2005 Location: Barcelona	the value of free trannys Unfortunately the transformer is in London and I am in Barcelona so I can't check secondaries right now. If it's any help the thing weighs a little over 2kg (5lbs), stands about 8 ins high by 5 wide. If it did in fact come out of an oscilliscope should I save myself the shipping and politely reject it? Thansk for the help Myles

8th June 2005, 02:37 PM	#6
EC8010 diyAudio Moderator Emeritus Join Date: Jan 2003 Location: Near London. UK	If it's that size, then it's probably useful for something. It would have to be a very big oscilloscope... __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...


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7th June 2005, 10:08 AM	#3
Geek diyAudio Member Join Date: Sep 2004	If you don't know the current, the physical dimensions of the transformer would be handy in guessing the VA rating at least.

8th June 2005, 11:42 PM	#7
Geek diyAudio Member Join Date: Sep 2004	Never reject good iron.... 1) You'll figure out a use for it five minutes after saying "no". 2) That big and if out of a scope, imagine the filaments you could power! 3) You can rewind it. 4) Trading power!

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