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8th April 2011, 05:20 PM
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#31 |
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diyAudio Member
Join Date: Jan 2005
Location: Lokeren, Belgium
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Oil burner ignition trafos, really?? I never would've thought of that... I like the idea!!
I wonder, do they have a magnetic shunt like neon sign transformers (for limiting the short-circuit current)...? I guess not, given their purpose. Good! Do they get hot? Kenneth
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Never send a human to do a machine's job. --Agent Smith |
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8th April 2011, 08:51 PM
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#32 |
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diyAudio Member
Join Date: Dec 2004
Location: Staffanstorp
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I do not think there is any shunt, and as they are marked "Intermitent - use only 30% off 3min cycle" - I would guess not!
I've only tested them, so I do not know if they run hot - will do some more tests during this weekend! Roger
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The probability of someone watching you is proportional to the stupidity of your action. - A. Kindsvater |
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8th April 2011, 10:56 PM
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#33 | |
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diyAudio Member
Join Date: Jun 2005
Location: Fort Worth, Texas
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Quote:
1) the heaviest/oldest ones are not current limited. 2) but, some models are current limited with a magnetic shunt, (20mA - 40mA usually). 3) the most recent/cheapest models are solid state(transformer replacements) and are not usable for ESL step-up transformers. My guess would be if they say "intermittent use" they are probable not current limited. But since you will only be applying at most 30Vrms - 40Vrms to the 220V winding you shouldn't run into any overheating problems. With their high leakage inductance and primary winding resistance they should provide a nicely damped low pass filter for bass panels without needing any additional parts 
Last edited by bolserst; 8th April 2011 at 11:24 PM. |
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9th April 2011, 06:15 PM
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#34 | |
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diyAudio Member
Join Date: Jan 2005
Location: Lokeren, Belgium
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Thanks for the information Bolserst.
Quote:
Kenneth
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Never send a human to do a machine's job. --Agent Smith |
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10th April 2011, 07:26 AM
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#35 |
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diyAudio Member
Join Date: Feb 2008
Location: Jackson,michigan
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Ya know? I did touch on the Idea of using an MOT last year. jer
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11th April 2011, 12:09 AM
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#36 |
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diyAudio Member
Join Date: Feb 2008
Location: Jackson,michigan
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Also MOT's generaly only have a stepup ratio of 1:20 to 1:25.
And of all of the ones that I have tore apart I yet to have two Identical transformers. Never the less it is still a good Idea. jer |
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