Why Transformers?

guitargully · 15th April 2004, 11:35 PM

Alright.. i know this is probablly a dumb/weird question, but why do people use tramsformers instead of like... whatever they are.. transistors, diodes, chips.. all those things that multiply or divide voltages.. is it because of isolation of PS noise? Just wondering.. it seems like using SS stuff would be cheaper and lighter. Thanks

Sch3mat1c · 16th April 2004, 02:43 AM

You mean interstage transformers? Oh, there's a whole religion around those things, just as there is about triodes, directly-heated and single-ended circuits in particular, and so on...

Tim

RobPhill33 · 16th April 2004, 04:58 AM

Transformers are very efficient and they physically isolate the power supply from the mains. Meaning that the secondary wires of a transformer are not connected to the primary wires. The voltage on the secondary winding is induced from the electromagnetic field produced by the primay winding. Also, transformer does not just change the voltage, but also transforms the current. I hope this was helpful and not redundent.

guitargully · 16th April 2004, 06:19 AM

gotcha

.. thanks

15th April 2004, 11:35 PM	#1
guitargully diyAudio Member Join Date: Nov 2003 Location: Detriot, MI	Why Transformers? Alright.. i know this is probablly a dumb/weird question, but why do people use tramsformers instead of like... whatever they are.. transistors, diodes, chips.. all those things that multiply or divide voltages.. is it because of isolation of PS noise? Just wondering.. it seems like using SS stuff would be cheaper and lighter. Thanks __________________ say what? .. be careful with your ears.

16th April 2004, 02:43 AM	#2
Sch3mat1c diyAudio Member Join Date: Jan 2003 Location: Milwaukee, WI	You mean interstage transformers? Oh, there's a whole religion around those things, just as there is about triodes, directly-heated and single-ended circuits in particular, and so on... Tim __________________ See my Electronics webpage -- the home of Vacuum Tube Drag Racing. The key to being a successful Audiophile: "I reject your reality and substitute my own!"

16th April 2004, 06:19 AM	#4
guitargully diyAudio Member Join Date: Nov 2003 Location: Detriot, MI	gotcha.. thanks __________________ say what? .. be careful with your ears.

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16th April 2004, 04:58 AM	#3
RobPhill33 diyAudio Member Join Date: Sep 2002 Location: Milton Ontario	Transformers are very efficient and they physically isolate the power supply from the mains. Meaning that the secondary wires of a transformer are not connected to the primary wires. The voltage on the secondary winding is induced from the electromagnetic field produced by the primay winding. Also, transformer does not just change the voltage, but also transforms the current. I hope this was helpful and not redundent.

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