|Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......|
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
||Thread Tools||Search this Thread|
|16th December 2007, 05:58 PM||#1|
Join Date: Jan 2002
Location: Tyrone Ga. U.S.A.
Transformers as chokes
Ok! I know this has been talked about before and the answer
was no but I decided to try this anyway. My results were different.
Using a 140v ac source and a choke input filter using the .7h
inductance of a 50va power transformer I measuerd 202vdc
without a load. Then with a 500 0hm load I measured 125vdv.
A 250 ohm load made it drop to 118v. The 140v ac transformer
has a source impedience of ~10 ohms and the dc resistance of
the transformer primary used as a choke was 13.8 ohms.
The expected result using 140v ac would be 140x.88 = 123.2v
- a couple of volts voltage drop across the diodes ect.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Chokes next to output transformers?||Rob11966||Tubes / Valves||3||7th January 2009 09:18 PM|
|where to buy parts (transformers and chokes)||soundbadger||Tubes / Valves||9||30th October 2007 09:08 PM|
|Useful Supplier of Transformers, Chokes, Chassis and other stuff||poynton||Tubes / Valves||0||2nd February 2007 11:48 AM|
|Plate chokes & Power chokes||JC951t||Tubes / Valves||3||19th October 2006 04:18 PM|
|Rf Chokes - Sos||b_online||Parts||0||15th May 2003 12:27 AM|
|New To Site?||Need Help?|