"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- On Sun, 27 Jan 2008 18:32:35 -0500, Donley wrote:
>I have a Shape Magnetronics Inc (Addison, IL) regulating transformer, catalog >number W2136, that is supposed to regulate output voltage to 120 volts with >input varying between 102 and 130 volts AC. I don't know enough to make it >work. It sounds like you have a ferroresonant transformer. They do tend to hum (sometimes quite loudly) in operation. The output may not be a pure sinewave. I would not be surprised to find the primary and seconday tied together on the neutral side of the line. >1. Can anyone recommend a tutorial source for schematics and operating theory >on regulating transformers? http://en.wikipedia.org/wiki/Voltage_regulator http://www.allaboutcircuits.com/vol_2/chpt_9/6.html 73 -Jim -- Ham Radio NU0C TR7/RV7, TR6/RV6, T4XC/R4C, L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
