DIYAPASON-L Digest #31 - Tuesday, February 8, 2000
 
Re: [Residence Organs]  One more time: the CORRECT  rectifier  connection
  by "Eric Sagmuller" <ess4@psu.edu>
 

(back) Subject: Re: [Residence Organs] One more time: the CORRECT rectifier connections are.... From: "Eric Sagmuller" <ess4@psu.edu> Date: Tue, 8 Feb 2000 08:23:02 -0500   Hi All,   One thing that I don't think was mentioned when checking for the windings with an ohm meter is that one can't determine the proper phasing of the windings with that. Once one finds the two windings, parallels them, connect a light bulb of I'd say 100-200 watts in series with the transformer and the line with the power supply unloaded. If the windings are phased right then the bulb should glow dimly. If the windings are out of phase then the bulb will glow about as bright as if connected right to the line. The line fuse in the power supply may blow without the lamp but = I wouldn't depend on this. If the winding are phased wrong and there is not either a fuse and or such bulb in line the transformer will go up in smoke. If the transformer is = big enough then the house circuit breaker may trip but I wouldn't depend on this either.   At this point though Arp has supplied the correct wiring for the unit as supplied by the manufacturer. My above note applies mainly to unknown situations but is not a bad practice if in question. The bulb size specified is for power supplies that draw at least 2 amps.   Eric