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110/220V Taps (Long)

72.17.180.158

Hi, I have a Metaxas Preamp that I am sending to Paris and need to tap the transformer for 220V. It has a seperate power supply and when I opened it there are two bundles of wires for the primary each consisting of a Black, Brown and Orange wire. As it is wired now for 110v it uses the Black and Brown on one bundle. When I measured the resistance it showed 7.6 Ohms. I was told that the 220v taps should measure almost double as they will be in series. I measured the Black and Brown from the other bundle and it also measured 7.6 Ohms. The Black and the Orange from the non used bundle measured 9.4 Ohms, the Brown and Orange on this bundle measured 2.1 Ohms. Would the 9.4 Ohm measurement be the 220v tap? I have a Variac but it only goes to 140v. Is there anything else I can do to verify I have the right taps. Thanks in advance.
Ron

Follow Ups:

Only sure way is to contact the manufacture. Or get a hold of a schematic - jea48 20:57:41 10/23/10 (0)
RE: 110/220V Taps (Long) - Tweekeng 10:48:38 10/23/10 (2)
- RE: 110/220V Taps (Long) - Ron944 11:28:11 10/23/10 (1)
  - Yes. I would assume then it is correct. but you need to check it BEFORE you plug it into 220volts. Just sayin' - Elizabeth 13:34:29 05/21/11 (0)

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