| Author: | automap68 (registered user: 127 posts ) |
| Date: | Tue, Feb 07th, 2012 @ 15:47 ( . ) |
On 02/07/2012 @ 15:35, spud wrote :
Are you in some kind of Lab or something because I don't see testing with a variac has any purpose - I own one, but I don't see the point. Besides, if your running it at 100v, I don't think your going to get 100% of the output either. Are you bringing the voltage up slowly from 0? But after you're sure there's nothing seriously wrong, do you run it at 100v? Then you run it at 100v and calculate if you are ok with your voltages (within spec minus 5%)? Do you then run it at full voltage? Why bother with the 100v? After you run it at full voltage do you measure what everything is - as a verification that your calculations were correct? : : Last question, what is the variac really supposed to do? If your running it at 100v or 120v I don't see much difference as far as frying something. I guess I don't see the advantage over something like a Light Bulb Limiter (LBL) - I doubt you could turn it off fast enough if there was something really wrong while the LBL would prevent damage by glowing brightly then burning out before parts of the amp. : : Jim -- Yes Jim in the lab The fact of the matter is the variac doesn't really matter Any professional lab uses a variac for testing But just for comparison and so we can get off the variac subject U have also teste on the wall voltage which Is 121 All voltages are spot on And Like I said sounds nice. Just trying to figure out why it's only at 4 wards And just to confirm The 4 watts was taken at 121.8 to be exact In case you didn't read the post above. I'm an engineer student So j have access I several labs and some very awesome gear |
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