| alizawi |
anyone know where i can get a single 8 ohm speaker to test one channel of my lm3875 amp? All the ones i looked at are too expensive, I just need something for testing/demonstration purposes.
Oh by the way, quick question about my transformer, mine has 4 primary leads..do I tie the 0's together and the 115's together?
thanks
Ali B. |
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| leadbelly |
| quote: | Originally posted by alizawi
anyone know where i can get a single 8 ohm speaker to test one channel of my lm3875 amp? All the ones i looked at are too expensive, I just need something for testing/demonstration purposes. |
Personally, I wouldn't even use a new $20 driver to test an amp I had just put together. I would just use something old I had on hand. If you don't have anything like that, just vist your closest thrift store. |
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| alizawi |
| thats what I tried to do, but none had the right speakers......gotta keep looking i guess |
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| Nordic |
Man, even a cheap car speaker will do, the one I use for testing is so old, its got tears in, its still good enough to tell me the amp can run for an hour or two, without being dangerous.
I have even seen newly completed things work for a while and then go nuclear... because I forgot to put a heatsink back...
A quick test and swap over to the big speakers would have been a dissaster. |
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| alizawi |
| anyone got comments about my transformer question? |
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| leadbelly |
| quote: | Originally posted by alizawi
Oh by the way, quick question about my transformer, mine has 4 primary leads..do I tie the 0's together and the 115's together?
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Yes, if they are indeed factory labelled as such. |
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| alizawi |
| yeah thats how they're labeled |
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