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Old 5th April 2010, 02:39 AM   #11
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LOL, 20LBs? Surely you are joking. I have whole gain clones that don't weigh that much. If it really is 20Lbs then you could probably power about 5 of those amps. You might want to save it for a Home Theater project. It's great for testing too. It will be quite hard for the normal GC to drag the voltage down on that one.

Honestly, I would try to find a 150-200VA transformer in salvage or otherwise and use that for the permanent install. Seems like a waste otherwise. At least you have room to grow.
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Old 5th April 2010, 06:37 AM   #12
Elvee is online now Elvee  Belgium
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Have a look at this thread:
Trafo with unknown power rating
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Old 5th April 2010, 11:11 PM   #13
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Originally Posted by Rembrant View Post
LOL, 20LBs? Surely you are joking. I have whole gain clones that don't weigh that much. If it really is 20Lbs then you could probably power about 5 of those amps. You might want to save it for a Home Theater project. It's great for testing too. It will be quite hard for the normal GC to drag the voltage down on that one.

Honestly, I would try to find a 150-200VA transformer in salvage or otherwise and use that for the permanent install. Seems like a waste otherwise. At least you have room to grow.
Yes, you are right. I weighed myself today without the transformer in hand, weighed 174 lbs. Then I grabbed the transformer and reweighed myself - 190 lbs. So it weighs 16 lbs, don't know where I got 20 lbs from.

Funny you mention, but I am actually planning a home theater project. But my point wasn't really whether or not it was enough for a gainclone, I was wondering if there was any reliable method to figure the max avg. available power of the trafo, since I have 2 other ones that I need to measure as well. Looks like from reading the other posts here that it is mostly guesswork, kinda bummer. Here's a pic of mine from the ebay auction
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Old 6th April 2010, 03:59 AM   #14
AJT is offline AJT  Philippines
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if you are using that traffo to power up you gainclones you have nothing to worry about, you have it on hand, use it....that's good for a t least 5 gainclones, maybe more...
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Old 6th April 2010, 05:53 PM   #15
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As everyone is saying. The best bet is to measure the iron core and compare it with others at Farnell or RS Components. Transformers come in standard sizes so you should find it fairly easy to compare its dimensions with known values.
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Old 7th April 2010, 09:57 AM   #16
AndrewT is offline AndrewT  Scotland
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Originally Posted by caxxxxxx View Post
... is about 3.75 Inches tall and 5.75 inches in diameter, and is a toroid. ............. it weighs 16 lbs,
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Originally Posted by Andy5112405 View Post
to measure the iron core and compare it with others at Farnell or RS Components. Transformers come in standard sizes so you should find it fairly easy to compare its dimensions with known values.
this is very tall relative to diameter toroid not normal toroid.
It is a special not a standard.
I suspect it is well over 1kVA, which usually weigh 6.5kg to 7kg (14.7lbs to 15.4lbs) possibly 1.2kVA to 1.5kVA.
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Old 7th April 2010, 10:29 AM   #17
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Just looking at the Farnell site should give you a good idea when comparing it with other known transformers. A 1000VA transformer would need to be approx 167mm x 71mm and would weigh around 7.5Kg. I would estimate that yours is somewhere around 800VA.
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Old 8th April 2010, 01:10 AM   #18
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Originally Posted by Tony View Post
if you are using that traffo to power up you gainclones you have nothing to worry about, you have it on hand, use it....that's good for a t least 5 gainclones, maybe more...

Quote:
Originally Posted by AndrewT View Post
this is very tall relative to diameter toroid not normal toroid.
It is a special not a standard.
I suspect it is well over 1kVA, which usually weigh 6.5kg to 7kg (14.7lbs to 15.4lbs) possibly 1.2kVA to 1.5kVA.
Wow, so this would be the only trafo I would need for a Home Theater project? Thats actually what I was jokingly thinking to myself when I first grabbed and almost dropped it from the UPS guy, lol. Looks like I may have been right.

What should I look for if I decide to power up 5 or more gainclones from this? Heat, power spikes, common sense (smoke is probably not a good thing right......???...)
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Old 8th April 2010, 09:43 AM   #19
AndrewT is offline AndrewT  Scotland
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Originally Posted by caxxxxxx View Post
What should I look for if I decide to power up 5 or more gainclones from this? Heat, power spikes, common sense
extreme difficulties in sorting the grounding to achieve low to zero hum and similarly buzzes which both become audible at the speakers.
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