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| Re: Where can I get a power transformer for Kasino U100 amp? [message #27888 is a reply to message #27883] |
Sun, 11 October 2020 18:20   |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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I don't know of any source for an exact replacement for any Kustom power transformers. What is the problem with your transformer?
You mention 40 volts for the secondary, but I think that you are referring to the power supply dc voltage of plus and minus 40 volts dc. The transformer output will be less than that, probably about 30-35 volts ac per side of the center tapped secondary.
You may need to find a used one from a dead amp to replace it. There are companies that will custom wind or rewind power transformers. You might look into that.
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| Re: Where can I get a power transformer for Kasino U100 amp? [message #27895 is a reply to message #27889] |
Wed, 14 October 2020 19:24 |
Scot²Al²enPer²y
Messages: 13
Registered: October 2020
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Junior Member |
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stevem wrote on Mon, 12 October 2020 12:25What happened to the amp that took out the original PT, as I have never seen one go bad unless the amp had a blown output stage and someone just kept replacing the fuse over and over without atleast halving the fuse rating for troubling shooting purposes to 1.5 or 1 amp
First off, thanks for the replies.
I got the amp, plugged it in, turned it on, no sound then suddenly the smell of something burning. Trip the circuit breaker at my house. Shut everything off and smoke was coming from the back by the transformer.
I think what happened is I was the victim of a scam. The fuse was the wrong amps and there were a couple of other issues when we open this thing up to look and see what was going on. Basically, there is no way this thing was working properly before I plugged it in.
I bought it on reverb. Contacted the seller and had an immediate response Saying sorry and they would give me a full refund. I was like, well how do we handle getting the amp back to you? They said they had shipping insurance so just keep the amp. When you think about it, you could sell a bunch of broken stuff, basically giving it away, and get the full price paid to you by reverb leaving the person who bought the item responsible for repairing or getting rid of it.
Attaching some photos where you can see the fuse. The transformer had 2 missing screws that were screwed into the back panel. You can see the corner of the back panel closest to the transformer is bent inward because there was a very tiny screw use there. The back panel had this issue on another corner that you can't really see in the photo. Again there's no way this wouldn't have blown when it was turned on with this being the set up.
I can't post links to images yet. If anyone wants to see pics email me and I can send them
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| Re: Where can I get a power transformer for Kasino U100 amp? [message #27897 is a reply to message #27883] |
Thu, 15 October 2020 05:39 |
stevem
Messages: 4775
Registered: June 2004
Location: NY
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Senior Member |
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You can not use that K300 transformer in what amounts to a K100 since it has over 3 times the current output of your original
All of that unused extra current will kick up that transformers voltage output to levels that will harm the amp!
The K300 transformer is also a easy 3 times the physical size of your original!
The K300 transformer was also designed to be used with the big choke that's part the power supply in these amps .
In short unused current above what's needed for the amp to make peak wattage ( 300 in this case) turns into excess voltage!
[Updated on: Thu, 15 October 2020 08:14] Report message to a moderator |
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