Anyone know anything about Trio KW-55G
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I was given this receiver by a freind.
We turned it on and it blew the fuse ont he back.
Then we replaced it with a fuse that was 3 amps insted of 4 amps it blew the fuse.
Then we tried a 3 amp slow blowing fuse and a small coil near the power transformer on the bottom of the reciever caught on fire.
Anyone know possible what the cause of this is.
My first plan is to replace the coil, install the proper fuse and check the output of the power transformer.
Anyone have any suggestions.
Also I would like to know if anyone has any ideas on what the quality of this receiver is, would it sound good etc.
We turned it on and it blew the fuse ont he back.
Then we replaced it with a fuse that was 3 amps insted of 4 amps it blew the fuse.
Then we tried a 3 amp slow blowing fuse and a small coil near the power transformer on the bottom of the reciever caught on fire.
Anyone know possible what the cause of this is.
My first plan is to replace the coil, install the proper fuse and check the output of the power transformer.
Anyone have any suggestions.
Also I would like to know if anyone has any ideas on what the quality of this receiver is, would it sound good etc.
There's a schematic for the Lafayette on my site (bottom of page): http://www.audiophool.cjb.net/Audio.html
4A fuse looks right - or a 2A slow-blow, since it says 200W. You may have a shorted power supply diode, filter cap, or power transformer. The last will be tough to replace - hope it's a diode. If you haven't worked with high voltage before, DON'T work with it live!
Mine sounds pretty good - I need to try better speakers than I have in the basement.
4A fuse looks right - or a 2A slow-blow, since it says 200W. You may have a shorted power supply diode, filter cap, or power transformer. The last will be tough to replace - hope it's a diode. If you haven't worked with high voltage before, DON'T work with it live!
Mine sounds pretty good - I need to try better speakers than I have in the basement.
Thatch_Ear
Addicted Member
KW-22, mine is SE.
Found a KW-55 schematic: http://www.mcmlv.org/Archive/HiFi/KW55U.pdf
Bauhausler
Rational Subjectivist
If it's catching fire and stuff then it has a serious fault. I'm guessing power supply high voltage capacitors because that's what it is 92% of the time in old tube gear. that coil thing that fried was probably the 3uH inductor between the HT winding and diode. That indicates an overcurrent condition in the HT circuit. Usually bad capacitors. This is not impossible, just tedious to fix.
You might like the finished product. PP 6BQ5 amps can sound very nice.
You might like the finished product. PP 6BQ5 amps can sound very nice.
Are you sure it was a coil that flared up? There's another possibility, if it's built like other similar gear of its type. There was a small filter capacitor across the AC mains; on my Lafayette LR800, that cap was blown to bits. May be the same thing...
And yes, Bauh, that does look quite familiar.
Regards,
Gordon.
And yes, Bauh, that does look quite familiar.
Regards,
Gordon.
Do you still have the kW-22 and if so what's the chance you have the Manuel/schematic?
Looks right. Thank you. Didn't know it was put out by a different name. This will save me some headaches ha ha
