A few weeks back my Vibrochamp Blew its fuse, I thought I'de narrowed it down to the rectifier tube. So I bought a new rectifier (Jan-Phillips 5Y3WGT) and it arrived in the mail today. So I Put it in, and It Hummed LOUDLY all the tubes lit up, and then The fuse blew again. So I guess it wasn't the rectifier afterall. (which is fine cause I'de been meaning to get a new rectifier anyways)
So I found the R.G. keen/GeoFX Tube amp Debugging page back when It first blew the fuse. I did a test given on the site to deterimine if its blowing fuses because of the rectifier. Basically it says to Take the rectifier tube out, replace the fuse, and See if it still burns the fuse out. It says if it DOESN'T then the rectifier is the problem. So I did that (didn't leave the amp on Long though, maybe a minute, probably less) and the Fuse didn't Burn out, But the amp did Hum LOUDLY (hum uneffected by volume control). So I Figured that meant that the rectifier was the problem. But I was wrong apperently.
So after the fuse blew even after replaceing the rectifier, I looked on that site again. An it said it might also be a shorted Output tube. So he gives instructions to see if thats the problem. Basically same deal as the rectifier tube test thing. Pull the power tube, replace the fuse, turn the amp on, If it doesn't blow the fuse then Its probably the power tube.
So I did that, and the fuse Doesn't blow (Left it on for a few minutes Just to make sure this time). And It also didn't hum this time. But, I haven't an extra 6V6 To test in it....
So here's my question. Before I go to the trouble of Ordering a replacement 6V6 (the suspected broken rectifier is a Very old RCA), Does this sound like Its just a tube problem? Like if I just get a replacement, that'll be that? Or Does this sound like something else? Like a blown transformer? or Something? I have no problem ordering new tubes, I just don't wanna wait a week for new tubes to come in the mail, only to Find out That wasn't the problem in the first place. I also really don't wanna just take it to a tech (being as theres no techs around here I trust), if I don't have to.
So heres the symptoms...
1. Blows Fuses (only with The power tube in though now)
2. Before it blows Fuses it produces a Loud hum that is uneffected by the volume control.
3. When it initially stopped working, it didn't act strange at all. Just Totally fine one minute, then nothing but a loud hum the next.
Any Help would be REALLY appreciated. I'm starting to worry.
Thanks for any help/info anyone can provide.
So I found the R.G. keen/GeoFX Tube amp Debugging page back when It first blew the fuse. I did a test given on the site to deterimine if its blowing fuses because of the rectifier. Basically it says to Take the rectifier tube out, replace the fuse, and See if it still burns the fuse out. It says if it DOESN'T then the rectifier is the problem. So I did that (didn't leave the amp on Long though, maybe a minute, probably less) and the Fuse didn't Burn out, But the amp did Hum LOUDLY (hum uneffected by volume control). So I Figured that meant that the rectifier was the problem. But I was wrong apperently.
So after the fuse blew even after replaceing the rectifier, I looked on that site again. An it said it might also be a shorted Output tube. So he gives instructions to see if thats the problem. Basically same deal as the rectifier tube test thing. Pull the power tube, replace the fuse, turn the amp on, If it doesn't blow the fuse then Its probably the power tube.
So I did that, and the fuse Doesn't blow (Left it on for a few minutes Just to make sure this time). And It also didn't hum this time. But, I haven't an extra 6V6 To test in it....
So here's my question. Before I go to the trouble of Ordering a replacement 6V6 (the suspected broken rectifier is a Very old RCA), Does this sound like Its just a tube problem? Like if I just get a replacement, that'll be that? Or Does this sound like something else? Like a blown transformer? or Something? I have no problem ordering new tubes, I just don't wanna wait a week for new tubes to come in the mail, only to Find out That wasn't the problem in the first place. I also really don't wanna just take it to a tech (being as theres no techs around here I trust), if I don't have to.
So heres the symptoms...
1. Blows Fuses (only with The power tube in though now)
2. Before it blows Fuses it produces a Loud hum that is uneffected by the volume control.
3. When it initially stopped working, it didn't act strange at all. Just Totally fine one minute, then nothing but a loud hum the next.
Any Help would be REALLY appreciated. I'm starting to worry.
Thanks for any help/info anyone can provide.
Comment