hi,
My tube amp was working well until I plugged in a defective guitar booster.
my trafos give me 220v as before but after bridge rectifying i get 680v AC!!!!!
I don't get it, i am just a DIYer not a tech. Can somebody help? I have bought another bridge but i must now what has happened - safety reasons.
Also as i had 400v max. caps and they went up to 600v and more,
should i change them all?
I fear for my OT's.
Thanks
My tube amp was working well until I plugged in a defective guitar booster.
my trafos give me 220v as before but after bridge rectifying i get 680v AC!!!!!
I don't get it, i am just a DIYer not a tech. Can somebody help? I have bought another bridge but i must now what has happened - safety reasons.
Also as i had 400v max. caps and they went up to 600v and more,
should i change them all?
I fear for my OT's.
Thanks
You probably lost your rectifiers and possibly the filter capacitors.
If you're not experienced with high voltage work, DON'T MESS AROUND WITH IT, let a competent tech do the work. Electrocution and explosions are entirely possible.
The good news is that your OPTs are probably OK.
If you're not experienced with high voltage work, DON'T MESS AROUND WITH IT, let a competent tech do the work. Electrocution and explosions are entirely possible.
The good news is that your OPTs are probably OK.
Right out of order
Yes, you should. You have stressed them. They might not blow up immediately, but their lifetime has been drastically shortened. They need to be replaced. Find an experienced person to fix it...
("Right out of order" = "You shouldn't have done that.")
alk said:Also as I had 400V max. caps and they went up to 600V and more, should I change them all?
Yes, you should. You have stressed them. They might not blow up immediately, but their lifetime has been drastically shortened. They need to be replaced. Find an experienced person to fix it...
("Right out of order" = "You shouldn't have done that.")
Hi,
yeah i suspected the multimeter went wrong. I've done some testing to find out it doesn't read DC anymore, now all is AC. Having said that, my problems are not resolved. Now i have 440 v
DC where it should be 280v. Volts readings are ok. It reads my house 230v accurately and i tried with a dc transformer that i got and it reads 12v well but instead of dc gives ac which is what is wrong with my multimeter.
So give the high voltage ? It is a 230v trafo.
yeah i suspected the multimeter went wrong. I've done some testing to find out it doesn't read DC anymore, now all is AC. Having said that, my problems are not resolved. Now i have 440 v
DC where it should be 280v. Volts readings are ok. It reads my house 230v accurately and i tried with a dc transformer that i got and it reads 12v well but instead of dc gives ac which is what is wrong with my multimeter.
So give the high voltage ? It is a 230v trafo.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Tubes / Valves
- Out Of Order