FINALLY. A very simple explanation. I have not seen one person mention to touch the POSITIVE lead of the capacitor, in order to drain it, lol. Amazing. Thanks!
Good video ! I'm going to make one of these. I have a tweed 5e3 clone and it made a pop noise and now the low input mic channel has no sound. Hope I can find what is wrong with it.
Thanks! Try changing the first preamp tube first. If that doesn't solve it, check the plate pin of that side of the triode which is dedicated for the mic channel. If the high input mic channel has the signal then it is not the tube, it can only be the input jack or the two resistors 1M and 68K. Check those and also check the ground and other soldering connections. on the jack and on the tube socket.
Might want at least 16 gage wire for that one. I'd suggest 470 ohm 5 watt resistor and 16 gage or higher lead. Also try to connect to the ground point at the incoming power jack. A powder coated cabinet is a poor ground.
Thanks for your comment! I've been using it for years like this and haven't noticed any issues. When you connect a dmm you can clearly see that all the voltage is drained immediately without a spark so it works just fine for this purpose. I guess it is always better to have thicker wire whenever you can but it is not critical in this application in my opinion.
I've heard many different values for the resistor size, 470/2k/22k etc. What is the correct size for discharging a fender amp's filter caps? I have a 5-watt at 1k ... will that work well?
Hi, my amp has multiple value caps. The highest has 220uF 350V 85° values. Which resistor would you suggest me to get? How many Ohms or kOhms and W? Thanx!
You look like a master. Can you just point me in the right direction? I have a Mark Levinson no.27 amp. When I turn it on I heard a strong pop on the right speaker and then the unit went into protection mode. Even time I turn it on after that the power switch would pop back to off. Same result with all cables off with only power plugged in. The power light still lights, fuse is good. Can anyone give me some guidance?
FINALLY. A very simple explanation. I have not seen one person mention to touch the POSITIVE lead of the capacitor, in order to drain it, lol. Amazing. Thanks!
You are welcome, thank you for your comment!
Nice, simple construction. Thanks!
Good video ! I'm going to make one of these. I have a tweed 5e3 clone and it made a pop noise and now the low input mic channel has no sound. Hope I can find what is wrong with it.
Thanks! Try changing the first preamp tube first. If that doesn't solve it, check the plate pin of that side of the triode which is dedicated for the mic channel. If the high input mic channel has the signal then it is not the tube, it can only be the input jack or the two resistors 1M and 68K. Check those and also check the ground and other soldering connections. on the jack and on the tube socket.
Might want at least 16 gage wire for that one. I'd suggest 470 ohm 5 watt resistor and 16 gage or higher lead.
Also try to connect to the ground point at the incoming power jack. A powder coated cabinet is a poor ground.
Thanks for your comment! I've been using it for years like this and haven't noticed any issues. When you connect a dmm you can clearly see that all the voltage is drained immediately without a spark so it works just fine for this purpose. I guess it is always better to have thicker wire whenever you can but it is not critical in this application in my opinion.
Con una bombilla también se puede hacer.
Yeah, good idea, then you can even see it glowing while you're discharging.
I've heard many different values for the resistor size, 470/2k/22k etc.
What is the correct size for discharging a fender amp's filter caps?
I have a 5-watt at 1k ... will that work well?
The resistor size is not critical, the 1K 5W will work just fine.
Delatsch : Thanks!
Hi, my amp has multiple value caps. The highest has 220uF 350V 85° values.
Which resistor would you suggest me to get? How many Ohms or kOhms and W? Thanx!
Hi, the value doesn't matter, you can use any resistor you got, I would suggest 2W because it's mechanically sound and not too bulky.
@@Delatsch thanx, since I have to buy some, I wanted to get the more precise ones so to keep safe the caps as long as possible.
You can use higher value, I would suggest something like 100K or 220K and 2W or 3W is plenty enough.
i only have 1/4 W and 1/2 W resistors on me, is there any way around that?
You can use two larger value resistors in parallel or in series, but 1/2 watt should be just fine.
very helpful thank you!
Glad you found it helpful! Thank you!
You look like a master. Can you just point me in the right direction? I have a Mark Levinson no.27 amp. When I turn it on I heard a strong pop on the right speaker and then the unit went into protection mode. Even time I turn it on after that the power switch would pop back to off. Same result with all cables off with only power plugged in. The power light still lights, fuse is good. Can anyone give me some guidance?
Thanks. As always it can be many things. Most probably one of the filter caps.