Hello folks,
Doing my first recapping here and a have this large smoothing capacitor next to the 6CA4 rectifier. It has 5 pins on the bottom. It seems to hold two caps (one of 40 uf and of for 10 uf). Can you recommend a good replacement & manufacturer that you beleive would do a good job?
Many thanks for your help,
Romain
Doing my first recapping here and a have this large smoothing capacitor next to the 6CA4 rectifier. It has 5 pins on the bottom. It seems to hold two caps (one of 40 uf and of for 10 uf). Can you recommend a good replacement & manufacturer that you beleive would do a good job?
Many thanks for your help,
Romain
Attachments
That's actually FOUR capacitors, with a common negative connection. The two connections with the red dots (I only see one with a red dot, I presume there's another, guessing bwtween the shown red dot and the negative which is the connection with the most wires going to it). are 40uF each, and the other two are 10uF each.
I don't know if these are made anymore, but I've heard of the guts being removed and four modern capacitors being put in the case. I don't know of someone who could do this offhand.
I don't know if these are made anymore, but I've heard of the guts being removed and four modern capacitors being put in the case. I don't know of someone who could do this offhand.
I think there are 4 caps in this can, two 40uF and two 10uF. It might be difficult to find an exact replacement. If there is room under the chassis replace the can with four individual caps that have the same capacitance and the same or higher voltage rating.
Steve
Steve
These are still often used in various tube amplifiers.
You'd need to add a clamp or plate for chassis mounting.
Capacitor - CE Mfg., 350V, 40/40/40/40 μF | Antique Electronic Supply
Capacitor - CE Mfg., 400V, 40/40/30/20mF, Electrolytic | Antique Electronic Supply
You'd need to add a clamp or plate for chassis mounting.
Capacitor - CE Mfg., 350V, 40/40/40/40 μF | Antique Electronic Supply
Capacitor - CE Mfg., 400V, 40/40/30/20mF, Electrolytic | Antique Electronic Supply
To avoid ground loops, mount the capacitor on a twist lock plate, and then mount the assembly
on top of the chassis. Then the can won't touch the chassis.
on top of the chassis. Then the can won't touch the chassis.
OP did not tell us what kind of precious amp this is.
The cap may still be 100% fine and recapping can do
harm and limit the resale value of a vintage item.
This said - buy a chinese 10$ component tester first
which is the better investment.
The cap may still be 100% fine and recapping can do
harm and limit the resale value of a vintage item.
This said - buy a chinese 10$ component tester first
which is the better investment.
So, don't use a twist lock capacitor. That's not what you have in there, and twist lock caps are silly money.
Can you tell us what diameter that cap is and what component this is?
JJ makes a 4 section cap for less than $20 that might be a good replacement. It's a 40/20/20/20 with a fatter diameter than the normal 1-3/8". The JJ is 1-1/2" or 40mm, is your existing cap that size?
Depending on the design of the component, you may be able to just use the JJ cap, or you may have to parallel two sections of the JJ cap to get your second 40uF section, then add in a 22uF cap elsewhere.
Can you tell us what diameter that cap is and what component this is?
JJ makes a 4 section cap for less than $20 that might be a good replacement. It's a 40/20/20/20 with a fatter diameter than the normal 1-3/8". The JJ is 1-1/2" or 40mm, is your existing cap that size?
Depending on the design of the component, you may be able to just use the JJ cap, or you may have to parallel two sections of the JJ cap to get your second 40uF section, then add in a 22uF cap elsewhere.