mounting radial power supply caps

[mikepukmel]

I gave up on doing this (power supply with radial caps) the previous build since I had a turret board with the old configuration already, but the next supro type thing is a parts-caster type build. I have some radial caps the right electrical value.

Found a really neat build on one of those facebook groups. Thinking about something like this, but question for y'all: I think it needs some mechanical mount for the body of the cap. The leads are bent so the cap mount will be "springy". What if I did something like this, but put a long nylon screw into the board, nut on both sides, mount it to its tight to the side of the cap, then put a small tie wrap around the cap and screw? Sounds a little tedious but its only 4 caps.

The caps I got a re all 105C long life 500v! Could not even find anything like that in old axial config guitar amp type.







***

Or, what about laying the cap down against the board, soldering the leads sideways to the turrets, then glue or tie wrap the cap body to the board?

Thanks!

[mikepukmel]

In the above build, they also put resistors right under the caps, which seems like would affect the life of the cap when they get roasting.

[fred]

Or, what about laying the cap down against the board, soldering the leads sideways to the turrets, then glue or tie wrap the cap body to the board?

I can't really address your concern, but of the two options you mention I can say I have definitely seen many amp builds with radial caps mounted sideways. The issue of vibration is then solved by some type of epoxy or silicon I would think.

Wish i could be of more help.

[Helmholtz]

[QUOTE]Or, what about laying the cap down against the board, soldering the leads sideways to the turrets, then glue or tie wrap the cap body to the board?/QUOTE]

THat!^^^^^^^^

[R.G.]

The picture of caps mounted up high on springy leads over a built-in capacitor roaster resistor is about as bad a way to mount them as I can think of. The failure rate ought to be high on that. The comments are right - lay them down and secure them to the board with either cable ties or glue. My favorite is non-acetic acid curing silicon caulk. It gives both a tenacious hold and a rubbery, vibration absorbing mounting.

Radials are intended to mount with the leads-end flush on a board so the radius of the case can brace it against flexing. Up in the air, it'll bend and break the leads or the mounting.

Notice that the non-leads end of the cap is common with one of the terminals, usually the negative one. Check this with your ohmmeter and ensure that you don't create a shock or failure hazard by allowing contact with the metal at the "top".

[Justin Thomas]

I'm gonna ask again... Chuck H., I know you say you didn't create it, but do you have that EXCEPTIONAL graphic on how to do this with radials on a turret board, & can you post it again?

Jusrin

[mikepukmel]

Awesome, thanks everyone, way cool. Just ordered two tubes of
https://www.alliedelec.com/product/g...-155/70159837/
I'll post photos when get the caps mounted.