Ground Enclosure?

[Alpha579]

'Lo all,
is it a good idea to ground the enclosure for effects? I noticed my highway 89 is slightly noisy, and wondered if this would help...would it also help RF blocking?
Thanx,
Alex

[bioroids]

Hi!

Yes, you should always ground your enclosure so it can "absorb" external noises like radio, etc.

Of course it has to be a metal box

Luck!

Miguel

[Paul Marossy]

Of course it has to be a metal box

Or at least properly shielded...

[Alpha579]

how and where from would you connect it?

[bioroids]

Hi

If you use metallic jacks (input or output) chances are it is already grounded because you should have a cable between the circuit GND and the GND tip on input and output.
For a better contact with the case you may wanna try using one of those serrated lockwashers on the jacks.

If you use plastic jacks you should run a cable from any ground point in the circuit (the ground tip on the output jack for instance) to the case, probably you have to screw it there.

Luck!

Miguel

[Paul Marossy]

Any metal shielding in a plastic enclosure will also need to have electrical continuity and must also be grounded to ensure good EMI/RFI rejection.

[SirPoonga]

I noticed many people here are using collectors tins for enclosures.  Many of those I have tested do not conduct electricity.

[Paul Marossy]

Those tins will conduct, you just have to scratch through the coating on it to get down to the metal.  

[SirPoonga]

That's nice to know.  I plan on using an old band aid tin for my ruby.

[puretube]

same goals for anodized aluminum...

[Alpha579]

great, thanx all for that...

[sir_modulus]

note...on some boxes, the paint is like a through plated hole...it goes on the inside surface of the jack hole....you might wanna scratch that off for better contact...

Nish