Gold or silver plating soldered boards?

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#21
dice45 said:
BTW, one of the most sought-after cartridges is a working sample of the vdHul Grasshopper IV Gold. It uses gold wires for the coils and i have learned from a guy who owned them both that he clearly prefers the Grasshopper Gold over the Grasshopper Silver. An indicator for me that highest conductivity of a conductor is not necessarily achiving best sonics.
Click to expand...

Is that an MC? In that case it probably has more to do with the
differing masses of silver- and goldwound coils than their
electrical characteristics. That's my guess, at least. Why a
heavier coil should sound better is another thing, but taking
resonances and other phenomenae into account, it is perhaps
more important to get "the right" mass for the coil than to get
the lowest one?
 
#22
GOLD VERSUS SILVER

Fellows,



BTW, one of the most sought-after cartridges is a working sample of the vdHul Grasshopper IV Gold. It uses gold wires for the coils and i have learned from a guy who owned them both that he clearly prefers the Grasshopper Gold over the Grasshopper Silver. An indicator for me that highest conductivity of a conductor is not necessarily achiving best sonics.
Click to expand...

Nothing to be "learned" from one isolated experience I'd say?😉

This is however an interesting topic for which I don't mind starting a thread.
I would certainly invite some knowledgeable people such as Mr.Jonathan Carr on this.
Platinum anyone?

Cheers,😉
 
#23
Question about how PCB's are made.

As far as I know the only way to do plated through holes is the following (via's are done the same way):

-Drill all the holes first (with a CNC drill I hope).

-Lay down a negative resist pattern on both sides of the board.

-Coat the insides of the holes with a conductive material (a carbon based ink is normally used I believe).

-Electroplate the board (laying down layer of tin everywhere you want a track or pad to be).

-Strip the resist.

-Etch the board (removing copper everywhere you didn't plate (the tin plate acts as a resist layer for the copper as well as plating the holes).

-Apply solder mask, etc.

Is this correct or is there some other process that is used to create double sided boards with plated through holes (or boards with via's)?

Follow up question. How does hi-end commercially produced audio gear sound good when they contain plated PCB's?

Perhaps Dice45's rejection of plated boards is based on something else (like problems with the DIY plating process) rather than just the sonic effects of plating.

😕

Phil
 
#25
artnyos,

I was talking about making double sided boards, not laminated, multi-layer PCB's.

Once you get past the lamination process, the drilling, plating and etching process was the same as the process I described. Since I was talking about double sided, single layer boards, obviously the lamination process isn't part of what happens.

To paraphrase from the link you posted:

- bunch of steps related to making individual layers
- Laminate layers (This gets us to the starting point of the process I described).
- Drill holes
- Electroplate
- Etch Copper
- Etc.

Could you please post without being insulting?

Phil
 
#31
TEFLON BOARDS

Hi fellows,

Since you asked for a source for teflon boards here is another one:

http://rswww.com/

They are a multinational with fair representation throughout the world.
PTFE boards are available in various sizes.
For tube afficionados there are turret tags and prb solder tags as well.
While your at it:you can also find teflon tube insulation (tubing) for most wire gauges.

Also I highly recommend Deskadel in Belgium at :
http://www.perso.be/deskadel/
For a lot of stuff unobtainable elsewhere and related to silver and gold wire Mr.De Laet ,president of the company,can usually unearth it given time.

Cheers,

🙂
 
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