Another Dumb Question...

[ranwill]

OK, I'm a total newb, but I like soldering -- and listening. I'm about to build my first Pimeta, and I'd like to socket the resistors so that I can experiment with gain (I'd like to hear the differences that the different resistors make).

I can't figure out tho how to do this. Do I solder the socket to the board? How so the resistors stay in the socket? Solder, friction?

Is there a relatively easy way to make my decisions permanent once I pick the gain that works best?

Any help will be greatly appreciated.

Also, Amp **** is frequently posted, but rarely are the back sides shown. I enjoy and learn from seeing how the various projects are assembled, but a view of the back showing soldering techniques would be useful too. If I can see how something is supposed to look, it saves lots of mistakes.

Thanks

Ranwill

 

[ARL002]

Quote:

Originally Posted by ranwill I can't figure out tho how to do this. Do I solder the socket to the board? How so the resistors stay in the socket? Solder, friction?

When I built my Meta42, I used sockets and you just solder the sockets to the board and cut the leads of the resister down and stick them into the holes. There is plenty of friction to keep them in place in the holes.

Quote:

Originally Posted by ranwill Is there a relatively easy way to make my decisions permanent once I pick the gain that works best?

Yes just simply leave them in

 

[einolu]

Something socketed stays in pretty well, at least in the case of OpAmps, I dont know about individual sockets. Where can one get those anyway?

 

[Born2bwire]

Quote:

Originally Posted by einolu Something socketed stays in pretty well, at least in the case of OpAmps, I dont know about individual sockets. Where can one get those anyway?

Do what I do, scavenge and improvise. You could probably cut up a DIP socket into individual sockets and use that or just use the DIP itself and have a bank of sockets to use. A more complicated and pointless solution would be to use female Berg strip sockets (the kind you attach to wires, crimp to wire Berg.... sorry I've been making up connections using Berg strips and wires all this summer so I'm on a Berg binge), crimp them to form a socket then find some convoluted way to solder them into place.

 

[Pars]

Quote:

Originally Posted by einolu Something socketed stays in pretty well, at least in the case of OpAmps, I dont know about individual sockets. Where can one get those anyway?

Digikey or Mouser both carry them. They are typically called SIP sockets (single inline pin). You can also get Pin receptacles (MilMax) which are like the socket part except solder firectly into the board hole and then accept a resistor or other component lead. I've never used these in a DIY, although my tube preamp has some of these for the RIAA phono resistors and they seem to work well in this application.

 

[einolu]

thanks, just wanted to know. for my current cmoys there is no real need for that.