Microphone Preamp?

arcane secrets and handshakes revealed!

Microphone Preamp?

Postby Ty_Bower » Mon Aug 02, 2010 2:54 pm

Is anyone still selling (inexpensive) microphone preamp kits? Something like this would work:

http://www.madaboutsound.com/prod_det.a ... =cf&ctid=4

Or the long defunct kit from High Efficiency Loudspeaker (HEL):

http://web.archive.org/web/200609271706 ... ifier.html

I see Parts Express has a Velleman K1803 kit. Is that my only option, short of breadboarding something myself?

http://www.parts-express.com/pe/showdet ... er=320-204
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."
User avatar
Ty_Bower
KT88
 
Posts: 1492
Joined: Wed Mar 21, 2007 2:50 pm
Location: Newark, DE

Postby Ty_Bower » Wed Aug 04, 2010 12:30 pm

I've decided to build the Eric Wallin preamp. It's well documented. I sketched it in LTspice and it appears it will work just fine. The parts are cheap and readily available. I like the nifty clipping indicator.

The perfboard construction seems a bit hackish. I'd like to use Jason Neal's PCB artwork. Being too stupid (or lazy? both?) to etch my own boards, I'm looking for quotes on professionally (?) etched boards. It's a small thing at less than four square inches. The one quote I've received so far is $4.60 for each board, plus a one time $6 setup fee and a $7 shipping fee.

By any slim chance, does anyone else want an etched board? They're nothing fancy (single sided, no through plating, 1 oz. copper) but I assume they'll work just fine.

Can anyone suggest a cheaper place to get small, one-off boards etched?
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."
User avatar
Ty_Bower
KT88
 
Posts: 1492
Joined: Wed Mar 21, 2007 2:50 pm
Location: Newark, DE


Return to test & measurement

Who is online

Users browsing this forum: No registered users and 1 guest