Brad, By using an eraser, you can do a very fine trim of the thickness of the trace, and hence a very fine "tweak" of the electrical characteristics, especially if you have a solder plate / HASL.
JaMi ----- Original Message ----- From: "Brad Velander" <[EMAIL PROTECTED]> To: "Protel EDA Discussion List" <[EMAIL PROTECTED]> Sent: Friday, November 26, 2004 9:16 AM Subject: Re: [PEDA] Dielectric constant Pencil Eraser? Sincerely, Brad Velander Senior PCB Designer Northern Airborne Technology 1925 Kirschner Rd., Kelowna, BC, V1Y 4N7. tel (250) 763-2329 ext. 225 fax (250) 762-3374 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Nukien Sent: Friday, November 26, 2004 8:08 AM To: Protel EDA Discussion List Subject: [SPAM] - Re: [PEDA] Dielectric constant - Email found in subject Argh ! Talk about torture ! Toss out that you have a cool solution, but you can't show us or you would have to kill us. -- Dean Carpenter deano at areyes com 94TT :) ----- Original Message ----- From: "Brian Guralnick" <[EMAIL PROTECTED]> To: "Protel EDA Discussion List" <[EMAIL PROTECTED]> Sent: Thursday, November 25, 2004 3:15 PM Subject: Re: [PEDA] Dielectric constant > For tuning, I have a double or triple multipoint scratch/cut areas at the > end of my printed inductors, Usually, 1-2 would be cut at the tuning stage. > > For my fine tuning, I have designed a special scratchable pattern throughout > the edges of my printed inductors. Since this pattern allows me to tune > within 0.5% using a pencil eraser for tuning & it's an in house secret, you > will have to do all the trial & error we did to get it to work on your own. > > ________ > Brian G. ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[EMAIL PROTECTED] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[EMAIL PROTECTED] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
