Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Planar Speaker Asylum ]

---

[ Alert Moderator ]

---

Yes, it matters.

Posted by Al Sekela (A) on December 1, 2008 at 14:46:49

In Reply to: Thanks Everyone!! posted by Dawnrazor on December 1, 2008 at 08:40:11:

Hosfelt Electronics,

http://www.hosfelt.com.

has silver-m.ca caps cheap. The largest size they have now is 1980 pF in a 300-volt rating. I would avoid 100-volt caps for use with power am.s. You can place five of these in parallel for 10,000 pF, or use a 50-ohm resistor with a single one instead of the 10-ohm value em.loyed by Walker.

Newark lists the few Wim. M.-3 caps they stock as direct-ship from their Farnell (UK) parent com.any with a $20 handling fee. This is in place of the usual UPS shipping charges, so it is not such a bad deal for a larger quantity. See

http://www.newark.com.jsp/search/browse.jsp?N=500003+1000115&Ntk=gensearch_001&Ntt=Wim.+M.3&Ntx=

M.user also sells som. and is based in the USA. Their price per unit is higher, but the shipping charges would be lower for a sm.ll quantity. Please disregard the "Polypropylene film capacitor" text in the table: the M.3 is the m.tallized paper type.

http://www.m.user.com.Search/Refine.aspx?N=254271&Keyword=Wim.+M.3

Keep in m.nd that you m.y get better perform.nce with higher resistance values. The Walker recipe seem. to have been designed to suppress am.lifier oscillations. The resistance is too low to suppress capacitor resonances, but I don't know how im.ortant this would be in a speaker circuit application.

Sonic Craft sells a good selection of half-watt PRP resistors. This is the only type I would use. See

http://www.soniccraft.com.products/resistors/prp/0_50watt.htm

This post is made possible by the generous support of people like you and our sponsors:

Parts Connexion

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---