Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tweakers' Asylum ]

---

[ Alert Moderator ]

---

Just received (4) OIMP V-caps

Posted by cdb on May 26, 2007 at 10:36:39

In Reply to: Ever Measure Component Values for close matching? posted by spindrifter on May 26, 2007 at 09:46:57:

and was pleasantly surprised to see the actual value readings hand marked on the case. For a nominal 5% 3.3uF, they came in at:
3.27
3.3
3.32
3.38

The small .01 TFTF V-caps have a black body and would be hard to mark, though I'd suspect the tolerances are equally as good.

Lytics can be tougher; their values will vary (IIRC) with operating temp and certainly age. The bigest factor IMO, is that yours are virginal and uncooked. I'm doing the V-caps on a Frykleaner - 2 days in series, followed by 2 days in parallel.

I wonder if you'd get better readings on the caps in question if they were run-in a bit.

Interesting post... I'd suspect there are a lot of offsets and nulls in the cumulative tolerances of all the components in a 2-channel audio system. I've run a stereo test tone CD and measured the voltage at the speaker terminals to set the balance control.

I can't imagine any more critical areas for tolerance tightness than phono stages - particularly RIAA EQ - and feedback circuits. Of course, if you add tubes to the picture; especially the twin triodes that I use, then that's another variable.

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

Kimber Kable

---

[ 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 ]

---