|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
|
|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
In Reply to: Capacitors don't matter ... posted by Dave I on July 25, 2000 at 19:03:33:
Those Panasonic HFQ caps (and FA/FC) have not the best DF/Q specs, just low ESR compared to other electrolytics. For this application, look for a cap with a low DF, often suggested for coupling use.A good film cap really does blow away electrolytics in most areas except capacitance per unit volume. ESR down to as little as .003 ohms while most electrolytics are .040 along with Tantalums, with better ones getting into the .015 area. These values are for modestly sized values. Small film caps and small electrolytics can have an ohm or two!
Bravo conrad johnson for having tube products with all film caps, even at the expense of full-power bass as in the MV45/50 amps.
Have you guys measured/tried Black Gate electrolytics? They don't give any specs in their literature, just lots of verbiage. I tried measuring them one on a bridge and got good numbers for an electrolytic. Since they take so long to break in, I'm sure I was not getting the best readings and would need to form them and leave them on the meter for a week or two and see if the numbers got better...
BTW, Sprague (now a Vishay company) makes solid aluminum electrolytics (OS-CON) too and may be a little easier to buy than Sanyo's. I just find that the selection of values limited with large values nonexistant so low impedence can't be gotten at low frequencies.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Capacitors don't matter ...good thread! - Mark Kaepplein 07/28/0014:49:01 07/28/00 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
