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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Thnx Thorsten - a couple more questions posted by atoz on September 26, 2001 at 13:03:05:
Hi,>1- All electrolytic caps can be replaced by film types and
>vice versa?All Electrolytic Caps can TECHNICALLY be replaced by suitable Film Capacitors, but large Value Film Cap's are HUGE, so are unlikely to fit mechanically. Normally you cannot replace Film Cap's with Polarised Electrolytic Caps, though some special cases apply (like PSU) where this would possible (but a downgrade sonically) if polarity is observed.
>2- W/out the schematic and with your experience, would increasing
>or decreasing the value of the PS or cathode bypass cap by, say,
>10-20% affect the frequency response of the amp?Yes, it would but not much. The whole issue is complex. In some cases reducing the Cathode Bypass Cap value on the Output Stage of an SE can extend the low level LF Response at the expense LF power for example, a trade I find subjectively quite good sounding. Also, without at least trcing the circuit you cannot really know which capacitor is which.
>What brand of film-type cap would you recommend?
I personally use Arcotronic (industrial) Foil & Film units for coupling (or fancy Tinfoil units) and Ansar Supersound Polypropylen (metalised) Capacitors for the Powersupply. They ar easy to get in the UK, less so in the US, sorry.
Later T
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Follow Ups
- Re: Thnx Thorsten - a couple more questions - Thorsten 04:30:44 09/27/01 (1)
- Re: Thanks again - nt - atoz 08:02:57 09/27/01 (0)
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