Re: Tannoy Reveal and LM3886 power amp IC

Eeyore wrote:

Wink wrote:

"Arny Krueger" wrote:
"Wink" <x@xxxxx> wrote in message

I see some 3,300 uF 80 volt
Nichicon LQ-M caps for sale on the Active Electronics
web site for less than $1.60 each... ;-)
Did you mean All Electronics?

http://www.allelectronics.com/cgi-bin/item/EC-3380/140300/3300_UF_80_V_ELECTROLYTIC_SNAP-IN_CAPACITOR_.html
whoops, yes All Electronics.
It turns out they're a very good size. I probably can pack 20-ish kufd
a side in there, but would start at 3300 and experiment. I ordered a
dozen.

Well ..... you may not like how 20,000 uF sound ! It will change the clipping behaviour agin.

Couldn't this strategy also overwhelm the the preceeding stages (transformer/rectifier/fuse) by creating a huge inrush current upon turnon?

My advice to you is to get a larger amplifier so you're never close to clipping.


I've resolved the voltage on the 63 V BGs torment. I ordered toroids
with this sec: 50-43-0-43-50. The 43 V taps will run produce 56 V
under load. A compromise value, not excessively low.

Why? With proper voltage filter caps, the original would appear to be adequate. The 63 volt rails were only--marginally--problematic to the 63 volt rated magic caps.

Err .... if only life were that simple ! Capacitor input PSUs are not like resistive loads.

Should I eject the BGs like a retching dog to Ebay hell, the 100 V
winding will allow a return to 63-ish volt operation, maybe with the
cool Nichicons.

Or cool Panasonics or cool Samwhas or cool Rubycons or cool Nippon Chemi Cons !

The damn BRAND is IRRELEVANT !

Graham

.

Relevant Pages

  • Re: Tannoy Reveal and LM3886 power amp IC
    ... Nichicon LQ-M caps for sale on the Active Electronics ... Should I eject the BGs like a retching dog to Ebay hell, ... I think the Behringer Europower amp are much less. ...
    (rec.audio.tech)
  • Re: Tannoy Reveal and LM3886 power amp IC
    ... Nichicon LQ-M caps for sale on the Active Electronics ... It will change the clipping behaviour agin. ... Capacitor input PSUs are not like resistive loads. ...
    (rec.audio.tech)
  • Re: Electricity!
    ... Most posts here should be basic knowledge to any guy responsible for ... whether you are using an appliance in 120 or 240 volt outlets. ... electronics must work at both 120 or 240 volts. ... The homeowner knows that appliance fuses must be 250 ...
    (soc.motss)
  • Re: Electricity!
    ... Most posts here should be basic knowledge to any guy responsible for ... whether you are using an appliance in 120 or 240 volt outlets. ... electronics must work at both 120 or 240 volts. ... The homeowner knows that appliance fuses must be 250 ...
    (soc.motss)
  • Re: Need small 800 volt battery
    ... We're looking to minimize the noise from electronics by going as close ... Therefore, an 800 volt small....d ... cell size... ... battery will work really well. ...
    (sci.electronics)