C7 cap on Aleph5

Duck-Twacy · 12th September 2004, 04:15 PM

Okay, probably a dumb question...

In my ongoing Aleph5 project I am disliking the 0.047 uF (or 47 nF) capacitor. Its too big for the KK pcb (where it is numbered C1, I think its C7 on the original layout of mr Pass).

As you can see here the leads are almost touching the resistors.

I now have 47 nF 630 V MKP from Digikey (leads are 20 mm apart). Is it alright to replace them with 250 V MKPs (eg these Wima 's have leads 10 mm apart ). The holes on the PCB are 6 mm apart.

What's best to use here soundwise (and fitting)??

Thanx
Ronald

Netlist · 12th September 2004, 04:25 PM

Ronald
C7 is there to prevent oscillation IIRC.
No problem for the Wima's, C7 is not in the signal path.
If any, the influence on the sound will be extremely small.

/Hugo

Duck-Twacy · 12th September 2004, 05:27 PM

Thank you.

So I could also use MKT instead??
(its a bit hard to find a shop with these small value MKPs and to order them for Gemany is a bit cumbersome, Schuro doesn't alway reply to foreign emails)

Netlist · 12th September 2004, 07:59 PM

Sure.

/Hugo

Leeuwarden · 13th September 2004, 06:09 PM

Remo has Chateauroux MKP 0.047 for 1,40 euro.
Kost een drol

Taco · 13th September 2004, 06:20 PM

Quote:

Originally posted by Leeuwarden
Remo has Chateauroux MKP 0.047 for 1,40 euro.
Kost een drol

You mean "Kost geen drol" ?

Leeuwarden · 13th September 2004, 06:27 PM

Whatever... I don't give a ****
(Apology for my language

: it is a Dutch saying)

Duck-Twacy · 13th September 2004, 08:50 PM

Quote:

Originally posted by Leeuwarden
Remo has Chateauroux MKP 0.047 for 1,40 euro.
Kost een drol

Yes, forgot to look there.
Dimensions are 10*16. Standing on a flat side it might fit..

Although its probably too good for this purpose. Unfortunaltely going over does cost more than a drol. I'll ask him to mail it.

edit. damn verzendkosten 10 euro...

Leeuwarden · 13th September 2004, 08:58 PM

I'm using one standing straight up. No problem there. It takes almost no space.

Maybe it is time to just start your car.

Fuel is cheaper than poststamps I'm afraid.

(I'ts a 20 minute drive from your place?)

rwagter · 14th September 2004, 03:11 PM

bend the wires like this an there no problem at all, I used the exact same cap

Ralph

12th September 2004, 04:15 PM	#1
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	C7 cap on Aleph5 Okay, probably a dumb question... In my ongoing Aleph5 project I am disliking the 0.047 uF (or 47 nF) capacitor. Its too big for the KK pcb (where it is numbered C1, I think its C7 on the original layout of mr Pass). As you can see here the leads are almost touching the resistors. I now have 47 nF 630 V MKP from Digikey (leads are 20 mm apart). Is it alright to replace them with 250 V MKPs (eg these Wima 's have leads 10 mm apart ). The holes on the PCB are 6 mm apart. What's best to use here soundwise (and fitting)?? Thanx Ronald __________________ Is that all there is?

12th September 2004, 05:27 PM	#3
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	Thank you. So I could also use MKT instead?? (its a bit hard to find a shop with these small value MKPs and to order them for Gemany is a bit cumbersome, Schuro doesn't alway reply to foreign emails) __________________ Is that all there is?

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12th September 2004, 04:25 PM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	Ronald C7 is there to prevent oscillation IIRC. No problem for the Wima's, C7 is not in the signal path. If any, the influence on the sound will be extremely small. /Hugo

12th September 2004, 07:59 PM	#4
Netlist diyAudio Moderator Join Date: Jan 2003	Sure. /Hugo

13th September 2004, 06:09 PM	#5
Leeuwarden diyAudio Member Join Date: Nov 2002 Location: The Netherlands	Remo has Chateauroux MKP 0.047 for 1,40 euro. Kost een drol

13th September 2004, 06:27 PM	#7
Leeuwarden diyAudio Member Join Date: Nov 2002 Location: The Netherlands	Whatever... I don't give a **** (Apology for my language : it is a Dutch saying)

13th September 2004, 08:58 PM	#9
Leeuwarden diyAudio Member Join Date: Nov 2002 Location: The Netherlands	I'm using one standing straight up. No problem there. It takes almost no space. Maybe it is time to just start your car. Fuel is cheaper than poststamps I'm afraid. (I'ts a 20 minute drive from your place?)

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