Precision polypropylene 1% caps - any good? - Page 5

Tomo · 7th March 2003, 04:08 PM

Hi,

I would simply use SMD's directly. I would get SMD soldering tips though. Although soldering SMD's is very easy, desoldering SMD's happened to be pain in the posteriors.

I mistakenly modded the EVM so I had to do few desoldering.

SMD IC's are whole different matter. I didn't do soldering SMD IC's for my amps, but I did few elsewhere. I remember, being able to solder them on. But I never succeeded in taking them off since I used double-sided tape or glue to hold them in place.

What about my amp? Its good ol' non-inverted NFB opamp amp. So I didn't need testing. Besides, it was EVM board. I knew it's gonna work ... So I was CHEATING.

(Well, after doing SMD at work, I didn't feel like doing SMD from scratch at home at the time ... It's awhile back.)

T

Tomo · 11th March 2003, 05:39 PM

Peranders -

This is ma "cheater" SMD amp for viewing. Why? Primarily to make fun of it. Surprsingly good sounding however.

Tomo

Tomo · 11th March 2003, 05:42 PM

Hello,

Underside of the EVM amp board look like this.

Tomo

Tomo · 11th March 2003, 06:01 PM

Hi,

This is close up of the modded EVM board. Notice non-uniform soldering. It is the trace of me soldering. Most of resistors had to be replaced.

Tomo

A 8 · 16th March 2003, 04:31 PM

To get back on track...I've used the caps you refer to extensivly and find them pretty good. I think the tinned led foil is more imortant then iron legs.... actually find them sonically (OK marginally) superior the the wima variant...

Cheers

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7th March 2003, 04:08 PM	#41
Tomo diyAudio Member Join Date: Jun 2002	Hi, I would simply use SMD's directly. I would get SMD soldering tips though. Although soldering SMD's is very easy, desoldering SMD's happened to be pain in the posteriors. I mistakenly modded the EVM so I had to do few desoldering. SMD IC's are whole different matter. I didn't do soldering SMD IC's for my amps, but I did few elsewhere. I remember, being able to solder them on. But I never succeeded in taking them off since I used double-sided tape or glue to hold them in place. What about my amp? Its good ol' non-inverted NFB opamp amp. So I didn't need testing. Besides, it was EVM board. I knew it's gonna work ... So I was CHEATING. (Well, after doing SMD at work, I didn't feel like doing SMD from scratch at home at the time ... It's awhile back.) T

16th March 2003, 04:31 PM	#45
A 8 diyAudio Member Join Date: Mar 2003 Location: Gothenburg	To get back on track...I've used the caps you refer to extensivly and find them pretty good. I think the tinned led foil is more imortant then iron legs.... actually find them sonically (OK marginally) superior the the wima variant... Cheers

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