Cap Question for SSL 9k
- Thread starter jeroddumas
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SSLtech
Well-known member
Ceramics should be used for the compensation caps. They are used in the originals.
Remco -How's it going! -You built one of the very first If I recall correctly...
I still have those switch caps... and a number of VR spares if you're interested...
Keith
Remco -How's it going! -You built one of the very first If I recall correctly...
I still have those switch caps... and a number of VR spares if you're interested...
Keith
jeroddumas
Well-known member
So those should be which ones??? I'm kinda new at this.
Jeroddumas: The way I look at the schematic all the caps with a pF value should be ceramic.
Steve: That rectifier will do the job for ya.. no doubts.
SSLtech: I'm fine.. I build 4 of the pre-amps and they still perform very nicely. I made 2 channels in 1 rackunit accompanied by 2 Keith LM3915 LED driver circuits for some level indication. And a Green PSU to feed all the components.
Greetz
Remco
Steve: That rectifier will do the job for ya.. no doubts.
SSLtech: I'm fine.. I build 4 of the pre-amps and they still perform very nicely. I made 2 channels in 1 rackunit accompanied by 2 Keith LM3915 LED driver circuits for some level indication. And a Green PSU to feed all the components.
Greetz
Remco
SSLtech
Well-known member
[quote author="BladeSG"]Sorry to hijack again..... but do any of you guys know if the W04 (1.2A 400V) Bridge Rectifier will do the job for this project?[/quote]-Should work just fine. You don't pull much juice with these (unless you try and run too many from a single PSU!!! :wink: )
Keith
Keith
Neeno
Well-known member
[quote author="SSLtech"][quote author="BladeSG"]Sorry to hijack again..... but do any of you guys know if the W04 (1.2A 400V) Bridge Rectifier will do the job for this project?[/quote]-Should work just fine. You don't pull much juice with these (unless you try and run too many from a single PSU!!! :wink: )
Keith[/quote]
How many channels can we run with a single PSU ?
I'm also thinking about make another PSU for +-15... but...
Keith[/quote]
How many channels can we run with a single PSU ?
I'm also thinking about make another PSU for +-15... but...
HI Steve,
I've build just one PSU for all the things in the housing.
I'm running from a slightly modified GreenPre PSU (i added a +/- 15V line for the TL052 on the board).
this PSU feeds 2 SSL9k boards, 2 LM3915 meters, and 1 OB-1 output balancer. and some aditional LED directly from the secondaries of the Xformer.
So 1 PSU in the box and off you go!
Greetz
Remco
I've build just one PSU for all the things in the housing.
I'm running from a slightly modified GreenPre PSU (i added a +/- 15V line for the TL052 on the board).
this PSU feeds 2 SSL9k boards, 2 LM3915 meters, and 1 OB-1 output balancer. and some aditional LED directly from the secondaries of the Xformer.
So 1 PSU in the box and off you go!
Greetz
Remco
muadgil
Active member
Hello everybody, a little DiY newbie question about caps for the SSL9k
I took a look at Keith partlist to find caps properties and i saw, for example : 2u2/63V, or 220uf/25V.
But what about the others : 100nf/??V (i'd like to fill the ??)
Perhaps a stupid question but my capacities are limited to soldering components, i got no electronical knoledge at all.
Other thing, i read in that topic that "all the caps with a pF value should be ceramic.": is it to reduce cost or does the ceramic caracteristic has an importance over the polyester one?
thanks for your answers, i'd not like to make an incorrect BOM, it's for a grouped command in France
I took a look at Keith partlist to find caps properties and i saw, for example : 2u2/63V, or 220uf/25V.
But what about the others : 100nf/??V (i'd like to fill the ??)
Perhaps a stupid question but my capacities are limited to soldering components, i got no electronical knoledge at all.
Other thing, i read in that topic that "all the caps with a pF value should be ceramic.": is it to reduce cost or does the ceramic caracteristic has an importance over the polyester one?
thanks for your answers, i'd not like to make an incorrect BOM, it's for a grouped command in France
muadgil
Active member
Really?
No 9k diyer wants to fill my ??
Or even tell how i could guess it; i'm a newbie but i want to learn :grin:
No 9k diyer wants to fill my ??
Or even tell how i could guess it; i'm a newbie but i want to learn :grin:
alo
i`ve never made this pre,but concerning your question,in the pf range any ceramic will do,since they are most of the time above 63v.if you wanna get fancy,go with cog/npo,that are better.in the nf range,go polyester(wima),and you`ll be home.
are you in france?.if so try rs components or farnell,and you`ll have plenty to chose.
try musikding.de for the wimas(i buy there).
best regards
pedro
i`ve never made this pre,but concerning your question,in the pf range any ceramic will do,since they are most of the time above 63v.if you wanna get fancy,go with cog/npo,that are better.in the nf range,go polyester(wima),and you`ll be home.
are you in france?.if so try rs components or farnell,and you`ll have plenty to chose.
try musikding.de for the wimas(i buy there).
best regards
pedro
muadgil
Active member
Thanks a lot for these informations.
I'll be now able to continue this project :thumb:
Bom dìa (not sure it's like that)
I'll be now able to continue this project :thumb:
Bom dìa (not sure it's like that)
gltech
Well-known member
Hello Everyone,
New to DIY (well, I have one fabulous SCA N72 under my belt :grin: ), and I've tried to search and read everything here before entering this (possibly redundant) post. I'm building a 9k pre, and I'm just hoping you all will answer a couple of questions:
1. Based on the other posts I've read, here's my strategy for the caps:
-ceramics for all 'pF' values.
-electrolytics for polzarized caps.
-Wima polyesters for the rest.
Ok?
2. Any suggestions for L1 and L2?
3. Analog Devices has the MAT-02, but there's an "EH" and an "FH" model. Any difference? The "EH" is more expensive, but somebody on the board said it has better specs. Advice?
3. Are 1/4 watt resistors sufficient?
Thanks! :thumb:
Glenn
New to DIY (well, I have one fabulous SCA N72 under my belt :grin: ), and I've tried to search and read everything here before entering this (possibly redundant) post. I'm building a 9k pre, and I'm just hoping you all will answer a couple of questions:
1. Based on the other posts I've read, here's my strategy for the caps:
-ceramics for all 'pF' values.
-electrolytics for polzarized caps.
-Wima polyesters for the rest.
Ok?
2. Any suggestions for L1 and L2?
3. Analog Devices has the MAT-02, but there's an "EH" and an "FH" model. Any difference? The "EH" is more expensive, but somebody on the board said it has better specs. Advice?
3. Are 1/4 watt resistors sufficient?
Thanks! :thumb:
Glenn
Neeno
Well-known member
[quote author="gltech"]Hello Everyone,
New to DIY (well, I have one fabulous SCA N72 under my belt :grin: ), and I've tried to search and read everything here before entering this (possibly redundant) post. I'm building a 9k pre, and I'm just hoping you all will answer a couple of questions:
1. Based on the other posts I've read, here's my strategy for the caps:
-ceramics for all 'pF' values.
-electrolytics for polzarized caps.
-Wima polyesters for the rest.
Ok?[/quote]
Yes Sir !
I've used:
npo and/or cog for the ceramics
rubycons zl for the electros
and wimas polypro (polyester will do...) for the rest
[quote author="gltech"]2. Any suggestions for L1 and L2?[/quote]
I used 2 cheap inductances...
[quote author="gltech"]3. Analog Devices has the MAT-02, but there's an "EH" and an "FH" model. Any difference? The "EH" is more expensive, but somebody on the board said it has better specs. Advice?[/quote]
I've used FH version, EH seem to have better specs, but i haven't compared them.
[quote author="gltech"]3. Are 1/4 watt resistors sufficient?[/quote]
Yes, 1/4 watt... i suggest 1% metal film resistor !
[quote author="gltech"]Thanks! :thumb:
Glenn[/quote]
You're welcome ! :guinness: :green:
New to DIY (well, I have one fabulous SCA N72 under my belt :grin: ), and I've tried to search and read everything here before entering this (possibly redundant) post. I'm building a 9k pre, and I'm just hoping you all will answer a couple of questions:
1. Based on the other posts I've read, here's my strategy for the caps:
-ceramics for all 'pF' values.
-electrolytics for polzarized caps.
-Wima polyesters for the rest.
Ok?[/quote]
Yes Sir !
I've used:
npo and/or cog for the ceramics
rubycons zl for the electros
and wimas polypro (polyester will do...) for the rest
[quote author="gltech"]2. Any suggestions for L1 and L2?[/quote]
I used 2 cheap inductances...
[quote author="gltech"]3. Analog Devices has the MAT-02, but there's an "EH" and an "FH" model. Any difference? The "EH" is more expensive, but somebody on the board said it has better specs. Advice?[/quote]
I've used FH version, EH seem to have better specs, but i haven't compared them.
[quote author="gltech"]3. Are 1/4 watt resistors sufficient?[/quote]
Yes, 1/4 watt... i suggest 1% metal film resistor !
[quote author="gltech"]Thanks! :thumb:
Glenn[/quote]
You're welcome ! :guinness: :green:
G
Guest
Guest
I used Wima FKP and MKS for everything but the 10pf and 3.3pf
Small values of FKP are available at this wonderful shop
http://www.musikding.de/
For electros - I think I used Elna Silmics (I had a few lying around)
Small values of FKP are available at this wonderful shop
http://www.musikding.de/
For electros - I think I used Elna Silmics (I had a few lying around)
Andy Millar
Well-known member
If someone can let me have a circuit I can probably help on suggesting capacitor types.
G
Guest
Guest
Andy
Here you go
http://rclsgi.eng.ohio-state.edu/~bocook/diy/ssl-9k/ssl_9k_preamp.pdf
ta
SImon
Here you go
http://rclsgi.eng.ohio-state.edu/~bocook/diy/ssl-9k/ssl_9k_preamp.pdf
ta
SImon
