I just finished my enclosure last night and need to get the SI in there, but I lack the input caps. What voltage and size are we looking for in input DC-blocking caps? Anyone have measurements/statistics on-hand?
...looking at the panasonic ECG ceramics on digikey, +/- 10%
Looks like they have two sizes in 2.2uF, 1.25mm and 0.85mm
Panelhead, up for sending a few of those Muratas to TN?
Other question, where are you guys picking up Panasonic FM caps? Need a couple to peg into the power input pins...
--BillyM
...looking at the panasonic ECG ceramics on digikey, +/- 10%
Looks like they have two sizes in 2.2uF, 1.25mm and 0.85mm
Panelhead, up for sending a few of those Muratas to TN?
Other question, where are you guys picking up Panasonic FM caps? Need a couple to peg into the power input pins...
--BillyM
More than I need
Billy,
The stock caps are the 0.85 size. I have put the 1.25 size in two of the boards. But it is more difficult, requires soldering and then sliding the cap to make contact with both pads. Then again, those little caps will be even more difficult to hold and solder in.
Shoot your address to me and I can send some of both. The larger caps are 4.7 ufd, but they sound great. Both are 10 volt, the bias voltage is around 2.5 volts. The parts are so small they only package in lots of 10 and 20.
George
BillyM said:
Billy,
The stock caps are the 0.85 size. I have put the 1.25 size in two of the boards. But it is more difficult, requires soldering and then sliding the cap to make contact with both pads. Then again, those little caps will be even more difficult to hold and solder in.
Shoot your address to me and I can send some of both. The larger caps are 4.7 ufd, but they sound great. Both are 10 volt, the bias voltage is around 2.5 volts. The parts are so small they only package in lots of 10 and 20.
George
BillyM said:
Panasonic FM's are available at Digikey. Just plug in "Panasonic FM Capacitor 16v" in the search to get the list.
In my search for a smaller yet suitable replacement for my huge poly caps a question popped into my head that I can't seem to find an answer for.
If there are multilayer ceramic SMD's available in sizes up to around 10uf, is there such a capacitor with leads attached to it? If there is I sure can't track them down. Help please?
Thanks again,
MEXXX
If there are multilayer ceramic SMD's available in sizes up to around 10uf, is there such a capacitor with leads attached to it? If there is I sure can't track them down. Help please?
Thanks again,
MEXXX
MEXXX said:
I thought (someone please correct me if I'm wrong) that Multilayer Ceramics were specifically for SMD. You could always carefully solder leads to them 😀
guys, it is painful to read your discussions how you get 20-30 of these magic amps, while we, europeans, are not able even to touch it 🙁
Please, please, please, send one to this side of the earth.
Is anyone willing to help?
we live on the same planet. unfortunately, most of the time (especially, when it conserns innovations) I feel like I live on the moon...🙂
Please, please, please, send one to this side of the earth.
Is anyone willing to help?
we live on the same planet. unfortunately, most of the time (especially, when it conserns innovations) I feel like I live on the moon...🙂
He Irss,
I´ve told your here
http://www.diyaudio.com/forums/showthread.php?postid=575909#post575909
about a german dealer. 3 days after paying I´m playing with the SI. So, how fast is your bank and post? 😀
Carsten
I´ve told your here
http://www.diyaudio.com/forums/showthread.php?postid=575909#post575909
about a german dealer. 3 days after paying I´m playing with the SI. So, how fast is your bank and post? 😀
Carsten
carawu: Huge danke shon to you....I haven;t noticed your post earlier.
I am certainly purchasing one from that retailer.
btw, they ship to Lithuania, don't they? 🙂
I am certainly purchasing one from that retailer.
btw, they ship to Lithuania, don't they? 🙂
Hi Irss,
you have a mouth to ask and fingers to type.... 🙂 So please ask Wolfgang spectrumaudio @ t-online.de
Take a look at the international order page
http://www.spectrumaudio.de/order.html
Due to european/german laws there are 2 years of waranty...but only if you left the SI in original condition!
😀 😀 😀
Carsten
you have a mouth to ask and fingers to type.... 🙂 So please ask Wolfgang spectrumaudio @ t-online.de
Take a look at the international order page
http://www.spectrumaudio.de/order.html
Due to european/german laws there are 2 years of waranty...but only if you left the SI in original condition!
😀 😀 😀
Carsten
motherone said:
The first time I used multilayer ceramics was in decoupling opamps. These were leaded NP0/CG0 types.
Wish the NP0/CG0 and the copper electrode types of SMD were available in 1 ufd and larger values. Due to the dielectrics used the largest are still less than needed for signsl coupling in this application.
In Houston the electronics parts sellers stock the molded multi layer leaded ceramics in fairly large values. These are the military M39014 type. These are 15 -20 cents each.
No music, sitting in a hotel room, smoking a Punch Rare Corojo, drinking a 24 oz Heineken. Fixing to get out the tweezers and do some SI board surgury. We all have different things that get us off.
George
irss said:
Try AMT out.. He sends all the stuff you need to do the mods in a tidy package:
http://mywebpages.comcast.net/ampbox/
motherone said:
I bought all the stuff from AMT and am very happy with the quality of the parts, the design of the case and the service. It definitely made it easy to get all the stuff from Art.
I had a new buddy over the other night...he has $30K wrapped up in his system and was pretty impressed with my little sub- $200 AMT with a Foreplay in front of it. My wife and I think our system sounds better than his, but it's so close that it's more a matter of how you like your sound as opposed to one system being clearly better IMHO.
I've been using the battery out of a UPS and charging it with a spare motorcycle charger. The battery puts out 13.3 v when fully charged and lasts a long time.
Thanks AMT!
Well, being impatient and not wanting to order and wait for more parts, I finished my mod. I ended up mounting the Dayton poly caps outside of the case. It actually gives it some character and sort of a hi-fi look. I'll take some pics of it as soon as I get a chance.
.I nicked the power wire with my iron and didn't notice until it was too late 🙁 . It touched the bottom of the board and the rest is history.
I was trying to go for "Worlds smallest SI case mod" so things were packed in there pretty tight. The case is so small that I had the cut both sides of the PCB off were it gets wider at the one end.
Oh well, it was one of my shamefuly aquired $3.99 X10.com amps and I have another one left. Boy, they sure went fast.
MEXXX
I was trying to go for "Worlds smallest SI case mod" so things were packed in there pretty tight. The case is so small that I had the cut both sides of the PCB off were it gets wider at the one end.
Oh well, it was one of my shamefuly aquired $3.99 X10.com amps and I have another one left. Boy, they sure went fast.
MEXXX
MEXXX said:
Yeah, I think I was gone when the X10 stuff went down. I probably would've picked up 25 of them for that price 😀
Oh well, at least you have a spare. I've been contemplating how to do my second case mod. I have a very tiny Context Engineering box. Maybe one of those small aluminum hammonds would work well (the 1455 series?). I know a lot of folks put headphone amps into them. The main problem is where to mount the binding posts.
One of mine is going in a Hammond 1455K (wheter it wants to or not 😉) and I think I'll be able to squeeze in a pair of decent binding posts, but anything smaller that than and you have to think creatively 🙂
/U.
/U.
AHHHHHHHHHHH, success at last!!! I finished replacing the board I cooked and got it all in the case and working. All I have to say is....... AMAZING!!!!! The little amp sounds much much better and the bass, well...... its there now 🙂 . I'll post pics as soon as I get a chance.
MEXXX
MEXXX
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