TO-3P MICA INSULATOR
http://www.globalsemi.com/semis415.html
http://www.alliedelec.com/cart/partlookup.asp?
ST=AS&PartNumber=9356524
http://www.alliedelec.com/cart/partlookup.asp?ST=AS&PartNumber=9356527
Damn you guys are lazy, 10 minutes on a search engine.....
I shall return,
Fred
http://www.globalsemi.com/semis415.html
http://www.alliedelec.com/cart/partlookup.asp?
ST=AS&PartNumber=9356524
http://www.alliedelec.com/cart/partlookup.asp?ST=AS&PartNumber=9356527
Damn you guys are lazy, 10 minutes on a search engine.....
I shall return,
Fred
The ones in my photo are Bergquist Sil-PAD K-10. They are not pennies in quantity from Digi-Key. I bought 12 for $12. Yikes.
They do have the best R<sub>θ</sub> of any insulating pad sold on Digi-Key. Despite their description in the catalog, these are not rigid PVC with adhesive. They are thin floppy beige pads without adhesive.
They do have the best R<sub>θ</sub> of any insulating pad sold on Digi-Key. Despite their description in the catalog, these are not rigid PVC with adhesive. They are thin floppy beige pads without adhesive.
In Sweden at http://www.elfa.se/ the silicon pads are USD 0.40 each in quantity 100 and adhesive which are slightly better are USD 0.35 at quantity 10.
Not to bad.
/UrSv
Not to bad.
/UrSv
Re: They are not pennies in quantity from Digi-Key
Even 25000 from D-K will cost you $0.50 each.
Fred Dieckmann said:
Even 25000 from D-K will cost you $0.50 each.
I think He was talking about the mica ones which are what He recommends and a lot cheaper than Sil-pads
How's the R<sub>θ</sub> on those? The Sil-PAD K10 were the best I could find, but I'm always looking for lower temperatures.
To All: many thanks.
That's all I'll ever need to know about T0247(3P) insulators and where to get them.
That's all I'll ever need to know about T0247(3P) insulators and where to get them.
Adjusing Aleph X Help
Hi, since i` m no expert,
can anyone explain me how to adjust aleph x?
there are tree pots, i think two of them are for adjusting quiscent current and one for regulating dc offset at the speaker output.
where can i meassure the cuiscent current?
thank you verry much,
Ralf
Hi, since i` m no expert,
can anyone explain me how to adjust aleph x?
there are tree pots, i think two of them are for adjusting quiscent current and one for regulating dc offset at the speaker output.
where can i meassure the cuiscent current?
thank you verry much,
Ralf
AX power supply
Hi all,
I've been reading a book by Morgan Jones (Valve Amplifiers) and he mentions that the amp , though important, is in principal a modulating device and that it's the power supply that is of extreme importance. The finest designed power amp is worthless without a high quality power supply. I'm interested in an LC style power supply, perhaps an LCLC. I've been reading that each successive LC bank reduces ripple 12 db. There are problems with this approach that require shunts or bypass circuits and I'm still studying and trying to comprehend this approach.
Are the brains in this group in the mood to discuss a high quality, high power PS?
John Inlow
Hi all,
I've been reading a book by Morgan Jones (Valve Amplifiers) and he mentions that the amp , though important, is in principal a modulating device and that it's the power supply that is of extreme importance. The finest designed power amp is worthless without a high quality power supply. I'm interested in an LC style power supply, perhaps an LCLC. I've been reading that each successive LC bank reduces ripple 12 db. There are problems with this approach that require shunts or bypass circuits and I'm still studying and trying to comprehend this approach.
Are the brains in this group in the mood to discuss a high quality, high power PS?
John Inlow
another question
Seeking critical inductance:
I noted the formula in another thread that the says to me: Henries = V / milliAmps x 0.88.
Can the formula be simplified for solid state circuits (which use chokes in millihenries): mH = V/I x 0.88?
John Inlow
Seeking critical inductance:
I noted the formula in another thread that the says to me: Henries = V / milliAmps x 0.88.
Can the formula be simplified for solid state circuits (which use chokes in millihenries): mH = V/I x 0.88?
John Inlow
Re: Adjusing Aleph X Help
All the info is provided by Grey at the beginning of this thread, so all you have to do is click on the first page.
ralf said:
All the info is provided by Grey at the beginning of this thread, so all you have to do is click on the first page.
You can reduce ripple using an RC power supply as well. Each bank of RC is a 1st-order low-pass filter. My Aleph-X power supply which is good for +/-12V at 8A uses CRCRC filtering with 44,000µF capacitor banks and 0.125Ω resistors. The 120Hz ripple reduction is -13dB, and I dissipate 16W in the process.