T0-3 Alumina or Be insulators

Magura · 11th May 2005, 02:00 AM

Anyone know where I can find T0-3 alumina or Be insulators ?

I just need a few, but they seem hard to find theese days

Magura

Peter Daniel · 11th May 2005, 03:01 AM

Proably because most of those BeO pads "have been already disposed at the nearest chemical disposal center"

Try this thread for more info:
http://www.diyaudio.com/forums/showt...021#post315021

Magura · 11th May 2005, 09:40 AM

Quote:

Originally posted by Peter Daniel
Proably because most of those BeO pads "have been already disposed at the nearest chemical disposal center"

You got me there Peter

The problem is that I'm getting somewhat desperate as I can't seem to find anything that just smells like alumina T0-3 insulators and thought that it may be possible to find the BeO version instead.....it's not that I like the idea of BeO in anything if I could avoid it.

Magura

jacco vermeulen · 11th May 2005, 10:47 AM

How many TO3 ALuminum oxides do you need, Magura ?

Magura · 11th May 2005, 11:17 AM

Quote:

Originally posted by jacco vermeulen
How many TO3 ALuminum oxides do you need, Magura ?

8 would do, 10 would leave me with 2 to mess up.

Rumor will have it that they tend to crack easily when mounted

Magura

jacco vermeulen · 11th May 2005, 11:30 AM

Yep, they have the feel and look of ceramics.
The stuff is quite hard, as long as they are torqued evenly they withstand decent pressure.
But dont drop them !

They can be had at Burklin's in Germany :

www.buerklin.com/gruppen/KapB/B107505.asp

Magura · 11th May 2005, 12:07 PM

Thanks a lot....so they still do exist

Magura

jacco vermeulen · 11th May 2005, 03:21 PM

And work better than TO3 silicon's or mica insulators on class A amplifiers.
I measured temperature difference when i used them for lateral Hitachi Mosfets in class A amplifiers.
Look cleaner too, if you wipe excess thermal grease off.
btw: price in 1990 was 0.90 euro for 1 at the same shop.

let me know if you have trouble ordering, i have an account there for like 20 years.
(i call myself a Pro-diy, sort of like workhorse

)
when i am finished doing Leach stuff, i need to order a whole lot of MPC71 resistors from them for Aleph's and Zen's.
(dead cheap at Burklin's, imo)

11th May 2005, 02:00 AM	#1
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	T0-3 Alumina or Be insulators Anyone know where I can find T0-3 alumina or Be insulators ? I just need a few, but they seem hard to find theese days Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

11th May 2005, 03:01 AM	#2
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Proably because most of those BeO pads "have been already disposed at the nearest chemical disposal center" Try this thread for more info: http://www.diyaudio.com/forums/showt...021#post315021 __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th May 2005, 10:47 AM	#4
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	How many TO3 ALuminum oxides do you need, Magura ? __________________ Looks like Sponge Bob has killed another thread.

11th May 2005, 11:30 AM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Yep, they have the feel and look of ceramics. The stuff is quite hard, as long as they are torqued evenly they withstand decent pressure. But dont drop them ! They can be had at Burklin's in Germany : www.buerklin.com/gruppen/KapB/B107505.asp __________________ Looks like Sponge Bob has killed another thread.

11th May 2005, 12:07 PM	#7
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	Thanks a lot....so they still do exist Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com


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11th May 2005, 03:21 PM	#8
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	And work better than TO3 silicon's or mica insulators on class A amplifiers. I measured temperature difference when i used them for lateral Hitachi Mosfets in class A amplifiers. Look cleaner too, if you wipe excess thermal grease off. btw: price in 1990 was 0.90 euro for 1 at the same shop. let me know if you have trouble ordering, i have an account there for like 20 years. (i call myself a Pro-diy, sort of like workhorse ) when i am finished doing Leach stuff, i need to order a whole lot of MPC71 resistors from them for Aleph's and Zen's. (dead cheap at Burklin's, imo) __________________ Looks like Sponge Bob has killed another thread.

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