T0-3 Alumina or Be insulators

[Magura]

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]

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/showthread.php?postid=315021#post315021

 

[Magura]

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]

How many TO3 ALuminum oxides do you need, Magura ?

 

[Magura]

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]

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]

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


Magura 🙂

 

[jacco vermeulen]

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)