New Naim Output Transistors

[EUVL]

Hugh,

How is your own experience with Peacock ?

These days there are so many transistors around from unknown sources with the same part number printed that I never know for sure unless they come from a Toshiba distributor.

And unfortunately their distributors in Europe do not stock JFETs and limited MOSFETs. : (


Cheers,
Patrick

 

[Ultima Thule]

Hi Luke,

Ah, not these guys - they are in Canada and quite a bit dearer!!

Try

http://www.peacock.com.sg

Cheers,

Hugh

Hi Hugh,

I remember we actually exchange couple of words here on diyaudio for a long time ago about peacock.
As per your words they are trusted but I remember the issue with them was that one have to make quantity ordering, don't know what the minimum amount would be, Hugh?

Cheers Michael

 

[etsang3]

Hi, i would like to let all you know that I have changed a Nait-2 O/P power transistors to complementary pair ON Semiconductor MJE15032 and MJE15033 (with some circuit modification) and the amp sound much better) http://www.onsemi.com/PowerSolutions/product.do?id=MJE15033

 

[dimitri]

return to the topic, there is another rather new 350W TO-3 device, but only 40A peak and double die:
http://www.onsemi.com/pub/Collateral/MJ21294.PDF

 

[kASD]

return to the topic, there is another rather new 350W TO-3 device, but only 40A peak and double die:
http://www.onsemi.com/pub/Collateral/MJ21294.PDF

Dimitri, but its still very little thing in comparision with what we have in the domain of vertical mosfets...

K a n w a r

 

[dimitri]

Let us compare SOA and the cost, which is $5.7 for this device, and yes, it is slow

 

[kASD]

Ok just take cost comparision, still vertical N-channel mosfets are still cheaper and faster than this bipolar....

 

[tiefbassuebertr]

Thanks for the info. Semelab is a small UK-based foundry that is willing to do specials and custom parts. (They are the ones who make the Exicon and Magnatec lateral MOSFETs.)

According to the Naim website:

http://www.naim-audio.com/products/nap250.html

"The NAP 250 uses the same 007 transistors that were custom-designed for the NAP 500. These outstanding components each provide up to 80 amps and 350 Watts, negating the need to use parallel pairs of transistors (which always have a negative effect on sound)."

Interesting informations - thank you