I'm looking into building another super-amp after many years of doing nothing and thinking about it. Part of my Bucket List !
Presently I'm favouring the Semelab Bipolar devices, in luie of the older MJ15003/15004 devices which I have found to be very good.
The Semelab devices I understand are the most powerful Audio Transistors on the market - boasting a 400 watt Collector Rating and a Vceo of 260 Volts (or 230 Volts for the lower version ) with an Ic of 30 amps. They are T03 packaged devices > MG 6333 K & MG 9413 K and the lower voltage 230 Volt version MG 6332 K & MG 9412 K.
I believe 8 of these higher voltage devices will do about 1,000 watts RMS at 8 ohms allowing them to run as high as +/-130 Volts Dc Rails and still remain inside their SOAR region. This equates to around 85 Volts RMS across the speaker.
Has any one actually used these transistors and if so how much were they and what results did you have ? I intend to use the metal T03 package version and not the lower rated plastic packs of the same series.
Presently I'm favouring the Semelab Bipolar devices, in luie of the older MJ15003/15004 devices which I have found to be very good.
The Semelab devices I understand are the most powerful Audio Transistors on the market - boasting a 400 watt Collector Rating and a Vceo of 260 Volts (or 230 Volts for the lower version ) with an Ic of 30 amps. They are T03 packaged devices > MG 6333 K & MG 9413 K and the lower voltage 230 Volt version MG 6332 K & MG 9412 K.
I believe 8 of these higher voltage devices will do about 1,000 watts RMS at 8 ohms allowing them to run as high as +/-130 Volts Dc Rails and still remain inside their SOAR region. This equates to around 85 Volts RMS across the speaker.
Has any one actually used these transistors and if so how much were they and what results did you have ? I intend to use the metal T03 package version and not the lower rated plastic packs of the same series.
Can you send me some type numbers, or links to data sheets, to browse some of these devices ? What sort of Vce limits do they have ? Most devices I'm aware of don't do much better that 100 Volts or so because of SOAR limits. Thanks.
Its a good idea to search a topic - the same questions often pop up several times a year and big, economical power transistors are always in demand. Have a look at this thread: http://www.diyaudio.com/forums/soli...stors-todays-market-any-experience-these.html
Thanks Ian - I did a quick search and nothing came up under the type numbers and thought my post was on another site.
Cheers !
Yes, our search engine isn't exactly wonderful so now I just use Google and the DIY audio threads grouped there are quickly and easily accessed. Once it is attuned to your interests and favourites sites it becomes a phenomenal resource
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