120-watt LTC6090 and NJL3281D/NJL1302D ThermalTrak Audio Power Amplifier.

[@Al-bd8hm]

Excellent work. BuildAudioAmps is the best. Thanks for all you do.

[@buildaudioamps]

Thank you too for watching.

[@Vincenzo_F]

WoW! So Cool!

[@buildaudioamps]

Thanks.

[@syedmahdi8947]

Very nice,,

[@buildaudioamps]

Thank you! Cheers!

[@HillsWorkbench]

I did sort of a sarcastic video on these transistors way back. Not so much on the concept but in the cheesy marketing with which they were introduced.

[@buildaudioamps]

Thanks.

[@Mrhifitunes]

How is the performance for 4 ohm load?

[@buildaudioamps]

Although the prototype was designed for 8 ohms, the amplifier can also work with a 4-ohm load. This will test the ThermalTrak's ability to control bias and prevent thermal runaway. Thanks.

[@gajananphadte3440]

Those thermaltrek transistors are discontinued long back.

[@kiltrash1]

The versions with a 'DG' suffix are still current (OnSemi, etc) and available (DigiKey, etc), eg NJL1302DG and NJL3281DG

[@gajananphadte3440]

@kiltrash1 mfg discontinued

[@buildaudioamps]

FYI, you can still buy them at Mouser. Thanks.

[@buildaudioamps]

FYI, if you go to Onsemi's website, these are listed as "active" devices: NJL3281D/NJL1302D -Pd 200W, and NJL0281/NJL0302D -Pd 180W version. Thanks.

[@gajananphadte3440]

@@buildaudioamps Nice that they started mfg it again. Thanks

[@antoniojoseandreomartinez9710]

👍❤️🫂

[@ashokrajak5101]

❤🙏 india