Amplifier 300 Watt
The transistors are MJL4281A (NPN) and MJL4302A (PNP), and feature high bandwidth, excellent safe operating area, high linearity and high gain. Driver transistors are MJE15034 (NPN) and MJE15035 (PNP). All devices are rated at 350V, with the power transistors having a 230W dissipation and the drivers are 50W.
- The total DC is over 110V and can kill you.
- The power dissipated is such that great care is needed with transistor mounting..
- The amplifier circuit is NO SHORT CIRCUIT PROTECTION. The amp is designed to be used within a subwoofer or other speaker enclosure, so this has not been included. A short on the output will destroy the amplifier.
- Transistor MJL4281A and MJL4302A are new most constructors will find that these are not as easy to get as they should be. The alternatives are MJL3281/ MJL1302 or MJL21193/ MJL21194.