Good day. All the right channel transistors in my Mc2500 have been damaged in the amplifier for a long time. The right channel transistors on the heat sink.
Transistors in Power Circuit:
NPN, MJ3247
PNP, MJ3237
NPN, DAR, MPS-A14
I am not able to find these transistors or alternates online at all. I want to get good quality ones for proper repair. Please, does anyone have any suggestions on this?
Transistors in Power Circuit:
NPN, MJ3247
PNP, MJ3237
NPN, DAR, MPS-A14
I am not able to find these transistors or alternates online at all. I want to get good quality ones for proper repair. Please, does anyone have any suggestions on this?
https://www.utsource.net/uk/sch/MJ3247.html
At utsource they seem to have that transistor and maybe the others.
Now, I am not sure they have those thay say. But it is worth a try.
At utsource they seem to have that transistor and maybe the others.
Now, I am not sure they have those thay say. But it is worth a try.
Thanks, lineup. The transistor seems to be a used one. I need a new one if possible. I'll need many. My amplifier uses 15 transistors per channel.
Those transistors are high power TO-66 devices (except the A14). There is unlikely to be any direct replacement but I suspect the MJE1503x series will be a close alternative, but can't guarantee that even these are a direct replacement. From the data sheets I suspect you might even need to pair up some drivers, due to the extreme dissipation with low impedance loads. With 6 pairs of output you could feed three per driver, or I'd probably want to be really safe and triple the drivers with one per two output devices, but that would mean some juggling on the heatsink.
I take it the power supply voltage adjusts for different loads?
I take it the power supply voltage adjusts for different loads?