the circuit in question is the radio shack p-box kit of an OTL output audio amplifier that operates on 6 volts DC.
2007-03-10 12:10:50 · 2 answers · asked by CHRISTOPHER C 1 in Consumer Electronics ➔ Other - Electronics
No, the TIP42 is only 65 Watt device, where the MJ2955 is a 115W device.
The NTE replacement for a MJ2955 is an NTE219. These should be available.
2007-03-10 15:16:27 · answer #1 · answered by megaris 4 · 0⤊ 0⤋
Opto's commonly can no longer take care of alot of present day. you utilize the exterior BJT with the aid of volume of present day it is had to adjust the relay. additionally, the determination of PNP over NPN is via switching velocity. PNP transistors are in many situations quicker than NPN transistors. in case you pulse an NPN with a squarewave sign and seem on the output, it particularly is "rounded" on the corners, while with regular PNP transistors the sign isn't as distorted.
2016-11-24 19:22:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋