Is this the same case? Should a quad of transistors have the same values in diode test?Īnd another question of a beginner: There is a trim pot between transistors on a PCB. I came across this in the JLH 1969 Class A amplifier kit. Although it works for a short time, it usually burns up after a while. If you open it up, you will see a tiny die stuck with glue to the metal base. This one has silver metallic painting on the top and text printing above that. Is this difference a problem? I have some experience with changing power tubes in my valve guitar amp, so I know that tubes must be paired or in quads. Fake or replica 2N3055 transistors are very easy to spot if you know what to look for. One pair was dead and the othes pair seems to be OK, but when I unsoldered these good transistors and measured them with diode test on my multimeter, they had slightly lower parameters (Volts) than the new pair I bouhgt. In this mono amplifier there are two pairs of power transistors. I have spoken with some electricians and they said that the frequency difference is not problem, but here comes another thing. Find 2n3055 Equivalent Transistors related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of 2n3055 Equivalent Transistors information. Well, I bought one 2SA1943 and one 2SC5200.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |