The 2N3055 (NPN) and MJ2955 (PNP)are complementary devices. Black Headlights & Tail Lights For 97 98 99 00 Toyota. The PNP Bipolar Power Transistor is designed for use in high power amplifier and switching amplifier applications. It is designed for general-purpose switching. new exclusive high-end 2N3055 Power Transistor Motorola 5x Pcs for sale online the best selection of. Since ST probably use the same line for TIP3055/TIP2955 there should be no difference using good old TO-3 cans. 2N3055 is a single diffused NPN silicon transistor in TO 3 case.
I built quite a few power amps in the 70's with RCA H_2N3055, but I have to say compared side by side with the epi devices, those amps were definitely short on high frequency response, so this is probably where the "don't use 2N3055's" originated, which I think also is echoed in Self's book. I've reported a spot measurement of fhfe for an ON Semi and ST devices which were over 50 kHz, so they perform a lot better than the old hometaxial RCA transistors. Details about Two Furnas Oil Tight Indicator Lights 52PX4G 120V Various Colors 2, GE TED134030. The BD139/140 devices have better fT than MJE340/350 and higher gain at higher current. 2N3055 Power Transistor Motorola 5x Pcs for sale online.
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If you trawl through the various threads here, I have recommended BD139/BD140 drivers with a BD139 bias stabiliser all on the same heatsink and obtained very good quiescent current thermal stability. Some later RCA transistors were fast epi types too. The ON Semi devices have good SOA in their latest data sheets.
I think you can build a good amp using 2N3055/MJ2955. 2018 store 10pcs 2N3055 NPN AF Amp Audio Power Transistor 15A Top sale 20SBLXX HY cheap sale outlet.