Looking through my stock of TO3 power transistors I found several marked RCA 52360. No results using the databases at the foot of the page, websearch comes up with one ebay auction which doesn't give data.
Anyone have data on these?
This is dated 1978 the same as your 52360, I have not had chance to look through it all.
https://ia600903.us.archive.org/1/items/RcaPowerDevicesDataBook1978/RcaPowerDevicesDataBook1978.pdf
Frank
Doesn't seem to be listed.
Oh well, worth a try, probably worth keeping as a pdf for future reference.
Perhaps the 52360 was a special.
Frank
This site https://vetco.net/products/2n3055-npn-si-transistor-60v-15a-nte130 gives a list of near equivalents.
Difficult to judge how accurate it is though, given the number of equivalents...
Jac
I have a possible suggestion as to why you cannot find these RCA devices.
Many years ago, I was working on a BIG audio amplifier (2.4kW), with dozens of Motorola MJ15022 and MJ15123 output devices in the output stage.
Quite a few had shorted, and after replacing these and numerous small transistors and resistors, I ran the unit up on a variac. Everything was fine for a minute and then the quiescent current started to climb. I quickly switched it off, and spent a fruitless couple of hours trying to find what I had missed. I had repaired many of these units in past, and I had occasionally had obscure faults like this.
Not finding anything, I waited until late in the afternoon, and rung the overseas manufacturer. He explained that about eight years ago, Motorola substantially changed the base and emitter configuration of these devices, and unless I had old devices with the older date codes, they would not work. Newer date code devices give the rising quiescent current problem. The answer was to fit only the obscure part number devices which they themselves supplied, made specially by Motorola with the old die.
I had no further stocks of the old date code devices, and so I had to place an order for these specials.
A couple of days later, a package arrived with devices with an obscure Motorola part number on them; and these worked fine. The amplifier then set up perfectly, and passed all its specified operating parameters.
Like you, I have never found these devices listed anywhere.
Regards.
Kevin
I have a possible suggestion as to why you cannot find these RCA devices.
Many years ago, I was working on a BIG audio amplifier (2.4kW), with dozens of Motorola MJ15022 and MJ15123 output devices in the output stage.
Quite a few had shorted, and after replacing these and numerous small transistors and resistors, I ran the unit up on a variac. Everything was fine for a minute and then the quiescent current started to climb. I quickly switched it off, and spent a fruitless couple of hours trying to find what I had missed. I had repaired many of these units in past, and I had occasionally had obscure faults like this.
Not finding anything, I waited until late in the afternoon, and rung the overseas manufacturer. He explained that about eight years ago, Motorola substantially changed the base and emitter configuration of these devices, and unless I had old devices with the older date codes, they would not work. Newer date code devices give the rising quiescent current problem. The answer was to fit only the obscure part number devices which they themselves supplied, made specially by Motorola with the old die.
I had no further stocks of the old date code devices, and so I had to place an order for these specials.
A couple of days later, a package arrived with devices with an obscure Motorola part number on them; and these worked fine. The amplifier then set up perfectly, and passed all its specified operating parameters.
Like you, I have never found these devices listed anywhere.
Regards.
Kevin
Anyone remember the "special" BUT11A for Hitachi's, that had higher HFe?
I don’t remember the BUT11A, perhaps they were after my time in the trade, I don’t remember changing many if any transistors in Hitachi TV’s.
Frank
