the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the “TOSHIBA. ON CHARACTERISTICS. hFE(1). DC Current Gain*. (IC=mAdc, VCE=Vdc). VCE(sat). Collector-Emitter Saturation Voltage. MAXIMUM RATINGS: (TA=25°C unless otherwise noted). SYMBOL. UNITS. Collector-Base Voltage. VCBO. V. Collector-Emitter Voltage. VCEO. V.
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It is not a simple answer. But this doesn’t look like a transistor problem to me.
Ok guysit think the time has come torecap and restore cd I would only exchange them cause of their age and perhaps the noise level.
KaleJul 31, Yes, my password is: What a rare piece of gear. On cd 10 all of these ‘s and ‘s are line levelI don’t know if they need to have high gain. KaleJul 30, I don’t have the schematics neither the service manualso any proposals are welcome.
On the transistors front they have used 2sc 32pcsand 2sa another 32pcs. Now I am working on one Datassheet which has so much 2SC and in phono preamp I changed them by Toshiba 2SCBL because there it is very important get transistor which is ultra-low noise and high gain.
HyperionJul 30, Well there is oneit cuts bass output on the right channel22sc1815gr after a restart it works again.
2SC1815GR Datasheet, Equivalent, Cross Reference Search
The green bp of nichicon. No noise or mysterious symptoms. Overundr1Jul 30, Your name or email address: So the question here is what can I sub them with?
A pair of hotos. No, create an account now. On some places I leaved those 2sc, just checked them by semiconductor tester are they good and cleaned legs, because they were blackdatasheeet of them I would replace by 2SC where the high gain and ultra-low noise is not important… So there are no advice change them all with xy transistor….
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TRANSISTOR NPN 150MA 50V TO-92 – 2SC1815GRTE2FT
Along with the electrolytics. If anyone can get a hand on a service manual for this active crossover please do and send me a pm. In the raw among the others. I talked with a friend of mine and a techand he says they aren’t really linear transistors. Datssheet actually there is no trouble at all. Share This Page Tweet. Do you already have an account? You should find a service manual, and there you can find a data what is recommended hfe range for current transistor. Log in or Sign up. Yup, those 2sc1815tr have to go, little troublemakers that they are.
2SCGR in stock =
People I need a helping hand. Linear and low noise of course. That is the same transistor, but Mouser has only Y hfe classification which is hfe from toso if that is enough for replacing 2SC, that could be a good solution too! Ok KaleI see what you mean. Ok these are datasheett to find I suppose ,and will try the nichicon way of course.
So to sum it updo I go with ksc or ksc ? There are a couple of c After 41 years the crossover performs flawlessly.
I don’t have the service manual for CD 10 so I expect your proposals.