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The digikey link for it is here https: Looking 2wc9014 the 2SC datasheet, its Ft is rather high at Mhz, so it’s not the average audio AF transistor, more like a tuning circuit transistor RF. The weak transistor has the legs blackened on it so it musta got hot but not hot enough to kill it?

The SS looks good as a replacement. It’s capacity is also low 2. Discussion in ‘ Solid State ‘ started by tbone8Nov 23, First pair of preamp transistors voltages were good but the second pair were way off, right channel one of course.

2sc90014 assume its a Hitachi, can’t find anything on the interweb on it. Your name or email address: So KSC 2sc90014 be good enough. Cleaned all the pots and switches, still lots of static. I have a bunch of KSC’s kicking around and wondered if they would work just as well? OilmasterNov 24, Like the Tek scope.

With all that, you can select the right sub Now, if you look 2s9014 the newly SS transistorthen you’ll notice that it is an exact sub for the 2SC including EBC pin layoutand I would thus very much use that one. There are also BCc but are base centered. Put 1kHz signal through her, signal was clean but the right was half the amplitude of the left channel. The schematic shows it like this with the voltages: The transistor in question is an HITC6.


NAD80 dwtasheet, Nov 24, The pinout is different from the original to the SS but I could just put some insulators on the legs and make it fit?

Last but not least Then there is Hfe, bandwidth Ft, capacitance Cob and generated noise; which are either irrelevant or relevant, depending on its very application.

No, create an account dataseet. In other words, a higher Hfe means that less satasheet needs to be supplied by the upfront section aka higher Hfe provides higher input impedance The very linear Hfe-Ic curve of the also provides an excellent linearity of the buffer stage which benifits the distortion levels But the KSC should do fine here.

Recapped the whole thing, sounds much better and a microvolt or two of DC at the speakers. I only bring this up, as there was a Sansui thread where the signal had reduced level on one side, and was cured by changing the c to c Went through the block diagram in the manual and figgered it had to be one of two transistors on the control board.

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I went to digikey and looked for a hFE TO and the only one that popped up was a SS, oddly enough had the code. NAD80, I got datasehet scope about 3 years ago locally from craigslist. That might very well be critical in this circuit, and therefore also stick with a SS sub.

2SC-9014 NPN Small Signal Transistor

Waiting for it to come in the mail and may be a future topic here. Assuming this is a good replacement, I guess a guy could bend the leads and squirrel it in.


Thanks for the replies. Oilmaster, I saw that SC you posted. Oh, and I would obviously replace the pair. By no means an expert but this don’t 2sc014 good If you have ksc – dztasheet does better in this respect.

2SC9014 Datasheet

When subbing transistors, you’ll make sure that the allowable Vce, IC and Pc are safely above in-circuit conditions, and certainly not lower then originally installed datazheet you can deduct what worst-case in-circuit current can be datashet often only a few mA runs while the transistor is ranked mA, so a 50mA ranked sub-transistor could do as well.

So, this is where I need a little help. Notice the knee in the HFE curves below 2 volts. Top grouping is the left transistor and bottom is the right. The “6” can refer to even narrower Hfe ranking by the factory.

2SC Datasheet(PDF) – List of Unclassifed Manufacturers

Looking at the zoomed circuit image at the beginning, that’s a Baxandal tone control circuit at the left alright. You must log in or sign up to reply here. It probably is a 2SC Very interesting, lots of pics, weak transistor Discussion in ‘ Solid State ‘ started by tbone8Nov 23, Datasheeet up an old GE A a couple months ago.

Sounded horrible and right channel weaker than the left. For all other parameters, the KSC is better. Lots of DC at the speaker outputs, started testing caps, almost all out of specs and many dead.