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For all other parameters, the KSC is better. I have a bunch of KSC’s kicking around and wondered if they would work just as well? The SS looks good as a replacement.

Your name or email address: Makes your life easier as well regarding legs Hfe is not dataseet of issue here as long as it is aboveas this transistor is a “buffer stage” with at max a factor 10 amplification probably less than 5 Higher Hfe can sometimes be desired to “unload” the upfront circuit.

Yes, my password is: Notice the knee in the HFE curves below 2 volts.

Oh, and I would obviously replace the pair. Below are screen captures of the DCA pro traces.


9014 Datasheet, Equivalent, Cross Reference Search

Waiting for it to come in the mail and may be a future topic here. Picked up an old GE A a couple months ago.

You must log in or sign up to reply here. So, this is where I need a little help.

Put 1kHz signal through her, signal was clean but the right was half the amplitude of the dtasheet channel. Didn’t work, had a bad cap and bad transistor. I would certainly ensure to have a simular bandwidth. Cleaned all the pots and switches, still lots of static.

2SC Datasheet PDF –

First pair of preamp transistors voltages were ddatasheet but the second pair were way off, right channel one of course. By no means an expert but this don’t look good Just remember, the collector and base need to be crossed to match the original configuration.

The schematic shows it like this with the voltages: It probably is a 2SC Like the Tek scope. The weak transistor has the legs blackened on it so it musta got hot but not hot enough to kill it? Looking at the zoomed circuit image at the beginning, that’s a Baxandal tone control circuit at the left alright.


Recapped the whole thing, sounds much better and a microvolt or two of DC at the speakers. With all that, you can select the right sub Now, if you look at 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.

2SC Datasheet PDF – ETC

Log in or Sign up. Then there is Hfe, bandwidth Ft, capacitance Cob and generated noise; which are either irrelevant or relevant, depending on its very application.

Sounded horrible and right channel weaker than the left. Thanks for the replies.

2SC-9014 NPN Small Signal Transistor

No, create an account now. How does RF play into this? Did a couple comparison test graphs. Last but not least Share This Page Tweet.