Transistor Substitute?

Starbender · Apr 20, 2014

I'm working on GX-260D. I made a silly mistake and shorted 2SC1013 transistor on the power supply. I'm digging datasheets but cannot find any info about this old transistor.
Anyone knows any replacement for this one?

jan_stevns · Apr 20, 2014

Starbender said:
I'm working on GX-260D. I made a silly mistake and shorted 2SC1013 transistor on the power supply. I'm digging datasheets but cannot find any info about this old transistor.
Anyone knows any replacement for this one?

There is plenty information about this transistor

http://alltransistors.com/transistor.php?transistor=11314

Starbender · Apr 20, 2014

I read that page. But i couldn't find info about pin layout. Is this sc1013 ECB or CBE? Old one is shorted. I cannot check for pin layout. Can i use fairchild ksc2690?

jan_stevns · Apr 20, 2014

Starbender said:
I read that page. But i couldn't find info about pin layout. Is this sc1013 ECB or CBE? Old one is shorted. I cannot check for pin layout. Can i use fairchild ksc2690?

I can't remember anymore - in the powersupply the emitter is connected to a 1Ohm fusible resistor, and the base is connected to a zener diode AND a resistor

so you should be able to figure the pin's out

We used to replace the entire circuitry with a 7824 regulator back then !

just mount a 7824 and short the zener diode ! AS FAR AS I REMEMBER

(no refunds available if it blows up in your face though)

EDIT: Most AKAI's are using 24volt regulated powersupply, and on the 260 series, the transistor was on a "isolated" heatsink, therefore the 7824 trick was usefull, but do make sure you can locate the zenerdiode !

petehall347 · Apr 20, 2014

jan_stevns said:
just mount a 7824 and short the zener diode !

only 1 problem i see is r2 and or r3 will go up in smoke so either one will need removing :scratch2:
to be fair r3 is likely to burn first

Starbender · Apr 20, 2014

jan_stevns said:
I can't remember anymore - in the powersupply the emitter is connected to a 1Ohm fusible resistor, and the base is connected to a zener diode AND a resistor

so you should be able to figure the pin's out

In fact, i figure it out pin layout from SM. But i had to hear experts opinions

I made lots of mistakes in the past, mostly silly ones. Thanks for your suggestion. Appreciated!

jan_stevns · Apr 20, 2014

petehall347 said:
only 1 problem i see is r2 and or r3 will go up in smoke so either one will need removing :scratch2:
to be fair r3 is likely to burn first

R3 might blow - then the problem is solved

(resistors rarely shorts !)

You're correct - cut one end !

Bly me - it's way back

jan_stevns · Apr 20, 2014

Starbender said:
I made lots of mistakes in the past, mostly silly ones.

You're definitively not alone !

:thmbsp:

The Fuxtor · Oct 14, 2021

Starbender said:
I'm working on GX-260D. I made a silly mistake and shorted 2SC1013 transistor on the power supply. I'm digging datasheets but cannot find any info about this old transistor.
Anyone knows any replacement for this one?

Did you ever find a good replacement?

Starbender · Oct 14, 2021

I can't remember what I used. Long time passed since.
I'll try to move it from storage and check.

dhnash · Oct 14, 2021

“Original” 2SC1013 transistors are available:

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=2SC1013&_sacat=0

A list of possible substitutes is shown here:

https://alltransistors.com/crsearch...&uce=20&ueb=5&ic=1.5&tj=125&hfe=40&caps=TO218

Transistor Substitute?

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