2SC1312 Data

[Clark Leach]

Sorry to be a pest but I don't know of a better place to get answers.

The SX-850 BOM shows two SC1312-F in the Tone Amp and one 2SC1312-G in the Tuner.
I cannot find a datasheet for this part, so have no idea the difference in hfe ranges.
Is the KSC1845F is suitable in both circuits?
Does the pair in the Tone Amp need to be gain matched?

 

[Hyperion]

This should get you started.

https://alltransistors.com/transistor.php?transistor=11734

(The letters after the type numbers usually refer to gain groups).

 

[markthefixer]

Q1, Q2 in tone amp don't need gain match, they're different channels.

the c1845 is suitable for all

the Q10 tuner transistor is switching on and off a muting function, it can function fine with relaxed gain.

 

[Clark Leach]

This should get you started.

https://alltransistors.com/transistor.php?transistor=11734

(The letters after the type numbers usually refer to gain groups).

I've been there. No datasheet...

 

[Clark Leach]

Q1, Q2 in tone amp don't need gain match, they're different channels.

It won't throw the balance off if not matched?

 

[markthefixer]

It won't throw the balance off if not matched?

By design, no.

 

[Clark Leach]

By design, no.

I'd like to know more about that. On the other hand, my brain already hurts a little. Yeah, nah.
I pick things up and put things down.