Am in need of 2SK333-E or-F For SAE 202 Amplifier

[mr woofer]

High everyone I am in need looking to buy some 2SK333 Fets if available thanks for your time

 

[StevenOH]

https://www.ebay.com/itm/360473308082

2SK333-E =2SK223-E×2, 80V, (best offer).

FET's Idss (grade) need to be selected as close to the bias current as possible,
allowing for the expected signal current swing - for the lowest distortion.

 

[RM]

Can 2SK332 work? I have two used ones.

R

 

[mr woofer]

Thank you Steve and thank you RM have been under the weather just getting back in the swing of things. Thanks again Guys'

 

[EUVL]

2SK332 is rated at 40V, as opposed to 80V for 2SK333.
D grade also has lower Idss than E or F Grade.


Patrick

 

[RM]

I haven’t seen the schematic, but I just assumed it would be cascoded, the actual transistor being to small to withstand high voltage.

Maybe I was wrong.

R

 

[mr woofer]

Thanks Patrick & RM I appreciate your help!

 

[EUVL]

As far as I can tell, the device in post #2 is E grade.
And they are in the US.

Of course one can also use a matched pair of 2SK223E/F if space allows.

Schematics and service manual available at :
https://www.hifiengine.com/manual_library/sae/a202.shtml


Patrick