Marshall branded ECC83 12AX7 Preamp Tubes

[losyboy23]

Pair of Marshall branded 12ax7 preamp tubes available if interested. Pulled from a Marshall DSL15H head. Sound and test great. $40 shipped

 

[lespaul6]

Do you know if these are Chinese or JJ's?

 

[kurtsstuff2003]

Do you know if these are Chinese or JJ's?

Looks to me like red lettered 1 a JJ and the other chinese

 

[losyboy23]

I'm not certain of either, sorry

 

[Rick Lee]

Per this link, the white one is Shuguang and the red one is JJ.
https://marshallforum.com/threads/stock-marshall-tube-codes.20734/

 

[losyboy23]

Available

 

[BesaMoogie]

JJ and Chinese 9th gen