(microphonic single) 12AT7 Philips Miniwatt made in Hamburg, Germany by VALVO NOS "D" getter halo 1959 (8.8/10.2ma)

1 microphonic tube) 12AT7 Philips Miniwatt made in Hamburg, Germany by VALVO NOS in white box "D" getter halo 1959 copper grid posts 

8.8ma Gm=5100

10.2ma Gm=5400

- Earmax Anniversary
- Lector
- Berning