WARNING: No user serviceable parts inside. Refer servicing to qualified personnel only
Super Space Tone 30 Tube Layout and ID
V1 - 12AX7 First Stage Preamp Tube
V2 - 12AX7 Second Stage Preamp Tube / Tone Circuit
V3 - 12DW7 Reverb Driver / Reverb Return
V4 - 12AX7 Tremolo / Driver
V5 - 6V6 Power Tube
V6 - 6V6 Power Tube **EL-34
(1)
V7 - 6V6 Power Tube **EL-34
(2)
V8 - 6V6 Power Tube
V9 – 5AR4/5Y3 Rectifier Tube
(Use 5AR4/GZ34 for more headroom and less sag)
Your Super 30 comes supplied with a matched quad of Electro-Harmonix 6V6GT, three JJ
12AX7, one JJ 12DW7, and a JJ GZ-34S for rectification. I have tried most of the latest tubes
from manufacturers and can say these represent our choices in current production for the Super
30. Of course, there is always the draw of the tone/sonics you can obtain from NOS alternatives (I
admit, the ST-6V6se can be transformed). Indeed, some of the best of the breed can really bring
satisfying results. Unfortunately, there are a number of circumspect tubes floating around on
eBay and the net. It’s also hard to achieve proper matching of the power tubes and many NOS
can be extremely microphonic. For this reason, we fully endorse the use of the supplied brands.
**
If subbing EL-34, use only TWO in V6 & V7 (two center power tube sockets) for your Power
Output tubes. V5 &V8 remain empty. Do not run four EL-34. Running two EL-34 brings a bit of
added top-end extension along with a bit more drive/relative volume. You do lose a bit of the 6V6
quad vintage soul, but the amp takes on a slightly more modern British flair. We’ve tried JJ EL-
34 with good results.
