EQ / Preamp (High-voltage valve preamp (12AX7/ECC83)) · $499
The Himmelstrutz Fetto AX7 is an analog high-voltage valve preamp (12AX7/ECC83) pedal based on the 12AX7/ECC83 valve preamp with selectable bias; accepts ECC81/12AT7 or DIME-X transistor, made in Sweden. From $499.
| Category | EQ / Preamp (High-voltage valve preamp (12AX7/ECC83)) |
| Circuit / based on | 12AX7/ECC83 valve preamp with selectable bias; accepts ECC81/12AT7 or DIME-X transistor |
| Signal | Analog |
| Switches | Bias switch (3-position: 400V / 200V / 200V with treble reduction) |
| Footswitches | 2 (Drive, Boost) |
| Country of manufacture | Sweden |