

| Electro Harmonix 6550 |
| Sales & Customer Service 1 - 888 - 329 -1337 |

| Shuguang GE 6550 |

| Tung Sol 6550 |

| Winged "C" 6550 |

| Shuguang KT88-98 |

| Shuguang "Black Bottle" KT88-Z |

| Electro Harmonix KT88 |


| Ming Da KT90 |
