THD BiValve 30 Class-A 30-watt amp head
Updated August 7, 2026
| Lot number | 835 |
| Auction | Guitar Amp & Drum Auction Frankston |
| Date | August 9, 2026 at 6:00 PM CDT |
| Auction house | SAS Auction Service Inc. |
| Location | Frankston, Texas |
This is a THD BiValve 30 Class-A 30-watt tube guitar amplifier head. The amplifier is designed to allow users to swap different octal power tubes and 12A-series preamp tubes without needing to re-bias the amp. Turns on. Not sure how to make sure it works.
Register & bid on this lot at Bidspirit →
