OA3 Sovtek

Electro-Harmonix is your go-to source for odd-ball and hard-to-find tubes.

Shipping & Returns

Free U.S. ground shipping on orders $150+. Learn more

Return or exchange your purchase for any reason within 30 days of receipt. Learn more

Electro-Harmonix is your go-to source for odd-ball and hard-to-find tubes.

Free U.S. ground shipping
 on orders $150+.

Easy returns & exchanges
 within 30 days of receipt.

Get support from
 our expert gear advisors.