Matched pair: RCA 6ES8 / ECC189 vacuum good tubes - made by Mullard - new old stock - excellent condition
Matched pair: RCA 6ES8 / ECC189 vacuum good tubes - made by Mullard - new old stock - excellent condition, matched pair: RCA 6ES8 / ECC189 vacuum tubenew old stock - mint conditionoriginal boxesmanufactured by Mullardmatched.
Product code: Matched pair: RCA 6ES8 / ECC189 vacuum good tubes - made by Mullard - new old stock - excellent condition
matched pair: RCA 6ES8 / ECC189 vacuum tube
new old stock - mint condition
original boxes
manufactured by Mullard
matched gm
tested on a Hickok KS 15874-L2 good