Matched pair: RCA 6ES8 / ECC189 vacuum tubes - made by Mullard retailer - new old stock - excellent condition, Matched pair: RCA 6ES8 / ECC189 vacuum tubes - made by Mullard - new old stock - excellent condition offers
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$45.50
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Matched pair: RCA 6ES8 / ECC189 vacuum tubes - made by Mullard retailer - new old stock - excellent condition, matched pair: RCA 6ES8 / ECC189 vacuum tubenew old stock - mint conditionoriginal boxesmanufactured by Mullardmatched.
matched pair: retailer RCA 6ES8 / ECC189 vacuum tube
new old stock - mint condition
original boxes
manufactured by Mullard
matched gm
tested on a Hickok KS 15874-L2