Up for sale, single tube - EC900 - premium quality, low noise and low microphony
Substitute for 6HA5 * 6HM5 *
Made by EI (Elektronska Industrija) - former Yugoslavia
NOTE: Ei was major supplier to many different tube manufacturers such as Philips, Telefunken, Siemens, Sylvania, GE, RCA, Mullard (among others). Upon the purchase, tubes would be branded and printed as per buyer specification. That is the reason why the tubes are without print.
Long lifespan - Low noise
BRAND NEW - TESTED - comes from bulk box so no individual packing
What you see is what you get
Please note: The item is located in Belgrade - Serbia and will be shipped via Air Mail