Aristaeus / Orpheus Tube Set ECL86 + ECC83 HE90 HEV90
A Full set of vacuum tubes for use with the Headamp Aristaeus or the Sennheiser Orpheus HEV90 Electrostatic Headphone Amp. These tubes were Tested on aTV-7D/U and Tested at NOS levels. They have been screened in the Headamp Aristaeus for noise and microphonics.
4 matched 1961 Amperex Bugle Boy ECL86 / 6GW8:
WS3 <1L1 53\41 Bugle Boy label, Dec. 1961
WS3 <1L1 48\41 Bugle Boy label, Dec. 1961
WS3 <1L1 52\44...