6211 ARCTURUS. USA preamp. Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160. 1MP 5687 RCA NOS Top D getter made in U.S.A Amplitrex Tested #2288002&8. 6550 Tung-Sol NOS Triple O getter made in U.S.A Amplitrex tested #623005.
Item Tag: ARCTURUS 6211
6211 ARCTURUS nos tube UNited States preamp test strong balanced 2 Pcs
6211 ARCTURUS. USA preamp. Up for sale 1 Pair 2 Pcs. Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160. We specialized in thoroughly tested and screened quality, vacuum tubes.