
( Brand: Sylvania ), ( Type: 6x4 ), ( Country/region Of Manufacture: United States )
Sylvania nos nib 6x4 vacuum tube an offer for a single new in original box Sylvania made emerson branded 6x4. Very good with 6v6s and el84s, this tester falls a bit short of true operating levels on 6550s, el34s, 5881s and 7027s.
I do not trust the minimums on this tester and they are therefore not listed.
The triplet 3444 tests rectifiers on a good bad scale so there are no numbers to list. Exceptional in every aspect.
Combine offers and save on shipping.
Fine print only place a bid when you are seriously interested in this particular piece and when you are truly willing to fulfill all the obligations according to rules. Bulk lot tubes will not be individually boxed.
Tube carefully tested for emissions rectifiers, shorts, gas, life and leakage on 2 world class testers. Exclusively for shipping.
All of my testers except maxi have been calibrated and redone by Chris hated. The maxi marcher is a useful tester for measuring current draw and trans conductance at plate volts with 5 bias voltage settings. Photo is of the actual tubes on offer fully guaranteed.
Still much better than most suitcase testers for measuring power pent odes.
Canada free. Shipping us. Tube is a 1950s production tube with black plates and bent getter. I use the us.
Superb with directly heated tirades. In my opinion, and the opinion of many tester experts, this is the best tester that was made by Hickok.
No tube is sold that has any gas, leakage or fails life and strength tests. Money back on these tubes if they do not operate and test as described.
Tubes are shipped upright, in oversized boxes with packing peanuts and bubble wrap. The triplet 3444 is one of the finest testers ever made.