RAIDO-FREQUENCY-AMPLIFIER PENTODE. THIS SALE IS FOR ONE (1) TUBE, RANDOMLY SELECTED FROM MY INVENTORY. MAY BE USED OR NOS - TESTED VERY STRONG! TESTED ON AHEATHKIT TT-1. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.
Tested strong on our Seco 107 tester.
THIS SALE IS FOR ONE (1) TUBE, RANDOMLY SELECTED FROM MY INVENTORY. TESTED ON AHEATHKIT TT-1. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.
Iquickly screened the tubes on a Hickok 752A. All passed for nominal leakage/shorts and minimum mutual conductance (375 X4 scale). In fact, the vast majority were well over the minimum for mutuaI conductance.
All tubes show two date codes. One is a 1968 date of "68-06" and the other is 1970 date code of "70-30". They feature black plates and a disc getter. Audio Rectifier Tubes (5Y3, 5U4, GZ34, etc). Yes, it's that simple!
1 LOT OF 10 EACH JAN7586 NUVISTOR TRIODE TUBES NOS PRISTINE CONDITION original box ALL THE SAME 1981 DATE CODES FROM SAME LOT you get 10 tubes for this price any questions???? please ask
Tested strong on a sencore TC142 tube tester
Matched Pair Sylvania 6LB6 Beam Power Pentode Vacuum Tubes. Both test as NOS at 98 & 96 with 54 being the minimum score for a good tube (with 65% of life re maining).
Boxes might show wear from being in storage. Everything can be resolved without leaving a negative feed back. Call for technical specs.