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6AB4 GE 4 radio audio amplifier electron vintage vacuum tubes valve tested EC92
6AB4 GE 4 radio audio amplifier electron vintage vacuum tubes valve tested EC92
6AB4 GE NOS Vacuum Tube, Triplett 3444 Tested – will combine shipping
New Triplett chart = 2600 & 4000 micromhos. Vacuum Tube. sections of a single tube. Within 3% I consider to be ‘Balanced’. Gray Plate. GM Tested at 4200 micromhos. Each is tested for emission, dynamic mutual conductance, shorts, & gas as applicable.
Tightly Matched Pair 6AB4 GE NOS Vacuum Tubes, Triplett 3444 Test – will combine
New Triplett chart = 2600 & 4000 micromhos. Tightly Matched. ‘Tightly Matched’ I consider to be within 2%. Vacuum Tubes. ‘Matched’ I consider to be within 10%. ‘Closely Matched’ I consider to be within about 5%.
Lot Of 5: CEI Delco DeForestron Selectron 6AB4 Vacuum Tube – NOS Tu1/19/28
The product is a lot of 5 CEI Delco DeForester Selectron 6AB4 vacuum tubes, which are considered new old stock (NOS). These vintage vacuum tubes are designed for use in vintage audio and video equipment, providing a piece of nostalgia for collectors or enthusiasts. The 6AB4 model is known for its quality construction and performance, making it a sought-after item in the vintage electronics market. Each tube is tested for functionality and is sure to add a touch of retro charm to any vintage audio setup.