Matched Pair General Electric GE 6BL7 6BL7GTA Vacuum Tubes Valves NOS NIB May 16 2025

Matched Pair General Electric GE 6BL7 6BL7GTA Vacuum Tubes Valves NOS NIB May 16 2025This new old stock, new in box matched pair of GE 6BL7GTA dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 44 45 for Tube One and 45 45 for Tube Two where minimum (65%) is 25 25 and 100% is 38. 5 38. 5. They have O getters; copper support rods; great flashing and 63 48 188 5 and 64 13 188 5 factory date codes, respectively. I played them in my Alan

I just cleaned this four LP set on my VPI 16

2 for Tube Two

new in box National Union type 43 tubes tested to spec on our Paul Hart-calibrated TV7/U

OUR SHIPPING RESPONSIBILITY ENDS WHEN THE PARCEL IS ACCEPTED AND SCANNED BY THE US POSTAL SERVICE

280 739 and F1 date codes

EIA Factory Codes: RCA livery

new in box US-made number / type 89 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts or gas and transconductance measured as follows:

3 rather than 7

They sound terrific and have great bass with sparkling highs and Donald Fagan’s voice is warm and clear as a bell

These five new old stock

harp-shaped getters and anode radiators for cooler operation and longer tube life