SKU:58685228272
2 US-Made Number Type 78 #78 Vacuum Tubes Valves Engraved Hot-Stamped Base Mesh Plate Lot Of Two NOS-Testing
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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Description
2 US-Made Number Type 78 #78 Vacuum Tubes Valves Engraved Hot-Stamped Base Mesh Plate Lot Of Two NOS-TestingThese lot of two mesh plate, engraved base number 78 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 55 and 65 where minimum is (65%) is 36 and 100% is 55. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU
I LISTEN TO THESE TUBES IN TUBE EQUIPMENT
Transconductance readings are 44
Tube One: 20
hydrofluoric acid-etched GE provenance dots and excellent flashing
It was made in South Korea
This matched pair of Tung-Sol 6C6 tubes tested 43 and 44
(New US-made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so
2 hertz vibrasender / vibrasponder appears fresh and new
They were dead quiet when the preamp was muted and had excellent frequency response
clear bottles and bottom
new in box Super Silvertone 50L6GT rectifier tube tested to spec on our Paul Hart-calibrated TV7/U
new in box RCA 19T8 tube tested to spec on our Paul Hart-calibrated TV7/U
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