3 RCA 6B8 VT-93 Milspec Vacuum Tubes Valves Lot Of Three New Songs LP 1986

3 RCA 6B8 VT-93 Milspec Vacuum Tubes Valves Lot Of Three New Songs LP 1986This lot of three RCA Milspec 6B8 VT 93 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas, emissions and transconductance. There were no shorts or gas and they tested as follows: Tube one measured 45 in its triode section where minimum (65%) is 29 and 100% is 45. Its diodes measured 33 and 66, respectively, where minimum (65%) is 40 40 and 100% is 61 61. Tube Two (triode): 50 Tube Two (diodes): 71 53 Tube Three (triode): 51 Tube Three

It took two adapters but was worth it as they sounded fine in my Mini 2013

This new old stock-testing matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7 for shorts

This matched-pair of GE 6AU6A tubes was tested on our Paul Hart-calibrated TV7/U tube tester for shorts

48 and 49 where minimum (65%) is 25

They measured 27 and 28 where minimum (65%) is 22 and 100% is 40

This lot of three Ken-Rad-MANUFACTURED 2A5G tubes tested 55

where minimum (65%) is 50/50 and 100% is 77/77

These nine Sylvania 6AU6 / 6AU6A were tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 56 for Tube One and 57 for Tube Two where minimum (65%) is 40

The spine is in fine shape with no loose pages and APPEARS to be leather-bound

The spine is in fine shape with no loose pages

This Cunningham narrow bottle 25Z5 tube was tested on our Paul Hart-calibrated TV7/U for emissions