RCA Clear Top 6211 Vacuum Tube For Your Bottlehead February 10 2022 The TV7- tubes measured 60

The TV7- tubes measured 60

DB and CV batch codes

It has shiny 17MM black plates

Transconductance measured 44 and 48 where minimum (65%) is 35 and 100% is 54

It measured a nicely-balanced 52/50 where minimum (65%) is 40/40 and 100% is 62/62

RCA Clear Top 6211 Vacuum Tube For Your Bottlehead February 10 2022 The TV7- tubes measured 60This RCA clear top 6211 dual triode was tested on our Hickok 800 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 3200 3100 micromhos. (New 6211s typically test within one to 1. 5 standard deviations of 3600 micromhos like their 12AT7 cousins). It was also tested on our Maxi Preamp II (as a 12AT7) for shorts, gas, dynamic range, transconductance and gain. There were no shorts, noise or gas and it tests as