Here is a 1960’s Matched Pair of RCA EL84’s (6BQ5). These test very strong on the Hickok 600A where a rating of 5500 micromhos is the lowest acceptable value and a typical new/old stock result is 9500.
Tube 1: 11,500 micromhos / plate current 16.2 mA
Tube 2: 11,500 micromhos / plate current 16.0 mA
$80.00
