RCA EL84's NOS Testing

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