Don't spend a lot of calories on this--Bob Dobush has 6N6s for $7 used / $12 new. (6AB6 is a different story--2 of my suppliers don't list it--I found one new one for $35)
_________________ -Mark "Measure voltage, but THINK current." --anon.
Joined: Jan Thu 01, 1970 1:00 am Posts: 37615 Location: Livermore, CA
Use 6V6, 6K6 or 6F6 tubes. When you do this lift connection to pin #8 and add a 470 ohm resistor in series with this wire. Best if you also connect a 10 - 25mf @ 50 volt cap across the resistor. You can use the radio with any of these tubes if you don't have a 6N6.
Advantage of 6N6, didn't require the above bias components.
