10-07-2020, 07:47 PM
The values you use seem OK to me. I doubt raising capacitance to 0.01uF would make much difference: the impedance of the tube's input is very high compared to maybe 10kOhm at the low frequencies and 3kOhm at about mid-frequencies.
See if your iPod's output is sufficiently high (should be).
Or you could possibly see if your radio does achieve sufficient loudness as a radio what AC amplitude you develop at the 27's input (detector output) and, should it prove much higher than the iPod's, then you know what the problem is.
See if your iPod's output is sufficiently high (should be).
Or you could possibly see if your radio does achieve sufficient loudness as a radio what AC amplitude you develop at the 27's input (detector output) and, should it prove much higher than the iPod's, then you know what the problem is.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
