06-10-2026, 08:39 AM
As Rich said, the loop antenna is the front tuned circuit.
You could try to make a ferrite rod one, but then you need to experiment.
Or you could simply try to replicate the one that is missing. I am sure number of turns could be found somehow.
For example, here on our forum there was this thread.
https://philcoradio.com/phorum/showthread.php?tid=7816
Loop antenna for 46-420 Hippo
It has this link.
https://www.wa2ise.com/radios/12ba7.html#loop
See if this helps at all.
You could try to make a ferrite rod one, but then you need to experiment.
Or you could simply try to replicate the one that is missing. I am sure number of turns could be found somehow.
For example, here on our forum there was this thread.
https://philcoradio.com/phorum/showthread.php?tid=7816
Loop antenna for 46-420 Hippo
It has this link.
https://www.wa2ise.com/radios/12ba7.html#loop
See if this helps at all.
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 "[-]")
