Here is a simple VLF receiver. I don’t know how well it works because I don’t go out into the middle of no where very often. You haft to be about 15 km from any power lines or well traveled road. The best time to listen is at twilight or night time. For the JFET I use a NTE451. VLF listening is a new hobby of mine. A 10’ antenna is about best.
__
\|/
|.......................low current
|...........................JFET
| 47pF...........|------>>-
|-| |--|---|->|.........amp.
| 47pF|.....\...|--|..|->>-
|-| |--|4M /.......|..|
| 47pF|.....\.......|..|
|-| |--|..../.......|..|
| 47pF..... \.......|..|
|-| |----|-------|--|
(I hade to use .s so it wold work.
Important Information
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.
The Quick and Easy Experiments thread.
in Experiments
Here is a simple VLF receiver. I don’t know how well it works because I don’t go out into the middle of no where very often. You haft to be about 15 km from any power lines or well traveled road. The best time to listen is at twilight or night time. For the JFET I use a NTE451. VLF listening is a new hobby of mine. A 10’ antenna is about best.
__
\|/
|.......................low current
|...........................JFET
| 47pF...........|------>>-
|-| |--|---|->|.........amp.
| 47pF|.....\...|--|..|->>-
|-| |--|4M /.......|..|
| 47pF|.....\.......|..|
|-| |--|..../.......|..|
| 47pF..... \.......|..|
|-| |----|-------|--|
(I hade to use .s so it wold work.