Re: Looking to build RF detector probe for low frequency
The was the one designed by RF Haigh in Radio Bygones No 83, back in June/July 2003 as a follow-up to the Wobbulator which featured in the preceding issue. The probe was built on a small PCB and housed in a small plastic probe box 2.5cms square x 12cms long, along with a PP3 battery and two slide switches - one for on/off. the other for high/low sensitivity. All a bit of a tight squeeze in the box.
The article ran to five pages - I've attached page one, which shows the circuit and may enable you to decide if the design would meet your needs.
Hope that may be of interest.
__________________
David.
BVWS Member.
G-QRP Club member 1339.
Last edited by David G4EBT; 2nd Feb 2019 at 5:10 pm.
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