Electronics > Projects, Designs, and Technical Stuff

Induction loop receiver

(1/1)

vk3yedotcom:
A quick project I knocked up.

Apologies for the audio - might have been overdriving the camera.

The sensor is a strobe trigger transformer from Jaycar (suggested by an article in Silicon Chip - there was a kit but apparently discontinued)



Inspired by http://www.techlib.com/electronics/induction.html & https://goughlui.com/2014/10/04/project-audio-induction-loop-receiver-part-1/

mikerj:
Really interesting, guess hearing aid users must quickly learn to disable inductive pickup when on trains!  How far away can you pick up overhead power distribution cables?

vk3yedotcom:
Pretty much everywhere you go there's hum from power lines and in the street. Would be interesting to take it outside the suburbs.

I think that proper hearing aids have AGC. Also I think my unit may have slightly excessive gain.

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