Author Topic: Induction loop receiver  (Read 1098 times)

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Offline vk3yedotcomTopic starter

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Induction loop receiver
« on: June 05, 2019, 08:47:05 pm »
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/
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Offline mikerj

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Re: Induction loop receiver
« Reply #1 on: June 06, 2019, 10:44:14 am »
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?
 

Offline vk3yedotcomTopic starter

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Re: Induction loop receiver
« Reply #2 on: June 06, 2019, 01:04:14 pm »
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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