Tech Talk

Crystal Earpiece.
« Back · 1 · Next »
Return to top of page · Post #: 1 · Written at 5:46:52 PM on 15 August 2015.
	Labrat Location: Penrith, NSW Member since 7 April 2012 Member #: 1128 Postcount: 373
How does one test a Crystal Earpiece? I suspect the one on a a crystal radio I bough is faulty. Could it be as easy as hooking it up to an audio oscillator with a 600 ohm output impedance? Wayne.

Return to top of page · Post #: 2 · Written at 11:59:07 PM on 15 August 2015.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
It could be as easy as wiping the probes of an analogue ohm meter across the terminals, similar with a a battery & all with it not in your ear at the time. Listen for the "crackle" If you have a transistor radio with an earplug socket that is compatible, that can also work well as a tester. Marc

Return to top of page · Post #: 3 · Written at 1:03:04 PM on 21 August 2015.
	Art Location: Somewhere, USA Member since 22 October 2013 Member #: 1437 Postcount: 896
Put it in your ear in your bedroom and hold the sleeve while walking to the kitchen, and touch the tip to an earthed metal appliance

« Back · 1 · Next »
You need to be a member to post comments on this forum.

Sign In