UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

TonyDuell · 16th Oct 2019, 6:36 pm

I would think the metal disk is the common connection, the large annular metal part is the drive electrode and the little 'dot' in the middle is the feedback electrode.

I am not sure how you are going to make connections to it (soldering wires to the electodes can damage the piezo-stuff) but I'd try using the metal disk as one connection and the 2 electrodes joined together as the other one.

16th Oct 2019, 6:36 pm	#6
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,215	Re: Piezo element I would think the metal disk is the common connection, the large annular metal part is the drive electrode and the little 'dot' in the middle is the feedback electrode. I am not sure how you are going to make connections to it (soldering wires to the electodes can damage the piezo-stuff) but I'd try using the metal disk as one connection and the 2 electrodes joined together as the other one.