[sdiy] Mystery part.. probably a resistor ??

[Mike Bryant]

Where are these used on the chair ?   They are possibly reed relays operated by a magnet

________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Jean-Pierre Desrochers via Synth-diy <synth-diy at synth-diy.org>
Sent: 01 April 2026 21:49
To: synth-diy at synth-diy.org <synth-diy at synth-diy.org>
Subject: [sdiy] Mystery part.. probably a resistor ??


This is completely out of synth stuff but maybe you could help identify this part..



It is from a double electric reclining sofa.

It has 2 small controls PCB’s. One on each side holding 7 small limit switches
with 3 of these parts that look like resistors.

On the sofa’s left side

4 of the switches still work but the 3 others
do not operate their motor anymore.

The right side still works.

I desoldered the 3 parts which are the same

and measured them.

2 measured 270pf (burned open resistor ?)

And the other measures around 1.0 ohm.

They operate 29vdc motors.



What do you think ?



[cid:image005.jpg at 01DCC1F7.7CDE2B50]

[cid:image006.jpg at 01DCC1F7.7CDE2B50]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20260401/14e1e232/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image005.jpg
Type: image/jpeg
Size: 45243 bytes
Desc: image005.jpg
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20260401/14e1e232/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image006.jpg
Type: image/jpeg
Size: 42767 bytes
Desc: image006.jpg
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20260401/14e1e232/attachment-0001.jpg>