Ceramic Strips

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Tube-era Tektronix instruments use ceramic strips with metallized grooves to hold components and wiring.

The production method is discussed in US Patent #3,121,020.

Tektronix warned that these strips should only be soldered with silver-bearing solder because

«Repeated soldering with ordinary solder may weaken the silver-to-ceramic bond.»

Early instruments often contained a small spool of solder inside the cabinet.

Today, some solder types containing silver, e.g. Sn62Pb36Ag2, are still available.

Competitors like Lavoie used less sensitive tin-plated steel inserts that can be soldered with ordinary solder.

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