Problem: Add spaces: Hedidn'tdiscoveruntilthenextmorningthatthewhimsicalremarkwouldproveforetelling.

Spaces added: He didn't discover until the next morning that the whimsical remark would prove foretelling.

Problem: Add spaces: Highlightedproperties-tarzo-treviso

Spaces added: Highlighted properties - tarzo - treviso

Problem: Add spaces: Voltagedurability5550Vrmsacfor1minute,betweenvoltageinputterminals,voltageinputterminalsandcurrentprobes,andvoltageinputterminalsandcase(50/60Hz,1mAsensecurrent)

Spaces added: Voltage durability 5550 V rms ac for 1 minute, between voltage input terminals, voltage input terminals and current probes, and voltage input terminals and case (50/60 Hz, 1 mA sense current)

Problem: Add spaces: Photo:PostcardfromJohnByrne'scollection

Spaces added:
Photo: Postcard from John Byrne's collection