About: http://webisa.webdatacommons.org/21951211

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The workaround is to place all the parts other than the tube sockets on the bottom of the PCB; it is double-sided with plated-through holes after all.
http://www.w3.org/ns/prov#wasQuotedFrom	tubecad.com