In a preferred implementation, a solder alloy consisting essentially of tin {HEAD ~ 96.5%} to {TAIL ~ silver} 3.5% with a melting point of about 221° C. is used to attach disks 10 to AGA 50 at solder joints 55 
to
In a preferred implementation , a solder alloy consisting essentially of tin { HEAD ~ 96.5 % } to { TAIL ~ silver } 3.5 % with a melting point of about 221 ° C. is used to attach disks 10 to AGA 50 at solder joints 55
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH