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