BT11 band gate module
Scientific Data Systems (SDS)
||Printed in white in extraction end corner on component face
||Assembly number printed in white in extraction end corner on component face
||On sticker at extraction end on component face
overall: 1/4 in x 4 1/4 in x 4 3/4 in
"Band Gate" is printed in white on the component side of the object. On the solder side there are four inspection stamps at the extraction end.
SAP Collection, Computer History Museum