A few folks have asked. The multimeter set on the left is an A.R.C.-made receiver tester. The one in the middle is an I-85 for SCR-274N transmitters. The one on the right is for AN/ARC-5 transmitters with the MD-7. -------------- When you're serious about working on Command Sets: https://photos.app.goo.gl/rTjQqRVAVZkMd4cp1 73 OM DE Dave AB5S