‰ NOW 13 WPM ‰ TEXT IS FROM MAY 2019 QST PAGE 83 ‰ DIFFERENTIATING TAC KEYS ARE KNURLED PIVOT AND ADJUSTMENT SCREWS AND HEXAGONAL LOCKNUTS. OTHERWISE, THEY SHARE THE SAME CASTING AND COMPONENTS AS LATE PRODUCTION MACS. CHOOSING A STREAM KEY TODAY WHETHER MAC OR TAC, THE STREAM KEY IS A SOLID, SATISFYING KEY TO USE AND THERE ARE PLENTY STILL IN CIRCULATION TODAY. FOR THE CW OPERATOR LOOKING FOR ONE, ITS EASY TO RECOMMEND THE 1938 1939 CHROME ORIGINAL, AND MAC 200 OR 300 FROM 1940 1941. THEIR OVERALL QUALITY IS OUTSTANDING AND THEY PLAY EXTREMELY WELL WITH A ƒ QST DE W1AW ‰ LIGHT, POSITIVE TOUCH. POST 1941 MACS AND TACS HAVE THE SAME UNDERPINNINGS AS THOSE PRODUCED EARLIER. SOME MAY REQUIRE EXTRA ATTENTION IN TUNING BECAUSE OF HEXAGONAL LOCKNUTS AND OTHER HARDWARE VARIATIONS. BUT ONCE IN TRIM, THESE KEYS PERFORM ON PAR WITH THEIR EARLY VINTAGE COUNTERPARTS. IN BLIND COMPARISON, IT SHOULD BE DIFFICULT OR IMPOSSIBLE TO TELL THEM APART. STRAYS ROYAL SIGNALS AMATEUR RADIO SOCIETY CELEBRATES 100 YEARS IN 2020 ‰ END OF 13 WPM TEXT ‰ QST DE W1AW ƒ