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</head><body><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">So the overdrive worked great on the day after I adjusted the linkage. The next day, slipped in and out. Fluid is topped off and am using Redline MT-90 per all recommendations. The fuse is NOT blown, but when I test, I get no clunk of engagement nor snap from disengagement. I've checked and rechecked all the wires leading in the system. Joints are soldered, solid and insulated (shrink tubing). </span><br></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Except.<br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">The relay. I didn't even know I had one. Leastwise, I'd forgotten since I first wired the thing a dozen years ago. <br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Relays are simple mechanisms. Looks like a resister, maybe a diode in there. But diodes blow and resisters can die. <br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Just curious, though. It's been 50 years since I was working on comm/nav electronics on F4-Phantom jets so am not clueless, but definitely rusty, about electronics. Are simple relays more or less bullet-proof, or do they have some sort of reputation I'm not aware of....????<br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Thank you, everyone,<br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Terry Smith, '59 TR3A, A-Type OD, TS 58667<br></span></p><p><span style="color: rgb(51, 51, 51); font-family: helvetica,arial,sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">New Hampshire<br></span></p></body></html>