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Title: Mercury wetted relays and Mercury contactors very inexpensive Post by: Opcom on February 17, 2022, 09:22:12 AM No pecuniary interest in any of these, just found the prices attractive after being high for about a year. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
On ebay lot of 25 pcs NOS mercury wetted reed relay for $35. https://www.ebay.com/itm/264947307881 Pretty much giving them away. coil 12VDC Contact 1000V 2A MTBF 2000x10^4 cycles (@1V/10mA) CP Clare CUPP001A512 Mercury wetted reed relays are excellent for signals in tube equipment where CMOS switches can't handle high voltages. The contacts never tarnish so even tiny signals come right through and are without the electrical noise that dry contacts often make opening and closing. ============================================ Large Mercury contactors handling many tens of amperes @ 120/240/600VAC. Never burn a plate relay again. Ya just can't have too many of them! A 30A 600V double pole unit is $16. The ebay search finds these big contactors: https://www.ebay.com/sch/i.html?_from=R40&_nkw=mercury%2B%28contactor%2Crelay%2Cwetted%29%2B%2810A%2C15A%2C20A%2C25A%2C30A%2C40A%2C50A%2C60A%2C70A%2C75A%2C90A%2C100A%29&_sacat=0&LH_TitleDesc=0&_sop=15 |