Michael -
The ICOM relay is rated for 16V @ 0.5A.
The L-4/7 has about 30V @ 45 mA so exceeds the ICOM rating.
A simple transistor driver would be a better choice than another relay. There are commercial "buffer" devices offered for not much money. Cheap insurance! Lots rather replace a transistor in an external box than a relay inside the 756!
73, Garey - K4OAH Atlanta
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Please can anyone tell me the voltage and current on the vox key line of both the L4B and L7. Drake service cannot. I want to make sure I do not damage an Icom 756 Pro 2. I really appreciate any info
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