Yes allard.
?here is the small suggestion.
?the png file has? encircled areas marking the mod.
?As the resistors used are 4K7 each , they won't effect the workg of the rig at 50 ohms impedance,
At the same time the 12V supply will pass 12/9K4? mA thro the normal closed contact?? (NC)of the said relays. It is obvious that low level uV signals find it difficult to pass thro a metal contact.
?This was a standard practice in electromechanical telecom switches.
all the best regards
?sarma
?vu3zmv
