I soldered the red/white wires to the mike's +/- terminals and the shield to the metalic housing.
A) At the plug end, the (-) and the shield were soldered together going to the common of the preamp. Is this reasonable?
B) Found the shielded plastic-jacketed bipolar cable quite hard to bend. Could I use single shielded wire (red only plus shield), soldering the shield to the housing and negative terminal? I do not see any difference since in both cases signal is unbalanced.
C) Used it to test on the bench my just-built pre + filter + amp. It seems to work but I hear some hum (most probably 50 Hz from mains). Should I do something else on the mike + wire + plug or could I expect that a metalic enclosure could cure it?
Thanks for any reply / comments.
A) At the plug end, the (-) and the shield were soldered together going to the common of the preamp. Is this reasonable?
B) Found the shielded plastic-jacketed bipolar cable quite hard to bend. Could I use single shielded wire (red only plus shield), soldering the shield to the housing and negative terminal? I do not see any difference since in both cases signal is unbalanced.
C) Used it to test on the bench my just-built pre + filter + amp. It seems to work but I hear some hum (most probably 50 Hz from mains). Should I do something else on the mike + wire + plug or could I expect that a metalic enclosure could cure it?
Thanks for any reply / comments.