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705 [2008/09/11 17:20]
n5na
705 [2012/01/25 17:49] (current)
n1eu
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 The 705 and [[706]] are essentially the same.  The 706 does not have the compartment in the bottom to hold a 9V battery to supply voltage for the electret mic and circuitry.  The [[706]] only works with rigs that supply the necessary voltage through the mic connector whereas the 705 can operate from rig voltage or battery.  Also the 705 has a switch on the bottom to tell the controls on the mike base if you operate VOX or PTT.  The 705 has a bit more versatility for use with older transceivers not having voltage present at the mic connector for the electret mic. The 705 and [[706]] are essentially the same.  The 706 does not have the compartment in the bottom to hold a 9V battery to supply voltage for the electret mic and circuitry.  The [[706]] only works with rigs that supply the necessary voltage through the mic connector whereas the 705 can operate from rig voltage or battery.  Also the 705 has a switch on the bottom to tell the controls on the mike base if you operate VOX or PTT.  The 705 has a bit more versatility for use with older transceivers not having voltage present at the mic connector for the electret mic.
  
 +===== Corsair Modification ===== 
 +The documentation that accompanied the 705 microphone included information on modifying a Corsair I or early Corsair II (s/n before 1970) to power the 705 microphone.  The modification involves shunting an existing 10K ohm resistor on the IF/AF board with a 470 ohm 1/2w resistor.
  
 ===== Mods & Tips ===== ===== Mods & Tips =====