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705 [2007/02/13 23:24] n5na |
705 [2012/01/25 22:49] (current) n1eu |
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====== Microphone Model 705 ====== | ====== Microphone Model 705 ====== | ||
+ | {{705.jpg?150|}}{{705btm.jpg?150|}} | ||
===== Description ===== | ===== Description ===== | ||
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The Model 705 comes in two versions. The standard unit includes a four pin standard locking type cable connector which is pin compatible with Ten-Tec Models [[560]], [[561]], [[562]], [[563]], [[564]] and [[585]]. With a minor resistor change in the Models [[560]] and [[561]], the standard unit may be powered from the transceiver without the need for a 9 volt battery. The Model 705-A comes with a stereo 1/4" phone plug. This unit is compatible with the Ten-Tec Models [[525]], [[540]], [[544]], [[515]], and other early models. A 9 volt battery is required for the Model 705-A. | The Model 705 comes in two versions. The standard unit includes a four pin standard locking type cable connector which is pin compatible with Ten-Tec Models [[560]], [[561]], [[562]], [[563]], [[564]] and [[585]]. With a minor resistor change in the Models [[560]] and [[561]], the standard unit may be powered from the transceiver without the need for a 9 volt battery. The Model 705-A comes with a stereo 1/4" phone plug. This unit is compatible with the Ten-Tec Models [[525]], [[540]], [[544]], [[515]], and other early models. A 9 volt battery is required for the Model 705-A. | ||
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+ | ===== Difference Between the 705 and 706 ===== | ||
+ | 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. | ||
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+ | ===== 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. | ||
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+ | ===== Mods & Tips ===== | ||
+ | *[[705gain|705 Gain Mod]] | ||
+ | *[[705lowout|705 Low Output]] | ||
+ | *[[705conn|Connector Wiring]] | ||
+ | *[[706-588wiring|Wiring Diagram]] for an 8 pin connector | ||
===== Specifications ===== | ===== Specifications ===== |