Specifications

PA250 Series High Power Voice Amplifier
SM44-1 Installation and Operation Manual
April 22, 2012 Rev: 2.00 Page 1-5
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.5.4 Power Supplies
Power can be supplied by storage batteries, electronic supplies or vehicle/aircraft power systems.
Vehicle supplies of 24 – 28 Vdc are an obvious choice for most airborne/mobile installations. The 12 – 14
Vdc supply of the commercial vehicle can not be used.
In the hand-pack series, sealed nickel cadmium cells are used. Adding extra cells can almost double the
available power.
Electronic power supplies are frequently used in maintenance shops and fixed installations. A minimum
requirement would be a well regulated supply of 20 - 40 Vdc at 25 A.
1.5.4.1 VR33-001 Power Converter
The VR33-001 is a power conversion device designed to increase the nominal 28 Vdc aircraft voltage to
33 Vdc using high speed switching DC-DC conversion. The VR33-002 is designed to be used with the
PA250 Series Audio Power Amplifier.
End of Section 1.0