====== Power Supply / Speaker Model 962 ======

{{962.jpg?150|}}


===== Description =====
The Model 962 Power Supply is designed to power the TEN-TEC Models [[560]]/[[561]]/[[563]]/[[564]] and [[585]] transceivers.  The supply delivers 20 amps at 13.5 Vdc from a 115/230 Vac 50/60 Hz source.  Circuit features include an electronic over-current sensor which shuts off the output if the current demand exceeds 22 amps.  The over-current shut down condition is reset by cycling the POWER switch from ON to OFF and back to ON.

The output voltage is available through a 4 x 14 guage 3 foot cable and connector.  The cable carries +13.5 Vdc, ground and the "hot" side of the AC primary and mates directly to the POWER jack on the [[560]]/[[561]]/[[563]]/[[564]] and [[585]] transceivers with a [[80572|4 pin AMP MATE-N-LOC]] connector.  Two RCA phono jacks on the back of the supply also provide +13.5 Vdc for low current (2 or 3 amps) auxiliary applications.

{{962_schematic.pdf | 962 Power Supply Schematic from WB4JTR}}

From WB4JTR - In the 962, the regulator pass element was moved to the negative side of the bridge so that the collectors of the power transistors could be grounded -- eliminating the requirement for the mica insulators and protective plastic covers.


===== Specifications =====
  ***Input Voltage:** 105 - 125 Vac or 210 - 250 Vac, 50-60 Hz.
  ***Output Voltage:** 13.8 Vdc, internally adjustable from 11.5 to 15.0 Vdc.
  ***Output Current:** 20 Amps full load, 22 Amps maximum for 5 minutes.
  ***Current Limiting:** Electronically disables output.  Factory set threshold at 22 Amps.
  ***Regulation:** -3% at output connector for no load to 20 Amps full load.
  ***Ripple:** 20 mV peak to peak at 20 Amps.
  ***Speaker Impedance:** 8 ohms

===== Difference Between Models 961 and 962 =====
__From a post on the Ten-Tec Reflector:__

"they regulate the neg (-) line in the 962, where they regulated the pos (+) line in the older [[961]]."