FG504: Difference between revisions

FG504 (view source)

182 bytes added , 26 February

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 ==Rear Interface==
 <small>
-'''Left (Main)'''
+'''Right (as seen from the front, main board)'''
 {| class="wikitable"
 |-
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 | 27A      || Output Common
 |}
-'''Right (Floating)'''
+'''Left (mechanically floating interface board)'''
 {| class="wikitable"
 |-
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 ==Internals==
-The FG504 takes +/– 33 V from the left slot, + 11 V from both slots, and 17.5 V<sub>AC</sub> from the right slot.
+The FG504 takes +/– 33 V from the right slot to create a +/– 15 V supply, and the + 11.5 V for a +5 V supply.
-It uses the 25 V<sub>AC</sub> windings on the right slot, and the pass transistors on both.
+It uses the 25 V<sub>AC</sub> windings, 17.5 V<sub>AC</sub>, and + 11.5 V on the left slot for a +/– 25 V supply to the output amplifier.
+The regulators incorporate the mainframe pass transistors on both slots.
 U770 is a [[155-0032-00]] below S/N B057720, a [[155-0217-00]] from B057720 on.