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Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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<blockquote data-quote="Llew" data-source="post: 309454" data-attributes="member: 175007"><p>You will probably have to source the components from more than one supplier.</p><p></p><p>The resistors and capacitors shouldn't be a problem, try Farnell, RS, Maplins etc.</p><p></p><p>Q3/4 - 2SC3205 and Q5 2SA1273 (or BC640) Cricklewood Electronics</p><p></p><p>D2/3 - ZD13, ZD30 are zener diodes. Suitable replacements are BZX85-C13 and BZX85-C30 respectively. Farnell.</p><p></p><p>The shunt regulators KA431AZ/LZ may be difficult to obtain. The suffixes denote the output voltage % tolerance ( AZ=1%, LZ=0.5%) The one available from Farnell (KA431Z) is the 2% tolerance version, not sure how critical this component is in this circuit. </p><p></p><p>Llew</p></blockquote><p></p>
[QUOTE="Llew, post: 309454, member: 175007"] You will probably have to source the components from more than one supplier. The resistors and capacitors shouldn't be a problem, try Farnell, RS, Maplins etc. Q3/4 - 2SC3205 and Q5 2SA1273 (or BC640) Cricklewood Electronics D2/3 - ZD13, ZD30 are zener diodes. Suitable replacements are BZX85-C13 and BZX85-C30 respectively. Farnell. The shunt regulators KA431AZ/LZ may be difficult to obtain. The suffixes denote the output voltage % tolerance ( AZ=1%, LZ=0.5%) The one available from Farnell (KA431Z) is the 2% tolerance version, not sure how critical this component is in this circuit. Llew [/QUOTE]
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Schematic For Echostar AD3000ip Power Supply
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