View Full Version : Power Supplies

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  1. LM7805
  2. Rod Coleman raw supply circuit board
  3. Longwell plug top with LPF
  4. Regulated Power supply for amp
  5. Replacing power supply capcitors on Laney amp
  6. Power supply board with loudspeakers protection
  7. elliot smps project89
  8. Xentek XE240-12
  9. Capacitance
  10. Isolated sub chassis
  11. HOT ROD Dcb1 questions
  12. Adding Primary Turns to reduce the Secondary Voltage.
  13. First power supply clarification questions
  14. double the current, keep the voltage?
  15. HV Tube bench power supply
  16. HV Supply in Heathkit
  17. Is This a Bad idea? -"Capacitor box"
  18. Hgh current regulators
  19. Can anyone identify this power supply noise?
  20. Some help with building a battery power supply
  21. DIY filament PS for 6AS7G
  22. basic question about audio power
  23. Dropping Transformer Voltage
  24. 230V Distribution Box with DC blocker and 2 stage AC Filter
  25. Need help about Toroidal transformer core
  26. inductor in series with transformer primary to reduce secondary voltage?
  27. Need to drop vdc voltage in my B+ supply
  28. Help me to find this power recepticle.
  29. how to wire antek transformator to E-01 AMP?
  30. Capacitor bank for ps supply filter
  31. Ultra-Fast Avalanche Sinterglass Diode for small current psu rectification?
  32. Salas Bib questions
  33. Power supply CD PRO2
  34. Connect to what?
  35. Converting my Sun Audio monoblocks to IEC and safety earth
  36. Luxman RV-357 Standby LED Indicator???
  37. dc/dc isolated transformer
  38. 3-pin PSU's for 1.2V, 3.3V and 5V?
  39. Marantz PM4400 - Change 230V to 115V
  40. output impedance in shunt reg sim
  41. Need Power Supply
  42. Power relay
  43. 5AR4 in a input choke
  44. Question on Vacuum State SuperReg
  45. 48V phantom power supply keeps blowing fuse
  46. Laminations - who needs 'em
  47. What choke is best
  48. Which power cable between separate power supply and dac?
  49. 4-pole cap in bipolar power supply
  50. Variable Power Supply
  51. ATX supply -> Cmoy, single or split?
  52. xd218 4x10000uF 100v board
  53. Variable-delay output muting PCB for preamps, linestages, et al
  54. Single touch power on/off switch
  55. NAD VISO 1 Power Supply
  56. LLC resonant power suply design
  57. Noob Trafo question
  58. Power supply ratings when using step down voltage regulators
  59. Stacking board level heatsinks
  60. Proper RC Snubbering
  61. Help lowering noise in big series pass regulator circuit
  62. Bucking transformer current load
  63. Leakage inductance of a transformer
  64. Lithium-ion power bank
  65. Help with discrete voltage regulator
  66. LiFePO4 battery psu for PUC2 Lite USB-AES converter
  67. Boost Converter w/ positive AND negative output
  68. 55 MHz opamp + MOSFET pass xitor in 1 amp Voltage Regulator
  69. Multipurpose Transfo,Dual (+/-)DC Power for Pre and Power Amp 's
  70. Harman Kardon HK775 mono amp capacitor power rating
  71. Reccomend a small transformer for power supply?
  72. designing a DC to DC buck converter Layout errors.
  73. Help with inductor and capacitor values?
  74. Dual Transformer Power Supply Chassis Grounding?
  75. Power conditioning IEC inlet filter with earth line choke?
  76. power supply for tda7294
  77. Mosfet suply switching steps 3 p / class H amplifier
  78. Pros and cons of using Dual transformers in amplifier
  79. Switchmode ICs
  80. smoothing caps getting warm
  81. ARC SP8 tube reg rebuild
  82. Noob Question: Wiring a battery system
  83. Input switch / Mute delay using 555
  84. B+ ripple filler filtering
  85. Nat Semi datasheet app note improved my power supply
  86. DIY mains synthesizer
  87. Schematic and measuring results for Connexelectronic SMPS300RE
  88. A good power supply for the LDR attenuator?
  89. r core for drd amp
  90. Strange part in Mcintosh MC-225 power supply - please help
  91. How do I Wire this switch?
  92. Wallwart PS Suppliers
  93. Power supply questions for modular DAC project
  94. Floating PSU
  95. Fusing transformers
  96. PSU Question
  97. Can I connect 2 LM317 regulators to dual supply rail?
  98. Switchmode transformer
  99. power supply wire 6 and 7
  100. Need Help with Power Supply for TDA7294 Chip Amp
  101. Damaged Transformer?
  102. Diode help! 18VAC --> diodes --> CRC 44mF-0.22R-44mF --> 24VDC @ 1.5-2.0A
  103. Would it be better to have the AC power supply in an external case
  104. PSU's for modular DAC, by a novice. Questions
  105. advantages of 2 power transformers
  106. +/- 120V,12mA from +12V using flyback?
  107. SMPS making
  108. Big size and low capacitance - are there any rules?
  109. How do I determine polarity on a dual primary toroid?
  110. Mains Filter
  111. Stomp box supply
  112. Replacing transformer with DC power
  113. AA DLC PS Solution
  114. Another PSU Transient Load Tester ("chop chop box")
  115. Need Help with TDA2052 Power Supply
  116. Transformer got really hot because I wired it wrong
  117. 12VDC Linear PSU
  118. Full wave center tapped power supply defies the laws of physics
  119. 1.2 kW regulated power supply
  120. 0-50V 0-10A Variable SMPS
  121. need help with battery selection for my amp
  122. First PSU Build help!!!
  123. Suitable chips for 15v down to 3.3v
  124. PSU sizing and limiting input gain for targeted output / THD ??
  125. MAX1771 stability issues
  126. Is this transformer a good start for a class D amp power supply?
  127. Circuit reduces PS noise by up to 26db
  128. using lundahl anode chokes for power supply
  129. Tungar Power Supply
  130. TL783, extending voltage range
  131. Distorted sine wave on transformer secondary...
  132. half bridge secondary voltage
  133. What swhitch to use for diy amp
  134. Two transformers
  135. Which Universal PSU for various AMP builds?
  136. Speed control for 120vac fan that does not add noise
  137. Can i buld a 5V DC PSU using Toroidal 15V @ 30VA
  138. 5V +/- Powersupply feedback
  139. humming sound
  140. Alternatives for MJ4502 and LM301A
  141. Toroid transformer winding
  142. Isolation transformer - does a cap on the secondary give any benefit?
  143. Stepdown trafo and possible rewind......
  144. What's A Good replcement transforer for Adcom GFA 535
  145. Counterpoint SA3000 power supply
  146. tracking down a possible electrical problem
  147. A puzzler of sorts (grounding problem).
  148. LM317 + 2 Transistors "Class A" Regulator?
  149. Voltage Regulator Question
  150. Heat sink insulators for Indigo "Bash" plate amplifier switching power supply
  151. PSU upgrade for Meitner PA6i Preamp
  152. Marantz M7C HT Regulator Adjustment
  153. Power Supply for ancient Goldmund Mimesis 10 DAC
  154. How do I limit current flow from a Car battery to an amp?
  155. power supply rail voltage too high
  156. Calculating input current
  157. Duel supply from 12V battery
  158. Moved: EU transformer for an Hafler 9505 Transnova?
  159. Store/latch fault signal
  160. Testing a New Design Shunt Regulator
  161. Failed attempt of Jung/Didden superreg PCB redesign
  162. Can I run a CB radio and Sub off of 1 amplifier?
  163. 317/337 based virtual ground PS
  164. When split supply from a single gives uneven rail voltages...
  165. Filtering the HF hash of a SMPS
  166. Reduce Transformer Output?
  167. Building the SBT PSU
  168. Art Audio Quintett Schematics
  169. I need a simple compact rectification & smoothing circuit to power 5v/12v electronics
  170. SMPS advice for headphone amp
  171. thyristor reset
  172. PS for Musical Fidelity V90 DAC
  173. Help please, I'm almost there fixing a SMPS!
  174. Notebook power supply and tube heater
  175. How to start PSU without motherboard - Dell PowerEdge 6850 1470W
  176. Beta testers wanted for discrete regulator
  177. simple zener string for psu regulation for ICs
  178. Use inductors to prevent diode-caused oscillation?
  179. Need wiring help for dual rail in R core
  180. Cap Multiplier: Before or After the Regulator?
  181. Audio Power Tranformer with 6 Primary Wires
  182. Capacitors battle Cheap vs Slighty Expensive
  183. Mystery load current spike in dual rail 9V low-battery cutoff circuit
  184. Schematic for LR8 IRF840 variable PSU?
  185. Half-Bridge SMPS with PFC
  186. Era Transpac LC325 5a power supply question
  187. 24VAC 50VA transformer project suggestion
  188. Coil for Active PFC stage
  189. SU power calcs
  190. power solutions for portable 19-24v tpa3116
  191. SMPS welding inverter soft LVI switcher.
  192. Fusing an SMPS
  193. 2400VA
  194. 10kW SMPS Amorphous / Nanocrystaline core
  195. TPS7A49 ultra low noise LDO - trouble
  196. Cooling of bridge rectifier
  197. nuforce icon hdp power supply
  198. Yet Another Transformer Identification Thread
  199. Asking about Power supply #PS1 of Audible Illusions
  200. Odd taps on Raphaelite PT
  201. old diode
  202. SMPS capacitance questions
  203. Best option for 9V rechargeable batteries
  204. Replacing diodes with Schottky type ones in PS - any drawbacks ?
  205. Old Style DCB1 vs Hot Rod DCB1? whats the difference in sch?
  206. Salas Extended version?
  207. Weird voltages on toroidal transformer output
  208. 20Amp upto 90V shunt Reg simpler version
  209. Noise reduction with massive choke?
  210. A little tester to determine transformer PhaseDots with no scope or signal generator
  211. Please help to choose a step-down controller chip
  212. Microphone pre-amp phantom supply
  213. TPS7A4001 vs Salas shunt Reg
  214. Synchronous Rectifier Controller
  215. Amp power Supply
  216. One secondary voltage and two biases
  217. 6 tap auto transformer/Variac help please
  218. general smps power supply troubleshooting question
  219. Mains filtering for a digital equipment.
  220. My spin of a DC filter board
  221. Power Supply Caps - Standard vs Audio
  222. Specification of a toroidal transformer
  223. looking for diodes
  224. 12V trigger and triac
  225. LM317 Based Tracking Preregulator Dual PSU
  226. Can i use SMPS as a Toroidal transformer?
  227. Powering Stompboxes With Dual Supply From A Single Battery
  228. Supply capacitors for Voltage Regulators
  229. LT1963A & LT3015
  230. Why use tubes in the power supply?
  231. Board mount SMPS for a preamp or active crossover
  232. ir remote, control signal, or audio input power on circuitry?
  233. Filter Cap Question for Power Regulators
  234. Waveform deformation and voltage drop in transformer
  235. Building my own Voltage Regulator
  236. Building a 3,3 volt rechargeable circuit
  237. 4 Pole AC Mains
  238. Quad 303 main caps 5600uf too much?
  239. PSU rectifiers (alternative to On-semi B40250TG)
  240. having problem with negative salas
  241. signal ground to earth connection
  242. Stabilizing DC heaters [newbie]
  243. Ohm's Law application: choosing a resistor
  244. Tube power supply.
  245. Ceramic caps & Piezzo noise on digital stufs
  246. Induced buzz in Hammond 374bx
  247. Identyfying ferrite core material
  248. capacitor across main power switch
  249. Can a toroidal transformers be replaced with batteries?
  250. 10x8 Raw DC board with CR(L)C filter

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