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  1. LM4562 opamp crackling when trying to drive headphones.
  2. The mu-amp revisited
  3. Small earth hum, what could be a possible cause?
  4. Emotiva XPA-3
  5. Help for PCB for PWM controler
  6. SMPS for Class A amp?
  7. AF filter using opamps - substitution of opamps
  8. Amplifier for driver... what class?
  9. schematic of Phonic PWA 2200 power amp?
  10. Another... Which amp should I build?
  11. Pop to speakers when power strip is shut off
  12. DC Filter against humming Toroidals - Summary of the most interesting Comments
  13. Indirect feedback with FETs
  14. Help with JFET buffer!
  15. Simple BUF634 buffer schematic?
  16. PSS audio Essence 308 Amp.
  17. Arcam Alpha 3
  18. Audiolab 8000P Power Amp
  19. Custom Transistors
  20. Is Tony Brady still here - looking for Onix Info
  21. Look what I just bought--FOUR Marantz MA-24s.
  22. Shunt Regulated JLH
  23. Hi-Fidelity PA Amp out there?
  24. Symasym done differently, clean Hi Fi amplifier P12W4R
  25. a musical universal solution
  26. sony ta-f444es tweeks
  27. Cleaning dust from old amp - advice please.
  28. The missing piece, any ideas?
  29. behringer powered speaker
  30. Powered speaker: Sound decays in 2 seconds
  31. input of stomp boxes
  32. 100watt MOSFET Power Amplifier
  33. LJM-L10 supply question
  34. SANSUI 2301
  35. LSK389, LSK170, LSK174
  36. What's your thought about used components?
  37. Help modifying a 2-way amp
  38. mixed (lateral + vertical) MOSFET paralelling
  39. Altec 9440A - cloning best solid state amp ever
  40. Adcom GFA-555 Leaky Power Caps?
  41. Definitives
  42. McIntosh MA7000 overhiting
  43. Nikko Beta 20 preamp
  44. jFET amp with current NFB
  45. Dual-jFET 2SK146 and two single jFETs 2SK147 in parallel Operation in Luxman's L550
  46. pre/amp . compat or not
  47. Need A5 Schematic
  48. diy short circuit protection
  49. Repairing a Rega Elex Integrated Amplifier
  50. Seeking NOS 2SK162
  51. Class A Kits
  52. LM317 for output stage
  53. A simple quasi-complementary 50 watts amp
  54. Leach Capacitor Upgrade
  55. Bored....what to do with all these old parts in the junk box?!
  56. Amp to power 1x15", 4x5" & 2xTweeter
  57. Quad 405 cheap kits on ebay
  58. Best source or replacement for KTA1700/KTC2800 transistors?
  59. tranformer noise
  60. Can anyone ID this rather unhealthy noise coming from my amp?
  61. JBL 6290 amplifier mods on Pcb
  62. Learning Repair Need Help With Sub Amp
  63. Cause of dc thump at turn on
  64. NAD 3020A transistors heating up.
  65. 2SA1024/2SC3206 substitution sugestion
  66. No - feedback amplifier
  67. Technics SU-V7
  68. Denon PMA-860 schematic/service manual
  69. ultra low noise low distortion preamplifier needed
  70. Easiest/Economical way to build multichannel Class A/B amp? Suggestions Welcome
  71. build a simple yet effective volume control (attenuation) of analog ?
  72. Krill output stage + tube preamp
  73. Elkatone Amp with problems
  74. No Power on High Side Bias Com-Tech 400
  75. Old amp, power out and fault?
  76. NAD 3020A Muting circuit??
  77. Wanted: Behringer Europower EP2500 Schematics
  78. Circuit or project for an active filter for subwoofer
  79. why isnt my amp doing what its supposed to.
  80. Yamaha PD2500
  81. audiolab 8000
  82. Improved 2W current sources (II)
  83. Bridge amp with LM833 and BD139/BD140 problems - please help.
  84. Linn LK85 (LK-85) and LK140 (LK-140) schematic needed
  85. Microphone wiretapping, for further distance
  86. Where do I plug this into!? Help! ?Heat Sink?
  87. LME 49810 with NMOS output stage 1000W @ 4 OHM
  88. Solid state tutorial
  89. Amplifier burning resistor.
  90. Pioneer SA7300 amp
  91. Massive High Power Solid State Integrated Amplifiers - Overview wanted
  92. Replace a '80 Class A stereo with a Class T/D
  93. PS Audio Delta 100
  94. Output transistor suggestions for McIntosh MC2105
  95. Easy to do audio Hi Fi amplifier P16W2R
  96. NORTON KP600
  97. How to reduce the gain of the symasym 5_3?
  98. TGM5 - all-BJT Simple Symmetric Amplifier
  99. Why 3 dB?
  100. Dirty connections in Technics su-v7
  101. Super clean audio amplifier P8W4R
  102. "The Wire AMP" Class A/AB Power Amplifier based on the LME49830 with Lateral Mosfets
  103. Improving clipping
  104. Parallel Lateral FETs
  105. Need chassis case for new amp!!!
  106. Hartke Series 2000 Bass amplifier. Schematic request
  107. Alluminium chassis where I can buy it
  108. Self load invariant supply voltage
  109. JVC A-K300B stereo receiver
  110. P.L. Taylor "Audio power amplifier" 1973 anyone have article?
  111. Lateral FET current limiting
  112. Nishiki Amplifier with 2SC5200
  113. SIMPLE BUT EFICIENT AUDIO AMPLIFIER !
  114. Oh Shoot! Did I Kill a Channel?
  115. Marantz SR8200
  116. Feedback Wanted - Hantek USB Oscilloscopes
  117. Diamond Buffer /w "bootstrapped power supply"
  118. hard to find!!!
  119. transistor mounting technique ? Heatsink
  120. Comment on the schematic
  121. V-out DAC directly into power output stage (like an F4)?
  122. 100 Watt Class A Power Amp
  123. Metal Film or Carbon Film Resistors in Marcof PPA-1h ??
  124. PL 700 Series II went psycho!
  125. SEC DIY 2011 Speaker Show!
  126. 500W 2sk135, 2sj50 amplifier
  127. Grounding on single rail ? (building aspect)
  128. Audio Inovative Ideas and More ...
  129. Marshall 8100 valvestate tube problem help
  130. Identifying the stages of an amplifier (understanding)
  131. Post mortem of an ESI nEar 05 studio monitor with pictures
  132. What is this?
  133. Event TR6 Power Output Issues
  134. Pioneer sa-610
  135. Crate TX50 schematic
  136. parasound hca 800ii
  137. Draw schematics using your browser and share them
  138. The high slew rate design that time forgot?
  139. Problem with 80W mosfet amplifier - help me please
  140. elctrocompaniet ec 4.7 mkI
  141. Feedback Takeoff Point ?
  142. Adcom GFA-555 + Onkyo TX-NR709 Mute Thump?
  143. Question about Rotel RB-880 amplifier
  144. New amplifier problems
  145. 100W Hi-Fi audio amplifier!
  146. Technics SU-X920D
  147. CROWN POWERTECH 1
  148. 2SK135 - 2SJ50 -12W
  149. What value bypass caps for 1uf, 2.2uf and 3.3uf?
  150. Building A (Poorly Desinged) Symmetrical Emitter Feedback Amplifier
  151. This old amp is good?
  152. Electrolytic Cap can I replace with film
  153. Sub a silicon trans for a germanium
  154. Anybody have a formal loudness circuit?
  155. any question...some questions?
  156. output inductor//resistor placement
  157. some cuestions help!!!
  158. Help! What would be the input inpedance of this input stage?
  159. Parts placement in enclosure tips
  160. Krell FPB200 schematic or service manual anybody please?
  161. LatFET OPS.
  162. Pioneer SX1010 issue
  163. high impedance load
  164. Sony STR-VX750 no audio & no volume control
  165. LM741 :-)
  166. LME49811TB 500W amp module
  167. Son of Ampzilla VI limiters
  168. PCB Layout Process and Guidelines?
  169. QQQ (Quick Quad Question...)
  170. TRACE ELLIOT ...
  171. Phils Amp - Progress?
  172. Mains Hum - Are cheap caps worth it?
  173. standard AB bias heatsinking versus enriched class A
  174. Make your own custom ICs for very cheap !
  175. class A to class AB switch
  176. Quad 405 clone
  177. Guitar Effect pedals input/output specs
  178. FIND: ORIGINAL OBSOLETE TRANSISTORS
  179. Help! I let some magic smoke out :(
  180. L-speed current sea-saw circuit, simpler the better
  181. Thorens Restek.. Vector Pre Amp
  182. connecting two 110v amplifiers in series on 220v mains
  183. Postive output voltage only
  184. emotiva upa2
  185. Super distorted old amplifier problem
  186. Recommend amplifier to build
  187. Transistor case coupling??
  188. Faulty amp?
  189. Nikoo A-300D, recapping dilemma...
  190. L12-2 CFP OUTPUT AMP 120W*2 8R
  191. SoundTech PowerSource1300 NOISE
  192. Anyone tried the Renardson Output Stage ?
  193. Simple Killer amplifier
  194. Rotel 820AX problem - any known issues?
  195. Cause of extreme voltage swing at turn on
  196. Amplifier testing on PC with DAAS
  197. Wharfedale EVP-15P amplifier fault
  198. Preamp to match Meridian 206 DS cd player
  199. Crown Com-Tech 400 Dead Channel?
  200. CLASS A POWER AMP
  201. Ultimatest Passive Tone Control Network based on James-Baxandall's topology wanted
  202. Adcom GFA-535 Transistor sub
  203. Pioneer A400 transformer
  204. Amplifier volume knob noise
  205. 100W Hi-Fi amplifier-Help!?
  206. Did someone had tested this current feedback power amp ?
  207. Technics SU-V40
  208. opa827 bypassing,pioneer A-8 tone controls
  209. What Degrades Channel Separation in a Stereo Power Amp?
  210. Recommendation for audio amplifier!?
  211. NAD C320 Can the protection be adjusted
  212. transistor help please
  213. NAIM Nait5i V2 transformer voltage
  214. help fixing a tone control circuit
  215. Jeff Rowland Model 7 mk2 bias adjustement
  216. transistor source
  217. Need help repairing Denon AVR 5803
  218. My first designed amp
  219. Hall-effect current sensor for output stage over-current protection
  220. floating supply amp with single supply
  221. WHICH IS BETTER TRANSISTOR MJE340/350 OR BD139/BD140
  222. Circuit Translation Services
  223. Cairn 4807 Integrated Amplifier Schematic/Service Manual wanted
  224. Aragon 4004 slow relay problem
  225. Marshall Amp GR100RCD Transistor Help
  226. Sansui AU-6900 Questions and problems
  227. Thump when switching amplifier on (guitar amp)
  228. Oscillation only at raising slope
  229. Pure Reference Class A Monoblock
  230. Determining current limit
  231. digital amp modelling
  232. Help in improving a Cambridge P500 (more caps)
  233. MC250 Input Section Voltage Question
  234. Need help with Nad 3020A
  235. Jitter or phase noise in LTSPice
  236. The Sisian Amp
  237. Darlington or Sziklai (compound) pair output stages?
  238. Amplifier repair, some pointers please?
  239. Powering A Tough Speaker (Split from Simple Symmetrical Amplifier)
  240. how can the wattage be?
  241. Experience on diy gene kit A-15
  242. Schematic? Mark Levinson No. 33H
  243. marshall mg100 hdfx
  244. Need help please
  245. Op amps and Pass Transistors
  246. 400W Mosfet Amp Problem
  247. Dx line up comparisons and pcb order info?
  248. Sizing output stage
  249. Other interesting electronics forums ?
  250. Peavey repair- change out one of a group of outputs?

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