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  1. sorted out amp fault
  2. JLH Power Survey
  3. Improving the Borbely Servo 100
  4. simple BJT gain stage
  5. Rod Elliot's P3A considirations
  6. Perceived sound vs. output impedance?
  7. Does anyone have the circuit of the Jeff Rowland Model-7?
  8. Complementary diff input with JFET and BJT cascode
  9. My second amp 2W
  10. Why use pots? better opamps?
  11. Dead amp
  12. Superb OPAMP preamp
  13. Single bjt buffer schema kindly requested.
  14. Series step attenuator
  15. Klasse A-versterker van 20 Watt
  16. Help with removing and replacing rectifier (IRF 6125) from a heatsink board
  17. Strange Crosstalk result
  18. High end audio?
  19. A mint Kenwood KA-907 amp is arriving, I need help/info/advice on restoring it.
  20. Small value caps (newbie alert)
  21. QSC MX-1500a problems
  22. Disaster NEED HELP PLS!
  23. Importance of "First Watt" ;)
  24. cross-quad and cascomp circuits
  25. output hum
  26. need help onkyo m-5000 and m-5140
  27. Delta 290 Arcam
  28. Elliott Sound MOSFET Power Amplifier
  29. 503 transistor
  30. Hafler DH220 Input Board Bottom Photo
  31. Build NAIM clone
  32. krell kas power suppy hum
  33. help me narrow down the distortion in my marantz 2238B
  34. Build A.... Quad?
  35. DC protection for leach
  36. spice models
  37. Need Schematic for Parasound HCA 2200 II
  38. selecting a transistor
  39. Parasound HAC2200II, schematic needed
  40. Protection Circuit - Crowbar - Zener vs SBS
  41. Overload protection circuit. Does it work correctly?
  42. I need help from Portugal, informs related Portuguese equipment brands and more....
  43. Help Convert Rotel Amp 220v to 110v? SEE PICS
  44. Luxkit A504 repair, long
  45. Noob needs help..Adcom GFA-545 DC blocking caps
  46. amp
  47. zero phase distortion
  48. Bryston 3B SST, enyone interested?
  49. I need an interpreter, maybe a new receiver?
  50. Behringer MX8000 schematic or service manual
  51. BC303 substitute in a TO126 package.
  52. from +/-80v to +/-70v rails
  53. Ksa-150
  54. Anyone got schematics for the Cambridge Audio model P40?
  55. Yba
  56. AURA VA 50 shematics
  57. Schema NAD 310
  58. subwoofer amplifier schematics?????
  59. Readjusting balance
  60. Stand-Offs for PC Board
  61. Well, i found what i was searching for so long time...the old amplifier, 1968 .
  62. New opamp design tool at Analog Devices
  63. Transistor specs. Help!...do you know those units?
  64. Power supply caps
  65. capacitor leads trouble
  66. Help with strange opamps
  67. Effect of output Stage Configuration on Damping Factor
  68. small amp
  69. Need to build simple MOSFET preamp!!Please help!
  70. help with amp
  71. Amplifier kit for my needs? Please, help - TY
  72. Marantz PM 55 schematic !!! Help me
  73. Severe humm in Squier Champ 15G guitar amp by Fender
  74. Accuphase schematic
  75. Anyone have any luck contacting Dr. Leach
  76. Power suply reduction
  77. Crown amps, transistor replacement (long)
  78. car amplifier ADCOM AMP GFA-4402
  79. marantz 22xx - front panel to EQ board
  80. Douglas Self PWR AMPS?
  81. Power Amplifier is Quiet / Broken?
  82. NAD 2200PE Schematic
  83. quick question ... really
  84. Bias Generator for Source Follower OPS
  85. Can guru's help?? Looking for a tube-like clip diode.
  86. Ultra-High performance OpAmp-based MOSFET Power Amp
  87. voltage problem in 400watt amp
  88. 300w rms amp
  89. Electronic function selector
  90. Electronic Lamps, electricity, i need help, lamps burning, needing procedure
  91. Nak PA7 clone
  92. Pre amp? What schematic do i need?
  93. Help for an audio amp (newbie)
  94. Sansui g-7500?
  95. NAD 705 Stereo Receiver Service Manual?
  96. HiFi transistors
  97. Sansui R-550 Service Manual
  98. need assistance
  99. TV Horzontal Output Transistor for output stage..?
  100. Power amp VI limiting?
  101. Marshall Valvestate Pro 120/120 power amp schemayic ????
  102. Tone ctrl bypass reduces volume?
  103. about the difference in sound quality between the two NAD amps. 3020 and 3225
  104. Dx Led Wattmeter, it can be usefull, and you can modifie and put your name on it
  105. Here's a good power amp fault
  106. anyone know the musical fidelity a1 -x amplifier
  107. Nad 272 power amp
  108. ? D666AC, B646AC -vs-C2705 ,A1145 - which one substitute which one?
  109. LTspice under Linux/wine
  110. DIY Baxandall network
  111. Bass Kill/Hpass Xover for VCA DJ mixer
  112. Equalize a passive bi-amp system
  113. Preamp?
  114. Schematic Marantz needed
  115. high end version of low end phono stage
  116. Purpose of this capacitor in discrete amplifier?
  117. noise from the potentiometer
  118. Standards of parts naming on PCBs?
  119. tip35c failures response
  120. Repairing a luxman M-120A
  121. Ion Nexus
  122. quad 77 pre 115v voltage
  123. Inter-M REF-2150 schematics
  124. How should I integrate this remote volume control?
  125. transit time in Amplifier
  126. Randall Amp problems
  127. Feedback & audio amp
  128. preamp
  129. Sumo Polaris 310
  130. mosfet 450w irf240 / irfp9240 amp help
  131. confused
  132. PPI vs. Alpine
  133. some transistors of interest
  134. Increasing caps on existing receivers
  135. MUR806 vs FRED bridge
  136. general question about feedback, input impedance, and noise
  137. Why always differential stages?
  138. power supply transformer wiring question
  139. Help interpreting spectrum analyzer results (pic attached)
  140. Cascodes- the truth is out there...
  141. RIAA Preamp
  142. Shunt-regulated 24V DC Power Supply for Preamp Modules
  143. Nad 916 schematics wanted
  144. ETI480 - is "factory" cooling enough?
  145. ETI480 help please
  146. Parasound
  147. All About Amplifiers
  148. looking for dual npn and dual npn smt transistors
  149. biamp used only to drive low frequencies
  150. Adcom 565 amplifier HELP
  151. IRFP240&IRFP9240 power amplifier schematic
  152. OnSemi ThermalTrak
  153. What to do with some beefy bits
  154. some power amplifier recomendations
  155. recalculating resistor values
  156. :Help: Are these transistors interchangeable?
  157. Lyra Connoisseur 4-2L SE: What a masterpiece!
  158. Luxman 1500 Receiver Disassembly
  159. PC O'scope/analyser
  160. help selecting a good amp project
  161. szekeres amp - irf510 equivalent
  162. best small signal FET?
  163. PGA2310 - Setup for highest audio quality
  164. Which OPAMP
  165. Mc Cormack
  166. Hawksford based conceptual amplifier
  167. My first attempt at amp design
  168. ART sla-2
  169. Reference Line Preeminence 1B Remote HELP!
  170. Musical figelity B1 N-channel
  171. I need a portable diy electronic AC volt meter, to avoid transportation of Scopes.
  172. The Sound of Science
  173. Alchemist Kraken Apd6a Mkii
  174. Marantz 1060 parts
  175. LOOKING FOR Schematics for MA5100 - Please
  176. Acoustic Reasearch
  177. I need help decidint which amp to buy
  178. TIP35C Failure
  179. 5534 audio amp
  180. help with hooking up transformer to IEC and psu
  181. Electrocompaniet Aw100MB
  182. What is the problem with this amp? mods requested
  183. Transistor subs..
  184. Adcom 5400 Power Amp Distortion - Need Help
  185. Looking for the best relay
  186. Relation between voltage gain and dB amplification
  187. Chassis for power amp
  188. Jung SR schemo/layout
  189. That source is this?
  190. NAD 1020 Preamp Problems
  191. Transformer substitution help
  192. Carver PM 1200 Protection light on, amp works!
  193. Need NAD 2140 schematic
  194. Technics SA-600
  195. preamp soft start
  196. request high power amplifier
  197. Hawksford output error correction circuit?
  198. Adcom 5400 Power Amp Schematic
  199. Luscious New Design!!
  200. Quick and Dirty X-over
  201. AMP CLASS A to B detection
  202. Looking for Technics SU-V7 Schematic
  203. Leach Amp Mod
  204. acousto-optic modulator and deflector
  205. Testing a power amp
  206. P3A Bridged Into 4 Ohm load
  207. Some topology of current feedback amplifier
  208. Using Many Small Signal transistors for the output stage Update!!
  209. spice up my life :)
  210. classic 8.0B shematics
  211. Will this work?
  212. Application of feedback Quad amps
  213. I want my ETI-480 amp stronger
  214. Help needed repairing HK Citation 12
  215. Krell PAM-5 gain adjust
  216. 300B solidstate?
  217. Perreaux 1150-b Distortion
  218. Legacy OpAmps
  219. Advanced Solid State Amp
  220. Help! Marshal MG50DFX Anybody Anyideas
  221. Have a look at this schematic please
  222. Crest Amp Circuit Schematics
  223. sony amp ta1055
  224. Error Correction Idea
  225. Can I use-35-0-35 volt DC for Leach Amp?
  226. rnrss orates on Power Amplifiers
  227. My Completed Krell KSA 50 Clone - Pics
  228. mox confusion
  229. Obsolete transistors
  230. Neutral amp parameters
  231. transformer substitute question
  232. Pioneer SA-8500 schematic ?
  233. Square wave testing....Cap value
  234. What Speakers Work best with the JLH 10W Class A Amplifier
  235. speaker protection - fail again - help please
  236. NAD 214 protection relay
  237. Spice: how to set IDSS etc?
  238. Western Electric 487c rectifier
  239. Has Anyone Got a Bose Amplifier circuit diagram?
  240. 24 dB/Octave 2/3-Way Linkwitz DC on output after power cut
  241. Volume control question for pre-amp, please help
  242. I though that I mastered TIM
  243. Carlos! This is my amp
  244. Need help with Giesberts HEXFET AMP
  245. Moving the volume knob
  246. Trying to make a car amp. got a big different from the.... ?
  247. Dual mono amp star grounding questions
  248. New homade job
  249. Any mods for Rotel RB 850
  250. onkyo integar A-9711 amplifier

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