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  1. Complementary diff input with JFET and BJT cascode
  2. My second amp 2W
  3. Why use pots? better opamps?
  4. Dead amp
  5. Superb OPAMP preamp
  6. Single bjt buffer schema kindly requested.
  7. Series step attenuator
  8. Klasse A-versterker van 20 Watt
  9. Help with removing and replacing rectifier (IRF 6125) from a heatsink board
  10. Strange Crosstalk result
  11. High end audio?
  12. A mint Kenwood KA-907 amp is arriving, I need help/info/advice on restoring it.
  13. Small value caps (newbie alert)
  14. QSC MX-1500a problems
  15. Disaster NEED HELP PLS!
  16. Importance of "First Watt" ;)
  17. cross-quad and cascomp circuits
  18. output hum
  19. need help onkyo m-5000 and m-5140
  20. Delta 290 Arcam
  21. Elliott Sound MOSFET Power Amplifier
  22. 503 transistor
  23. Hafler DH220 Input Board Bottom Photo
  24. Build NAIM clone
  25. krell kas power suppy hum
  26. help me narrow down the distortion in my marantz 2238B
  27. Build A.... Quad?
  28. DC protection for leach
  29. spice models
  30. Need Schematic for Parasound HCA 2200 II
  31. selecting a transistor
  32. Parasound HAC2200II, schematic needed
  33. Protection Circuit - Crowbar - Zener vs SBS
  34. Overload protection circuit. Does it work correctly?
  35. I need help from Portugal, informs related Portuguese equipment brands and more....
  36. Help Convert Rotel Amp 220v to 110v? SEE PICS
  37. Luxkit A504 repair, long
  38. Noob needs help..Adcom GFA-545 DC blocking caps
  39. amp
  40. zero phase distortion
  41. Bryston 3B SST, enyone interested?
  42. I need an interpreter, maybe a new receiver?
  43. Behringer MX8000 schematic or service manual
  44. BC303 substitute in a TO126 package.
  45. from +/-80v to +/-70v rails
  46. Ksa-150
  47. Anyone got schematics for the Cambridge Audio model P40?
  48. Yba
  49. AURA VA 50 shematics
  50. Schema NAD 310
  51. subwoofer amplifier schematics?????
  52. Readjusting balance
  53. Stand-Offs for PC Board
  54. Well, i found what i was searching for so long time...the old amplifier, 1968 .
  55. New opamp design tool at Analog Devices
  56. Transistor specs. Help!...do you know those units?
  57. Power supply caps
  58. capacitor leads trouble
  59. Help with strange opamps
  60. Effect of output Stage Configuration on Damping Factor
  61. small amp
  62. Need to build simple MOSFET preamp!!Please help!
  63. help with amp
  64. Amplifier kit for my needs? Please, help - TY
  65. Marantz PM 55 schematic !!! Help me
  66. Severe humm in Squier Champ 15G guitar amp by Fender
  67. Accuphase schematic
  68. Anyone have any luck contacting Dr. Leach
  69. Power suply reduction
  70. Crown amps, transistor replacement (long)
  71. car amplifier ADCOM AMP GFA-4402
  72. marantz 22xx - front panel to EQ board
  73. Douglas Self PWR AMPS?
  74. Power Amplifier is Quiet / Broken?
  75. NAD 2200PE Schematic
  76. quick question ... really
  77. Bias Generator for Source Follower OPS
  78. Can guru's help?? Looking for a tube-like clip diode.
  79. Ultra-High performance OpAmp-based MOSFET Power Amp
  80. voltage problem in 400watt amp
  81. 300w rms amp
  82. Electronic function selector
  83. Electronic Lamps, electricity, i need help, lamps burning, needing procedure
  84. Nak PA7 clone
  85. Pre amp? What schematic do i need?
  86. Help for an audio amp (newbie)
  87. Sansui g-7500?
  88. NAD 705 Stereo Receiver Service Manual?
  89. HiFi transistors
  90. Sansui R-550 Service Manual
  91. need assistance
  92. TV Horzontal Output Transistor for output stage..?
  93. Power amp VI limiting?
  94. Marshall Valvestate Pro 120/120 power amp schemayic ????
  95. Tone ctrl bypass reduces volume?
  96. about the difference in sound quality between the two NAD amps. 3020 and 3225
  97. Dx Led Wattmeter, it can be usefull, and you can modifie and put your name on it
  98. Here's a good power amp fault
  99. anyone know the musical fidelity a1 -x amplifier
  100. Nad 272 power amp
  101. ? D666AC, B646AC -vs-C2705 ,A1145 - which one substitute which one?
  102. LTspice under Linux/wine
  103. DIY Baxandall network
  104. Bass Kill/Hpass Xover for VCA DJ mixer
  105. Equalize a passive bi-amp system
  106. Preamp?
  107. Schematic Marantz needed
  108. high end version of low end phono stage
  109. Purpose of this capacitor in discrete amplifier?
  110. noise from the potentiometer
  111. Standards of parts naming on PCBs?
  112. tip35c failures response
  113. Repairing a luxman M-120A
  114. Ion Nexus
  115. quad 77 pre 115v voltage
  116. Inter-M REF-2150 schematics
  117. How should I integrate this remote volume control?
  118. transit time in Amplifier
  119. Randall Amp problems
  120. Feedback & audio amp
  121. preamp
  122. Sumo Polaris 310
  123. mosfet 450w irf240 / irfp9240 amp help
  124. confused
  125. PPI vs. Alpine
  126. some transistors of interest
  127. Increasing caps on existing receivers
  128. MUR806 vs FRED bridge
  129. general question about feedback, input impedance, and noise
  130. Why always differential stages?
  131. power supply transformer wiring question
  132. Help interpreting spectrum analyzer results (pic attached)
  133. Cascodes- the truth is out there...
  134. RIAA Preamp
  135. Shunt-regulated 24V DC Power Supply for Preamp Modules
  136. Nad 916 schematics wanted
  137. ETI480 - is "factory" cooling enough?
  138. ETI480 help please
  139. Parasound
  140. All About Amplifiers
  141. looking for dual npn and dual npn smt transistors
  142. biamp used only to drive low frequencies
  143. IRFP240&IRFP9240 power amplifier schematic
  144. Adcom 565 amplifier HELP
  145. OnSemi ThermalTrak
  146. What to do with some beefy bits
  147. some power amplifier recomendations
  148. recalculating resistor values
  149. :Help: Are these transistors interchangeable?
  150. Lyra Connoisseur 4-2L SE: What a masterpiece!
  151. Luxman 1500 Receiver Disassembly
  152. PC O'scope/analyser
  153. help selecting a good amp project
  154. szekeres amp - irf510 equivalent
  155. best small signal FET?
  156. PGA2310 - Setup for highest audio quality
  157. Which OPAMP
  158. Mc Cormack
  159. Hawksford based conceptual amplifier
  160. My first attempt at amp design
  161. ART sla-2
  162. Reference Line Preeminence 1B Remote HELP!
  163. Musical figelity B1 N-channel
  164. I need a portable diy electronic AC volt meter, to avoid transportation of Scopes.
  165. The Sound of Science
  166. Alchemist Kraken Apd6a Mkii
  167. Marantz 1060 parts
  168. LOOKING FOR Schematics for MA5100 - Please
  169. Acoustic Reasearch
  170. I need help decidint which amp to buy
  171. TIP35C Failure
  172. 5534 audio amp
  173. help with hooking up transformer to IEC and psu
  174. Electrocompaniet Aw100MB
  175. What is the problem with this amp? mods requested
  176. Transistor subs..
  177. Adcom 5400 Power Amp Distortion - Need Help
  178. Looking for the best relay
  179. Relation between voltage gain and dB amplification
  180. Chassis for power amp
  181. Jung SR schemo/layout
  182. That source is this?
  183. NAD 1020 Preamp Problems
  184. Transformer substitution help
  185. Carver PM 1200 Protection light on, amp works!
  186. Need NAD 2140 schematic
  187. Technics SA-600
  188. preamp soft start
  189. request high power amplifier
  190. Hawksford output error correction circuit?
  191. Adcom 5400 Power Amp Schematic
  192. Luscious New Design!!
  193. Quick and Dirty X-over
  194. AMP CLASS A to B detection
  195. Looking for Technics SU-V7 Schematic
  196. Leach Amp Mod
  197. acousto-optic modulator and deflector
  198. Testing a power amp
  199. P3A Bridged Into 4 Ohm load
  200. Some topology of current feedback amplifier
  201. Using Many Small Signal transistors for the output stage Update!!
  202. spice up my life :)
  203. classic 8.0B shematics
  204. Will this work?
  205. Application of feedback Quad amps
  206. I want my ETI-480 amp stronger
  207. Help needed repairing HK Citation 12
  208. Krell PAM-5 gain adjust
  209. 300B solidstate?
  210. Perreaux 1150-b Distortion
  211. Legacy OpAmps
  212. Advanced Solid State Amp
  213. Help! Marshal MG50DFX Anybody Anyideas
  214. Have a look at this schematic please
  215. Crest Amp Circuit Schematics
  216. sony amp ta1055
  217. Error Correction Idea
  218. Can I use-35-0-35 volt DC for Leach Amp?
  219. rnrss orates on Power Amplifiers
  220. My Completed Krell KSA 50 Clone - Pics
  221. mox confusion
  222. Obsolete transistors
  223. Neutral amp parameters
  224. transformer substitute question
  225. Pioneer SA-8500 schematic ?
  226. Square wave testing....Cap value
  227. What Speakers Work best with the JLH 10W Class A Amplifier
  228. speaker protection - fail again - help please
  229. NAD 214 protection relay
  230. Spice: how to set IDSS etc?
  231. Western Electric 487c rectifier
  232. Has Anyone Got a Bose Amplifier circuit diagram?
  233. 24 dB/Octave 2/3-Way Linkwitz DC on output after power cut
  234. Volume control question for pre-amp, please help
  235. I though that I mastered TIM
  236. Carlos! This is my amp
  237. Need help with Giesberts HEXFET AMP
  238. Moving the volume knob
  239. Trying to make a car amp. got a big different from the.... ?
  240. Dual mono amp star grounding questions
  241. New homade job
  242. Any mods for Rotel RB 850
  243. onkyo integar A-9711 amplifier
  244. Moog amplifier schematic
  245. Preamp for Power Follower
  246. Exploding output transistors
  247. Improved discrete op-amp
  248. question for all techies
  249. Need expert help on a project, ETI-488 100W
  250. Looking for schematics... Yamaha M-70

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