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  1. Strange transformer test results
  2. Audionics CC-2 with a buzz
  3. On-Board Guitar Pickup Preamp: Op-Amp Choice?
  4. A Low Distortion Amplifier Based on a "Tandem" Correction Scheme Powered by a Modifie
  5. Peavey Series 300 mixer/amp scehamtics
  6. Peavey Renown 112 schematics
  7. Low Noise opamps for 2014?
  8. VAS current limit for Blameless Amp
  9. 12V fan replace 24V?
  10. peavey pv2600 dc kick on power off
  11. need to build guitar pre-amp
  12. unstable DC offset
  13. 100W Class B amplifier project
  14. NAD 3240PE schematic - READABLE!
  15. Clipping indicator problems
  16. GFA 535 Input Sens & Preamp Output Voltage
  17. To reask a question that's been asked a million times, any harm in leaving your class
  18. !!!problem in increasing voltage capacity in power amplifier
  19. Challenge Mark 1B Receiver-Pioneer Clone??
  20. Sony STR-DB940 no sound
  21. aragon 4004 Mk 2 restoration
  22. MX50 amplifier compensation tuning
  23. Crundh bmx1000
  24. Sony TA-FB940R problem
  25. Power transistors in Luxman L-430
  26. Need help diagnosing amplifier fault (oscilloscope examples inside)
  27. Luxman C-120a Volume Pot extra terminals?
  28. Technics SA-EX 300
  29. Crown XLS 602 ( D series )
  30. Do amps without gnfb ring into capacitive loads
  31. ZCA amplifier DC Servo any possibilities?
  32. Rotel RA04 SE,Service Manual/Schematic
  33. NAD C370 Diagnosis / Repair Help
  34. IRF610 SRPP (THD=.35%@1W)
  35. Hiraga 30W.
  36. Simple op-amp question
  37. Laney AH200
  38. Fisher 220T needs help...
  39. B&K ST-202+ hum
  40. Ferrograph F307
  41. Bias and ultimate phase
  42. GainWire-CLASS-A-poweramp NGFB
  43. What about this amplifier?
  44. Yamaha M-4 popping noise and level fluctuations
  45. About preamp out - amp in matching.
  46. conterpoint NPS-100E help
  47. carver ca400
  48. Pioneer SX838 has hot components on power supply board
  49. BG7 v4.2 - my own blame
  50. Spirit Folio F1 14:2 No XLR Output?
  51. NAD power ratings?
  52. Who has the strange/earliest version of Mcintosh MC250 schematic?
  53. AB class amplifier in LTspice
  54. Blown capacitor, symptom or cause?
  55. Sansui noisey controls
  56. I need a mono preamp
  57. Hiraga amplifier Mosfet insulation
  58. IRF511 Simple SRPP mosfet amplifier circuit
  59. Peavey PV900 voltage measurements
  60. Hybrid single-ended digital input.
  61. Possible DC on output of my pre-amp?
  62. Bias pots keep rising?
  63. A.S.P. - Autonomous Speaker Protection system
  64. audio analogue maestro cd mk1
  65. Need help with Denon AVR 1909
  66. Loudspeaker-Amplifier Interaction
  67. Need help with a Rotel RA-970BX
  68. Strange slight hum + noise issue
  69. SS Class A Input/Output AC-coupling caps: How big = too big?
  70. Audiosector LM3875 Amplifier Help! / Questions
  71. Cree CMF10120D
  72. Calculating current draw of SS Class A amp
  73. B&K amplifier ST140
  74. Voltage Regulator 'CV/ABV'
  75. RJM Audio R40 (make fun of my amp)
  76. monacor sta-500 schematic
  77. Schematic Monacor sta-500
  78. Electrocompaniet power amp repair
  79. Searching fro Proton 1100 Preamp
  80. Very simple quasi complimentary MOSFET amplifier
  81. subwoofer amplifier with 2sa1943&2sc5200
  82. Rotel RA-04: There is still sound even volume control is turned to zero.
  83. Simple class b amplifier problem
  84. Home theater subwoofer input board question
  85. Luxman LV-105u MOSFET upgrade success
  86. UA Solo-110 Regulator Problem
  87. Little dual mono... Any ideas?
  88. COUNTERPOINT NPS-100 BIAS
  89. Advice for new DIY Ampli
  90. modifying a Sanyo JCX-2600K
  91. Re-Capping Luxman M-120a Power Amp Advice sought
  92. Mark Levinson 23.5 bias procedure
  93. Recommend me a project.
  94. Opamp based power amp
  95. 25wpc mosfet mapl-in kit wipes floor with 2 x cambridge A60 biamp
  96. solid state plate amp KIT
  97. Just an observation about voltage swing in actively crossed-over tweeters.
  98. dirkwright line stage preamp
  99. Sought expert advice on my amplifier circuit
  100. Smokin' Marantz SR1000
  101. conterpoint NPS-100
  102. Dx Amplifiers, all models will be shown here
  103. A more efficient class A output stage
  104. Musical Fidelity A1 Channel Imbalance
  105. Headphone amp - POP sound will powering ON and OFF
  106. Multi pack smd/tht input transistos
  107. The many versions of the NE5532 and it is confusing!
  108. Quad 34 on/off switch. Desperate.
  109. Are Proton AA1660 amplifier still available?
  110. Recap with Reason: Sony TA-N80ES Amplifier Refurbishing Project
  111. Output power - high voltage or high current?
  112. Faulty JVC MX-GC5
  113. NAD 1300 - Problem with static
  114. voltage doubler for TPS7A4700
  115. Ultra Low noise voltage regulator IC till 80Volts?
  116. NAD amplifier disabling Power Envelope circuit
  117. STR-DN1000 power-up problem
  118. What solved the problem...
  119. Kenwood Ka-2600
  120. Rotel RA840BX service
  121. Finishing a custom made power amp...
  122. aqvox + primare
  123. NAD 3300 Amplifier repair question
  124. Proton AA1660 switch issue
  125. 2sk1058 for class A what should be the max heat dissipation preferred?
  126. need help with crest 2500 poweramp
  127. (ask) ZCA 2sk1058 mosfet amplifier
  128. Threshold SA-1 keep main fuse blown
  129. Two audio schematics-comment?!
  130. SuperA Class AMP "Nataly EA2012"
  131. V.2012 PRO. Composite Audio amplifier
  132. 900W Class H Power Amplifier
  133. PCB for audio ammplifier with mj15003/mj15004
  134. Creek 4240 Volume / channel issue
  135. Peavey PV-500 schenmatics.
  136. output inductor placement idea, does it work
  137. Help with ocillating amplifier !!
  138. What headphone amp to build?
  139. The David N.J.White 100W MOSFET amplifier
  140. "Dumb" Krell Class A Question
  141. Quad 306, an underrated masterpiece?
  142. Yamaha PC-2002M
  143. Marantz 1090 shorted output stage
  144. Audiophiler Capacitor Red compared to any Mundorf Supreme as coupling cap?
  145. curious observation re: Hafler TA-1100
  146. LME49810 minimum safe working voltage not according to the datasheet
  147. Experience with Savoy G3
  148. Rotel RA-840BX3 repair?
  149. Help hooking up transformer
  150. Hafler dh200 2sk134 mosfet transistor
  151. pioneer sx1010 zener diode voltage
  152. Adcom GFA 5400 questions
  153. Measuring Power Amp Output Impedance
  154. Skytec PA-200, smoke and volume not working
  155. NAD 7155 Preamp help needed
  156. cyrus 8v2 with buzz after 2 hours
  157. Wilson-Cfp by Stee
  158. Problem with DC offset and stability
  159. Sansui AU-517 Capacitor Recommendation
  160. Acurus RL11
  161. Kenwood KR-V55r DC present on both channels. A lot.
  162. Pioneer sx 1010 power problem
  163. Onkyo M-504 Upgrade to LED lights? Help!
  164. Subwoofer amp - too much bass!
  165. Help to fix C-Audio GB402 Amplifier
  166. NAD C320 fixed (another protection circuit problem)
  167. If replacing differential input pair; also replace current source transistor?
  168. One single output pair per channel is a good thing ?
  169. Quad 99 system transformer hum
  170. calculating the resistor & capacitor values in class a amplifier
  171. Lots of noise when input is unconnected
  172. Mosfet source follower output impedence
  173. Harman/Kardon 430 - Need help with strange powerup noise
  174. Gallien Krueger 800RB Hi Channel Problem
  175. Transistor heatsink question
  176. lme49810 DC servo circuit.
  177. 300w power amp
  178. What can cause noise in this design?
  179. SYBELIUS 3 plus - ultimate high design
  180. Help repairing Sub AMP
  181. Sansui Diamond Differential PA Simulation and possible build
  182. Krell KV300i input selector board removal
  183. Replacment transistor for hitachi 2sc2b1 ? Its in a Sansui AU 555 A
  184. Yamaha M45 low pwr issue pretty interesting.
  185. Brocken amp..noise like thunder
  186. Rails Decoupled SE Amplifier
  187. DVD/CD output and power amp input specification.
  188. Bose 550 Receiver Has DC on outputs
  189. AEQ model 250 schematic
  190. Transformer coupling instead of cap?
  191. Krell 200S
  192. HH Electronic VX-150 MosFet
  193. Power supply for power amp.
  194. Making a VCO. Design help needed.
  195. DoZ in a Hafler 220? Or. . .?
  196. Roland RE-201 tapeecho improvements
  197. Burmester 933 mk2 Clone from Jims Audio
  198. Harman-Kardon hk6200 repair
  199. Needed - Service Manual For Luxman L-110
  200. Powering front end of amplifier
  201. New Project: The Silver Fox
  202. Dual Diff Amp Question
  203. What can I build with these? 4 pairs of 2SC5200/2SA1943
  204. LM 3915 mode change
  205. Pioneer SX-1080, after re-cap problem w. center voltage & idle current
  206. CFA Enhancements
  207. Peavey PV900 schematics
  208. Power amp ideas.
  209. Got taken on yasmaha m45
  210. Marlboro PA chip conversion question
  211. Diagrams required
  212. Another 100W hifi amp
  213. Repair help needed - Creek Destiny
  214. Power Supply for PGA2310 project
  215. yamaha b1 amp
  216. Parasound HCA-800II and C/PT-600
  217. Peavey Delta Blues Reverb Mod
  218. Help, In need of Service Manual for Cambridge Azur 640A V2
  219. NAD 7250PE Repair From Driving a Shorted Voice Coil?
  220. Need help with college project - Trying to build a 3 stage amp but I'm lost
  221. Digital Attenuator for Balanced Lines?
  222. Onkyo R1 AV amp
  223. GFA 5503 Bias adjustment
  224. Onkyo Dynamic Four 800 - Schematic for modification
  225. yamaha A-1020 amp
  226. Changing my old VFA designs into ONE-BEND CFA plus Current Drives
  227. H/K Citation Sixteen Parts
  228. Rotel Rb890 hum on one Channel
  229. Sansui AU555-A D001/D002 replacment diode?
  230. Diamond Wilson CFP - Roger Amp
  231. DIY Buffer Pre Amplifier with phono stage
  232. Single ended class a build. noob question
  233. Experimentations on Regulators
  234. Perfect Stranger - Innovative Amplifier
  235. Pioneer amp board with IC drivers.
  236. Technics SA-80 distorted right channel
  237. Please help educate - T300 & VSSA level matching
  238. transformer amplifier zero feedback
  239. What do these resistors do? :(
  240. Watercooled HEXFET Power Amplifier
  241. A simple question about performance
  242. bridge adapter
  243. CROWN DC-300A SERIES II RESTORATION
  244. OLDER PIONEER PREMIER Specific Amp line
  245. Resurrecting a BGW 750B
  246. Op-amp swapping MC330789 to OPA627
  247. Sudgen p28 Bias current
  248. Rotel service manual biasing...
  249. My Blameless
  250. Amber Series 70 Fuses

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