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  1. Quad 44/405
  2. finding feedback line and gain controlling resistor
  3. How to bias Long tail pair....??
  4. LM3886 driving long cable instability
  5. emitter resistors - how to calculate for discrete opamp.
  6. Rotel RA-870 intermittent channel (simple fix?)
  7. 250W amp with IRFP240 & IRFP9240
  8. Quad 303 IEC power socket upgrade
  9. fixing nad c325bee
  10. Pioneer QX40000 - When replacing bulb, shorted bulb to ground. No now display
  11. Need help for Musical Fidelity B-1 Integrated Amp
  12. Dx Blame MKIII-Hx - Builder's thread
  13. Best Amp for my Speakers
  14. Could you recommend me a SAE technician
  15. Has anyone used this volume control?
  16. Transistors recommended for new designs
  17. Hughes AK-100
  18. Luxman Integrated Amplifier L550 ("L-550") Capacitor Replacement in the Power Supply
  19. Harman Kardon 775 mono amps earthing
  20. Medium power mosfet amp
  21. Adcom GFA 565 Diodes
  22. ADCOM GFA-585 simultaneous distortion alert
  23. Lateral/Vertical mosfet conversion
  24. Yamaha cdx1030 Capacitors
  25. Why a new A/V receiver can not sound as good as a 30-year-old one
  26. Help Identify YAMAHA amp
  27. Need help repairing Yorkville MP6
  28. Parasound Halo A23 problem
  29. vintage amp
  30. rotel michi and atc schematics here...
  31. Hx-Home Edition and Hx Mini Edition will be released December, 24th
  32. Minimizing dc offset in simple amplifiers
  33. Naim Nap 250 (135) specs
  34. current feed back amplifier
  35. Pioneer SX-1250/SX-5590 schematics for repair
  36. Any crazy idea?
  37. ElectroVoice 7300A trouble
  38. Bridge an stereo amplifier to MONO
  39. How to do floating cascode on the P-channel side?
  40. IMPEDANCE MATCHING FOR I/V TRANSFORMER
  41. Preventing bjt breakdown
  42. information requested
  43. Luxman A373 - D375 - T353 Integr. Amp - CD - FM-Tuner
  44. Onkyo M-508 clicking sounds
  45. Bypassing main caps in Hafler DH-200
  46. Help Ampeg SVT-3 Pro
  47. Marantz SR2000 Receiver: Worth saving?
  48. 6 amp circuit one power supply unit advantages/disadvantages
  49. Denon DRA-685 NO POWER
  50. New Hafler DH-200 Board?
  51. Voltage Controlled Signal Amplitude
  52. Audible benefit from higher 'headroom.'
  53. Linx Vega power amp...
  54. Feedback affects Soundstage, Imaging, Transients ?
  55. Carver CT-29v Preamp Service Manual ?
  56. Phase Linear 400 Series Two Blowing fuses
  57. information on audiomobile sa1600?
  58. Updates on my New Ovation SCA-1 pre-Amp
  59. high voltage bjts
  60. Class-A Opamp with output stage
  61. Rotel RB-871 Mark II Channel Imbalance
  62. Newbie repairing Hafler DH220 advice needed
  63. AKAI AM-U1
  64. Need Nearfield amp recommendation
  65. Need Nearfield amp recommendation
  66. how to dim an LED
  67. I did a stupid thing... (Nad C320 red light)
  68. Vu meter, questions
  69. 2N3055 transistor, which brand to buy?
  70. Harman Kardon HK770 vs AVR254
  71. Jfet - Mosfet Amplifier2
  72. Help on bias multiplier
  73. DX Precision I Simplified, Help
  74. Problem with 100W Audio Amplifier!?
  75. Aikido meets Zen
  76. newbie question
  77. Leach Low Tim frontend tweak
  78. 100W mosfet amplifier with IRFP250 - Help!?
  79. Idling current in Rega Mira 1, 2 or 3
  80. Which (parts) of preamps & amps did John Curl design
  81. Best place for Adcom 565 repair? HELP!
  82. what causes 'thick' sound?
  83. Advice on upgrading a Denon PMA-925R
  84. Sony V333ES Amp with a rapid clicking relay and no power
  85. lm3886 power output question
  86. Change the outputs in my Crown D60?
  87. Repairing a jbl 1201.1II...
  88. Crown XLS Series - Fuses??
  89. Nuforce Icon Amp... Dissassembly?
  90. Marantz PM7000 distorsion problem in R channel
  91. Counterfeit transistors ?
  92. Marantz PM7003 help with schematics???
  93. Making a preamp
  94. How much gain does Nakamichi CA-7 pre amp have?
  95. Kit Recommendations?
  96. Output Impendance
  97. Nakamichi Receiver 1 Remote Failure
  98. Marantz PM7003 Service Manual desperately needed
  99. Bjt vs mosfet drive
  100. preamp static troubleshooting
  101. question
  102. Krell KSA-300S cliks off
  103. replacement cyrus 2 rocker switch .
  104. Switching source and levels in a multi-channel amplifier
  105. power amplifier
  106. Yamaha Power Amp Circuit Theory Help
  107. circuit switching
  108. CCD-2400 Concept Car Amp
  109. Powering on my LCD causes my amp to hum through the speakers
  110. ideas on fixing amp?
  111. a / b Selector Switch - Stupid Question.
  112. Cyrus One Amplifier - One Channel Silent - What could it be?
  113. Quad 606 into a 2 ohm load
  114. Hiss sound from DIY speaker, anyway to remove it ?
  115. Opamp maximum output current (NE5532 or similar)
  116. Soliciting advice on mods for Soundcraftsmen FET PR1800
  117. Help carver M400 Oscillating
  118. mosfet opamp
  119. A Modified P3A
  120. Any Jean Hiraga class A PCBs or kits?
  121. Running Power Amplifier in Inverted Mode
  122. Baker clamps?
  123. HRII to operate with 55V - a higher power HRII
  124. Rack, cabinets, chassis dimensions
  125. What known accurate spice models are around?
  126. 45W@8R 70W@4R CLASS B SO LOW DISTORTION.
  127. Carlsbro 80 GLX Problem
  128. blown 2sj201 and 2sk1530
  129. A Class AB Amp for diyAudio
  130. common source amplifier with CFP output
  131. Fairly fast buffer
  132. 'Low performance' transformer tests
  133. 2sc5200 a1943 amp suggestions needed
  134. Aura Evolution VA100 Mk2. Which transistor is which?
  135. Nothing to see here
  136. Revox A78 Speaker Connnections
  137. Help the Apex 550W Class-B?!
  138. Depleation Mode MOSFET current sink.
  139. Need schematic for BASH INDIGO 600080 subwoofer
  140. Ibanez SW65 Amp help
  141. Which SS kit good for tube hybrid?
  142. Do you like Class A?
  143. Lateral mosfet driving question - Hitachi amplifiers
  144. Help, need licensed electrician to fix fusebox, run seperate outlet, etc.
  145. HELP NEEDED!!! Broken Potentiometer.. :/
  146. Need help diagnosing/fixing/finding something to do with Marantz 2225
  147. Modifying Emotiva XPA-5
  148. simple question about PS for DX Blame MKII
  149. Need help fixing guitar amp
  150. Weird Power Transister Sound.
  151. Engineer, help please - Neg. feedback/infilters
  152. Budget amp work-over :)
  153. Circuit schematic question for Rotel amp.
  154. Require correct substitute for B512
  155. Bias servo in the AN-1651
  156. The design of active crossovers
  157. Poweramp with IRFP4668
  158. Leave Adcom GFA-585 Turned on?
  159. unbalanced single or dual channel mosfet amp input OP circuit
  160. electrocompaniet ec 4.7
  161. H/K Citation 11 substitute for FET Q508
  162. My Dead Arcam 200 AVR project/helpHi all 0/ Basically I have an old Arcam 200 AVR tha
  163. Need help identifying SMD device for NAD T765 receiver. thx
  164. Transistor replacements
  165. bypass capacitor size
  166. Overheating Class A
  167. jFET Power Buffer
  168. JLH Class A headphone amp- where to buy from ?
  169. Bias Drifting Higher?
  170. Info On Digitech Amp Simulator
  171. Tweak of Luxman SQ 507x
  172. Quad 405-2, 34 & FM4...
  173. ZEUS TWO AMP
  174. Sony STR-6065 Receiver Left Channel Issues
  175. electrocompaniet ec 4.7
  176. 1000W PA Quasi NMOS Amp - Class H Stepdriver possibile ?
  177. Help needed on replacing Adcom 545 power supply caps!
  178. Poor bass in Yamaha receiver
  179. Poor bass in Yamaha receiver
  180. Class AB is being mismaligned ?
  181. Silicon Chip Ultra-LD Mk 3 < 0.004% THD @ 20KHz
  182. 2sa1216/2sc2922 designs?
  183. Hybrid situation
  184. HK930 with no output
  185. how do they sound
  186. THD vs output power in LTspice
  187. the Perfect preamplifier TWO
  188. jfet without biasing
  189. Steg K24 Vs Phoenix Gold 2125 ms
  190. Adcom GFA-545; What's all the buzz about?
  191. Forte model 4 article
  192. Marantz SR4500
  193. another "STAR" ground question
  194. Optocoupler Speaker Protection
  195. PMI AN-24
  196. NEW DESIGN L 150W FET AMPLIFIER
  197. Hiss in one channel
  198. Denon PMA900V idle current adj
  199. Need advice on what to build...
  200. Crest CA9 / P.Audio PA9... differences?!
  201. Samples from ONsemi fakes ?
  202. Silicon Chip ULD Mk3 amp - 0.0006% distortion
  203. Service manual amp Luxman M300
  204. Musical Fedelity A100 pre outs?????
  205. Any links to "Are Op Amps Really Linear?" by Barrie Gilbert?
  206. HK6350 tuning ?
  207. OLG Phase vs Output Phase
  208. Use a shielded connector?
  209. New World Order (audio conspiracy theory)
  210. wharfedale pm 600 problems
  211. 2SK332F spice model for LTspice
  212. Blown Parasound HCA-2205a
  213. psu transformer choice ?
  214. Amp with multiple stereo speaker outputs
  215. So this is a "perfect" amp? But innovative?
  216. Common base VAS
  217. Mixed-mode feedback gain formula
  218. NEED A 600W@4E AMP .............WHICH TO START WITH
  219. Distorts after about twenty minutes
  220. Faulty transistor?
  221. mjl
  222. What amp/amps boards would you like to see produced for your project?
  223. My last PA
  224. Output Relays
  225. low output capacitance buffer?
  226. Nytech service manual
  227. 400watt/800watt irfp240 irfp9240 audio amplifier
  228. Why battle with Chinese board manufacturers?
  229. Negative output impedance
  230. trying to fix RANDALL RH-100 - need help
  231. P channel jfet preamp circuit
  232. TLE-2426 as "negative" virtual ground?
  233. In need to solder!!
  234. Need help with my bi-amp system
  235. GFA-555 II Thermal
  236. eq mic
  237. Arcam delta 290 switch to Power amp mode
  238. M3/Sigma 11 Build check
  239. WHAT is this amps trafo ?
  240. Chinse Dx amp compensation capacitor
  241. Ab International 322t
  242. Burns Orbit Three Guitar Amp info required
  243. Second loss for National and Semi Industry
  244. Tobey & Dinsdale amp in Wireless World
  245. Delay Amp power up using a relay.
  246. Carver PM1200 rail voltage and idle bias settings
  247. Heathkit AA 1640 mods
  248. NHT Subtwo (Amplifier)
  249. new vs old harman receivers
  250. finished AV400 help with problem