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  1. Schemes of no-feedback amps
  2. Low power amp by adding current buffer to preamp
  3. Circuit diagram for a Sugden Optima 80
  4. Error in Adcom GFA-555ii Service manual
  5. Pioneer A-602R Capacitor replacement
  6. 185W trial Idea
  7. Critique my PCB (OPA1632 buffer/pre)
  8. TOA P912A Bias settings
  9. Help with Dynaco ST-150
  10. I need help with mosfet circuit
  11. Pioneer amply A- 006
  12. How to use TPC/TMC?
  13. TDA7293 x3 parallel mono_power supply
  14. Single supply class AB amp, with two outputs per channel, how much idle current?
  15. Troubles with 2sk1529/2sj200 amplifier
  16. Power amp trouble :(
  17. pole splitting with miller compensation
  18. Problem with sound
  19. irf 540
  20. Gain for 2 Way Bi-Amp
  21. Beomaster 5000 help!
  22. Distorted output on Yamaha PC2002M
  23. DIY amplifier measurements thread
  24. Pleased to help pioneer a-006
  25. Aragon 4004 MK2 output replacements
  26. Denon DRA-300 - dead left channel
  27. Sansui 8080DB Recap gone haywire.
  28. Can Anyone Help?
  29. Trying to add pre-out/main in CA-410 Yamaha
  30. Adcom GFA 555 II keeps blowing the main line in fuse any ideas?
  31. Musical Fidelity Typhoon power amp
  32. Need Help on ML 331 18CV8 code
  33. Thule spirit IA100
  34. Dual Duty Audio Chair Project
  35. Sziklai buffer circuit: anyone seen this before?
  36. miller comp question
  37. Harman Kardon Restoration issue
  38. Best Cap Replacement For Parasound DR40
  39. Running on just the drivers
  40. Easy math question
  41. Compound OP-AMP
  42. HK 330A stereo lamp
  43. Poineer A-209R
  44. Help identify 20+ year old MOSFETs?
  45. NE5532 Issues
  46. HIRAGA LE CLASS A 30 W
  47. Amp draw, Class A vs AB, oh my?
  48. Grounding & Earthing connections
  49. DC offset issues - Help! - Dean GA40R
  50. Very high THD levels
  51. VAS power dissipation
  52. Differential VAS topology
  53. sx-Amp and nx-Amp
  54. stumped by distortion at moderate-high volume
  55. Quasi complementary OPS vs Complementary OPS
  56. STR-VA555ES quadraphonic mode
  57. Output transistor Re selection
  58. schematics amplifier skp max g 2400
  59. Soundstream DA-1 (Krell made) Repairs needed in Lexington KY
  60. Crown DC-300A II bandpass filter
  61. Bias Diode SV04F - Replacement through Vbe Multiplier (Sony TA-3650)
  62. DH-200/220 upgrade kit.
  63. Germanium to Silicon amp conversion
  64. Levinson ML-7A
  65. Fostex PM-1 Repairs Help Wanted ! Where is it ?
  66. Fostex PM-1 Repairs Help Wanted !
  67. dyna st 400
  68. Tivoli model one problem
  69. Amp + Crossover Recommendations?
  70. QSC Repair
  71. Mcintosh History
  72. Retro Amp 50W Single Supply
  73. Help troubleshooting AMP (DC protection)
  74. BUZ901/906
  75. Bad Crosstalk and RF interference Audio Innovations Alto amplifier
  76. 2SC5200 Power Amplifier
  77. LtSpice = Scruffy ?
  78. Tips for a New MKIII Hx build
  79. Dual O2-Inspired, SMT Headphone Amp
  80. cheap transistor Amp
  81. Stax CA-X -> CA-X Pro. Is it a crazy idea - or not?
  82. Biasing this SS amplifier (Trace-Elliot Super Tramp)
  83. AXL amp
  84. Amp comparable with “The Wire Amp”
  85. NAD C216 110v plugged in 220v
  86. help repair & modification to sony str k780
  87. JC-2 Clone +Vcc Problem...
  88. Amp design attempt number 2 (simpler)
  89. LUXMAN M-02 drivertransistors
  90. Troubleshooting a 3 Stage BJT Amp
  91. Dc offset
  92. Custom Console System
  93. le monstre input caps
  94. What parts do you use in a power amp or preamp?
  95. What FET to choose for HV source follower
  96. Hafler Dh200 What to do?
  97. Sony Receiver str-de805g one channel bad
  98. 1000W Simple PA Amplifier
  99. Transistor pre amp
  100. Krell KSA-150 DC adjustments
  101. Welded transformer stack- good, bad?
  102. Michael Kiwanuka's SOA PAper
  103. Amplifier with no speakers making sound
  104. cannot find circuit diagram for transistor
  105. Hiraga 20 w DC threat
  106. Reverse engineering a John Widgery Sondex/Radford SS amplifier.
  107. Randy Slone's multislope VI limiter
  108. Vintage Yamaha Pro amps - Cascoded sections
  109. Repairs for a B&K ST 140 amp
  110. Power Amplifier Circuit Topology according AD846
  111. power amplifier schema for use outdoor
  112. 2SK69 SPICE model?
  113. Opinions: Hypex vs. Holton
  114. Kenwood KA-405
  115. No NFB line amp (GainWire mk2)
  116. Wow & Flutter test 4 Amplifiers !
  117. Amp recommendation for wharfadale super 8 rs/dd
  118. Component Selection Help for DC Coupled Amp
  119. Getting rid of low level hum in Aragon 4004MKII
  120. Can someone assist me in understanding QSC's grounding scheme in their RMX amps?
  121. How is This Possible???
  122. hand making inductors
  123. Darlington VAS
  124. Kenwood KA-6100 BIAS issues
  125. Please help on Mark Levinson No 331 amp repair
  126. out door power amplifier
  127. Impedance matching in hybrid amp
  128. Asymmetrical Clipping in Modified JLH Output Stage
  129. Modifying Emitter Follower type I
  130. DIY tube alike sound, the magic coating....the hoax!
  131. Schematic for the amc 2n100-5 amp
  132. New type Zobel = <THD
  133. Class A 10W power amplifier - OPA2134+2N3055/MJ2955
  134. 2SA1145 Ltspice model
  135. Simple line buffer
  136. Differential VAS topology Bob Cordell based
  137. Chinese "Hitachi" mosfets
  138. Equivalent transistor to replace MJE243/253 pair
  139. Bob Cordell's Complementary IPS-VAS topology
  140. Amplifier can't drive 5,7 and 13 ohm loads
  141. Adcom power light goes out fast when powered down?
  142. Problems with amplifier MX50 SE
  143. attaching Vbe multiplier to heatsink
  144. Another question about driver bias
  145. EQU PWR OPA PROJECT
  146. Speaker IPOD Power Amplifier P2--- 6W
  147. Differential Amplifier Simulation???
  148. Compensate Amplifiers or Not ! & How best ?
  149. Mcintosh C28 Hum
  150. Which Technics is best
  151. Noob Question Re: Bridging Any Stereo to Mono
  152. Things to consider for the Plate Amplifier
  153. weird solid state problems
  154. Denon AVR-1709 intermittent protect
  155. The Mitronic PA100 2SJ50/2SK135 ready for test.
  156. Searching schematics C-Audio ST400
  157. an STK 30XX solution
  158. Small Head Amp Project
  159. GFA-535: Looking for troubleshooting help
  160. Current Drive for Loudspeakers
  161. Holfi Battriaa documentation wanted
  162. Need help with technics sa-tx50
  163. Are leds noisy ?
  164. 2stageEF high performance class AB power amp / 200W8R / 400W4R
  165. TPC vs TMC vs 'pure Cherry'
  166. Need help troubleshooting clone amp
  167. Square Buttons for NAD-3020
  168. Leach LMF-1 dead channel
  169. Low noise NPN with ECB(123) pinout
  170. Alesis RA300 Short
  171. Looking for a high end ss power amp kit
  172. Denon AVR1906 Repair
  173. P3A AC Calculating
  174. Hughes & Kettner Cream Machine
  175. A new hybrid concept: C-Vac
  176. ESp P3 amp on Cheap 150w amp board
  177. ESP P3A component recommendations
  178. Critique my first PCB routing attempt
  179. AR A-07 amp with ticking phono stage
  180. Jands 920 temp cut-out
  181. audiophile's project sourcebook
  182. LME49830 Project/Boards...
  183. How to wire MTM (or 2.5) woofers if 5 channels available & are doing active XO's??
  184. yamaha a-45 amp customising
  185. 3000W speakers amplifier required
  186. Front panel removal HK 330
  187. chord cmp2600 sounds really low on high volume
  188. PCB routing examples
  189. PCB track size and spacing
  190. Class AC
  191. Looking for DX Blame MK III PCB's
  192. Humming toriodal transformer....?
  193. PPI Precision Power a1200.2 repair?
  194. Sony TA-1130 diagram
  195. Newbie idiots advice please
  196. Denon PMA 737 schematic needed
  197. Used NAD 3060 or LM3886 stero kit?
  198. Super TMC
  199. Looking for some help with Adcom gfa-5503
  200. Luxman RX-102 AM Tuning Scale Problem
  201. Reasonably priced amplification for 4 way active crossover system?
  202. Resurrecting a defunct A3000
  203. Need Schematics for repair
  204. Best way to apply UV soldermask paint?
  205. Sony STR-DE415 loud pop noise when cold
  206. Overstock.com kl-2400
  207. "classless" amplifier simulation
  208. Discrete 35W kit vs LM1875
  209. VAS Biasing
  210. relay coil that heats.
  211. Heatsink Colour ?
  212. Thinking Inside the Box
  213. Popping in the Old Harman Kardon 930
  214. Need help fixing Hafler P505
  215. Silence from my amp
  216. Any Ideas on How to find a Radio Shack MPA@250 amp shematic?
  217. NAD PowerDrive ... How does it really work?
  218. Please help me solve my ground loop issues - Pics and layout attached.
  219. Some dumb rookie questions about output power
  220. Audiolab 8000A low volume from cd input than tuner input
  221. Virtual Ground (A Regulated Rail Splitter)
  222. Marantz pm57 distortion
  223. A DIY amp project to match my transformer?
  224. Enlighten me please. which amp?
  225. Super-complementary output stage
  226. the Golden Gain Ratio
  227. Jands series 920 bias setting?
  228. bias spreader bypass cap
  229. question about transistor package types
  230. Onkyo M-504 troubles - need some advice
  231. Bose 4401 pot
  232. FET drivers for BJT outputs?
  233. Electrocompaniet AW100 case
  234. I want to build a 1-2W class a amplifier for use in a 5,25" pc expansion slot
  235. B&K avr 507 blows fuses
  236. cyrus aca7.5 help
  237. Class A, 4 Watt, No Feedback, Simple Circuit, Great Sound
  238. help explain the current source behavior
  239. Need NAD 3020b service manual
  240. Quad 405 amplifier
  241. Trying to test Hafler dh-500 mosfets
  242. Repairing ElectroVoice CPS4 -- need schematic!!
  243. Noisy phono stage on vintage Pioneer SX-434
  244. LIN LK-85 SOUNDING TINNY AND FLAT
  245. Multiple feedback LP filter ?? Help??
  246. Dynaco PAT-4 input questions
  247. H/K AVI 200 & Sony STR-525 Amp Problem???
  248. DC Coupled amplifier capacitor vlaues
  249. How to measure/trigger/view low level 60/120hz hum?
  250. How did I blow this fisher BA6000

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