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  1. Input Impedance Mod?
  2. CM Degeneration resistor noise
  3. Graphic EQ beginner upgarde project
  4. 20 watt class A amplifier
  5. PCB's for NMOS500 or ACTRK600 Amplifiers
  6. Simple class A amp bias
  7. Yamaha CR-2020 power supply issues
  8. Grounding and Minimizing the Current Loops
  9. Design Challenge: 2 way active speaker using bi-amp
  10. Quad 405-3 power amplifier weird noises
  11. Crest 4801 revival ...
  12. What can i made from 2x55VAC 1000W toroidal transformer ?
  13. Minor Loop Stability Analysis for dummies
  14. Easy enough?
  15. Starter builds
  16. Heatsink Temp & Bias control idea
  17. hk 730
  18. Help with an OP-amp filter circuit from car amp
  19. Schemes of no-feedback amps
  20. Low power amp by adding current buffer to preamp
  21. Circuit diagram for a Sugden Optima 80
  22. Error in Adcom GFA-555ii Service manual
  23. Pioneer A-602R Capacitor replacement
  24. 185W trial Idea
  25. Critique my PCB (OPA1632 buffer/pre)
  26. TOA P912A Bias settings
  27. Help with Dynaco ST-150
  28. I need help with mosfet circuit
  29. Pioneer amply A- 006
  30. How to use TPC/TMC?
  31. TDA7293 x3 parallel mono_power supply
  32. Single supply class AB amp, with two outputs per channel, how much idle current?
  33. Troubles with 2sk1529/2sj200 amplifier
  34. Power amp trouble :(
  35. pole splitting with miller compensation
  36. Problem with sound
  37. irf 540
  38. Gain for 2 Way Bi-Amp
  39. Beomaster 5000 help!
  40. Distorted output on Yamaha PC2002M
  41. DIY amplifier measurements thread
  42. Pleased to help pioneer a-006
  43. Aragon 4004 MK2 output replacements
  44. Denon DRA-300 - dead left channel
  45. Sansui 8080DB Recap gone haywire.
  46. Can Anyone Help?
  47. Trying to add pre-out/main in CA-410 Yamaha
  48. Adcom GFA 555 II keeps blowing the main line in fuse any ideas?
  49. Musical Fidelity Typhoon power amp
  50. Need Help on ML 331 18CV8 code
  51. Thule spirit IA100
  52. Dual Duty Audio Chair Project
  53. Sziklai buffer circuit: anyone seen this before?
  54. miller comp question
  55. Harman Kardon Restoration issue
  56. Best Cap Replacement For Parasound DR40
  57. Running on just the drivers
  58. Easy math question
  59. Compound OP-AMP
  60. HK 330A stereo lamp
  61. Poineer A-209R
  62. Help identify 20+ year old MOSFETs?
  63. NE5532 Issues
  64. HIRAGA LE CLASS A 30 W
  65. Amp draw, Class A vs AB, oh my?
  66. Grounding & Earthing connections
  67. DC offset issues - Help! - Dean GA40R
  68. Very high THD levels
  69. VAS power dissipation
  70. Differential VAS topology
  71. sx-Amp and nx-Amp
  72. stumped by distortion at moderate-high volume
  73. Quasi complementary OPS vs Complementary OPS
  74. STR-VA555ES quadraphonic mode
  75. Output transistor Re selection
  76. schematics amplifier skp max g 2400
  77. Soundstream DA-1 (Krell made) Repairs needed in Lexington KY
  78. Crown DC-300A II bandpass filter
  79. Bias Diode SV04F - Replacement through Vbe Multiplier (Sony TA-3650)
  80. DH-200/220 upgrade kit.
  81. Germanium to Silicon amp conversion
  82. Levinson ML-7A
  83. Fostex PM-1 Repairs Help Wanted ! Where is it ?
  84. Fostex PM-1 Repairs Help Wanted !
  85. dyna st 400
  86. Tivoli model one problem
  87. Amp + Crossover Recommendations?
  88. QSC Repair
  89. Mcintosh History
  90. Retro Amp 50W Single Supply
  91. Help troubleshooting AMP (DC protection)
  92. BUZ901/906
  93. Bad Crosstalk and RF interference Audio Innovations Alto amplifier
  94. 2SC5200 Power Amplifier
  95. LtSpice = Scruffy ?
  96. Tips for a New MKIII Hx build
  97. Dual O2-Inspired, SMT Headphone Amp
  98. cheap transistor Amp
  99. Stax CA-X -> CA-X Pro. Is it a crazy idea - or not?
  100. Biasing this SS amplifier (Trace-Elliot Super Tramp)
  101. AXL amp
  102. Amp comparable with “The Wire Amp”
  103. NAD C216 110v plugged in 220v
  104. help repair & modification to sony str k780
  105. JC-2 Clone +Vcc Problem...
  106. Amp design attempt number 2 (simpler)
  107. LUXMAN M-02 drivertransistors
  108. Troubleshooting a 3 Stage BJT Amp
  109. Dc offset
  110. Custom Console System
  111. le monstre input caps
  112. What parts do you use in a power amp or preamp?
  113. What FET to choose for HV source follower
  114. Hafler Dh200 What to do?
  115. Sony Receiver str-de805g one channel bad
  116. 1000W Simple PA Amplifier
  117. Transistor pre amp
  118. Krell KSA-150 DC adjustments
  119. Welded transformer stack- good, bad?
  120. Michael Kiwanuka's SOA PAper
  121. Amplifier with no speakers making sound
  122. cannot find circuit diagram for transistor
  123. Hiraga 20 w DC threat
  124. Reverse engineering a John Widgery Sondex/Radford SS amplifier.
  125. Randy Slone's multislope VI limiter
  126. Vintage Yamaha Pro amps - Cascoded sections
  127. Repairs for a B&K ST 140 amp
  128. Power Amplifier Circuit Topology according AD846
  129. power amplifier schema for use outdoor
  130. 2SK69 SPICE model?
  131. Opinions: Hypex vs. Holton
  132. Kenwood KA-405
  133. No NFB line amp (GainWire mk2)
  134. Wow & Flutter test 4 Amplifiers !
  135. Amp recommendation for wharfadale super 8 rs/dd
  136. Component Selection Help for DC Coupled Amp
  137. Getting rid of low level hum in Aragon 4004MKII
  138. Can someone assist me in understanding QSC's grounding scheme in their RMX amps?
  139. How is This Possible???
  140. hand making inductors
  141. Darlington VAS
  142. Kenwood KA-6100 BIAS issues
  143. Please help on Mark Levinson No 331 amp repair
  144. out door power amplifier
  145. Impedance matching in hybrid amp
  146. Asymmetrical Clipping in Modified JLH Output Stage
  147. Modifying Emitter Follower type I
  148. DIY tube alike sound, the magic coating....the hoax!
  149. Schematic for the amc 2n100-5 amp
  150. New type Zobel = <THD
  151. Class A 10W power amplifier - OPA2134+2N3055/MJ2955
  152. 2SA1145 Ltspice model
  153. Simple line buffer
  154. Differential VAS topology Bob Cordell based
  155. Chinese "Hitachi" mosfets
  156. Equivalent transistor to replace MJE243/253 pair
  157. Bob Cordell's Complementary IPS-VAS topology
  158. Amplifier can't drive 5,7 and 13 ohm loads
  159. Adcom power light goes out fast when powered down?
  160. Problems with amplifier MX50 SE
  161. attaching Vbe multiplier to heatsink
  162. Another question about driver bias
  163. EQU PWR OPA PROJECT
  164. Speaker IPOD Power Amplifier P2--- 6W
  165. Differential Amplifier Simulation???
  166. Compensate Amplifiers or Not ! & How best ?
  167. Mcintosh C28 Hum
  168. Which Technics is best
  169. Noob Question Re: Bridging Any Stereo to Mono
  170. Things to consider for the Plate Amplifier
  171. weird solid state problems
  172. Denon AVR-1709 intermittent protect
  173. The Mitronic PA100 2SJ50/2SK135 ready for test.
  174. Searching schematics C-Audio ST400
  175. an STK 30XX solution
  176. Small Head Amp Project
  177. GFA-535: Looking for troubleshooting help
  178. Current Drive for Loudspeakers
  179. Holfi Battriaa documentation wanted
  180. Need help with technics sa-tx50
  181. Are leds noisy ?
  182. 2stageEF high performance class AB power amp / 200W8R / 400W4R
  183. TPC vs TMC vs 'pure Cherry'
  184. Need help troubleshooting clone amp
  185. Square Buttons for NAD-3020
  186. Leach LMF-1 dead channel
  187. Low noise NPN with ECB(123) pinout
  188. Alesis RA300 Short
  189. Looking for a high end ss power amp kit
  190. Denon AVR1906 Repair
  191. P3A AC Calculating
  192. Hughes & Kettner Cream Machine
  193. A new hybrid concept: C-Vac
  194. ESp P3 amp on Cheap 150w amp board
  195. ESP P3A component recommendations
  196. Critique my first PCB routing attempt
  197. AR A-07 amp with ticking phono stage
  198. Jands 920 temp cut-out
  199. audiophile's project sourcebook
  200. LME49830 Project/Boards...
  201. How to wire MTM (or 2.5) woofers if 5 channels available & are doing active XO's??
  202. yamaha a-45 amp customising
  203. 3000W speakers amplifier required
  204. Front panel removal HK 330
  205. chord cmp2600 sounds really low on high volume
  206. PCB routing examples
  207. PCB track size and spacing
  208. Class AC
  209. Looking for DX Blame MK III PCB's
  210. Humming toriodal transformer....?
  211. PPI Precision Power a1200.2 repair?
  212. Sony TA-1130 diagram
  213. Newbie idiots advice please
  214. Denon PMA 737 schematic needed
  215. Used NAD 3060 or LM3886 stero kit?
  216. Super TMC
  217. Looking for some help with Adcom gfa-5503
  218. Luxman RX-102 AM Tuning Scale Problem
  219. Reasonably priced amplification for 4 way active crossover system?
  220. Resurrecting a defunct A3000
  221. Need Schematics for repair
  222. Best way to apply UV soldermask paint?
  223. Sony STR-DE415 loud pop noise when cold
  224. Overstock.com kl-2400
  225. "classless" amplifier simulation
  226. Discrete 35W kit vs LM1875
  227. VAS Biasing
  228. relay coil that heats.
  229. Heatsink Colour ?
  230. Thinking Inside the Box
  231. Popping in the Old Harman Kardon 930
  232. Need help fixing Hafler P505
  233. Silence from my amp
  234. Any Ideas on How to find a Radio Shack MPA@250 amp shematic?
  235. NAD PowerDrive ... How does it really work?
  236. Please help me solve my ground loop issues - Pics and layout attached.
  237. Some dumb rookie questions about output power
  238. Audiolab 8000A low volume from cd input than tuner input
  239. Virtual Ground (A Regulated Rail Splitter)
  240. Marantz pm57 distortion
  241. A DIY amp project to match my transformer?
  242. Enlighten me please. which amp?
  243. Super-complementary output stage
  244. the Golden Gain Ratio
  245. Jands series 920 bias setting?
  246. bias spreader bypass cap
  247. question about transistor package types
  248. Onkyo M-504 troubles - need some advice
  249. Bose 4401 pot
  250. FET drivers for BJT outputs?

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