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  1. Query on BF471 as VAS
  2. Restoring old 2N3055 based amp, need advice
  3. based on Graham Dicker DIGI amp
  4. 4 watt no-gnf hybrid
  5. Is low differential input impedance of opamp not important?
  6. nad amp 701
  7. Little help with this amp please.
  8. Revisiting some "old" ideas from 1970's - IPS, OPS
  9. denon pma 260
  10. from DIY Indonesian Amplifier
  11. Soundstream D200 clone,few hours,nice sound
  12. Lampizator - Fetishizator
  13. Sinclair schematics
  14. nad 701
  15. Onkyo A-9155 - no sound but power
  16. Oliver Offset Optimiser
  17. Is discrete better than chip op amp
  18. Parasound HCA-1000A No Sound
  19. Where to measure the bias on P180?
  20. Popping sound from Left Channel of Marantz PM7002
  21. IC preamp vs discrete preamp - Different?
  22. Crest VS900 burning hot resistor R92
  23. Adcom 5400: using lower capacitance caps
  24. Help please Ne5532a op amp chip
  25. Symasym, opinions please.
  26. sub amp
  27. Low on bass SONY TAF530ES/TAF222ESR
  28. Shreek Protection at turn on
  29. Help w/Yamaha RX-550
  30. Suggestions Fuse Protection?
  31. Need advice on Power supply
  32. please check my work
  33. Nad C270
  34. Cambridge Audio A1mk3SE repair
  35. Picked up a beautiful, almost mint DC 300A. Now what?
  36. Power amplifier with 2n3055/mj2955-schematic
  37. Help with power supply repair
  38. Search Onix A-120 Schématic
  39. Apex BA1200 offset problem.
  40. Film caps are directional as well?!
  41. Sony TA 3120A
  42. Strange Amp Design?
  43. Question regard japanese voltage amp in us
  44. Large offset and large differential input to input pairs... but amp works..?
  45. amplifier TDA7294 + power supply smps
  46. Required grounding scheme for zero 60/120hz hum.
  47. APEX HB 1200 TEF
  48. My etching tank made out of k'nex..... (serious)
  49. Which Fuses For My Nikko
  50. Audio PCB's with Sprint Layout ?
  51. So... should I build this?
  52. New type of Toshiba 2sc5200/2sa1943 or FAKE?
  53. Technics SU-V3 negative voltage at output!!!
  54. Noise in my stereo tda2003 amp
  55. Input capacitor question
  56. sansui B77 power amp
  57. Seek advice on simple & very good sounding class A/B output stage.
  58. Jfet complimentary input stage or Jfet LTP?
  59. Chassis Design using Mosfets
  60. Solid State Rail Fuse Replacement
  61. qinpu a3 doesn't relay click
  62. Assembled mosfet amplifiers from ebay
  63. Nakamichi TA-3A Sound Not Working
  64. Adding a Jfet input stage for the power amplifier improves sound quality?
  65. output voltage at speaker terminals
  66. Looking for schematic for Pioneer SX-40
  67. Sansui AU-4900 problem
  68. Techno SAP130 STD03P STD03N 130 Watt HiFI
  69. Need help setting idling current on old Philips amp
  70. blown amplifier channel (TDA2003)
  71. Single Ended Class A, No global feedback, 8W, MOSFET, low output Z
  72. Upgrades for Rotel RB-991 Power Amp
  73. Doxa 70 Signature Series Mk2 and BD245C/BD246C
  74. Darlington VSSA
  75. AB International 600LX Test Results
  76. Correct Naming for Pioneer/Akai Speaker Terminal used in Solid State Receivers wanted
  77. crest audio 8001 - input board details
  78. Alesis RA-500 troubles
  79. Crest Pro 9200 help
  80. Advent 300 stupid mistake
  81. Help with Kenwood M2A
  82. Emotiva DC-1 grounding mod
  83. Epsilon LT-model
  84. 2n3055 amplifier
  85. Marantz pm57
  86. How to make the PCB layout and routing better
  87. Miraculous Germanium Transistors from China
  88. Bose model 550
  89. Audio Research - A15 , Roterdam
  90. Luxman LV-105U volume pot
  91. Denon PMA-900V lowering gain/opamp swap
  92. problem with a Crest 8001 power amp
  93. LME 49710 opamp; difference in available types?
  94. C Audio TR 850 Schematics?
  95. Pioneer P4600 went dead after setting high volume
  96. Beginner trying to upgrade old speaker set with amp
  97. Parasound Amp - curious current overload
  98. Blown output transistors in Earth Original 2000
  99. Quad 306 -- Trouble shooting
  100. Adding shunt capacitor and resistor in zobel causes instability - Any ideas why?
  101. A power amplifier with 2SC2922SA1216
  102. super simple Jfet crossover
  103. Ampzilla Power Meter Schematic
  104. Pros and cons of using JFET input stage
  105. Negative 5 volt on Adcom 555 MK II
  106. Anyone help me with this amp?
  107. How to improve a Sunfire 300x2 amplifier?
  108. how to measure watt of an amplifier
  109. Unbalanced channels at low volume level.
  110. Diy stereo bluetooth portable speaker help
  111. the IPANEMA AMP
  112. Consonance Calaf, repairs and mods
  113. Strange problem with NAD 1020a pre-amp
  114. 2SJ74 NI Multisim model please
  115. Power Amp Front End with integr. OpAmp and Signal Pad by Power Supply Rail - Naming?
  116. Nakamichi RE-2 Receiver. Possible upgrades ?
  117. Thermal Track transistors bias stability at 25V 1Amp?
  118. Quad 303: setting 33.5V problem
  119. Yamaha RX-V690
  120. Luxman L1 problem
  121. Topaz Line 2 Power Conditioner
  122. question on speaker protection circuit
  123. Replacing low value electrolytics with film caps ?
  124. SCR for my Soundcraftsmen MA-5002
  125. What was this amplifier?
  126. Output impedance of Yamaha CA610ii headphone jack
  127. erno borbely super shunt regulator
  128. NAD 2200 power supply - time to recap?
  129. Parasound HCA-2200 service manual
  130. Yamaha CA-610ii
  131. Help with a dead Pioneer A-447
  132. Pioneer SA-7300 advice needed.
  133. Sanyo System 566 Right Channel Broke HELP!!!!
  134. Ask for help of this mosfet output amp
  135. Aux Audio power supply
  136. Please help me convert this amp
  137. Some questions about this kind of current source
  138. AZUR851A schematic (of amp PCB only) anyone?
  139. Tda1515bq amp portable speaker
  140. The Ultimate Amp??
  141. IC for Subwoofer?
  142. hifonics brutus brx2400.1d
  143. Upgrade Marantz PM-54 II phono stage
  144. Tesla NZC-431 Repair
  145. NJW0281G / NJW0302G instead of 2SC5200/2SA1943
  146. Fixed Bias (no bias control) and Upgrading Output Transistors
  147. How important is the preamp?
  148. Ask for help... buffer add to curcuit with DC servo becomes unstable
  149. Custom Heatsink
  150. Marantz 2230 weirdness.
  151. TO-220 output transistors for power amp
  152. My own 80W/8R amplifier need help
  153. I need help on an SS design
  154. Sony STR-DE675 problem..
  155. super simple DC detect for balanced amp
  156. How to build a Hackernap ?
  157. Choice of nulling trimmer and slew rate with CA3140T Op-Amp
  158. Magnum IA 170 ....
  159. TL072 Upgrade
  160. Need Parasound DR40 Schematic
  161. What can I do with 2 AMP (nope not monos) ?
  162. AKG C414 B uls mysterious electrical noise problem
  163. Total no0b question on a Sony N80ES amp
  164. Schematic help! Take a look at this NAD 2600A diagram
  165. Repairing a Luxman l-410...
  166. Yamaha R9
  167. MJL3281 Vbe matching
  168. What is this amp, and what do you think of it?
  169. Amp Output Testing
  170. SIT 2SK82 Circlotron Power Buffer
  171. SECA Kit By Colin Wonfor
  172. Right channel not working properly on Technics amp
  173. Issues with Musical fidelity A1
  174. Yamaha RX-V793
  175. Crown XLS 802
  176. ever heard of Motorola 7151
  177. Powered Mixer on but no sound heat sink not getting hot
  178. Arcam FMJ A22 Flashing Red Power LED
  179. Improve a Rotel amp THD by 20dB!
  180. Onkyo A8700 Blowing fuse
  181. NAD 2600 will not turn on !
  182. Diy class a 5W amplifier
  183. Multi Channel Amplifier Power, Preamp and Digital Grouding
  184. Looking for service manual Para JC1's
  185. What this colors mean ?
  186. EV 2.0kw class H high rail oscillation?
  187. H-K 520 blowing power fuse
  188. Service manual BGW PS 3
  189. How powerful should an amplifier be?
  190. trying to find Crown's service theory pdf(odep)
  191. Potentiometer replacement for Sony TA FA 777 ES
  192. Onkyo TX-NR808 fault
  193. Aiwa amplifier with power supply electronic voltage switch?
  194. please help!DC voltage in AV400 amp output
  195. Please help Yamaha rx-1030 problem
  196. Help with a factory reset
  197. Crest CA-18; one channel died peacefully
  198. crackling noise Pioneer SA-8500
  199. P3A amp shutdown 'plop'
  200. Chinese made Kit solid state Amplifiers on Ebay
  201. Bass blocking cap at amp input
  202. Does the Crown K2 inject delay? How to test?
  203. Parasound HCA-1000a Refresh
  204. Need some help with an active system
  205. Power at 8ohm, 4 and 2....
  206. Pioneer sc-lx71 blowing fuses
  207. Volume potentiometer replacement,pins.
  208. Interesting bit on capacitors....
  209. Phase Linear 700b refurb and full complementary conversion
  210. Yamaha AX-630
  211. What kind of capacitors inside this ?
  212. Wharfedale SW150 Active Subwoofer help
  213. Single Supply Amp
  214. Dynaco Stereo 400 - suggested TLC?
  215. In your class AB designs generally where is your second pole?
  216. Need spice model for 2SA1163
  217. Amplifier
  218. What is responsible for "control" of loudspeakers?
  219. Harmon Kardon-870 no lights
  220. Dynaco ST-100? I would much appreciate any info on this model.
  221. reparing old amplifier tectronic sa 535
  222. Best PJFET for CCS?
  223. keep smokin transistor!!
  224. Audio Innovations Alto mk 1
  225. Add more inputs to vintage preamp?
  226. turn on pop noisy standby
  227. Mosfet hybrid offset issue
  228. Need help ns450 200 watts amp bias adjust
  229. Schematic for 2SK351 - Quasi?
  230. About op-amps use.
  231. Module amp build help
  232. Op-amp decoupling - best practice?
  233. Rotel RB-980BX schematic
  234. Crown Pro amp ground up refurbish?
  235. Rod Elliot P68 Output DC offset.
  236. Discrete Tandy/Realistic transistor amp: Thermistor?
  237. Miniature bulbs replacement rule?
  238. CRELL and Konzert Schematics
  239. SIT amp simmulation, 2SK79+2SK82 push-pull
  240. Any suggestions on who to upgrade HCA-3500
  241. Technics ampifiers put an end to it's disgusting reviews yes or no for it to be!
  242. jbl vrx 932LAP/918SP schematics needed
  243. Qsc 850 help
  244. TIP3055/TIP2955 ST semi wierd(please help)
  245. Assembling an HDMI to 5.1/7.1 system
  246. Would amp designers (e.g. Pass) replace old caps?
  247. calculating high-pass filter for these components
  248. Uneven slew rates, does it matter?
  249. Luxman L-85V
  250. Troubleshooting stereo amplifier

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