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  1. Nad C270
  2. Cambridge Audio A1mk3SE repair
  3. Picked up a beautiful, almost mint DC 300A. Now what?
  4. Power amplifier with 2n3055/mj2955-schematic
  5. Help with power supply repair
  6. Search Onix A-120 Schématic
  7. Apex BA1200 offset problem.
  8. Film caps are directional as well?!
  9. Sony TA 3120A
  10. Strange Amp Design?
  11. Question regard japanese voltage amp in us
  12. Large offset and large differential input to input pairs... but amp works..?
  13. amplifier TDA7294 + power supply smps
  14. Required grounding scheme for zero 60/120hz hum.
  15. APEX HB 1200 TEF
  16. My etching tank made out of k'nex..... (serious)
  17. Which Fuses For My Nikko
  18. Audio PCB's with Sprint Layout ?
  19. So... should I build this?
  20. New type of Toshiba 2sc5200/2sa1943 or FAKE?
  21. Technics SU-V3 negative voltage at output!!!
  22. Noise in my stereo tda2003 amp
  23. Input capacitor question
  24. sansui B77 power amp
  25. Seek advice on simple & very good sounding class A/B output stage.
  26. Jfet complimentary input stage or Jfet LTP?
  27. Chassis Design using Mosfets
  28. Solid State Rail Fuse Replacement
  29. qinpu a3 doesn't relay click
  30. Assembled mosfet amplifiers from ebay
  31. Nakamichi TA-3A Sound Not Working
  32. Adding a Jfet input stage for the power amplifier improves sound quality?
  33. output voltage at speaker terminals
  34. Looking for schematic for Pioneer SX-40
  35. Sansui AU-4900 problem
  36. Techno SAP130 STD03P STD03N 130 Watt HiFI
  37. Need help setting idling current on old Philips amp
  38. blown amplifier channel (TDA2003)
  39. Single Ended Class A, No global feedback, 8W, MOSFET, low output Z
  40. Upgrades for Rotel RB-991 Power Amp
  41. Doxa 70 Signature Series Mk2 and BD245C/BD246C
  42. Darlington VSSA
  43. AB International 600LX Test Results
  44. Correct Naming for Pioneer/Akai Speaker Terminal used in Solid State Receivers wanted
  45. crest audio 8001 - input board details
  46. Alesis RA-500 troubles
  47. Crest Pro 9200 help
  48. Advent 300 stupid mistake
  49. Help with Kenwood M2A
  50. Emotiva DC-1 grounding mod
  51. Epsilon LT-model
  52. 2n3055 amplifier
  53. Marantz pm57
  54. How to make the PCB layout and routing better
  55. Miraculous Germanium Transistors from China
  56. Bose model 550
  57. Audio Research - A15 , Roterdam
  58. Luxman LV-105U volume pot
  59. Denon PMA-900V lowering gain/opamp swap
  60. problem with a Crest 8001 power amp
  61. LME 49710 opamp; difference in available types?
  62. C Audio TR 850 Schematics?
  63. Pioneer P4600 went dead after setting high volume
  64. Beginner trying to upgrade old speaker set with amp
  65. Parasound Amp - curious current overload
  66. Blown output transistors in Earth Original 2000
  67. Quad 306 -- Trouble shooting
  68. Adding shunt capacitor and resistor in zobel causes instability - Any ideas why?
  69. A power amplifier with 2SC2922SA1216
  70. super simple Jfet crossover
  71. Ampzilla Power Meter Schematic
  72. Pros and cons of using JFET input stage
  73. Negative 5 volt on Adcom 555 MK II
  74. Anyone help me with this amp?
  75. How to improve a Sunfire 300x2 amplifier?
  76. how to measure watt of an amplifier
  77. Unbalanced channels at low volume level.
  78. Diy stereo bluetooth portable speaker help
  79. the IPANEMA AMP
  80. Consonance Calaf, repairs and mods
  81. Strange problem with NAD 1020a pre-amp
  82. 2SJ74 NI Multisim model please
  83. Power Amp Front End with integr. OpAmp and Signal Pad by Power Supply Rail - Naming?
  84. Nakamichi RE-2 Receiver. Possible upgrades ?
  85. Thermal Track transistors bias stability at 25V 1Amp?
  86. Quad 303: setting 33.5V problem
  87. Yamaha RX-V690
  88. Luxman L1 problem
  89. Topaz Line 2 Power Conditioner
  90. question on speaker protection circuit
  91. Replacing low value electrolytics with film caps ?
  92. SCR for my Soundcraftsmen MA-5002
  93. What was this amplifier?
  94. Output impedance of Yamaha CA610ii headphone jack
  95. erno borbely super shunt regulator
  96. NAD 2200 power supply - time to recap?
  97. Parasound HCA-2200 service manual
  98. Yamaha CA-610ii
  99. Help with a dead Pioneer A-447
  100. Pioneer SA-7300 advice needed.
  101. Sanyo System 566 Right Channel Broke HELP!!!!
  102. Ask for help of this mosfet output amp
  103. Aux Audio power supply
  104. Please help me convert this amp
  105. Some questions about this kind of current source
  106. AZUR851A schematic (of amp PCB only) anyone?
  107. Tda1515bq amp portable speaker
  108. The Ultimate Amp??
  109. IC for Subwoofer?
  110. hifonics brutus brx2400.1d
  111. Upgrade Marantz PM-54 II phono stage
  112. Tesla NZC-431 Repair
  113. NJW0281G / NJW0302G instead of 2SC5200/2SA1943
  114. Fixed Bias (no bias control) and Upgrading Output Transistors
  115. How important is the preamp?
  116. Ask for help... buffer add to curcuit with DC servo becomes unstable
  117. Custom Heatsink
  118. Marantz 2230 weirdness.
  119. TO-220 output transistors for power amp
  120. My own 80W/8R amplifier need help
  121. I need help on an SS design
  122. Sony STR-DE675 problem..
  123. super simple DC detect for balanced amp
  124. How to build a Hackernap ?
  125. Choice of nulling trimmer and slew rate with CA3140T Op-Amp
  126. Magnum IA 170 ....
  127. TL072 Upgrade
  128. Need Parasound DR40 Schematic
  129. What can I do with 2 AMP (nope not monos) ?
  130. AKG C414 B uls mysterious electrical noise problem
  131. Total no0b question on a Sony N80ES amp
  132. Schematic help! Take a look at this NAD 2600A diagram
  133. Repairing a Luxman l-410...
  134. Yamaha R9
  135. MJL3281 Vbe matching
  136. What is this amp, and what do you think of it?
  137. Amp Output Testing
  138. SIT 2SK82 Circlotron Power Buffer
  139. SECA Kit By Colin Wonfor
  140. Right channel not working properly on Technics amp
  141. Issues with Musical fidelity A1
  142. Yamaha RX-V793
  143. Crown XLS 802
  144. ever heard of Motorola 7151
  145. Powered Mixer on but no sound heat sink not getting hot
  146. Arcam FMJ A22 Flashing Red Power LED
  147. Improve a Rotel amp THD by 20dB!
  148. Onkyo A8700 Blowing fuse
  149. NAD 2600 will not turn on !
  150. Diy class a 5W amplifier
  151. Multi Channel Amplifier Power, Preamp and Digital Grouding
  152. Looking for service manual Para JC1's
  153. What this colors mean ?
  154. EV 2.0kw class H high rail oscillation?
  155. H-K 520 blowing power fuse
  156. Service manual BGW PS 3
  157. How powerful should an amplifier be?
  158. trying to find Crown's service theory pdf(odep)
  159. Potentiometer replacement for Sony TA FA 777 ES
  160. Onkyo TX-NR808 fault
  161. Aiwa amplifier with power supply electronic voltage switch?
  162. please help!DC voltage in AV400 amp output
  163. Please help Yamaha rx-1030 problem
  164. Help with a factory reset
  165. Crest CA-18; one channel died peacefully
  166. crackling noise Pioneer SA-8500
  167. P3A amp shutdown 'plop'
  168. Chinese made Kit solid state Amplifiers on Ebay
  169. Bass blocking cap at amp input
  170. Does the Crown K2 inject delay? How to test?
  171. Parasound HCA-1000a Refresh
  172. Need some help with an active system
  173. Power at 8ohm, 4 and 2....
  174. Pioneer sc-lx71 blowing fuses
  175. Volume potentiometer replacement,pins.
  176. Interesting bit on capacitors....
  177. Phase Linear 700b refurb and full complementary conversion
  178. Yamaha AX-630
  179. What kind of capacitors inside this ?
  180. Wharfedale SW150 Active Subwoofer help
  181. Single Supply Amp
  182. Dynaco Stereo 400 - suggested TLC?
  183. In your class AB designs generally where is your second pole?
  184. Need spice model for 2SA1163
  185. Amplifier
  186. What is responsible for "control" of loudspeakers?
  187. Harmon Kardon-870 no lights
  188. Dynaco ST-100? I would much appreciate any info on this model.
  189. reparing old amplifier tectronic sa 535
  190. Best PJFET for CCS?
  191. keep smokin transistor!!
  192. Audio Innovations Alto mk 1
  193. Add more inputs to vintage preamp?
  194. turn on pop noisy standby
  195. Mosfet hybrid offset issue
  196. Need help ns450 200 watts amp bias adjust
  197. Schematic for 2SK351 - Quasi?
  198. About op-amps use.
  199. Module amp build help
  200. Op-amp decoupling - best practice?
  201. Rotel RB-980BX schematic
  202. Crown Pro amp ground up refurbish?
  203. Rod Elliot P68 Output DC offset.
  204. Discrete Tandy/Realistic transistor amp: Thermistor?
  205. Miniature bulbs replacement rule?
  206. CRELL and Konzert Schematics
  207. SIT amp simmulation, 2SK79+2SK82 push-pull
  208. Any suggestions on who to upgrade HCA-3500
  209. Technics ampifiers put an end to it's disgusting reviews yes or no for it to be!
  210. jbl vrx 932LAP/918SP schematics needed
  211. Qsc 850 help
  212. TIP3055/TIP2955 ST semi wierd(please help)
  213. Assembling an HDMI to 5.1/7.1 system
  214. Would amp designers (e.g. Pass) replace old caps?
  215. calculating high-pass filter for these components
  216. Uneven slew rates, does it matter?
  217. Luxman L-85V
  218. Troubleshooting stereo amplifier
  219. Akai AA-V1500 Amplifier Repair Help
  220. L20 V9.2
  221. Biasing MJ2955 and 2N3055
  222. Adcom 565 mono block with strange issue
  223. Luxman L-510 capacitors?
  224. Is this another DC offset question?
  225. Amplifier Akai am-u33, powers on, but no sound
  226. transistor heat excess and upgrade components
  227. Building a Quad 306 Clone
  228. Basic Amplier Toubleshooting
  229. Luxman R-113 relay(?) issue
  230. Need spice model for 2SA1618 and 2SC4207
  231. Bogus amplifier
  232. Sugden A21a...hummy
  233. Speaker protection relay issue
  234. Bridging w/ Input Transformers?
  235. Why not use emitter coupled matched pairs instead of emitter resistors?
  236. Technics SU-2400
  237. BGW 750C Recap, help a newbie out?
  238. BPA200 LM4780 Board (Unfinished) Design
  239. Oliver bias set point for class AB power amps
  240. Magnetic field of brushless DC fan
  241. Buy or build?
  242. LeachAmp power up
  243. k10 power amplifier
  244. Protection relays
  245. Any other method of killing bandwidth of an amp besides a large compensation cap?
  246. New to the forums
  247. How close should the +/- rails mirror each other
  248. Uso de diodos MUR3060
  249. Help with my new "old" SS anp.
  250. Sansui G6000 clone BY Dx .... not mine, just something i have prepared to share

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