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  1. qinpu a3 doesn't relay click
  2. Assembled mosfet amplifiers from ebay
  3. Nakamichi TA-3A Sound Not Working
  4. Adding a Jfet input stage for the power amplifier improves sound quality?
  5. output voltage at speaker terminals
  6. Looking for schematic for Pioneer SX-40
  7. Sansui AU-4900 problem
  8. Techno SAP130 STD03P STD03N 130 Watt HiFI
  9. Need help setting idling current on old Philips amp
  10. blown amplifier channel (TDA2003)
  11. Single Ended Class A, No global feedback, 8W, MOSFET, low output Z
  12. Upgrades for Rotel RB-991 Power Amp
  13. Doxa 70 Signature Series Mk2 and BD245C/BD246C
  14. Darlington VSSA
  15. AB International 600LX Test Results
  16. Correct Naming for Pioneer/Akai Speaker Terminal used in Solid State Receivers wanted
  17. crest audio 8001 - input board details
  18. Alesis RA-500 troubles
  19. Crest Pro 9200 help
  20. Advent 300 stupid mistake
  21. Help with Kenwood M2A
  22. Emotiva DC-1 grounding mod
  23. Epsilon LT-model
  24. 2n3055 amplifier
  25. Marantz pm57
  26. How to make the PCB layout and routing better
  27. Miraculous Germanium Transistors from China
  28. Bose model 550
  29. Audio Research - A15 , Roterdam
  30. Luxman LV-105U volume pot
  31. Denon PMA-900V lowering gain/opamp swap
  32. problem with a Crest 8001 power amp
  33. LME 49710 opamp; difference in available types?
  34. C Audio TR 850 Schematics?
  35. Pioneer P4600 went dead after setting high volume
  36. Beginner trying to upgrade old speaker set with amp
  37. Parasound Amp - curious current overload
  38. Blown output transistors in Earth Original 2000
  39. Quad 306 -- Trouble shooting
  40. Adding shunt capacitor and resistor in zobel causes instability - Any ideas why?
  41. A power amplifier with 2SC2922SA1216
  42. super simple Jfet crossover
  43. Ampzilla Power Meter Schematic
  44. Pros and cons of using JFET input stage
  45. Negative 5 volt on Adcom 555 MK II
  46. Anyone help me with this amp?
  47. How to improve a Sunfire 300x2 amplifier?
  48. how to measure watt of an amplifier
  49. Unbalanced channels at low volume level.
  50. Diy stereo bluetooth portable speaker help
  51. the IPANEMA AMP
  52. Consonance Calaf, repairs and mods
  53. Strange problem with NAD 1020a pre-amp
  54. 2SJ74 NI Multisim model please
  55. Power Amp Front End with integr. OpAmp and Signal Pad by Power Supply Rail - Naming?
  56. Nakamichi RE-2 Receiver. Possible upgrades ?
  57. Thermal Track transistors bias stability at 25V 1Amp?
  58. Quad 303: setting 33.5V problem
  59. Yamaha RX-V690
  60. Luxman L1 problem
  61. Topaz Line 2 Power Conditioner
  62. question on speaker protection circuit
  63. Replacing low value electrolytics with film caps ?
  64. SCR for my Soundcraftsmen MA-5002
  65. What was this amplifier?
  66. Output impedance of Yamaha CA610ii headphone jack
  67. erno borbely super shunt regulator
  68. NAD 2200 power supply - time to recap?
  69. Parasound HCA-2200 service manual
  70. Yamaha CA-610ii
  71. Help with a dead Pioneer A-447
  72. Pioneer SA-7300 advice needed.
  73. Sanyo System 566 Right Channel Broke HELP!!!!
  74. Ask for help of this mosfet output amp
  75. Aux Audio power supply
  76. Please help me convert this amp
  77. Some questions about this kind of current source
  78. AZUR851A schematic (of amp PCB only) anyone?
  79. Tda1515bq amp portable speaker
  80. The Ultimate Amp??
  81. IC for Subwoofer?
  82. hifonics brutus brx2400.1d
  83. Upgrade Marantz PM-54 II phono stage
  84. Tesla NZC-431 Repair
  85. NJW0281G / NJW0302G instead of 2SC5200/2SA1943
  86. Fixed Bias (no bias control) and Upgrading Output Transistors
  87. How important is the preamp?
  88. Ask for help... buffer add to curcuit with DC servo becomes unstable
  89. Custom Heatsink
  90. Marantz 2230 weirdness.
  91. TO-220 output transistors for power amp
  92. Best laser printer transparency for photo resist transfer?
  93. My own 80W/8R amplifier need help
  94. I need help on an SS design
  95. Sony STR-DE675 problem..
  96. super simple DC detect for balanced amp
  97. How to build a Hackernap ?
  98. Choice of nulling trimmer and slew rate with CA3140T Op-Amp
  99. Magnum IA 170 ....
  100. TL072 Upgrade
  101. Need Parasound DR40 Schematic
  102. Peavey CS800X
  103. Peavey Mark VI bass amplifier 402 module repair
  104. What can I do with 2 AMP (nope not monos) ?
  105. AKG C414 B uls mysterious electrical noise problem
  106. Total no0b question on a Sony N80ES amp
  107. Schematic help! Take a look at this NAD 2600A diagram
  108. Repairing a Luxman l-410...
  109. Yamaha R9
  110. MJL3281 Vbe matching
  111. What is this amp, and what do you think of it?
  112. Amp Output Testing
  113. SIT 2SK82 Circlotron Power Buffer
  114. SECA Kit By Colin Wonfor
  115. Right channel not working properly on Technics amp
  116. Issues with Musical fidelity A1
  117. Yamaha RX-V793
  118. Crown XLS 802
  119. ever heard of Motorola 7151
  120. Powered Mixer on but no sound heat sink not getting hot
  121. Arcam FMJ A22 Flashing Red Power LED
  122. Improve a Rotel amp THD by 20dB!
  123. Onkyo A8700 Blowing fuse
  124. NAD 2600 will not turn on !
  125. Diy class a 5W amplifier
  126. Multi Channel Amplifier Power, Preamp and Digital Grouding
  127. Looking for service manual Para JC1's
  128. What this colors mean ?
  129. EV 2.0kw class H high rail oscillation?
  130. H-K 520 blowing power fuse
  131. Service manual BGW PS 3
  132. How powerful should an amplifier be?
  133. trying to find Crown's service theory pdf(odep)
  134. Potentiometer replacement for Sony TA FA 777 ES
  135. Onkyo TX-NR808 fault
  136. Aiwa amplifier with power supply electronic voltage switch?
  137. Fender M-80 Bass Amp / distorted output
  138. please help!DC voltage in AV400 amp output
  139. Please help Yamaha rx-1030 problem
  140. Help with a factory reset
  141. Crest CA-18; one channel died peacefully
  142. crackling noise Pioneer SA-8500
  143. P3A amp shutdown 'plop'
  144. Chinese made Kit solid state Amplifiers on Ebay
  145. Bass blocking cap at amp input
  146. Does the Crown K2 inject delay? How to test?
  147. Parasound HCA-1000a Refresh
  148. Need some help with an active system
  149. Power at 8ohm, 4 and 2....
  150. Pioneer sc-lx71 blowing fuses
  151. Volume potentiometer replacement,pins.
  152. Interesting bit on capacitors....
  153. Phase Linear 700b refurb and full complementary conversion
  154. Yamaha AX-630
  155. What kind of capacitors inside this ?
  156. Wharfedale SW150 Active Subwoofer help
  157. Single Supply Amp
  158. Dynaco Stereo 400 - suggested TLC?
  159. In your class AB designs generally where is your second pole?
  160. Need spice model for 2SA1163
  161. Amplifier
  162. What is responsible for "control" of loudspeakers?
  163. Harmon Kardon-870 no lights
  164. Dynaco ST-100? I would much appreciate any info on this model.
  165. reparing old amplifier tectronic sa 535
  166. Best PJFET for CCS?
  167. keep smokin transistor!!
  168. Audio Innovations Alto mk 1
  169. Add more inputs to vintage preamp?
  170. turn on pop noisy standby
  171. Mosfet hybrid offset issue
  172. Need help ns450 200 watts amp bias adjust
  173. Schematic for 2SK351 - Quasi?
  174. About op-amps use.
  175. Module amp build help
  176. Op-amp decoupling - best practice?
  177. Rotel RB-980BX schematic
  178. Crown Pro amp ground up refurbish?
  179. Rod Elliot P68 Output DC offset.
  180. Discrete Tandy/Realistic transistor amp: Thermistor?
  181. Miniature bulbs replacement rule?
  182. CRELL and Konzert Schematics
  183. SIT amp simmulation, 2SK79+2SK82 push-pull
  184. Any suggestions on who to upgrade HCA-3500
  185. Technics ampifiers put an end to it's disgusting reviews yes or no for it to be!
  186. jbl vrx 932LAP/918SP schematics needed
  187. Qsc 850 help
  188. TIP3055/TIP2955 ST semi wierd(please help)
  189. Assembling an HDMI to 5.1/7.1 system
  190. Would amp designers (e.g. Pass) replace old caps?
  191. calculating high-pass filter for these components
  192. Uneven slew rates, does it matter?
  193. Luxman L-85V
  194. Troubleshooting stereo amplifier
  195. Akai AA-V1500 Amplifier Repair Help
  196. L20 V9.2
  197. Biasing MJ2955 and 2N3055
  198. Adcom 565 mono block with strange issue
  199. Luxman L-510 capacitors?
  200. Is this another DC offset question?
  201. Amplifier Akai am-u33, powers on, but no sound
  202. transistor heat excess and upgrade components
  203. Building a Quad 306 Clone
  204. Basic Amplier Toubleshooting
  205. Luxman R-113 relay(?) issue
  206. Need spice model for 2SA1618 and 2SC4207
  207. Bogus amplifier
  208. Sugden A21a...hummy
  209. Speaker protection relay issue
  210. Bridging w/ Input Transformers?
  211. Why not use emitter coupled matched pairs instead of emitter resistors?
  212. Technics SU-2400
  213. BGW 750C Recap, help a newbie out?
  214. BPA200 LM4780 Board (Unfinished) Design
  215. Oliver bias set point for class AB power amps
  216. Magnetic field of brushless DC fan
  217. Buy or build?
  218. LeachAmp power up
  219. k10 power amplifier
  220. Protection relays
  221. Any other method of killing bandwidth of an amp besides a large compensation cap?
  222. New to the forums
  223. How close should the +/- rails mirror each other
  224. Uso de diodos MUR3060
  225. Help with my new "old" SS anp.
  226. Sansui G6000 clone BY Dx .... not mine, just something i have prepared to share
  227. CYRUS 6 Amplifier please help
  228. Back to back diodes at inputs of opamps
  229. Amplifier speakers relay: how to pop open the cap on them?
  230. Grounding (Power Vs Signal)
  231. Pioneer A400 Volume Pot Replacement
  232. LME49811 with KSA1381 as headphone amplifier 600ohm imp
  233. Counterpoint SA 20 Amp Blowing Main fuse
  234. Celestion 6000 system...
  235. HK Citation 16 (Not the A model)
  236. Using a line preamp to drive headphone
  237. Nad amplifier c 352 with pop sound from speakers?
  238. Dynaco - ST 400 PC-29 mods/upgrades
  239. Transformer Upgrade
  240. Thermaltrak Amplifier Project (assembling soon!)
  241. Tivoli Model One Problem
  242. AU-999 with new Caps still "pops"
  243. I would like a few ideas..
  244. Does change of high speed power transistor/rectifier increase the dynamic
  245. MX50SE LJM 2015
  246. offset won't zero
  247. Amp working but bulb tester glows
  248. KEC Transistor Data Sheets
  249. Why no fully differential circuits?
  250. Advice for Amplifier Bias

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