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  1. Techno SAP130 STD03P STD03N 130 Watt HiFI
  2. Need help setting idling current on old Philips amp
  3. blown amplifier channel (TDA2003)
  4. Single Ended Class A, No global feedback, 8W, MOSFET, low output Z
  5. Upgrades for Rotel RB-991 Power Amp
  6. Doxa 70 Signature Series Mk2 and BD245C/BD246C
  7. Darlington VSSA
  8. AB International 600LX Test Results
  9. Correct Naming for Pioneer/Akai Speaker Terminal used in Solid State Receivers wanted
  10. crest audio 8001 - input board details
  11. Alesis RA-500 troubles
  12. Crest Pro 9200 help
  13. Advent 300 stupid mistake
  14. Help with Kenwood M2A
  15. Emotiva DC-1 grounding mod
  16. Epsilon LT-model
  17. 2n3055 amplifier
  18. Marantz pm57
  19. How to make the PCB layout and routing better
  20. Miraculous Germanium Transistors from China
  21. Bose model 550
  22. Audio Research - A15 , Roterdam
  23. Luxman LV-105U volume pot
  24. Denon PMA-900V lowering gain/opamp swap
  25. problem with a Crest 8001 power amp
  26. LME 49710 opamp; difference in available types?
  27. C Audio TR 850 Schematics?
  28. Pioneer P4600 went dead after setting high volume
  29. Beginner trying to upgrade old speaker set with amp
  30. Parasound Amp - curious current overload
  31. Blown output transistors in Earth Original 2000
  32. Quad 306 -- Trouble shooting
  33. Adding shunt capacitor and resistor in zobel causes instability - Any ideas why?
  34. A power amplifier with 2SC2922SA1216
  35. super simple Jfet crossover
  36. Ampzilla Power Meter Schematic
  37. Pros and cons of using JFET input stage
  38. Negative 5 volt on Adcom 555 MK II
  39. Anyone help me with this amp?
  40. How to improve a Sunfire 300x2 amplifier?
  41. how to measure watt of an amplifier
  42. Unbalanced channels at low volume level.
  43. Diy stereo bluetooth portable speaker help
  44. the IPANEMA AMP
  45. Consonance Calaf, repairs and mods
  46. Strange problem with NAD 1020a pre-amp
  47. 2SJ74 NI Multisim model please
  48. Power Amp Front End with integr. OpAmp and Signal Pad by Power Supply Rail - Naming?
  49. Nakamichi RE-2 Receiver. Possible upgrades ?
  50. Thermal Track transistors bias stability at 25V 1Amp?
  51. Quad 303: setting 33.5V problem
  52. Yamaha RX-V690
  53. Luxman L1 problem
  54. Topaz Line 2 Power Conditioner
  55. question on speaker protection circuit
  56. Replacing low value electrolytics with film caps ?
  57. SCR for my Soundcraftsmen MA-5002
  58. What was this amplifier?
  59. Output impedance of Yamaha CA610ii headphone jack
  60. erno borbely super shunt regulator
  61. NAD 2200 power supply - time to recap?
  62. Parasound HCA-2200 service manual
  63. Yamaha CA-610ii
  64. Help with a dead Pioneer A-447
  65. Pioneer SA-7300 advice needed.
  66. Sanyo System 566 Right Channel Broke HELP!!!!
  67. Ask for help of this mosfet output amp
  68. Aux Audio power supply
  69. Please help me convert this amp
  70. Some questions about this kind of current source
  71. AZUR851A schematic (of amp PCB only) anyone?
  72. Tda1515bq amp portable speaker
  73. The Ultimate Amp??
  74. IC for Subwoofer?
  75. hifonics brutus brx2400.1d
  76. Upgrade Marantz PM-54 II phono stage
  77. Tesla NZC-431 Repair
  78. NJW0281G / NJW0302G instead of 2SC5200/2SA1943
  79. Fixed Bias (no bias control) and Upgrading Output Transistors
  80. How important is the preamp?
  81. Ask for help... buffer add to curcuit with DC servo becomes unstable
  82. Custom Heatsink
  83. Marantz 2230 weirdness.
  84. TO-220 output transistors for power amp
  85. My own 80W/8R amplifier need help
  86. I need help on an SS design
  87. Sony STR-DE675 problem..
  88. super simple DC detect for balanced amp
  89. How to build a Hackernap ?
  90. Choice of nulling trimmer and slew rate with CA3140T Op-Amp
  91. Magnum IA 170 ....
  92. TL072 Upgrade
  93. Need Parasound DR40 Schematic
  94. What can I do with 2 AMP (nope not monos) ?
  95. AKG C414 B uls mysterious electrical noise problem
  96. Total no0b question on a Sony N80ES amp
  97. Schematic help! Take a look at this NAD 2600A diagram
  98. Repairing a Luxman l-410...
  99. Yamaha R9
  100. MJL3281 Vbe matching
  101. What is this amp, and what do you think of it?
  102. Amp Output Testing
  103. SIT 2SK82 Circlotron Power Buffer
  104. SECA Kit By Colin Wonfor
  105. Right channel not working properly on Technics amp
  106. Issues with Musical fidelity A1
  107. Yamaha RX-V793
  108. Crown XLS 802
  109. ever heard of Motorola 7151
  110. Powered Mixer on but no sound heat sink not getting hot
  111. Arcam FMJ A22 Flashing Red Power LED
  112. Improve a Rotel amp THD by 20dB!
  113. Onkyo A8700 Blowing fuse
  114. NAD 2600 will not turn on !
  115. Diy class a 5W amplifier
  116. Multi Channel Amplifier Power, Preamp and Digital Grouding
  117. Looking for service manual Para JC1's
  118. What this colors mean ?
  119. EV 2.0kw class H high rail oscillation?
  120. H-K 520 blowing power fuse
  121. Service manual BGW PS 3
  122. How powerful should an amplifier be?
  123. trying to find Crown's service theory pdf(odep)
  124. Potentiometer replacement for Sony TA FA 777 ES
  125. Onkyo TX-NR808 fault
  126. Aiwa amplifier with power supply electronic voltage switch?
  127. please help!DC voltage in AV400 amp output
  128. Please help Yamaha rx-1030 problem
  129. Help with a factory reset
  130. Crest CA-18; one channel died peacefully
  131. crackling noise Pioneer SA-8500
  132. P3A amp shutdown 'plop'
  133. Chinese made Kit solid state Amplifiers on Ebay
  134. Bass blocking cap at amp input
  135. Does the Crown K2 inject delay? How to test?
  136. Parasound HCA-1000a Refresh
  137. Need some help with an active system
  138. Power at 8ohm, 4 and 2....
  139. Pioneer sc-lx71 blowing fuses
  140. Volume potentiometer replacement,pins.
  141. Interesting bit on capacitors....
  142. Phase Linear 700b refurb and full complementary conversion
  143. Yamaha AX-630
  144. What kind of capacitors inside this ?
  145. Wharfedale SW150 Active Subwoofer help
  146. Single Supply Amp
  147. Dynaco Stereo 400 - suggested TLC?
  148. In your class AB designs generally where is your second pole?
  149. Need spice model for 2SA1163
  150. Amplifier
  151. What is responsible for "control" of loudspeakers?
  152. Harmon Kardon-870 no lights
  153. Dynaco ST-100? I would much appreciate any info on this model.
  154. reparing old amplifier tectronic sa 535
  155. Best PJFET for CCS?
  156. keep smokin transistor!!
  157. Audio Innovations Alto mk 1
  158. Add more inputs to vintage preamp?
  159. turn on pop noisy standby
  160. Mosfet hybrid offset issue
  161. Need help ns450 200 watts amp bias adjust
  162. Schematic for 2SK351 - Quasi?
  163. About op-amps use.
  164. Module amp build help
  165. Op-amp decoupling - best practice?
  166. Rotel RB-980BX schematic
  167. Crown Pro amp ground up refurbish?
  168. Rod Elliot P68 Output DC offset.
  169. Discrete Tandy/Realistic transistor amp: Thermistor?
  170. Miniature bulbs replacement rule?
  171. CRELL and Konzert Schematics
  172. SIT amp simmulation, 2SK79+2SK82 push-pull
  173. Any suggestions on who to upgrade HCA-3500
  174. Technics ampifiers put an end to it's disgusting reviews yes or no for it to be!
  175. jbl vrx 932LAP/918SP schematics needed
  176. Qsc 850 help
  177. TIP3055/TIP2955 ST semi wierd(please help)
  178. Assembling an HDMI to 5.1/7.1 system
  179. Would amp designers (e.g. Pass) replace old caps?
  180. calculating high-pass filter for these components
  181. Uneven slew rates, does it matter?
  182. Luxman L-85V
  183. Troubleshooting stereo amplifier
  184. Akai AA-V1500 Amplifier Repair Help
  185. L20 V9.2
  186. Biasing MJ2955 and 2N3055
  187. Adcom 565 mono block with strange issue
  188. Luxman L-510 capacitors?
  189. Is this another DC offset question?
  190. Amplifier Akai am-u33, powers on, but no sound
  191. transistor heat excess and upgrade components
  192. Building a Quad 306 Clone
  193. Basic Amplier Toubleshooting
  194. Luxman R-113 relay(?) issue
  195. Need spice model for 2SA1618 and 2SC4207
  196. Bogus amplifier
  197. Sugden A21a...hummy
  198. Speaker protection relay issue
  199. Bridging w/ Input Transformers?
  200. Why not use emitter coupled matched pairs instead of emitter resistors?
  201. Technics SU-2400
  202. BGW 750C Recap, help a newbie out?
  203. BPA200 LM4780 Board (Unfinished) Design
  204. Oliver bias set point for class AB power amps
  205. Magnetic field of brushless DC fan
  206. Buy or build?
  207. LeachAmp power up
  208. k10 power amplifier
  209. Protection relays
  210. Any other method of killing bandwidth of an amp besides a large compensation cap?
  211. New to the forums
  212. How close should the +/- rails mirror each other
  213. Uso de diodos MUR3060
  214. Help with my new "old" SS anp.
  215. Sansui G6000 clone BY Dx .... not mine, just something i have prepared to share
  216. CYRUS 6 Amplifier please help
  217. Back to back diodes at inputs of opamps
  218. Amplifier speakers relay: how to pop open the cap on them?
  219. Grounding (Power Vs Signal)
  220. Pioneer A400 Volume Pot Replacement
  221. LME49811 with KSA1381 as headphone amplifier 600ohm imp
  222. Counterpoint SA 20 Amp Blowing Main fuse
  223. Celestion 6000 system...
  224. HK Citation 16 (Not the A model)
  225. Using a line preamp to drive headphone
  226. Nad amplifier c 352 with pop sound from speakers?
  227. Dynaco - ST 400 PC-29 mods/upgrades
  228. Transformer Upgrade
  229. Thermaltrak Amplifier Project (assembling soon!)
  230. Tivoli Model One Problem
  231. AU-999 with new Caps still "pops"
  232. I would like a few ideas..
  233. Does change of high speed power transistor/rectifier increase the dynamic
  234. MX50SE LJM 2015
  235. offset won't zero
  236. Amp working but bulb tester glows
  237. KEC Transistor Data Sheets
  238. Why no fully differential circuits?
  239. Advice for Amplifier Bias
  240. Another variation to the MCA amplifier
  241. Need help powering up diy amp for the first time
  242. Replacement for 2SC2362
  243. Data sheet Sanyo STK0231
  244. 2 channel amp recommendations
  245. Just won a AB International 600LX, what to check first?
  246. Crown K2 repair project
  247. Pkn Xd6000 amp for B&C 18SW115 drives
  248. quad 405 amplifier and clone boards from China
  249. Lafayette Radio Int. Amplifier
  250. Interview at Hi-fi Answers

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