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  1. Technics SA-GX303 relay clicking
  2. Just another "recapping headache" thread
  3. Amp blows mains fuses, transformer is fine.
  4. Service Manual For Nakamichi Amplifier 2 (0Q06142A)
  5. Audiolab 8000M gone dead
  6. Galactron Italian Hi End Amplifier circa 1975 Tear-Down
  7. SYMASYM TO3 x 3 Canadian Bacon
  8. Darlington Amp
  9. 6 x 200W amp build thread
  10. Trying to repair a Luxman LV-103u
  11. p channel complimentary to irfp044
  12. Sony amps - "G" version
  13. What does this circuit do?
  14. Adcom GFA5500 idle power consumption
  15. Silencing the noise floor of an older amplifier
  16. Meridian 103 clone
  17. current limiting diodes in old Sony's amps
  18. Rotel -1052
  19. Sony TA-4650 VFET adventures
  20. AKAI AA-920 // Stereo lamp problem
  21. Classe CA-300
  22. Simple class AB quiscent current problem
  23. Extension speaker outputs
  24. Honey Badger bias investigations
  25. Can you identify this part ?
  26. PGA 2311
  27. Rebuilding power amp. Questions about resistor types. Fail safe and others
  28. Just a question about why higher distortion.
  29. MC2100 PAIR - "SLIGHT" hum - Solution?
  30. Adcom GFA 5500 continues to play after powering down
  31. Current vs. Voltage Control
  32. Amp Design consideration for CE mark?
  33. B&K M200 fuse
  34. NAD C370 partial power up
  35. Technics SU-G91 blown resistors
  36. Heatsink as implicit sensor for temperature monitoring
  37. Capacitors for an Old Bryston 3B Amp
  38. Custom case for old HiFi amp
  39. Discrete TAA761A opamp - 2N3055 quasi compl. amplifier - 50W@4R
  40. transistors biasing for YBA intégré Delta DT
  41. arcam avr600 power board
  42. Schematic question
  43. Turntable retrofit
  44. Neve 31102 low output
  45. B & W sound bar blowing external fuse.
  46. dbx mpa-150
  47. old Pioneer will only play music in direct mode
  48. Super Leach amp simulation woes
  49. Need some help :D
  50. Sony TA-AV480 Channel fade fault tracing
  51. Need something to beat LM3875
  52. 200W Class A amp with high efficency
  53. Sony ta-f411r bias current adjustment
  54. Goldmund Wiki and build 2017
  55. No/little rear sound from Sony 5.1 - Help!!
  56. NAD C370 not protection issue
  57. Symasym5 (Transformer specifications)
  58. Bash Amp Bias Adjustment
  59. Another amplifier protection
  60. What is the source of this noise?
  61. Fast, Complementary BJT for low volts, recommendation?
  62. Will this amplifier be able to replace my home audio stereo player?
  63. Replace DC/DC Converter in Car Amp for use in Home
  64. Denon avr-x1200w thermal protection on startup?
  65. Rotel RA930AX
  66. Help required, amplifier background hiss
  67. Amplifier level adjustment
  68. PG xenon left negatives are out
  69. Bose 1800 IV manual
  70. pioneer vsa-eo6 (irf540/ 9540)
  71. Noob Seeking Help on Building Amplifier
  72. Another Op amp based amp
  73. Cree for Motorola MOSFET??
  74. TGM11 - inspired by Steven Dunlap 'KRILL'
  75. Junks or unsung heroes?
  76. Yamaha RX-V563 newbie question
  77. Sony TA-1130 pre-amp noise! Fet related?
  78. Help!
  79. Newb post - NAD 3020 in need of repair
  80. KRELL KSA-50 SPICE Simulation
  81. Electrocompaniet Preampliwire IIA
  82. Which type of capacitor should I use?
  83. Vintage Sony amp acquired and working...what's next?
  84. MF Preamp 8 (A1000) Mosfet Mods?
  85. Computer signal > potentiometer and 2 car amplifiers.
  86. Nakamichi 630 Tone control-HELP
  87. Having a slight issue with my class AB output stage
  88. Crown DC300AII Resurrection
  89. Mcintosh c27 preamp issue
  90. Help crown202 into beyma 12ga50 mono ?
  91. Help needed upgrading op-amps Denon POA-4400
  92. Leach amp - need help finding source of fault
  93. Recapping Dynaco ST400
  94. Best sound 12v Audio ic !?
  95. Adcom GFA-7500 Amp Module Removal
  96. full wave rectifier for jlh?
  97. balance control for class a amp.
  98. Help - Quad 306 Right Channel Low Level Buzz
  99. yamaha amp no powe switching on then off
  100. Will adding HPF at line level help with the clipping or increase it?
  101. Discrete JFET "passive" R2R attenuator
  102. Luxman r115 remote. Transmits signal but receiver does not react
  103. is my amp dead
  104. CAT A-803 getting hot
  105. My amp revisited
  106. Humming sound coming out of home stereo system instead of music what is causing this
  107. Hissing choke, what to do?
  108. Watt ratings on amps. High current vs low current
  109. What or why is the "A/C" connection on this power amp?
  110. sony ta-n9 biasing
  111. Sony str-da2800es repair question
  112. Service Translation
  113. slower than bd139/140
  114. Any chance to damage 4 ohm speakers on 8 ohm amp?
  115. Need help with Adcom GPF-555ii PreAmp
  116. Pioneer amp problem
  117. PA 600W
  118. Help on Rega Elicit MKI
  119. yet another GFA-555 with high voltage output...
  120. Crown DC300a confusion
  121. NAD 216 DC protect
  122. Silicon Chip ULD mk3 amplifier and DAC popping sound on/off input switching
  123. Why Nchanel gate resistor got fire
  124. Output stages and AC wingspread plots
  125. STK442-090 amplifier build
  126. Denon POA-S10
  127. Transistor substitutes for TA-5650? (v-fets excluded)
  128. Sap15 biasing in power amp
  129. help this mikawa amplifier, cheap but weird
  130. Distorted Sound
  131. NAD repair needs help
  132. Making a power amp's PSU a standalone unit?
  133. Dynacord CMS1600 MK3 schematic needed
  134. audiomodule.eu PCBs
  135. ADCOM GFA-585 slight pop at turn on and off
  136. Hafler DH500 low bias, no response from pot
  137. Musical Fidelity A1-x recapped not working
  138. emotiva xpa-2 : loud popping sound and my woofer is dead
  139. Adcom 5500
  140. Nikko NA-850 on the mend
  141. Phono Stage Circuit Diagram
  142. Current Feedback Amplifier Schematic
  143. G&W TW 2006x amp - failing source selector switch
  144. Repair Thule IA150B, no sound except humming
  145. New Adcom 555se input please?
  146. What is the consensus of best amplifier topology TODAY??
  147. 2nd Spring -- another stab at the SE choke-fed Class A Power Amp
  148. Palladium Integrated Amplifier
  149. Help needed to recap my Sony TA707ES...
  150. How to adjust NAD C370 ISC circuit?
  151. Yamaha p2200 questions
  152. Value of transformer in aragon 4004mk11 needed . Need value to
  153. SE class A hybrid amp
  154. Simple amp 100Wrms 8R BJT output.
  155. How do I adjust the gain of my amplifier from the back side?
  156. Circuit Suggestions Wanted for 2SC5200 / 2SA1943
  157. Correct location for VBE bias transistor on CFP output amplifier
  158. 2SA1302 Toshibas. Good for anything?
  159. Luxman clone
  160. Yamaha B-2 troubleshooting
  161. monitor audio powered sub voltage testing
  162. Maxim MAX44248 & MAX44246 in audio community?
  163. Best Class Amp for 4ohm Speakers?
  164. Krell Ksa 150, no audio, not turn of, value of resistor R11-R13 softstart PCB
  165. Question about DC blocking cap. Yamaha P2200
  166. Thermal modeling of transistors
  167. Power Amplifier Output Inductor specification
  168. IGBT classA amp
  169. options for replacing polystyrene caps on phono board
  170. amplifier output vs speaker impedance
  171. Cambridge Audio/AR P35 Refurb
  172. STAX DA-100M class A monoblocks - Worth buying?
  173. What kind of amplifier is this?
  174. P3A Quasi Complementary ?!
  175. New type of Filter ?
  176. Relay not working. Not trans or dc issue
  177. ADCOM 5500 weak bass: possible reasons?
  178. Looking for a kit recommendation
  179. Yet another Adcom GFA-555 question
  180. appending class b amp after class A
  181. Bias adjustment of Symphonic Line RG9 MK4 ?
  182. bandpass for TDA7293 monoblocks
  183. Clipping indicator
  184. QSC CX702 Power Amp
  185. marantz pm6005 schematics
  186. Apex SB 3.1 Preamp
  187. Aragon losing power
  188. Power trafo Denon PRA-1000
  189. Hum problem on new amp only when both phono leads connected
  190. Surround: 5.1 or 7.1 or 9.1 ?
  191. What Do People Mean When They Refer To Signal Path?
  192. Amp(s) for a pair of DIY subwoofers?
  193. Power transformers question
  194. Increasing global feedback of Behringer A500
  195. Quad 303 bias instability
  196. Even order distortion in symmetrical amp
  197. Help identifying problem with power amp- bad caps?
  198. Please suggest an input op amp for my Hafler TA-1600
  199. Luxman 5M21
  200. Requirements for cascode VAS transistors
  201. Recommended amplifier for 4dBu nominal balanced input, +/-24V PSU?
  202. 8-Track PreAmp
  203. Cyrus Two feedback resistor modification
  204. power transistors
  205. HELP: Silicon Chip ULD mk3 amplifier one channel softer
  206. Anyone have any experience servicing a Yamaha rx-a2050?
  207. help me tell me type of this amplifier
  208. Any reason the IEC ground would be disconnected?
  209. Creek evolution 5350 servo question
  210. Bashing a Marantz SR7200
  211. Kypton V2
  212. Replacement feet for NAD 2200
  213. Accidental variable low pass filter
  214. Vintage Sanyo DCX 2700 Quad receiver issues
  215. WANTED: 5,6,7 channel amp recommendations
  216. Re-purposing a dead Hafler XL-600
  217. Crown 3600VZ Impedance Question
  218. Luxman M-02 Build and Duo-beta circuit
  219. ONKYO TX-NR709 no sound, but probably not dts problem
  220. Nyquist and Phase testing
  221. Circuit design: BJT modeling
  222. continunity between T-03 case and ground?
  223. Current driven OPS?
  224. CM Labs CC-50S need info
  225. Adding DC offset pot
  226. how long does it take output capacitors to remember
  227. Class A power amp using switching power supply?
  228. Yamaha HS80M no woofer, only tweeter.
  229. any reason not to re-use mica insulators?
  230. Yamaha Rx A-1030 HTR Receiver
  231. Adcom GFA 545II
  232. Audiolab 8000p and coffee
  233. universal thiele circuit
  234. Opamp orientation?
  235. Crown DC300A - help with repair
  236. SS kit build help
  237. Vu meters regulator
  238. nad 3020b cap replacement problem
  239. Electra SW-900
  240. Speaker cone moving not faulty pot
  241. Musical Fidelity B1 Questions
  242. Aragon 8008ST (Mondial) no output
  243. GainWire harmonizer
  244. Cambridge audio A500 volume problem
  245. WTD: Roksan Caspian 5 channel service manual
  246. Upgrades to Hafler DH-120 PreAmp
  247. TGM10 - based on NAIM by Julian Vereker
  248. Dynaco ST-416 Restoration
  249. Need a source for Klipsch KSW 200 schematics
  250. Improved speaker protection circuit

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