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  1. Wanted Accuphase C-280 & P300x service manuals
  2. how to build a Grounded bridge Amplifier
  3. Luxman RV 371 Speaker Switch
  4. Quad 34 preamp lights problem, In bits now.
  5. Simple Symetry
  6. Parasound HCA 2200ii Inquiries
  7. Should I regulate?
  8. Finishing Amp
  9. Denon PMA-920 recap
  10. SU-Z400 improvements?
  11. Altec Lansing 1269
  12. LJM MX50SE - Possible to bridge / parallel?
  13. Does anyone here recognize this amp schematic
  14. Rotel RB981 makes my speaker pulse when I turn it on.
  15. Advantages or Disadvantages in increasing Vf of Bias Diodes
  16. Could someone please suggest a power buffer mod with 3-5W output?
  17. 555 Timer DC Protect / Turn-On Delay
  18. Mark levinson 334 shematics?
  19. Rotel RA-972 Pops
  20. Receiver outputs big noise with broken relay?
  21. What input stage(s) for a small power amp ?
  22. Single stage class A calculations...
  23. 2sd313 2sb507 alternatives ?
  24. confused on re-cap selections!
  25. yet another amplifier output muting relay idea
  26. DC on outputs of Pioneer Receiver
  27. Cambridge Audio 851A or 851W schematic anyone?
  28. Problem with Luxman LV-113 amplifier.
  29. 70's Pionner RCA plug replacement
  30. studio 350 amplifier
  31. small signal BJT spice models needed
  32. Any Parasound (HCA-1000A) Historians Out There?
  33. Yamaha TA-20 not working
  34. Seeburg TSA3
  35. VC5022 SuperA Bias controll ic problem..
  36. NTE or Ebay? What would you choose?
  37. How to choose emitter resistor of output power stage ?
  38. Query on JFET / BJT cascode circuit
  39. PCB layout and fabrication and Audio devices
  40. Refurbished Cyrus II with 'hum'
  41. Cayin 265 Ai
  42. Musical Fidelity Supercharger
  43. Help with CM labs model?
  44. Qestion about Némésis Amplifier
  45. Dr. Matti Otala, RIP
  46. Akai AA-5000 audio amplier service manual
  47. Ground lift, Short to Chassis, RCA shield, Safe?
  48. Binding Posts Sonance VCA-1
  49. AV receiver dilemma
  50. P and N Mosfets give some output V offset
  51. SAE 2200 Rebuild/Repair...
  52. Yamaha RX-V2400 shuts down after power up
  53. Leak Delta 30 blowing rect. fuse
  54. Ideas about car audio amplifier from scratch
  55. triple bias
  56. Bipolar caps
  57. Urgent - LED bar meter
  58. SABA MI212 problem : transistor heat
  59. Too many amps flip breaker?
  60. need suggestion - emitter resistor value for 5 pairs BJT parallel output
  61. Yamaha RX-V2400 question
  62. Well, this is embarrassing. A/V receiver
  63. Classe DR-25/25 repair
  64. Coil yamaha xp7000
  65. Rotel RA-940BX distorted sound
  66. How to wire a VU meter
  67. Diode reduces THD !
  68. Class A Amp complete kit - recommendations?
  69. Pioneer SX-2300 need schematic of protect circuit
  70. Will a step-up transformer impact sound quality?
  71. Graham Nalty - Virtuous Amplifier
  72. Low cost universal amplifier chassis
  73. Krell KRC-3 to be recapped What brand?
  74. Switch mode power supplies for audio amps
  75. "super complementary" topology
  76. Looking for a high-end DiY headphone SS amp
  77. STK3152 III
  78. AKAI AA 1050 cleaning and restoring
  79. Sansui G-9000
  80. B&K Sonata Pro10MC schematic
  81. Technics SU V85A
  82. Junior Holton need advice
  83. Audio Analogue Enigma service manual
  84. KA-305: No Right Channel and need some help
  85. I sat pondering whether the Chinese can beat Goldmund at its own game
  86. KC-150 w/ DC on Speaker Terminals
  87. The SMPTE intermod distortion challenge
  88. Help with Mosfet Subs....
  89. Sansui TU-X1 Modding
  90. Crackling Sony TA-2000F Pre and TA-3200F Power
  91. Firmware file for CA Azur 640r
  92. DH-100 series 1
  93. Output Resistors in P3A amp
  94. How to replace a Noble Dual Emitter Resistor
  95. interesting method to bias powerstage please read it
  96. Sansui Solid State 300.
  97. Ebay Current Feedback Amp
  98. variac question
  99. Do my Exicon MOSFETs look genuine?
  100. Need advice
  101. Issue with 3EF Diamond
  102. Crown CL 1 input sensitivity
  103. Marantz PM66KI Problem - no 'click' and smoking resistor
  104. Technics su-8044 service manual
  105. Coupling cap advice : Cambridge Audio Azur 540r
  106. Lets help each other against counterfeit
  107. Nak SR4a power supply cap replacement
  108. output devices
  109. MX50 - Input gain
  110. Luxman L550 power transitors-help needed
  111. LESA HF 845 AMPLIFIER
  112. Opamp Class B amplifier output impedance
  113. matching n and p fets capacitances
  114. Sanken STD03 in Europe
  115. loudness button adjustment on the circuit board?
  116. Nad c 355 bee integrated amplifier light?
  117. Question about circuit design
  118. ARCAM Alpha 10 amp
  119. What better sound quality build after LM3875 and Class D 2020?
  120. Voxson HR313 schematic
  121. Wega amp RCA problem
  122. amps, speakers and ohms
  123. Anyone willing to help?
  124. Sony TA-FB940R dc issues?
  125. Burson Soloist Issue and Troubleshooting
  126. Power Supply for MX50 SE Power amplifier
  127. NAD C325BEE - burnt components on AMP-SMD-L BOARD
  128. Output transistor complentary pairs
  129. Paralleling the IRF mosfets
  130. Crest CKi 800v
  131. is this good setup?? :wave2s:
  132. Surround decoder dilemma
  133. GFA-555 Help Please. (pics attached)
  134. lme49830 whats the role of Cb2 here and how much it has to be when biased high
  135. Idling current for Krell KAV 300i
  136. Hum and Buzz Issue
  137. Crown XTI 2000 fries RT6 at turn on
  138. Bulbs replaced With Leds, about resistors?
  139. Help needed with NAD 7600 idle current
  140. BC546 spice model
  141. Scott A 426
  142. Nad 302 volume pot replacement
  143. sansui B77 power amp
  144. Another Son of Ampzilla rebuild.
  145. Best amp with 2sk1058
  146. roender's shunt regulator
  147. How do you match tempco between spreader and power transistor?
  148. Elektor "The Complete Preamplifier" articles.
  149. Speaker selector, OK for amp?
  150. cannot explain the circuit
  151. Very basic clipping indicator
  152. Replacement transistors for HK 6500
  153. What's this diff input topology called?
  154. About power amplifier input? Thanks.
  155. About power, bi-amping?
  156. Global Feedback - A huge benefit for audio
  157. question about mosfet direction
  158. Yamaha RX 495
  159. Veroboard Maplin Amp
  160. Adcom GFA-535 blowing main power fuse
  161. what is the difference between 2SC5200 and 2SC5200N
  162. Please check my heatsink estimate
  163. Multiple Feedback Filter Design doubt
  164. Musical Fidelity a3cr power amp modifications
  165. technics SU-7100 help
  166. Mounting amp upside down
  167. The Brief History of my life with SECA designs
  168. Technics SE-9060 vs multiple compüarison?!
  169. OP amp driving MegaOhm load
  170. grounding issues with integrated amp
  171. AV Processor
  172. Hafler
  173. Yamaha RX-Z9 in protect mode
  174. LME49830 with ALF16N8P x 10 per rail
  175. Class AB Amp Questions.
  176. Anyone tried broskies "super triode" circuit to drive efficient sub?
  177. Arcam Alpha 2 Help/Advice
  178. Solid State Power Amplifier Kits (Modules) - Listening Tests wanted
  179. Surges and spikes
  180. About AV receiver as power amplifier?
  181. Pegeant AV-126-TR Projector
  182. Pcb request
  183. NAD 3020 recap
  184. Need information of preamps.
  185. Cambrige Azur 740A int amp Bias and offset adjustment ?
  186. Adcom ga-5802
  187. Speaker impedance with output transformer
  188. Pro Audio High Fidelity IPS
  189. Hi End 3 Band Tone Control DIY Kit - Bass Mid Treble
  190. Would this be a suitable replacement for 2sd675
  191. NG'ANYA: the art of entertainment
  192. Adcom GFP-555 upgrades from AudioXpress
  193. IRFP240 + IRFP9240 + EBAY...
  194. Pre amp for $1000.00 ???
  195. VA load - simple resistor or bootstrap
  196. EU transformer for an Hafler 9505 Transnova?
  197. Cambridge Audio A300 manual/schematics needed
  198. Double Barrel Leach underway
  199. hd amplifier bias
  200. Credo PMP154 question
  201. Rotel amp no IC version
  202. Balance control-where in the preamp chain should it go?
  203. A JIG for testing amplifier polarity
  204. Question on this schematic
  205. Haffler mosfet stuck on heat sink
  206. Left channel sometimes starts later on Marantz PM-54 II
  207. Technics SE-C01 power amp
  208. Query on BF471 as VAS
  209. Restoring old 2N3055 based amp, need advice
  210. based on Graham Dicker DIGI amp
  211. 4 watt no-gnf hybrid
  212. Is low differential input impedance of opamp not important?
  213. nad amp 701
  214. Little help with this amp please.
  215. Revisiting some "old" ideas from 1970's - IPS, OPS
  216. denon pma 260
  217. from DIY Indonesian Amplifier
  218. Soundstream D200 clone,few hours,nice sound
  219. Lampizator - Fetishizator
  220. Sinclair schematics
  221. nad 701
  222. Onkyo A-9155 - no sound but power
  223. Oliver Offset Optimiser
  224. Is discrete better than chip op amp
  225. Parasound HCA-1000A No Sound
  226. Where to measure the bias on P180?
  227. Popping sound from Left Channel of Marantz PM7002
  228. IC preamp vs discrete preamp - Different?
  229. Crest VS900 burning hot resistor R92
  230. Adcom 5400: using lower capacitance caps
  231. Help please Ne5532a op amp chip
  232. Symasym, opinions please.
  233. sub amp
  234. Low on bass SONY TAF530ES/TAF222ESR
  235. Shreek Protection at turn on
  236. Help w/Yamaha RX-550
  237. Suggestions Fuse Protection?
  238. Need advice on Power supply
  239. please check my work
  240. Nad C270
  241. Cambridge Audio A1mk3SE repair
  242. Picked up a beautiful, almost mint DC 300A. Now what?
  243. Power amplifier with 2n3055/mj2955-schematic
  244. Help with power supply repair
  245. Search Onix A-120 Schématic
  246. Apex BA1200 offset problem.
  247. Film caps are directional as well?!
  248. Sony TA 3120A
  249. Strange Amp Design?
  250. Question regard japanese voltage amp in us

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