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  1. Altec Lansing 1269
  2. LJM MX50SE - Possible to bridge / parallel?
  3. Does anyone here recognize this amp schematic
  4. Rotel RB981 makes my speaker pulse when I turn it on.
  5. Advantages or Disadvantages in increasing Vf of Bias Diodes
  6. Could someone please suggest a power buffer mod with 3-5W output?
  7. 555 Timer DC Protect / Turn-On Delay
  8. Mark levinson 334 shematics?
  9. Rotel RA-972 Pops
  10. Receiver outputs big noise with broken relay?
  11. What input stage(s) for a small power amp ?
  12. Single stage class A calculations...
  13. 2sd313 2sb507 alternatives ?
  14. confused on re-cap selections!
  15. yet another amplifier output muting relay idea
  16. DC on outputs of Pioneer Receiver
  17. Cambridge Audio 851A or 851W schematic anyone?
  18. Problem with Luxman LV-113 amplifier.
  19. 70's Pionner RCA plug replacement
  20. studio 350 amplifier
  21. small signal BJT spice models needed
  22. Any Parasound (HCA-1000A) Historians Out There?
  23. Yamaha TA-20 not working
  24. Seeburg TSA3
  25. VC5022 SuperA Bias controll ic problem..
  26. NTE or Ebay? What would you choose?
  27. How to choose emitter resistor of output power stage ?
  28. Query on JFET / BJT cascode circuit
  29. PCB layout and fabrication and Audio devices
  30. Refurbished Cyrus II with 'hum'
  31. Cayin 265 Ai
  32. Musical Fidelity Supercharger
  33. Help with CM labs model?
  34. Qestion about Némésis Amplifier
  35. Akai AA-5000 audio amplier service manual
  36. Ground lift, Short to Chassis, RCA shield, Safe?
  37. Binding Posts Sonance VCA-1
  38. AV receiver dilemma
  39. P and N Mosfets give some output V offset
  40. SAE 2200 Rebuild/Repair...
  41. Yamaha RX-V2400 shuts down after power up
  42. Leak Delta 30 blowing rect. fuse
  43. Ideas about car audio amplifier from scratch
  44. triple bias
  45. Bipolar caps
  46. Urgent - LED bar meter
  47. SABA MI212 problem : transistor heat
  48. Too many amps flip breaker?
  49. need suggestion - emitter resistor value for 5 pairs BJT parallel output
  50. Yamaha RX-V2400 question
  51. Well, this is embarrassing. A/V receiver
  52. Classe DR-25/25 repair
  53. Coil yamaha xp7000
  54. Rotel RA-940BX distorted sound
  55. How to wire a VU meter
  56. Diode reduces THD !
  57. Class A Amp complete kit - recommendations?
  58. Pioneer SX-2300 need schematic of protect circuit
  59. Will a step-up transformer impact sound quality?
  60. Graham Nalty - Virtuous Amplifier
  61. Low cost universal amplifier chassis
  62. Krell KRC-3 to be recapped What brand?
  63. Switch mode power supplies for audio amps
  64. "super complementary" topology
  65. Looking for a high-end DiY headphone SS amp
  66. STK3152 III
  67. AKAI AA 1050 cleaning and restoring
  68. Sansui G-9000
  69. B&K Sonata Pro10MC schematic
  70. Technics SU V85A
  71. Junior Holton need advice
  72. Audio Analogue Enigma service manual
  73. KA-305: No Right Channel and need some help
  74. I sat pondering whether the Chinese can beat Goldmund at its own game
  75. KC-150 w/ DC on Speaker Terminals
  76. The SMPTE intermod distortion challenge
  77. Help with Mosfet Subs....
  78. Sansui TU-X1 Modding
  79. Crackling Sony TA-2000F Pre and TA-3200F Power
  80. Firmware file for CA Azur 640r
  81. DH-100 series 1
  82. Output Resistors in P3A amp
  83. How to replace a Noble Dual Emitter Resistor
  84. interesting method to bias powerstage please read it
  85. Sansui Solid State 300.
  86. Ebay Current Feedback Amp
  87. variac question
  88. Do my Exicon MOSFETs look genuine?
  89. Need advice
  90. Issue with 3EF Diamond
  91. Crown CL 1 input sensitivity
  92. Marantz PM66KI Problem - no 'click' and smoking resistor
  93. Technics su-8044 service manual
  94. Coupling cap advice : Cambridge Audio Azur 540r
  95. Lets help each other against counterfeit
  96. Nak SR4a power supply cap replacement
  97. output devices
  98. MX50 - Input gain
  99. Luxman L550 power transitors-help needed
  100. LESA HF 845 AMPLIFIER
  101. Opamp Class B amplifier output impedance
  102. matching n and p fets capacitances
  103. Sanken STD03 in Europe
  104. loudness button adjustment on the circuit board?
  105. Nad c 355 bee integrated amplifier light?
  106. Question about circuit design
  107. ARCAM Alpha 10 amp
  108. What better sound quality build after LM3875 and Class D 2020?
  109. Voxson HR313 schematic
  110. Wega amp RCA problem
  111. amps, speakers and ohms
  112. Anyone willing to help?
  113. Sony TA-FB940R dc issues?
  114. Burson Soloist Issue and Troubleshooting
  115. Power Supply for MX50 SE Power amplifier
  116. NAD C325BEE - burnt components on AMP-SMD-L BOARD
  117. Output transistor complentary pairs
  118. Paralleling the IRF mosfets
  119. Crest CKi 800v
  120. is this good setup?? :wave2s:
  121. Surround decoder dilemma
  122. GFA-555 Help Please. (pics attached)
  123. lme49830 whats the role of Cb2 here and how much it has to be when biased high
  124. Idling current for Krell KAV 300i
  125. Hum and Buzz Issue
  126. Crown XTI 2000 fries RT6 at turn on
  127. Bulbs replaced With Leds, about resistors?
  128. Help needed with NAD 7600 idle current
  129. BC546 spice model
  130. Scott A 426
  131. Nad 302 volume pot replacement
  132. sansui B77 power amp
  133. Another Son of Ampzilla rebuild.
  134. Best amp with 2sk1058
  135. roender's shunt regulator
  136. How do you match tempco between spreader and power transistor?
  137. Elektor "The Complete Preamplifier" articles.
  138. Speaker selector, OK for amp?
  139. cannot explain the circuit
  140. Very basic clipping indicator
  141. Replacement transistors for HK 6500
  142. What's this diff input topology called?
  143. About power amplifier input? Thanks.
  144. About power, bi-amping?
  145. Global Feedback - A huge benefit for audio
  146. question about mosfet direction
  147. Yamaha RX 495
  148. Veroboard Maplin Amp
  149. Adcom GFA-535 blowing main power fuse
  150. what is the difference between 2SC5200 and 2SC5200N
  151. Please check my heatsink estimate
  152. Multiple Feedback Filter Design doubt
  153. Musical Fidelity a3cr power amp modifications
  154. technics SU-7100 help
  155. Mounting amp upside down
  156. The Brief History of my life with SECA designs
  157. Technics SE-9060 vs multiple compüarison?!
  158. OP amp driving MegaOhm load
  159. grounding issues with integrated amp
  160. AV Processor
  161. Hafler
  162. Yamaha RX-Z9 in protect mode
  163. LME49830 with ALF16N8P x 10 per rail
  164. Class AB Amp Questions.
  165. Anyone tried broskies "super triode" circuit to drive efficient sub?
  166. Arcam Alpha 2 Help/Advice
  167. Solid State Power Amplifier Kits (Modules) - Listening Tests wanted
  168. Surges and spikes
  169. About AV receiver as power amplifier?
  170. Pegeant AV-126-TR Projector
  171. Pcb request
  172. NAD 3020 recap
  173. Need information of preamps.
  174. Cambrige Azur 740A int amp Bias and offset adjustment ?
  175. Adcom ga-5802
  176. Speaker impedance with output transformer
  177. Pro Audio High Fidelity IPS
  178. Hi End 3 Band Tone Control DIY Kit - Bass Mid Treble
  179. Would this be a suitable replacement for 2sd675
  180. NG'ANYA: the art of entertainment
  181. Adcom GFP-555 upgrades from AudioXpress
  182. IRFP240 + IRFP9240 + EBAY...
  183. Pre amp for $1000.00 ???
  184. VA load - simple resistor or bootstrap
  185. EU transformer for an Hafler 9505 Transnova?
  186. Cambridge Audio A300 manual/schematics needed
  187. Double Barrel Leach underway
  188. hd amplifier bias
  189. Credo PMP154 question
  190. Rotel amp no IC version
  191. Balance control-where in the preamp chain should it go?
  192. A JIG for testing amplifier polarity
  193. Question on this schematic
  194. Haffler mosfet stuck on heat sink
  195. Left channel sometimes starts later on Marantz PM-54 II
  196. Technics SE-C01 power amp
  197. Query on BF471 as VAS
  198. Restoring old 2N3055 based amp, need advice
  199. based on Graham Dicker DIGI amp
  200. 4 watt no-gnf hybrid
  201. Is low differential input impedance of opamp not important?
  202. nad amp 701
  203. Little help with this amp please.
  204. Revisiting some "old" ideas from 1970's - IPS, OPS
  205. denon pma 260
  206. from DIY Indonesian Amplifier
  207. Soundstream D200 clone,few hours,nice sound
  208. Lampizator - Fetishizator
  209. Sinclair schematics
  210. nad 701
  211. Onkyo A-9155 - no sound but power
  212. Oliver Offset Optimiser
  213. Is discrete better than chip op amp
  214. Parasound HCA-1000A No Sound
  215. Where to measure the bias on P180?
  216. Popping sound from Left Channel of Marantz PM7002
  217. IC preamp vs discrete preamp - Different?
  218. Crest VS900 burning hot resistor R92
  219. Adcom 5400: using lower capacitance caps
  220. Help please Ne5532a op amp chip
  221. Symasym, opinions please.
  222. sub amp
  223. Low on bass SONY TAF530ES/TAF222ESR
  224. Shreek Protection at turn on
  225. Help w/Yamaha RX-550
  226. Suggestions Fuse Protection?
  227. Need advice on Power supply
  228. please check my work
  229. Nad C270
  230. Cambridge Audio A1mk3SE repair
  231. Picked up a beautiful, almost mint DC 300A. Now what?
  232. Power amplifier with 2n3055/mj2955-schematic
  233. Help with power supply repair
  234. Search Onix A-120 Schématic
  235. Apex BA1200 offset problem.
  236. Film caps are directional as well?!
  237. Sony TA 3120A
  238. Strange Amp Design?
  239. Question regard japanese voltage amp in us
  240. Large offset and large differential input to input pairs... but amp works..?
  241. amplifier TDA7294 + power supply smps
  242. Required grounding scheme for zero 60/120hz hum.
  243. APEX HB 1200 TEF
  244. My etching tank made out of k'nex..... (serious)
  245. Which Fuses For My Nikko
  246. Audio PCB's with Sprint Layout ?
  247. So... should I build this?
  248. New type of Toshiba 2sc5200/2sa1943 or FAKE?
  249. Technics SU-V3 negative voltage at output!!!
  250. Noise in my stereo tda2003 amp

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