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  1. ADCOM GFA-7500 Amplifier Service Manual
  2. Counterpoint SA-100 rebuild
  3. P3A PCB
  4. Toroidal Transformer Noise
  5. Mark Levinson 431 Voltage conversion to 120V
  6. Dynaco PAT 5 line cord caps/res
  7. Kenwood 9400 bias problem
  8. Trying to fix an old Marantz PM-35MKII
  9. Nad 701
  10. harmon/kardon HK 450 outputs
  11. Help Troubleshooting JLH1996
  12. 45 years old Marantz 7T upgrade, does it really matter?
  13. Gear box disassembly on Nak TA-3a
  14. Pro Amp for home use.
  15. Wanted Accuphase C-280 & P300x service manuals
  16. how to build a Grounded bridge Amplifier
  17. Luxman RV 371 Speaker Switch
  18. Quad 34 preamp lights problem, In bits now.
  19. Simple Symetry
  20. Parasound HCA 2200ii Inquiries
  21. Should I regulate?
  22. Finishing Amp
  23. Denon PMA-920 recap
  24. SU-Z400 improvements?
  25. Altec Lansing 1269
  26. LJM MX50SE - Possible to bridge / parallel?
  27. Does anyone here recognize this amp schematic
  28. Rotel RB981 makes my speaker pulse when I turn it on.
  29. Advantages or Disadvantages in increasing Vf of Bias Diodes
  30. Could someone please suggest a power buffer mod with 3-5W output?
  31. 555 Timer DC Protect / Turn-On Delay
  32. Mark levinson 334 shematics?
  33. Rotel RA-972 Pops
  34. Receiver outputs big noise with broken relay?
  35. What input stage(s) for a small power amp ?
  36. Single stage class A calculations...
  37. 2sd313 2sb507 alternatives ?
  38. confused on re-cap selections!
  39. yet another amplifier output muting relay idea
  40. DC on outputs of Pioneer Receiver
  41. Cambridge Audio 851A or 851W schematic anyone?
  42. Problem with Luxman LV-113 amplifier.
  43. 70's Pionner RCA plug replacement
  44. studio 350 amplifier
  45. small signal BJT spice models needed
  46. Any Parasound (HCA-1000A) Historians Out There?
  47. Yamaha TA-20 not working
  48. Seeburg TSA3
  49. VC5022 SuperA Bias controll ic problem..
  50. NTE or Ebay? What would you choose?
  51. How to choose emitter resistor of output power stage ?
  52. Query on JFET / BJT cascode circuit
  53. PCB layout and fabrication and Audio devices
  54. Refurbished Cyrus II with 'hum'
  55. Cayin 265 Ai
  56. Musical Fidelity Supercharger
  57. Help with CM labs model?
  58. Qestion about Némésis Amplifier
  59. Dr. Matti Otala, RIP
  60. Akai AA-5000 audio amplier service manual
  61. Ground lift, Short to Chassis, RCA shield, Safe?
  62. Binding Posts Sonance VCA-1
  63. AV receiver dilemma
  64. P and N Mosfets give some output V offset
  65. SAE 2200 Rebuild/Repair...
  66. Yamaha RX-V2400 shuts down after power up
  67. Leak Delta 30 blowing rect. fuse
  68. Ideas about car audio amplifier from scratch
  69. triple bias
  70. Bipolar caps
  71. Urgent - LED bar meter
  72. SABA MI212 problem : transistor heat
  73. Too many amps flip breaker?
  74. need suggestion - emitter resistor value for 5 pairs BJT parallel output
  75. Yamaha RX-V2400 question
  76. Well, this is embarrassing. A/V receiver
  77. Classe DR-25/25 repair
  78. Coil yamaha xp7000
  79. Rotel RA-940BX distorted sound
  80. How to wire a VU meter
  81. Diode reduces THD !
  82. Class A Amp complete kit - recommendations?
  83. Pioneer SX-2300 need schematic of protect circuit
  84. Will a step-up transformer impact sound quality?
  85. Graham Nalty - Virtuous Amplifier
  86. Low cost universal amplifier chassis
  87. Krell KRC-3 to be recapped What brand?
  88. Switch mode power supplies for audio amps
  89. "super complementary" topology
  90. Looking for a high-end DiY headphone SS amp
  91. STK3152 III
  92. AKAI AA 1050 cleaning and restoring
  93. Sansui G-9000
  94. B&K Sonata Pro10MC schematic
  95. Technics SU V85A
  96. Junior Holton need advice
  97. Audio Analogue Enigma service manual
  98. KA-305: No Right Channel and need some help
  99. I sat pondering whether the Chinese can beat Goldmund at its own game
  100. KC-150 w/ DC on Speaker Terminals
  101. The SMPTE intermod distortion challenge
  102. Help with Mosfet Subs....
  103. Sansui TU-X1 Modding
  104. Crackling Sony TA-2000F Pre and TA-3200F Power
  105. Firmware file for CA Azur 640r
  106. DH-100 series 1
  107. Output Resistors in P3A amp
  108. How to replace a Noble Dual Emitter Resistor
  109. interesting method to bias powerstage please read it
  110. Sansui Solid State 300.
  111. Ebay Current Feedback Amp
  112. variac question
  113. Do my Exicon MOSFETs look genuine?
  114. Need advice
  115. Issue with 3EF Diamond
  116. Crown CL 1 input sensitivity
  117. Marantz PM66KI Problem - no 'click' and smoking resistor
  118. Technics su-8044 service manual
  119. Coupling cap advice : Cambridge Audio Azur 540r
  120. Lets help each other against counterfeit
  121. Nak SR4a power supply cap replacement
  122. output devices
  123. MX50 - Input gain
  124. Luxman L550 power transitors-help needed
  125. LESA HF 845 AMPLIFIER
  126. Opamp Class B amplifier output impedance
  127. matching n and p fets capacitances
  128. Sanken STD03 in Europe
  129. loudness button adjustment on the circuit board?
  130. Nad c 355 bee integrated amplifier light?
  131. Question about circuit design
  132. ARCAM Alpha 10 amp
  133. What better sound quality build after LM3875 and Class D 2020?
  134. Voxson HR313 schematic
  135. Wega amp RCA problem
  136. amps, speakers and ohms
  137. Anyone willing to help?
  138. Sony TA-FB940R dc issues?
  139. Burson Soloist Issue and Troubleshooting
  140. Power Supply for MX50 SE Power amplifier
  141. NAD C325BEE - burnt components on AMP-SMD-L BOARD
  142. Output transistor complentary pairs
  143. Paralleling the IRF mosfets
  144. Crest CKi 800v
  145. is this good setup?? :wave2s:
  146. Surround decoder dilemma
  147. GFA-555 Help Please. (pics attached)
  148. lme49830 whats the role of Cb2 here and how much it has to be when biased high
  149. Idling current for Krell KAV 300i
  150. Hum and Buzz Issue
  151. Crown XTI 2000 fries RT6 at turn on
  152. Bulbs replaced With Leds, about resistors?
  153. Help needed with NAD 7600 idle current
  154. BC546 spice model
  155. Scott A 426
  156. Nad 302 volume pot replacement
  157. sansui B77 power amp
  158. Another Son of Ampzilla rebuild.
  159. Best amp with 2sk1058
  160. roender's shunt regulator
  161. How do you match tempco between spreader and power transistor?
  162. Elektor "The Complete Preamplifier" articles.
  163. Speaker selector, OK for amp?
  164. cannot explain the circuit
  165. Very basic clipping indicator
  166. Replacement transistors for HK 6500
  167. What's this diff input topology called?
  168. About power amplifier input? Thanks.
  169. About power, bi-amping?
  170. Global Feedback - A huge benefit for audio
  171. question about mosfet direction
  172. Yamaha RX 495
  173. Veroboard Maplin Amp
  174. Adcom GFA-535 blowing main power fuse
  175. what is the difference between 2SC5200 and 2SC5200N
  176. Please check my heatsink estimate
  177. Multiple Feedback Filter Design doubt
  178. Musical Fidelity a3cr power amp modifications
  179. technics SU-7100 help
  180. Mounting amp upside down
  181. The Brief History of my life with SECA designs
  182. Technics SE-9060 vs multiple compüarison?!
  183. OP amp driving MegaOhm load
  184. grounding issues with integrated amp
  185. AV Processor
  186. Hafler
  187. Yamaha RX-Z9 in protect mode
  188. LME49830 with ALF16N8P x 10 per rail
  189. Class AB Amp Questions.
  190. Anyone tried broskies "super triode" circuit to drive efficient sub?
  191. Arcam Alpha 2 Help/Advice
  192. Solid State Power Amplifier Kits (Modules) - Listening Tests wanted
  193. Surges and spikes
  194. About AV receiver as power amplifier?
  195. Pegeant AV-126-TR Projector
  196. Pcb request
  197. NAD 3020 recap
  198. Need information of preamps.
  199. Cambrige Azur 740A int amp Bias and offset adjustment ?
  200. Adcom ga-5802
  201. Speaker impedance with output transformer
  202. Pro Audio High Fidelity IPS
  203. Hi End 3 Band Tone Control DIY Kit - Bass Mid Treble
  204. Would this be a suitable replacement for 2sd675
  205. NG'ANYA: the art of entertainment
  206. Adcom GFP-555 upgrades from AudioXpress
  207. IRFP240 + IRFP9240 + EBAY...
  208. Pre amp for $1000.00 ???
  209. VA load - simple resistor or bootstrap
  210. EU transformer for an Hafler 9505 Transnova?
  211. Cambridge Audio A300 manual/schematics needed
  212. Double Barrel Leach underway
  213. hd amplifier bias
  214. Credo PMP154 question
  215. Rotel amp no IC version
  216. Balance control-where in the preamp chain should it go?
  217. A JIG for testing amplifier polarity
  218. Question on this schematic
  219. Haffler mosfet stuck on heat sink
  220. Left channel sometimes starts later on Marantz PM-54 II
  221. Technics SE-C01 power amp
  222. Query on BF471 as VAS
  223. Restoring old 2N3055 based amp, need advice
  224. based on Graham Dicker DIGI amp
  225. 4 watt no-gnf hybrid
  226. Is low differential input impedance of opamp not important?
  227. nad amp 701
  228. Little help with this amp please.
  229. Revisiting some "old" ideas from 1970's - IPS, OPS
  230. denon pma 260
  231. from DIY Indonesian Amplifier
  232. Soundstream D200 clone,few hours,nice sound
  233. Lampizator - Fetishizator
  234. Sinclair schematics
  235. nad 701
  236. Onkyo A-9155 - no sound but power
  237. Oliver Offset Optimiser
  238. Is discrete better than chip op amp
  239. Parasound HCA-1000A No Sound
  240. Where to measure the bias on P180?
  241. Popping sound from Left Channel of Marantz PM7002
  242. IC preamp vs discrete preamp - Different?
  243. Crest VS900 burning hot resistor R92
  244. Adcom 5400: using lower capacitance caps
  245. Help please Ne5532a op amp chip
  246. Symasym, opinions please.
  247. sub amp
  248. Low on bass SONY TAF530ES/TAF222ESR
  249. Shreek Protection at turn on
  250. Help w/Yamaha RX-550

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