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  1. Telefunken HA900, a Rare amplifier
  2. Beefing up a receiver for a 4ohm load?
  3. power amplifier
  4. Help YAMAHA A1
  5. Analog Devices just introduced the MAT12
  6. Stereo amplifier sqeals at idle, distorts on one channel?
  7. Who wants to make me some PCBs?
  8. Low Wattage Multi Channel Amps?
  9. Radiotehnika U-101 repair, modification?
  10. ESP p3a
  11. DC off-set versus no negative feedback...
  12. sima w3050 need the good fuse
  13. Repairing / Modding PS Audio HCA-2.. what am i looking at here?
  14. Bryston 4B ST problem.....?
  15. NAD USB RIAA Head and Line Buffer Amp PP-3 (PP3)-Schematic here-but several Questions
  16. Cyrus 2 + PSX set-up question
  17. Speaker Attenuator DIY
  18. Its only need +50V for +/-45V outputs.
  19. Need a circuit to noise test BJTs
  20. Transistor power dissipation
  21. Adcom GFA-585LE 47uf 160v or 47uf 100v ?
  22. THD spectrum and negative feedback.
  23. Optimizing KMP PA amplifier for HiFi useage
  24. Pioneer SX-626 troubleshooting
  25. Transformer Out of Spec?
  26. About ExtremA amplifier
  27. Denon Poa 1500 Help.. Advice......
  28. Transistor power dissipation
  29. Mission Cyrus Two as mono block?
  30. need more speaker power: pre amp or secondary amp?
  31. Amplifier power supply voltages
  32. Cascode input question
  33. Bass Reduction in a preamplifier?
  34. Line 6 Spider III HD75 Problem
  35. Mcintosh autoformer taps.....Switchable?
  36. best input transformer for OPA627
  37. Inside Orange CR12L
  38. Need help troubleshooting Ruby amp
  39. HH scott 440a
  40. Class A Listening fatigue
  41. Need scheme for 400w mosfet amplifier
  42. Differential amplifier hum reducer
  43. Dear members please help me find schematics for "Vincent SV-238"
  44. NAD C326BEE
  45. Output buffers
  46. CKKIII Help
  47. Help! Krell KAV-300i voltage conversion, not jumpers version
  48. replacing power supply capacitors
  49. CAN I USE THIS POWER SUPPLY FOR NMOS200 247 WHICH PSU NEED TO USE?
  50. Updating the Dynaco Stereo 120
  51. Purpose of series input resistor in guitar preamp?
  52. How to add line-in to a guitar amp?
  53. Amplifier Questions
  54. The Composite / Hybrid- Linear + Switching Power Amplifier
  55. Need 2sk135 and 2sj50 MOSfets
  56. monarchy audio SM70 pro
  57. Inputs not working on skytec pro 240 amp
  58. what do you use to clean pcb
  59. technics SU-A4 service manual
  60. Real World TMC/ETMC applications
  61. Luxman A-357 schematic
  62. adjusting bryston 7B ST
  63. Yamaha R-50 IC Amplifier
  64. Help with NAD 7250PE
  65. I attached two versions of apex550w pcb layout which is better? see my last post.
  66. which apex 550w pcb layout is better?
  67. Denon PMA-S10 II input selector shifting by it self?
  68. which amp is this?
  69. Yamaha P2200 DC offset
  70. What to do with old Hafler XL280?
  71. 300w power stereo amplifier with pcb layout
  72. Replacing broken volume control with digital volume control
  73. Luxman sq503x constant static
  74. LTspice square wave and audio amp test
  75. 6 Channel Homebuilt amp
  76. Service Manual Classe Audio CP-47.5 e CA-201
  77. Crown MT1200 turn on click on channel 2?
  78. High-Power Audio Amplifier Construction Manual
  79. Technics SU 8055 wierd problem
  80. Cheapest Solid State Amp?
  81. Crest pro 7200
  82. Can you bridge 2 channels by splitting XLR?
  83. 120 VAC indicator lamp??
  84. Hafler DH-220 Troubleshooting Help
  85. Transistor circuit simulation
  86. Single gain stage transistor amplifier.
  87. TC9361 tweaking?
  88. FET Microphone preamplifier
  89. Help On Op Amp Options
  90. non inverting op amp input impedance help
  91. No sense of imitation GOLDMUND
  92. DC output ?
  93. Tekko goes complementary bjt
  94. Graphs of Ic and Vce for OC35, BC115 and BC126
  95. HCA 2003a balanced input mod
  96. Amp failure modes, preventing driver cooking
  97. Repair of Crown Micro-Tech
  98. Sansui 551
  99. Hum in NAD 7020
  100. Anybody ever used the mosfet body diode as a rectifier?
  101. Matching 2SC2922 & 2SA1216 Outputs In 8000P
  102. Wiring in Topaz 96610-11 10kva Isolation transformer UGH!
  103. Converting Pioneer VSX-D512 to greatness
  104. A tribute to the late Prof. Leach (LX amp / voltage stage)
  105. crest cc4000
  106. Is fairchild SS9014 a good LTP choice. ??
  107. High power single supply amplifier?
  108. A different (?) line level circuit
  109. Feedback arrangement in vintage 50W amplifier
  110. Amplifier with 2N3055
  111. Looking for Metal Can Equivalents of MPSA42/92, BC182B, BC546B, BC556B, BC449A
  112. KENWOOD/CAR AMP PS150
  113. NAD 3020A Loud pop on switch off
  114. Classe DR-3B
  115. Where in the UK is a trustworthy place to get 2SC5200 and 2SA1943's?
  116. Krell KRC powersupply
  117. ins and outs .
  118. Phase margin with capacitive load
  119. quad 77 amp dead!? help needed
  120. Help finding lightspeed schematics for 2009 green PCB
  121. Complementary to BC115
  122. 2 Speed Fan Controller
  123. square wave oscilloscope question
  124. Power Cord SOCKET for Power Amp Main Con. REWIREABLE-Ultimate Quality and Standart
  125. Transistor Code Marking/Logo S Over H, What Brand?
  126. Need borbely EB-199/320 schematic
  127. MOOLY, HELP HERE!!!
  128. 2SA1361 Transistors
  129. Good Source For Vishay-Siliconix/Motorola 2N5565, or 2N5564 Dual Jfet?
  130. Nytech CA 202 schematic or Servicemanual?
  131. Mounting heatsinks upwards,, yay or nay?
  132. Gigawork F5
  133. ONKYO AVR401: distorted sound in one channel
  134. Subwoofer Amplifier
  135. Luxman M120 distortion and squeal
  136. Crackly sounding amp in powered sub, any thouhts?
  137. Rig an onkyo to be always on mode
  138. Output Power PP AB Stage - Value of Emitter Resistor for thermal Bias Stability
  139. filter recap issue
  140. Massive amp modification - basic questions - Rotel RB991 donor
  141. Motional/active feedback in the car?
  142. Analysing power requirements (Class-A+C/AB2)
  143. wharfedale amplifier schematics
  144. 1000W amp diagram?
  145. please get amp diagram
  146. Input selector Elektuur EPS 86111-1 & -3
  147. Luxman LV104u
  148. Hill Audio Chameleon 1400S/ Dynaudio A-1
  149. Simple mosfet amplifier
  150. Choosing current for LTP?
  151. Proton AM452
  152. does this mosfet schematic looks promising?
  153. Harmon Kardon Citation TwentyTwo Power Amp
  154. Counterpoint SA-100 Head Scratcher
  155. QED A240 schematics?
  156. Grounded Bridge amp, Eagle 7
  157. Amp Advice
  158. Optonica SA-5207 repair
  159. Speed of BJT's or Fairchild vs. NXP BC550
  160. alternative for STK3102-IV
  161. NAD 1020 preamp mods anyone?
  162. 2-Band Baxandall Tone Control
  163. transistor tone control schematic
  164. Issues with Adcom GFA-545
  165. Alchemist Forseti APD21A Pre Amplifier PSU
  166. Robertson Forty Ten noise problem
  167. Preamplifier Power Supply Problems
  168. Adcom GFA565 Cap question
  169. THD in LTSpice ?
  170. Class A schematic for 53VDC power supply?
  171. PSW-D110 C6 cap
  172. SEPP LITTLE SOLID AMP
  173. Behringer A500 thumping in one channel
  174. GE 41011 transistor
  175. Questions about the 2-pole compensation VAS
  176. RA7502 Input Board Biasing
  177. 120v or 240v For XA160.5?
  178. Threshold stasis sa-3.9e
  179. TO3 final P3A
  180. LOOKING FOR YAMAHA A450 SCHEMATIC
  181. Question about wattage of resistance in parallel
  182. implement CCS on a BJT darlington buffer
  183. MPA 3250 Amp
  184. Pioneer SX-1280
  185. Japanese to English translation
  186. Genuine Sanken 2SA1216 Supplier
  187. IRFPS37N50A or IRFBA22N50A as o/p devices
  188. Goldmund Mimesis 3 Clone, World's Best Amplifier!!!!
  189. how to distinguish phenolic pcb from the appearance alone?
  190. Needed: single transistor audio amplifier with positive feedback
  191. Leach amp - need suggestions for output relays
  192. My First Amp
  193. Musical Fidelity A-1 in A/B class?
  194. Sansui Au-505 Schematic Needed
  195. Main On/Off Power Switch for various NAD Amp Models
  196. Question regarding differential amplifiers
  197. Help needed for guitar preamp/power amp schematic.
  198. Opamp/transformer headphone amp
  199. Geddes' amp on this load?
  200. Buzzer circuit?
  201. :'( please help
  202. Crown D-75 Amp
  203. Luxman L-116a Caps
  204. Cheap and Easy Soft Start?
  205. REVOX B750 INTEGRATED AMPLIFIER SCHEMATICS
  206. opinions
  207. Schematics/service manuals for Technics SU-G91?
  208. Pioneer VSX-9500S A/V Receiver under maintenance, need support...
  209. Well Behaved Amps
  210. Arcam Alpha 10 with DAVE, Help wanted!!
  211. Transistors for Sansui AU 717 power supply
  212. MooseFET Preamp Problems
  213. Rail Voltage chart for Amps
  214. Aloia Preamp Repair?
  215. C-Audio RA3001 Diagram?
  216. Inductor wrapped around resistor - what for?
  217. TNT Preamble Modification
  218. AV Receiver turns on for a second, then turns off
  219. Questions about CSA/UL certification of a commercial fully built amp.
  220. Potentiometers
  221. ARTA Settings - Please Help
  222. Phase issue ... advice please
  223. CA 640A + miniDSP Tape in question?
  224. Wharfedale 2050A Integrated Amplifier
  225. Help choosing the right amp?!
  226. Resistors, metal film or metal oxide?
  227. Why are Power Transistors so slow?
  228. which is better for volume control
  229. 60vdc max
  230. Forte Model 44
  231. High-Power Electrocompaniet clone
  232. Removing tone control circuit from Hafler DH-101
  233. Sony STR-DE915 schematic?
  234. EP2500 overheats immediately - bias adjustment?
  235. How to combine the left and right channels with out making everything mono?
  236. HELP! Struggling to find the right amp!
  237. p3a amplifier debugging
  238. Using 6ohm speakers with Audiolab 8000a MK1
  239. AudioSource Amp Two
  240. 2SC3854 in JLH 1969 Class A?
  241. Bipolar capacitors...replacing BG NX
  242. will pay for Belles 1 Series amp info & Schematic
  243. Simples for you experts (fan)
  244. Grundig SV 80M
  245. How much VAS current to drive a pair of lateral FETs?
  246. Fairchild FJA4310
  247. preamp opamps
  248. AVM Evolution M4 or M5 ?
  249. Upgrading a 1994 amplifier
  250. DGE transistors, 2SB737?

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