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  1. Power amplifier input stage psu filtering
  2. Output stage efficiency with varying rails voltage
  3. Capacitors
  4. I just designed my first amplifier!
  5. BGW 750C smoked
  6. Metaxas Ikarus; problem with volume control
  7. Singing amplifier
  8. Modifying Moon 250i Amplifier
  9. Akai AM2250
  10. How to modify this circuit
  11. 2sc5200\2sa1943 Genuine or fake
  12. MOSFET gate resistors.
  13. Testing an amp with dummy load, can hear music coming from inside the amp.
  14. The class i amp...
  15. old Yamaha P4500 secondary voltage ??
  16. Kenwood amp driving 6 speakers: Safe?
  17. Class X: Jikoda circuit.
  18. Do you build your amplifiers to sustain continuous clipping?
  19. Finally I can start the lost dream of my first project.
  20. Gain Equalization System
  21. Amplifier Bridging
  22. Regarding the Velleman K4700U speaker protection kit
  23. Energy through transformer
  24. eti 466 HUM
  25. Byrston 4B repair
  26. Bias adjustment Harman Kardon HK990
  27. Larger Caps mod - worth it? Sane?
  28. 0.0004% THD 1kHz from NGFB amp close from clipping
  29. Pioneer A-109
  30. B&K St-260 power on and power down issues
  31. Cutoff frequency for RF rejection?
  32. Kenwood KA-3020 Volume control
  33. Class A SE J-Fet Stereo buffer
  34. sony ta-f770es amp
  35. BEOCENTER 3500
  36. New to me Mitsubishi Stack
  37. Please help! repair/refurb/recap a NAD 3020A
  38. Help- DC protection and power regulation
  39. Behringer K1800FX
  40. Comparing FFT of Two Amplifiers
  41. Are these 2SC897 devices fake?
  42. Forte Model Six help
  43. Rotel RC03 peramp upgrade !!
  44. Creek 4140 diagram
  45. Ditton DDP-5.1 Digital processor & DCA-5 5 Channel Cinema Amplifer
  46. Another remote control volume thread?
  47. My receiver is humming when DSP is active
  48. JFET SRPP circuit frequency oddity
  49. BJT constant biasing with varying Vcc
  50. Latest project 1600 watt class AB mosfet amplifier.
  51. Sherwood S-7300 Wolverine conversion
  52. BK Electronics modules
  53. remote in/out
  54. Designing with MOSFETs
  55. 100V line transformer as output transformer?
  56. Cant adjust bias on rebuild? Please help?
  57. Amp designed during lunch breaks
  58. My TH-600 300w fully balanced power amp
  59. output input ratio
  60. Dynacord Eminent II T
  61. Capacitor suggestions for a couple refurb projects
  62. I NEED HELP! Easiest amp to make?
  63. KRELL KRS-100 (bias, offset details)
  64. Post pictures of your DIY amplifier chassis
  65. Threshold S300 hum
  66. How important are large filter caps for an amplifier?
  67. Duson B100 schematics(s)
  68. Baxandall 2 Band Active Filter with BJT
  69. Help with PGA2311 preamp transformer
  70. BAT VK-500 Need help!!!
  71. China headphone amp kit?
  72. CCVS (current controlled voltage source) in practice
  73. Death of Zen current adjustment
  74. What should I build?
  75. Yamaha A500 repair
  76. Onkyo A7 question
  77. Lundahl Hybrid Amplifier
  78. Question on self bias of small JFET
  79. Quad 405 II
  80. Nakamichi 620 - how does it work?
  81. Need a working amplifier circuit please help
  82. Need a working amplifier circuit please help
  83. Output stage efficiency
  84. INA217 Mic Preamp and its Capacitors
  85. Adcom GTP-500 Repair
  86. Spartacus S-1000 Build Log
  87. NMOS200 by Quasi
  88. Philips LBB 1240/00
  89. Sansui AU 4900 problem
  90. Help in design: adding a Baxandall diode across emitter in Quasi Complimentary Stage
  91. Alesis RA-100 - Toroidal Transformer
  92. volume control on HK avr10 question
  93. AB international 9620b channel gone
  94. quad 405 clone boards. fried.
  95. Rotel RA-712 recap gone west
  96. Wharfedale Linton amp, shut down problems.
  97. need a little help with sub
  98. Yamaha EMX212S Powered Mixer Repair
  99. Using bracket for heatsink, is it OK ?
  100. SS Power Amp - Low cost and good quality
  101. How much smaller can heatsink be if fan used ?
  102. Bogey SPX6000
  103. Potentiometer substitute question.
  104. Amplifier For Beyma 21Pw1400Fe
  105. The Use of Thermistor NTC
  106. Creek Destiny schematic anyone?
  107. Can any of you amazing folks determine what this used to be?
  108. Any experience with BASH amp (class H) - repair advice
  109. Hafler 9270 - Dead UI Type Transformer
  110. How much THD is too much
  111. Yamaha AX-500 direct CD switch wanted
  112. New Output Stage?
  113. Attaching Aluminum bar to heatsink - thermal paste or pads?
  114. Nakamichi ca-7 hum problem
  115. Behringer NU1000 Pinout..
  116. Is there a reason to use RCA over BNC connectors to transport analog audio?
  117. How does one trace a signal path through an amp schematic??
  118. Pre-outs of receiver to subwoofer?
  119. Altec 1593B bias issue
  120. Denon PMA-655R input selector problem
  121. Why does connection of my can amp cause a sat-on sound in my main system ?
  122. Harmon kardon avr35 repair
  123. DIY power amplifier
  124. Yamaha RX-A2030 Extreme Makeover
  125. Frontman 212r, my bad.
  126. KG Balanced Dynahi DIY - Square wave ripple issue
  127. Teac A-H500 faulty input selector
  128. Diy DI box and inverse, ground lift help
  129. good book?
  130. Problems with Boston gt-24 car amp
  131. SKA GB150D bridge?
  132. Pioneer SA-6300
  133. Vintage Receivers for BiAmping F.A.S.T setup
  134. Rules about running cables?
  135. JLH 10W 1996 Update Questions
  136. Real World Opamp Distortion
  137. Difference between hafler p225 and p230
  138. ? On Denon pma 777 interfaced amp
  139. Circlotron on field-effect transistors with a stabilization system modes.
  140. Old Crown Micro Tech 1200?
  141. Pioneer A-300R service manual
  142. Average vs rms current in EF output stage
  143. Guitar Amplifier
  144. Determining current flow
  145. Most efficient amp
  146. Nakamichi 730 issues-help!?!?!
  147. How to build a 21-st century protection board
  148. Pioneer A400 Phono stage caps?
  149. Considering a NAIM clone off ebay
  150. Help Needed for MASU P-14 China Clone Amp
  151. Hitachi Sr-903 tuning issue
  152. how to increase the amp power (watts) for 4 ohm?
  153. DC speaker protection
  154. Cool simple "clean" CFA
  155. Newby in designing OPS.
  156. Very Simple Hybrid Ampifier
  157. Worth buying a cheap used power amp for new build?
  158. Troubleshooting subwoofer amplifier with no output
  159. Power transistor suggestions
  160. Tivoli radio audio fading
  161. fault finding BJT replacement in Sony STR-DA5300ES power amp
  162. resistor recomd
  163. found this jlh clone kit today
  164. Class A 8W
  165. Voltage amplifier stage burning constantly - 10W class AB
  166. AB Mosfet strange behavior
  167. Bryston 1b fix questions
  168. Ab / A class amplifier board... ebay or whatever?
  169. EFP /CFP war
  170. Aura PA200 hum problem
  171. In-circuit mosfet test?
  172. Onkyo AV Recerver
  173. Messing about with JFET input JLH
  174. Denon AVR-485 Repair
  175. Question in Bob Cordell's Audio Power amp. book.
  176. wierd squeaky problem with crown csl800
  177. Good sources for 75 ohm BNC cables?
  178. DOGC-H by Dr. Jagodic
  179. Arcam alfa 10 Help!
  180. Problem with Luxman R117 source switching
  181. Class B feedback resistors originally missing in a vintage integrated amplifier
  182. Adcom gfa5500
  183. Dynaco sca80-q question.
  184. NAD C372 problem
  185. Fairchild KSC1845 is substitutes for 2SC458 and 2SC945?
  186. Zener diode on Altec 1593B amp
  187. Can someone please explain this circuit?
  188. Cambridge A500 Problems
  189. Normalize all audio to same peak voltage?
  190. Cheap ICOM IC 756 PRO 3 and ELECRAFT K3/P3-KPA500
  191. Germanium power transistor 2n1522
  192. Help
  193. Lever switch
  194. super basic ab amplifier?
  195. RX-707V JVC
  196. Rotel RC 03 technical schematic?
  197. Bose 1800 spares?
  198. CSH4 MkII HEXFET amplifier
  199. Help with Rotel RB-850 amps
  200. Germanium Transistors
  201. Building a Power amp...
  202. Peavey 260C module rare version?
  203. Nikko TRM-750 recapping project
  204. Cleaning a crackling dual concentric volume control?
  205. little help, broke something trying to repair an amp.
  206. 2sa1306a/2sc3298a
  207. rega cursa schematics
  208. Mismatch schematic/PCB LME49830 reference design
  209. TIP31A a good sub for a 2sc931
  210. Upgrading Sony TA-N77ES Power Amp
  211. Power Amp Grounding Scheme
  212. So... What amp should i build?
  213. hifi Power Amplifier
  214. Mosfet in TO-3 package
  215. Please Help me - Receiver Kenwood KR 5150
  216. Cepiar RS-300
  217. Rotel 930AX tweak opinion
  218. Pa Amp repair - any help?
  219. Symasym - 2 output pairs?
  220. Luxmam M-12 bias and dc offset adjustment
  221. Sony TA-AX380 does not power up
  222. Yamaha CX-600 Preamplifier wont turn on
  223. QSC isa300ti schematic needed
  224. Helping a Friend:- Musical Fidelity A3.2 Integrated Dual Mono Schematics and SAP15
  225. HeadPhone Buffer with complementary feedback
  226. Can I improve the sound of my HT receiver with these mods?
  227. I need schematics for a mosfet amplifier
  228. Commercial available discrete OP-AMPs - Overview wanted
  229. behringer gx110
  230. replacing RC4136 opamp w/ 2 OPA2134 on DIP pinout adapter board
  231. help identify capacitor
  232. Is DC power amp danger to speaker?
  233. Sony XM-10020 brunt resistor help
  234. SS project... need help
  235. AKAI AM-U41 Light replacement for Power Indicator
  236. Why a lot of power amps use complementry differential input?
  237. Hafler DH-220 AMP. Is it a kit?
  238. Akai AA-1200 - where to buy parts? Mods?
  239. copyright of Apex board as commercial product?
  240. balanced circuit from Electronic Design
  241. Technics SU-V650 Problem
  242. Any way to improve the sound of my Acurus.
  243. LT1166
  244. diyAB Honey Badger driven by Sonos ZP80?
  245. Nmos 200 Preamp+poweramp
  246. Sounds from an unconnected NAD C 355BEE
  247. Why the 4-ohm 'limitation'
  248. Quad 303 PSU re-build
  249. Need help with Teac AG-H300 hot amp when idle
  250. TIP 31A vs TIP 31c

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