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  1. Yamaha A500 repair
  2. Onkyo A7 question
  3. Lundahl Hybrid Amplifier
  4. Question on self bias of small JFET
  5. Quad 405 II
  6. Nakamichi 620 - how does it work?
  7. Need a working amplifier circuit please help
  8. Need a working amplifier circuit please help
  9. Output stage efficiency
  10. INA217 Mic Preamp and its Capacitors
  11. Adcom GTP-500 Repair
  12. Spartacus S-1000 Build Log
  13. NMOS200 by Quasi
  14. Philips LBB 1240/00
  15. Sansui AU 4900 problem
  16. Help in design: adding a Baxandall diode across emitter in Quasi Complimentary Stage
  17. Alesis RA-100 - Toroidal Transformer
  18. volume control on HK avr10 question
  19. AB international 9620b channel gone
  20. quad 405 clone boards. fried.
  21. Rotel RA-712 recap gone west
  22. Wharfedale Linton amp, shut down problems.
  23. need a little help with sub
  24. Yamaha EMX212S Powered Mixer Repair
  25. Using bracket for heatsink, is it OK ?
  26. SS Power Amp - Low cost and good quality
  27. How much smaller can heatsink be if fan used ?
  28. Bogey SPX6000
  29. Potentiometer substitute question.
  30. Amplifier For Beyma 21Pw1400Fe
  31. The Use of Thermistor NTC
  32. Creek Destiny schematic anyone?
  33. Can any of you amazing folks determine what this used to be?
  34. Any experience with BASH amp (class H) - repair advice
  35. Hafler 9270 - Dead UI Type Transformer
  36. How much THD is too much
  37. Yamaha AX-500 direct CD switch wanted
  38. New Output Stage?
  39. Attaching Aluminum bar to heatsink - thermal paste or pads?
  40. Nakamichi ca-7 hum problem
  41. Is there a reason to use RCA over BNC connectors to transport analog audio?
  42. How does one trace a signal path through an amp schematic??
  43. Pre-outs of receiver to subwoofer?
  44. Altec 1593B bias issue
  45. Denon PMA-655R input selector problem
  46. Why does connection of my can amp cause a sat-on sound in my main system ?
  47. Harmon kardon avr35 repair
  48. DIY power amplifier
  49. Yamaha RX-A2030 Extreme Makeover
  50. Frontman 212r, my bad.
  51. KG Balanced Dynahi DIY - Square wave ripple issue
  52. Teac A-H500 faulty input selector
  53. Diy DI box and inverse, ground lift help
  54. good book?
  55. Problems with Boston gt-24 car amp
  56. SKA GB150D bridge?
  57. Pioneer SA-6300
  58. Vintage Receivers for BiAmping F.A.S.T setup
  59. Rules about running cables?
  60. JLH 10W 1996 Update Questions
  61. Real World Opamp Distortion
  62. Difference between hafler p225 and p230
  63. ? On Denon pma 777 interfaced amp
  64. Circlotron on field-effect transistors with a stabilization system modes.
  65. Old Crown Micro Tech 1200?
  66. Pioneer A-300R service manual
  67. Average vs rms current in EF output stage
  68. Determining current flow
  69. Most efficient amp
  70. Nakamichi 730 issues-help!?!?!
  71. How to build a 21-st century protection board
  72. Pioneer A400 Phono stage caps?
  73. Considering a NAIM clone off ebay
  74. Help Needed for MASU P-14 China Clone Amp
  75. Hitachi Sr-903 tuning issue
  76. how to increase the amp power (watts) for 4 ohm?
  77. DC speaker protection
  78. Cool simple "clean" CFA
  79. Newby in designing OPS.
  80. Very Simple Hybrid Ampifier
  81. Worth buying a cheap used power amp for new build?
  82. Troubleshooting subwoofer amplifier with no output
  83. Power transistor suggestions
  84. Tivoli radio audio fading
  85. fault finding BJT replacement in Sony STR-DA5300ES power amp
  86. resistor recomd
  87. found this jlh clone kit today
  88. Class A 8W
  89. Voltage amplifier stage burning constantly - 10W class AB
  90. AB Mosfet strange behavior
  91. Bryston 1b fix questions
  92. Ab / A class amplifier board... ebay or whatever?
  93. EFP /CFP war
  94. Aura PA200 hum problem
  95. In-circuit mosfet test?
  96. Onkyo AV Recerver
  97. Messing about with JFET input JLH
  98. Denon AVR-485 Repair
  99. Question in Bob Cordell's Audio Power amp. book.
  100. wierd squeaky problem with crown csl800
  101. Good sources for 75 ohm BNC cables?
  102. DOGC-H by Dr. Jagodic
  103. Arcam alfa 10 Help!
  104. Problem with Luxman R117 source switching
  105. Class B feedback resistors originally missing in a vintage integrated amplifier
  106. Adcom gfa5500
  107. Dynaco sca80-q question.
  108. NAD C372 problem
  109. Fairchild KSC1845 is substitutes for 2SC458 and 2SC945?
  110. Zener diode on Altec 1593B amp
  111. Can someone please explain this circuit?
  112. Cambridge A500 Problems
  113. Normalize all audio to same peak voltage?
  114. Cheap ICOM IC 756 PRO 3 and ELECRAFT K3/P3-KPA500
  115. Germanium power transistor 2n1522
  116. Help
  117. Lever switch
  118. super basic ab amplifier?
  119. RX-707V JVC
  120. Rotel RC 03 technical schematic?
  121. Bose 1800 spares?
  122. CSH4 MkII HEXFET amplifier
  123. Help with Rotel RB-850 amps
  124. Germanium Transistors
  125. Building a Power amp...
  126. Nikko TRM-750 recapping project
  127. Cleaning a crackling dual concentric volume control?
  128. little help, broke something trying to repair an amp.
  129. 2sa1306a/2sc3298a
  130. rega cursa schematics
  131. Mismatch schematic/PCB LME49830 reference design
  132. TIP31A a good sub for a 2sc931
  133. Upgrading Sony TA-N77ES Power Amp
  134. Power Amp Grounding Scheme
  135. So... What amp should i build?
  136. hifi Power Amplifier
  137. Mosfet in TO-3 package
  138. Please Help me - Receiver Kenwood KR 5150
  139. Cepiar RS-300
  140. Rotel 930AX tweak opinion
  141. Pa Amp repair - any help?
  142. Symasym - 2 output pairs?
  143. Luxmam M-12 bias and dc offset adjustment
  144. Sony TA-AX380 does not power up
  145. Yamaha CX-600 Preamplifier wont turn on
  146. QSC isa300ti schematic needed
  147. Helping a Friend:- Musical Fidelity A3.2 Integrated Dual Mono Schematics and SAP15
  148. HeadPhone Buffer with complementary feedback
  149. Can I improve the sound of my HT receiver with these mods?
  150. I need schematics for a mosfet amplifier
  151. Commercial available discrete OP-AMPs - Overview wanted
  152. replacing RC4136 opamp w/ 2 OPA2134 on DIP pinout adapter board
  153. help identify capacitor
  154. Is DC power amp danger to speaker?
  155. Sony XM-10020 brunt resistor help
  156. SS project... need help
  157. AKAI AM-U41 Light replacement for Power Indicator
  158. Why a lot of power amps use complementry differential input?
  159. Hafler DH-220 AMP. Is it a kit?
  160. Akai AA-1200 - where to buy parts? Mods?
  161. copyright of Apex board as commercial product?
  162. balanced circuit from Electronic Design
  163. Technics SU-V650 Problem
  164. Any way to improve the sound of my Acurus.
  165. LT1166
  166. diyAB Honey Badger driven by Sonos ZP80?
  167. Nmos 200 Preamp+poweramp
  168. Sounds from an unconnected NAD C 355BEE
  169. Why the 4-ohm 'limitation'
  170. Quad 303 PSU re-build
  171. Need help with Teac AG-H300 hot amp when idle
  172. TIP 31A vs TIP 31c
  173. Denon receiver dead - incorrect antenna may have caused this?
  174. Power12: A compact 6W/channel power amplifier
  175. jlh class a amp
  176. Technics SU-5A Old lady has quiet channel
  177. Power amplifier humming
  178. PSL ve1200 schematic
  179. Distortion vs Global-Feedback (simulated)
  180. The Kinergetics Patent "reducing hysteresis distortion"
  181. cfp - variant --> current coupled
  182. Screened Coax Cable in the Feedback Loop - which Purpose and Benefit is there ??
  183. 2SC5242/2SA1962 fakes...
  184. Capacitors inside feedback loop
  185. Picked up a Pioneer Spec 2
  186. SOS! Crown XLS402. No power
  187. SS diy site
  188. Does anyone know the name of this circuit? (Driver transistor bootstrap)
  189. Extreme prominence of odd harmonics with increasing frequency
  190. Looking for the Über Buffer
  191. Nad C 325 BEE, Output Problems
  192. One driver transistor per output transistor possibilities?
  193. Magnum a 200 power amp
  194. My Modified P3A
  195. JVC A-X9 negative rail at the output - please help
  196. EZ-Dump: dump your current without really trying
  197. best VAS transistors with Higher VCE,Ft,beta low cob
  198. Lite mv 02 remote HELP
  199. An audio amplifier from what I have available
  200. Gain Issue
  201. Meitner MTR-101 repair?
  202. Sony amplifier module
  203. Vandersteen 2W Amplifier
  204. Musical Fidelity power amplifier trim pots
  205. 2sc5171 can drive how many 2sc5949 at 70V without any problem?
  206. Quad 303 hum caused by HDMI connection
  207. The magic amp
  208. NRG Control 400wpc Class A Monoblocks, What to do? Repair or upgrade?
  209. logic amp DBX1004
  210. Floated cascode with jFETs for high voltage?
  211. How much amperage?
  212. HCA-3500 questions
  213. Help fixing NAD C350
  214. Systemdek iix 900
  215. Help me debug a strange interference in my system.
  216. Pot Wiring to Amp
  217. LatFET OPS using HEC!
  218. Electrolytics - Axial vs Radial
  219. Vintage Marantz. Anyone changing their MKT caps?
  220. amplifier has slow speed ticking noise on audio.
  221. Marantz 1120 - Questions re caps and trannies.
  222. Is there a better transistor than a Motorola C4000/C5000
  223. Marantz SR3300
  224. Microphone Noise Cancellation Circuit Design
  225. Salvaging the Power Amp sections of 90s Prologic
  226. Evolution of the VSSA? Esperado's DVSSA...
  227. speaker protection at mains supply - ?
  228. PNP OCL amplifier
  229. ADCOM GFA 555 - Chance bias?
  230. Help with some unknow JFETs for a RIAA project...
  231. Vintage Technics su-v4k integrated amp audio cutting out
  232. How can improve sound quality with TruSound technic
  233. Need help for Luxman C-12 preamplifier
  234. Help with distorted audio from Yamaha cr-400
  235. Massive transistors in Gamut 250i Amps?
  236. Can someone tell me what is this???
  237. Damping factor of 100 at 10KHz?
  238. Help fixing Onkyo TX-SR508
  239. KRELL KSA-50S - Noise distorsion HF
  240. BGW 750C
  241. ESP Project 3A
  242. Can I use a small o/p cap for single ended HF amp
  243. Help me!! nmos 200 problem
  244. Opinions on Quad 303 PC's & components kits?
  245. Burmeister 933 Mk2 Clone
  246. Top Class-A amps Vs Top Class A-B amp for precision and neutrality?
  247. AX6123 sub?
  248. Distortion Hates Symmetry
  249. Loudspeaker protection circuit (form diyaudio) problem
  250. Krell KSA 100 PCB

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