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  1. Simple Universal Speaker Delay Using A Triac
  2. yamaha emx640 darlington amp repair
  3. The best Circuit of MJ11032,MJ11033 searching!
  4. Pioneer VSX-D557 Overload problem
  5. Soundstandard ES200 schematics anyone ??
  6. Playmaster Series 200 Circuit
  7. DC offset adj in JE990
  8. Korting Transmare A500 - vintage German amp, with issues!
  9. Tekko draws something from his head
  10. Vintage Toshiba 330 power amp problem, possible repair?
  11. Complementary Power MOSFETs
  12. Old class A design with 2SK146 dual JFET
  13. Balanced NoGNFB With Cross-Linked Input Stage
  14. MC2505 problem
  15. Bridging two 300W in 8 ohm amplifier to drive 1200W in 8 ohm
  16. Can a very simple class A amp produce great sound?
  17. you gotta be kidding !
  18. How to find the transfer function of this volume control?
  19. NAD C370 - red light
  20. Marantz SR1040 no output
  21. Mosfet question ( help needed )
  22. Trouble with Denon PMA-520 bias adjustment
  23. What is the importance of IQ in a common emitter stage?
  24. what is the role of the 68pf and 2200pf cap in Hiraga Super class A 30W
  25. Zero FeedBack Amp
  26. Motorola Solid State
  27. Is it worth modding a Marantz PM66SE
  28. Cyrus 3 2nd stage fault.. HELP!
  29. Carver CM-1090 pre/pro help?
  30. Krell KSA 50 clone power supply.
  31. Pioneer receiver mods
  32. Are ground planes in audio pcbs legit?
  33. Radio
  34. Suggestions for output pairs
  35. First amp I ever built - An excellent simple class A amp for beginners
  36. Does anyone know.......
  37. bow technology is still live?
  38. Esoteric Asr schematic
  39. I need help getting started with an Onkyo M-501
  40. High Power, High Fidelity Lateral MOSFET Power Amplifier
  41. Cheaper way to test power supply stability?
  42. Battery Type for Portable Speakers
  43. high rail voltage chip amps?
  44. class A output stage without feedback for a DAC?
  45. Need help hooking up Ashly P70-400
  46. Surprising polycarbonate caps
  47. Cordell OF THE Amplifier
  48. help changing the crossover setting of my class A/B subwoofer plate amp
  49. catfet amplifier
  50. Did one sell Krell amp after building LM4702?
  51. is current in speaker load to be anyway closer to psu current ratings?
  52. Krell KRC-2 service-manual?
  53. Sound project Module
  54. Rega Brio-R design
  55. Scratchy sound coming from speaker
  56. Dx Zim (Zimmer) SMPS will be developed to release
  57. Grounding scheme and loop breaker, need advice..
  58. Sony TA-FE230 Left Channel Weak
  59. I need pcb for this scheme
  60. How to repair and diagnose amp problem?
  61. WAV File Reproduction Sound Project
  62. the Inverting stage
  63. What about car amps?
  64. Audiolab 8000p stopped working.
  65. Ampeg svt 3 pro Power Amp
  66. McIntosh amp smoking
  67. 2 x 15W rms Audio Amp for small speakers
  68. Mickey Mouse PA Amplifiers and Mixers (two brands MM + PAiCE) - Schematics wanted
  69. channel sound loss scott 350R
  70. Need information for MM AP360 Amplifier
  71. Help me please with NAD S300
  72. Arcam AVR-100
  73. Sansui AU-217 issues
  74. Marantz PM44SE power/relay? issues
  75. Rotel RC-1070 Preamp PSU Repair
  76. home wiring is old knob and tube-no ground plug
  77. Should I let unused amps sit or power them up and use them on occasion.
  78. i need LUXMAN L-570 service manual
  79. Luxman 115 preamped into Concept 16.5?
  80. NAD T752 Repair Advice
  81. Goldmund schematics
  82. The Spanish Trio 5700 story
  83. Newbie trying to learn about my GFA-535 internals
  84. Help: A question regarding PCB to PTP?
  85. Converting single-ended signal to balanced causes background noises
  86. LME49830 question
  87. It helps to select best class power amplifier (AB- 40-50 watts)
  88. Transformer for Nytech CA252 Amplifier
  89. Dynaco st120
  90. How good / bad is this amp made?
  91. Efficient Subwoofer Amplifier
  92. Need Help With BUZ901/906 MOSFET Amplifier
  93. Current conveyor
  94. Question on Transistor amplification
  95. Output subs for 2sa1301 & 2sc3280
  96. Technics SA-R 410
  97. Another "ancient" amp
  98. Burnt out transistors - replace with same or something better? Rotel RB-991
  99. Help with Adcom GFA555-II
  100. Sansui ba-5000 Large Cap Removal Help Needed
  101. help to select and correct 400w TDA2030A OR 200WTDA2030
  102. Cambridge Audio A500 & P500
  103. softstart recommendation for 2kva R-core and 1,00,000uf per rail x 2 caps
  104. Alternative buffer topologies
  105. 400 Watt in 8ohms/ 800 watt in 4 Ohms
  106. Until I can afford a digital unit Old Technics??
  107. Yamaha AX 500u schematic, integrated amp
  108. Power rating for short circuit protection in linear voltage regulator
  109. Leach Amp Tests (weird noise)
  110. Amplifier with a sound. How to build for second harmonic.
  111. TCAAS
  112. Pre amp recommendation
  113. what is cy7c6801a pc 645041 and what does it do?
  114. Raising bias on Marantz SR4200 AV Receiver
  115. Will this schematic work ? (2SK2221/2SJ352 only)
  116. Legacy Whisper vs Klipsh Cornwall loading Mark Levinson ML-2
  117. what happens if transistors are not matched? especially output stage..
  118. SOME CLASS H, AB ,PROTECT POWER AMPS
  119. Please help me understand the voltage regulator with external bypass BJT?
  120. Lead size of TO-3 package and where to get insulated jumper wires?
  121. Cross reference 2SD234
  122. about maintenance of amplifiers
  123. Help with this preamp
  124. Input line 120hz on speaker output in class A?
  125. Need help
  126. How to make LME49810 amp 2 ohm stable?
  127. Make Hifi with 3 Triple Sziklai transistors in Simple Class A
  128. 3000w power amp sadaru
  129. Input capacitor 2.2uf Polystyrene or Mundorf Silver/oil?
  130. Negative side Mosfet heating up with mild hissing
  131. Should a 250VA toriodal be blowing a 1A fuse?
  132. The questions about Hi-fi audio for home use.
  133. Denon Output Transistors.
  134. Sansui 9090 help
  135. Diamonds and Pearls
  136. Seeking DC Enlightenment
  137. FETZILLA - The Builders Place
  138. N-Channel JFET sub
  139. Simple 85W amplifier
  140. NAD T753 receiver: No sound
  141. Power Supply and Other Re-capping
  142. 100watt mono amp find???
  143. help! noob recapping an amp... really stuck.
  144. Powerbass atm-440.2
  145. uPC1237 too slow
  146. What type of capacitors are these?
  147. +/- 36 Volt Voltageamp with TMC error correction
  148. Sound of Op Amps...
  149. THRESHOLD S-300 UPGRADE
  150. Alternative method load for power testing amps?
  151. THRESHOLD S-300 UPGRADE
  152. alternativ symmetric amp
  153. Baking a pcb for removing moisture
  154. Nad 3020e lost some of its volume , distortion
  155. Hafler P3000
  156. Krell KSA-150 Power board Reassamble HELP Please
  157. accurate Output Stage
  158. N-Channel JFET
  159. Musical Fidelity A100 resistors
  160. Help me from JFET
  161. Parts for NAK CA5
  162. Help for Rega biasing value
  163. Replacement transistors, NAIM NAP90
  164. DC Detection Question
  165. Leach driven by DRV134
  166. TO-3 Removal
  167. HOW CAN I CREATE 10% THD ??
  168. Another ESP P3A PCB design thread
  169. joule thief (draw more power from a power supply?)
  170. Found: SAE Series Two Power Switch
  171. Restart search for PS Audio Elite schematic.
  172. NAD 114 switch-on.
  173. Cadsoft eagle package LSK389
  174. New modern amp or classic second hand?
  175. Capicator Whine? PPI PC2350
  176. How much big a heatsink has to be?
  177. NAD C326BEE upgrades
  178. Cyrus 2 - removing cover
  179. Idling setting for Yamaha MX-2000 ?
  180. Philips 391 Intergrated Amplifier guts?
  181. 500w mosfet power amp sadaru
  182. Adjusting DC offset issues
  183. New Lineup IDEA - Power Follower/Output stage
  184. PS Audio 100c thump
  185. Just scored a Sanyo DC-8500K, Can its preamp board drive a Matsushita EPC-451C?
  186. Krell KSA 250 - The Mother Clone !!!
  187. AV400 Bias adjust and Transistor burning accidents
  188. how to match the Transistors like toshiba 5200 1943
  189. Power amp right channel running hot.
  190. Class G plate amp problem
  191. ARCAM D290 DEAD - PLEASE HELP
  192. I am having fun..the one is saying bad things is a friend
  193. Increasing the output power of a car amplifier.
  194. PCB for TDA7295
  195. VSP Labs TransMOS
  196. CS800X output amp cicuitry
  197. Heatsink gradients and Vbe
  198. Are these ok for usage in a vas / current source ?
  199. help with Luxman l-200
  200. why do old amps sound is liked by many serious audiophiles even though...
  201. Best suited power mosfets for amplifiers
  202. why do old amps has sleeve on the resistors pins...
  203. A872e Replacement
  204. See any issues with this class A current clip detect circuit?
  205. Effects of emitter resistors in a hifi amp?
  206. Sansui 9090 bias
  207. Replacement For MPSU10/60
  208. Attempting to restore a Pioneer 202 spring reverb
  209. Quad 405 clone parts
  210. Parts quality does matter, yes, but..
  211. Sources for TO220 heatsinks?
  212. line level stereo volume control using one pot?
  213. REPLACE TIP36 + 2N3055 IN TDA2030A
  214. Amp is making loud "boom pop" noises every second or so..
  215. R24 incomplete
  216. Krell KSA-250 low frequency oscillation
  217. Newly built ESP P03 (not 3A) - rail to rail oscillation - suggestions?
  218. Musical Fidelity 3A-X preamplifier
  219. Denon DR-M07 Cassette Deck
  220. PCB manufacturer EU - thick copper ...
  221. Liquid discharge from capacitors?
  222. Adcom GFA-565 with very high DC offset
  223. Adcom GFA-2535 Bias Adjustment
  224. Balance control for MF pre-amp
  225. DAC what for ?
  226. An active Current Dump amplifier design idea.
  227. Mechanical Transformer Hum
  228. Va rating reloaded
  229. Threshold s/200 question
  230. thanks for help
  231. dmm hfe
  232. Parasound HCA-800 II - How to Bias?
  233. Rega channel selection broken!!
  234. Amp project to use 2 XFOS I have lying around
  235. Any hifi but simple line level stereo to mono converter?
  236. quad 303 burnt component
  237. Any Stockholm Members
  238. TA-N7B new circuit operation brochure
  239. Best location for amplifier's output inductor?
  240. NAD 3120 parts
  241. Maximum output power/current from a transformer?
  242. Sansui 9090 IC equivalent circuit
  243. Samson Servo 260
  244. Conn Organ Amp Question
  245. doubt about amplifiers and active crossover
  246. PV 1.3K won't drive 2 ohms with DDT on
  247. combining amplifiers help!
  248. High Brightness LED Zener Like Curve
  249. brand capacitors need for recap
  250. Dual CV-441 RC darlingtons modifications

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