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  1. jFET amp with current NFB
  2. Dual-jFET 2SK146 and two single jFETs 2SK147 in parallel Operation in Luxman's L550
  3. pre/amp . compat or not
  4. Need A5 Schematic
  5. diy short circuit protection
  6. Repairing a Rega Elex Integrated Amplifier
  7. Seeking NOS 2SK162
  8. Class A Kits
  9. LM317 for output stage
  10. A simple quasi-complementary 50 watts amp
  11. Leach Capacitor Upgrade
  12. Bored....what to do with all these old parts in the junk box?!
  13. Amp to power 1x15", 4x5" & 2xTweeter
  14. Quad 405 cheap kits on ebay
  15. Best source or replacement for KTA1700/KTC2800 transistors?
  16. tranformer noise
  17. Can anyone ID this rather unhealthy noise coming from my amp?
  18. JBL 6290 amplifier mods on Pcb
  19. Learning Repair Need Help With Sub Amp
  20. Cause of dc thump at turn on
  21. NAD 3020A transistors heating up.
  22. 2SA1024/2SC3206 substitution sugestion
  23. No - feedback amplifier
  24. Technics SU-V7
  25. Denon PMA-860 schematic/service manual
  26. ultra low noise low distortion preamplifier needed
  27. Easiest/Economical way to build multichannel Class A/B amp? Suggestions Welcome
  28. build a simple yet effective volume control (attenuation) of analog ?
  29. Krill output stage + tube preamp
  30. Elkatone Amp with problems
  31. No Power on High Side Bias Com-Tech 400
  32. Old amp, power out and fault?
  33. NAD 3020A Muting circuit??
  34. Circuit or project for an active filter for subwoofer
  35. why isnt my amp doing what its supposed to.
  36. Yamaha PD2500
  37. audiolab 8000
  38. Improved 2W current sources (II)
  39. Bridge amp with LM833 and BD139/BD140 problems - please help.
  40. Linn LK85 (LK-85) and LK140 (LK-140) schematic needed
  41. Microphone wiretapping, for further distance
  42. Where do I plug this into!? Help! ?Heat Sink?
  43. LME 49810 with NMOS output stage 1000W @ 4 OHM
  44. Solid state tutorial
  45. Amplifier burning resistor.
  46. Pioneer SA7300 amp
  47. Massive High Power Solid State Integrated Amplifiers - Overview wanted
  48. Replace a '80 Class A stereo with a Class T/D
  49. PS Audio Delta 100
  50. Output transistor suggestions for McIntosh MC2105
  51. Easy to do audio Hi Fi amplifier P16W2R
  52. NORTON KP600
  53. How to reduce the gain of the symasym 5_3?
  54. TGM5 - all-BJT Simple Symmetric Amplifier
  55. Why 3 dB?
  56. Dirty connections in Technics su-v7
  57. Super clean audio amplifier P8W4R
  58. "The Wire AMP" Class A/AB Power Amplifier based on the LME49830 with Lateral Mosfets
  59. Improving clipping
  60. Parallel Lateral FETs
  61. Need chassis case for new amp!!!
  62. Hartke Series 2000 Bass amplifier. Schematic request
  63. Alluminium chassis where I can buy it
  64. Self load invariant supply voltage
  65. JVC A-K300B stereo receiver
  66. P.L. Taylor "Audio power amplifier" 1973 anyone have article?
  67. Lateral FET current limiting
  68. Nishiki Amplifier with 2SC5200
  69. SIMPLE BUT EFICIENT AUDIO AMPLIFIER !
  70. Oh Shoot! Did I Kill a Channel?
  71. Marantz SR8200
  72. Feedback Wanted - Hantek USB Oscilloscopes
  73. Diamond Buffer /w "bootstrapped power supply"
  74. hard to find!!!
  75. transistor mounting technique ? Heatsink
  76. Comment on the schematic
  77. V-out DAC directly into power output stage (like an F4)?
  78. 100 Watt Class A Power Amp
  79. Metal Film or Carbon Film Resistors in Marcof PPA-1h ??
  80. PL 700 Series II went psycho!
  81. SEC DIY 2011 Speaker Show!
  82. 500W 2sk135, 2sj50 amplifier
  83. Grounding on single rail ? (building aspect)
  84. Audio Inovative Ideas and More ...
  85. Identifying the stages of an amplifier (understanding)
  86. Post mortem of an ESI nEar 05 studio monitor with pictures
  87. What is this?
  88. Event TR6 Power Output Issues
  89. Pioneer sa-610
  90. Crate TX50 schematic
  91. parasound hca 800ii
  92. Draw schematics using your browser and share them
  93. The high slew rate design that time forgot?
  94. Problem with 80W mosfet amplifier - help me please
  95. elctrocompaniet ec 4.7 mkI
  96. Feedback Takeoff Point ?
  97. Adcom GFA-555 + Onkyo TX-NR709 Mute Thump?
  98. Question about Rotel RB-880 amplifier
  99. New amplifier problems
  100. 100W Hi-Fi audio amplifier!
  101. Technics SU-X920D
  102. CROWN POWERTECH 1
  103. 2SK135 - 2SJ50 -12W
  104. What value bypass caps for 1uf, 2.2uf and 3.3uf?
  105. Building A (Poorly Desinged) Symmetrical Emitter Feedback Amplifier
  106. This old amp is good?
  107. Electrolytic Cap can I replace with film
  108. Sub a silicon trans for a germanium
  109. Anybody have a formal loudness circuit?
  110. any question...some questions?
  111. output inductor//resistor placement
  112. some cuestions help!!!
  113. Help! What would be the input inpedance of this input stage?
  114. Parts placement in enclosure tips
  115. Krell FPB200 schematic or service manual anybody please?
  116. LatFET OPS.
  117. Pioneer SX1010 issue
  118. high impedance load
  119. Sony STR-VX750 no audio & no volume control
  120. LM741 :-)
  121. LME49811TB 500W amp module
  122. Son of Ampzilla VI limiters
  123. PCB Layout Process and Guidelines?
  124. QQQ (Quick Quad Question...)
  125. TRACE ELLIOT ...
  126. Phils Amp - Progress?
  127. Mains Hum - Are cheap caps worth it?
  128. standard AB bias heatsinking versus enriched class A
  129. Make your own custom ICs for very cheap !
  130. class A to class AB switch
  131. Quad 405 clone
  132. FIND: ORIGINAL OBSOLETE TRANSISTORS
  133. Help! I let some magic smoke out :(
  134. L-speed current sea-saw circuit, simpler the better
  135. Thorens Restek.. Vector Pre Amp
  136. connecting two 110v amplifiers in series on 220v mains
  137. Postive output voltage only
  138. emotiva upa2
  139. Super distorted old amplifier problem
  140. Recommend amplifier to build
  141. Transistor case coupling??
  142. Faulty amp?
  143. Nikoo A-300D, recapping dilemma...
  144. L12-2 CFP Output amp 120W*2 8R
  145. SoundTech PowerSource1300 NOISE
  146. Anyone tried the Renardson Output Stage ?
  147. Simple Killer amplifier
  148. Rotel 820AX problem - any known issues?
  149. Cause of extreme voltage swing at turn on
  150. Amplifier testing on PC with DAAS
  151. Wharfedale EVP-15P amplifier fault
  152. Preamp to match Meridian 206 DS cd player
  153. Crown Com-Tech 400 Dead Channel?
  154. CLASS A POWER AMP
  155. Ultimatest Passive Tone Control Network based on James-Baxandall's topology wanted
  156. Adcom GFA-535 Transistor sub
  157. Pioneer A400 transformer
  158. Amplifier volume knob noise
  159. 100W Hi-Fi amplifier-Help!?
  160. Did someone had tested this current feedback power amp ?
  161. Technics SU-V40
  162. opa827 bypassing,pioneer A-8 tone controls
  163. What Degrades Channel Separation in a Stereo Power Amp?
  164. Recommendation for audio amplifier!?
  165. NAD C320 Can the protection be adjusted
  166. transistor help please
  167. NAIM Nait5i V2 transformer voltage
  168. help fixing a tone control circuit
  169. Jeff Rowland Model 7 mk2 bias adjustement
  170. transistor source
  171. Need help repairing Denon AVR 5803
  172. My first designed amp
  173. Hall-effect current sensor for output stage over-current protection
  174. floating supply amp with single supply
  175. WHICH IS BETTER TRANSISTOR MJE340/350 OR BD139/BD140
  176. Circuit Translation Services
  177. Cairn 4807 Integrated Amplifier Schematic/Service Manual wanted
  178. Aragon 4004 slow relay problem
  179. Sansui AU-6900 Questions and problems
  180. Oscillation only at raising slope
  181. Pure Reference Class A Monoblock
  182. Determining current limit
  183. digital amp modelling
  184. Help in improving a Cambridge P500 (more caps)
  185. MC250 Input Section Voltage Question
  186. Need help with Nad 3020A
  187. Jitter or phase noise in LTSPice
  188. The Sisian Amp
  189. Darlington or Sziklai (compound) pair output stages?
  190. Amplifier repair, some pointers please?
  191. Powering A Tough Speaker (Split from Simple Symmetrical Amplifier)
  192. how can the wattage be?
  193. Experience on diy gene kit A-15
  194. Schematic? Mark Levinson No. 33H
  195. Need help please
  196. Op amps and Pass Transistors
  197. 400W Mosfet Amp Problem
  198. Dx line up comparisons and pcb order info?
  199. Sizing output stage
  200. Other interesting electronics forums ?
  201. TGM4 amplifier
  202. Lateral FET, Folded drivers, Biasing?
  203. Capacitor Replacement Opinions? - Marcof PPA-1h MC Amp
  204. Best place to start with channel stuck in Protect?
  205. Formula for CR Xo pole?
  206. 100W audio ampligfier - schematic!
  207. APEX PA Amp Turn on off mute - need design support against obsolet devices
  208. Tekko scored some transistors!
  209. help repairing JVC A-k11 integr amp
  210. 80W Hybrid Audio Amplifier!
  211. VINTAGE AMPLIFIERS
  212. Rotel RB990BX protection circuit issue
  213. Denon DRA 55 receiver manual request
  214. Confused about input sensitivity
  215. Biasing lateral FET's, component placement
  216. difference between these two amplifiers
  217. NAD 7130
  218. Nakamichi PA5E MK II service manual / schematic
  219. Peplacement for 2N5638 JFET Chopper Transistor ...?
  220. PHASE LINEAR 400 SERIES TWO
  221. to Change tweeter protection device
  222. 2 Signals THD format
  223. Borrowed a friends AMP and now it doesn't work! HELP!
  224. SSA variants and references
  225. SAE 2200. Could use some hints.
  226. Rotel vs NAD
  227. Assistance to improve 100W amplifier!
  228. Pre amp oscillate
  229. capacitor upgrade for Focal 2.150 amplifier
  230. pioneer a-88x recap,what else could be done
  231. Capacitive load testing
  232. Shunt Current Feedback
  233. Current Source amplifier for low impedance loads
  234. Hafler PC-19C Boards (Someone make a replacement?)
  235. vintage pioneer ad-360 wiring instructions
  236. Need amp with 200 kOhm input impedance
  237. PCB for audio amplifier with TDA7250!
  238. Fairchild A00-6
  239. Problems PS Audio Delta 100
  240. Hopefully an easy one for you...
  241. Deconstructing Rowland 7
  242. 20~50W amp
  243. Replacement of IRF730 for Sonic Frontiers SFL-1
  244. 20watt amplifier
  245. Current mirrors as collector loads in a symmetric amp
  246. Can I? Stereo in > parallel out into 1 speaker?
  247. c3519 and a1386 transistor replacement
  248. Prefered type of amplifier
  249. Some not very happy experience with my used GFA-555 II AMP
  250. How about a JFET input, TUBE VAS+buffer, and MOSFET output?

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