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  1. Phils Amp - Progress?
  2. Mains Hum - Are cheap caps worth it?
  3. standard AB bias heatsinking versus enriched class A
  4. Make your own custom ICs for very cheap !
  5. class A to class AB switch
  6. Quad 405 clone
  7. FIND: ORIGINAL OBSOLETE TRANSISTORS
  8. Help! I let some magic smoke out :(
  9. L-speed current sea-saw circuit, simpler the better
  10. Thorens Restek.. Vector Pre Amp
  11. connecting two 110v amplifiers in series on 220v mains
  12. Postive output voltage only
  13. emotiva upa2
  14. Super distorted old amplifier problem
  15. Recommend amplifier to build
  16. Transistor case coupling??
  17. Faulty amp?
  18. Nikoo A-300D, recapping dilemma...
  19. L12-2 CFP Output amp 120W*2 8R
  20. SoundTech PowerSource1300 NOISE
  21. Anyone tried the Renardson Output Stage ?
  22. Simple Killer amplifier
  23. Rotel 820AX problem - any known issues?
  24. Cause of extreme voltage swing at turn on
  25. Amplifier testing on PC with DAAS
  26. Wharfedale EVP-15P amplifier fault
  27. Preamp to match Meridian 206 DS cd player
  28. Crown Com-Tech 400 Dead Channel?
  29. CLASS A POWER AMP
  30. Ultimatest Passive Tone Control Network based on James-Baxandall's topology wanted
  31. Adcom GFA-535 Transistor sub
  32. Pioneer A400 transformer
  33. Amplifier volume knob noise
  34. 100W Hi-Fi amplifier-Help!?
  35. Did someone had tested this current feedback power amp ?
  36. Technics SU-V40
  37. opa827 bypassing,pioneer A-8 tone controls
  38. What Degrades Channel Separation in a Stereo Power Amp?
  39. Recommendation for audio amplifier!?
  40. NAD C320 Can the protection be adjusted
  41. transistor help please
  42. NAIM Nait5i V2 transformer voltage
  43. help fixing a tone control circuit
  44. Jeff Rowland Model 7 mk2 bias adjustement
  45. transistor source
  46. Need help repairing Denon AVR 5803
  47. My first designed amp
  48. Hall-effect current sensor for output stage over-current protection
  49. floating supply amp with single supply
  50. WHICH IS BETTER TRANSISTOR MJE340/350 OR BD139/BD140
  51. Circuit Translation Services
  52. Cairn 4807 Integrated Amplifier Schematic/Service Manual wanted
  53. Aragon 4004 slow relay problem
  54. Sansui AU-6900 Questions and problems
  55. Oscillation only at raising slope
  56. Pure Reference Class A Monoblock
  57. Determining current limit
  58. digital amp modelling
  59. Help in improving a Cambridge P500 (more caps)
  60. MC250 Input Section Voltage Question
  61. Need help with Nad 3020A
  62. Jitter or phase noise in LTSPice
  63. The Sisian Amp
  64. Darlington or Sziklai (compound) pair output stages?
  65. Amplifier repair, some pointers please?
  66. Powering A Tough Speaker (Split from Simple Symmetrical Amplifier)
  67. how can the wattage be?
  68. Experience on diy gene kit A-15
  69. Schematic? Mark Levinson No. 33H
  70. Need help please
  71. Op amps and Pass Transistors
  72. 400W Mosfet Amp Problem
  73. Dx line up comparisons and pcb order info?
  74. Sizing output stage
  75. Other interesting electronics forums ?
  76. TGM4 amplifier
  77. Lateral FET, Folded drivers, Biasing?
  78. Capacitor Replacement Opinions? - Marcof PPA-1h MC Amp
  79. Best place to start with channel stuck in Protect?
  80. Formula for CR Xo pole?
  81. 100W audio ampligfier - schematic!
  82. APEX PA Amp Turn on off mute - need design support against obsolet devices
  83. Tekko scored some transistors!
  84. help repairing JVC A-k11 integr amp
  85. 80W Hybrid Audio Amplifier!
  86. VINTAGE AMPLIFIERS
  87. Rotel RB990BX protection circuit issue
  88. Denon DRA 55 receiver manual request
  89. Confused about input sensitivity
  90. Biasing lateral FET's, component placement
  91. difference between these two amplifiers
  92. NAD 7130
  93. Nakamichi PA5E MK II service manual / schematic
  94. Peplacement for 2N5638 JFET Chopper Transistor ...?
  95. PHASE LINEAR 400 SERIES TWO
  96. to Change tweeter protection device
  97. 2 Signals THD format
  98. Borrowed a friends AMP and now it doesn't work! HELP!
  99. SSA variants and references
  100. SAE 2200. Could use some hints.
  101. Rotel vs NAD
  102. Assistance to improve 100W amplifier!
  103. Pre amp oscillate
  104. capacitor upgrade for Focal 2.150 amplifier
  105. pioneer a-88x recap,what else could be done
  106. Capacitive load testing
  107. Shunt Current Feedback
  108. Current Source amplifier for low impedance loads
  109. Hafler PC-19C Boards (Someone make a replacement?)
  110. vintage pioneer ad-360 wiring instructions
  111. Need amp with 200 kOhm input impedance
  112. PCB for audio amplifier with TDA7250!
  113. Fairchild A00-6
  114. Problems PS Audio Delta 100
  115. Hopefully an easy one for you...
  116. Deconstructing Rowland 7
  117. 20~50W amp
  118. Replacement of IRF730 for Sonic Frontiers SFL-1
  119. 20watt amplifier
  120. Current mirrors as collector loads in a symmetric amp
  121. Can I? Stereo in > parallel out into 1 speaker?
  122. c3519 and a1386 transistor replacement
  123. Prefered type of amplifier
  124. Some not very happy experience with my used GFA-555 II AMP
  125. How about a JFET input, TUBE VAS+buffer, and MOSFET output?
  126. AVA Insight+ 240
  127. modern incarnations of Hiraga Le Monstre
  128. Noise Reduction Solutions
  129. schematic error
  130. AV400
  131. The double blind auditions thread
  132. Hum (ground loop?) issue when using HT pass through on SDS-254 amp
  133. PCB for QUASI Amplifier for Beginners with changes!?
  134. NAD 2100 protection on!
  135. Trying to add pre out/main in to integrated amplifier. Am I thinking right?
  136. THD measurement in spice
  137. Leach Amp Project
  138. Threshold Fet 2 Series 2 preamp
  139. sony HST-550W service manual question???
  140. NAD T762 - Circuit Diagram - Help!
  141. Another Crescendo ME Problem...
  142. Grundig Console KS 526
  143. Class S
  144. Simple sub amp a 10-year old could build?
  145. Borbely-Lender True Symmetry
  146. Cyrus I (issue 07)
  147. Schematic for audio amps
  148. Coupling cap 360deg phase shift??
  149. very first "blameless" amplifier prior 1969
  150. About optimos pcb
  151. How to simulate an OLG of the TMC amp
  152. NAD 3020 Rebuild - thermal breaker replacement/source?
  153. STK4143 MKII Datasheet
  154. Capacitors for this amp ?????
  155. PSA 150 S (pure sound amplifier)---help needed
  156. Amp is not bi-wired Speakers are :(
  157. pioneer sx 3800
  158. Help with a Hafler amp and AV receiver setup
  159. Krell KMA-100 DC Offset
  160. Headphone amp NE5532
  161. Limit Amplifier
  162. NAD 3100 amplifier tone POTs
  163. need data on ARC 4700 and ARC 4800
  164. Does it matter? (CLG/OLG question)
  165. Heatsinking drivers, do most drivers get very hot?
  166. Can anyone shed some light please?
  167. Is this heatsink suitable for this amp?
  168. At a loss on thins one
  169. MILLER CAPS ...
  170. Diodes instead of or across emitter resistors
  171. Need help with an old amp
  172. B&K AV6000 Sers II Running HOT
  173. How about even simpler with good clean sound?
  174. Biasing Question
  175. Odd regulator for frontend
  176. Rotel RA-312 - only one channel works
  177. Very simple class B amplifier
  178. BSH103 / BSH203 flicker noise corner
  179. Blameless-like amp burnt channel need help to prevent that happening again!
  180. Need meter light alternative for Sunfire Cinema Grands
  181. Aragon 4004 power amp channel imbalance
  182. Transistor switch audio mute
  183. this class a amp is good?
  184. P3A MODIFIED VERSION
  185. Rotel RB-970BX Upgrade?
  186. The most common cause of speaker buzz from an amp?
  187. can my sony amp be tweeked
  188. List of the best sounding amplifiers
  189. 400 WATTS into a 5.25" 45W RMS Speaker ?
  190. Upgrade for TIP35/36 outputs
  191. ohm's issue
  192. TEAC AG-V7700
  193. Technics SU-V7 not functioning
  194. Metempsychosis of a NAD
  195. Capacitor complacency
  196. sink or not ?
  197. Harman Kardon recycle project
  198. Marantz 2220 Right Channel Static
  199. 2 OHMS DRIVING
  200. Need a tough TO-220 Bipolar...
  201. Can a build up of dust effect the operation of a PCB?
  202. Dx hybrid amplifier will be produced soon
  203. 2N2907A instead of BC179
  204. Audioanalyse PA-60 (PA60) Power Amp - where to get Schematic ??
  205. Hafler DH 200 grounding
  206. Cyrus 2 amp distort when crank up volume
  207. Rotel RB-1010 power amp varistor!
  208. Two transformers on one AC plug?
  209. All CFP Non Global Feedback Amplifier
  210. JFET input, MOSFET VAS, VERTICAL output
  211. Should I remove These Caps?
  212. bench testing
  213. Dx Zuper A - a new amplifier to be released in July 17th - 2012
  214. Spice models for 2SD438/2SB560
  215. 2sc1318 transistor source or equivalent?
  216. How to take apart an old Kenwood receiver?
  217. Next Future Amplifier Jfet and Bjt
  218. Parallel Thermaltrak with standard bjt of same number?
  219. Phase Splitter
  220. "unfolded diff pair" headphone amp
  221. Heat sink size, Need help in determining.
  222. suggestions for improvement (Old Consumer Amp)
  223. Rail Lifter/Boost Circuit (ala TDA1562q)
  224. Problem with Pioneer QX4000 - have some info and circuit diagram!
  225. A little hum on my subwoofer
  226. BF822/MJE250 substitutes ?
  227. scrape sound in my subwoofer volume
  228. P3A Elliott
  229. Adccom GFA-585 Poping Noise & Blue cable from transformer is not plug in.
  230. Lateral output amp with jfet input
  231. spice model for 2SK711
  232. Info on this pair of A1943/C5200
  233. Which AMP should I use?
  234. Balance Pot Replacement
  235. Transistor Replacement 2N5551
  236. ONE MORE P3A QUESTION
  237. Proton am-30
  238. needed sony transformer specs
  239. I scored an entire 3000pc reel of Genuine Toshiba 2SK117-BL smd fets today!!!
  240. Preamps and line level...
  241. Some help please with Wharfedale 2050A.
  242. Simple Symetrical Amplifier
  243. Samson Servo 550 won't turn on
  244. replacement for 2SC4793 and 2SA1837
  245. Hybrid bright idea
  246. Low power amplifier
  247. Quad 44/405
  248. finding feedback line and gain controlling resistor
  249. How to bias Long tail pair....??
  250. LM3886 driving long cable instability

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