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  1. Kenwood KA7300 bias check points
  2. 2x 8 ohms split into 8 ohm channel on amp?
  3. 47 volts on output resistors?
  4. lm3886 sound
  5. Yamaha RX-V595 display panel stayed on 3~5 seconds then turned off
  6. Can power supply filter capacitors affect DC offset voltage?
  7. Tandem woofers, low combined DC resistance - effects on amplifier?
  8. Looking for a small signal NPN with no Quasi Saturation: MEASURED DATA
  9. Yamaha CR800 poor bass performance
  10. Replacement transistors
  11. Yamaha A520
  12. Waldhauer and frequency doublets
  13. Powering op amps from amplifier PSU
  14. NOS MOSFETs.
  15. LTSpice model for a 2V zener or less
  16. Film capacitors on AC
  17. Sansui G22000 with Updated Transistors/Low Power Output
  18. Proline 3000 Input Board
  19. New or amp or...?
  20. Bias adjustment pots - how to identify a bad one
  21. Marantz PM310 Upgrade Project
  22. Auxiliary transformer
  23. 150 watt mono Class A/B amplifier to drive 10" subwoofer
  24. Yamaha DSP-AX2 no signs of life.
  25. Lehmann Linear case drawings?
  26. Trim pot values
  27. Help With My Class AB Biasing, Unbalanced npn, pnp current
  28. Sub filter (Bass is course)
  29. Apex BA2000 protection circuit
  30. Class A vs class AB
  31. TA-4650: Bringing it back to life
  32. First shot at the "Blameless" amp topology
  33. HELP: Nakamichi CA-7 Volume Gear Parts
  34. Repair or replacement Technics SU-V8
  35. problem with my apex ax14
  36. Filter capacitors in Toshiba SC-335 power amp
  37. Total beginner question please - XLR ground loop
  38. Technics SU-V65A Troubleshooting please
  39. BUT30V NPN transsistors, amplifier material?
  40. My+Your Opinion And Experience On Matched Transistor and MOSFETS
  41. Any Experience With Holton Precision Amp Modules?
  42. Oscillations on blameless EF amp
  43. Allen 100 Watt amps
  44. Class A bias vs input signal
  45. Technics SA-X11WL distorted output
  46. Apex AX 20 amplifier problem....
  47. My CFP design, need your help!
  48. Audiolab 8000a spontaneously loud
  49. Sansui SE-7
  50. Sanyo STK 404-140
  51. Cyrus 1 Output Transistors
  52. The Fisher 202 - hum problem
  53. Removing Balance & Panorama from Crown IC 150a Preamp
  54. How Can I design a OCL AMP?
  55. What the Cap!!!!?
  56. Need help reviewing a design and layout.
  57. Beginner Solid State Amp (and speakers)
  58. Interference from output coils?
  59. Linear design sa-8200 rambler model stopped working
  60. Revox B-780 Help
  61. Quasi AB driver A
  62. PSU and amp in separate encolsures
  63. FED16BT replacment
  64. Audio Power supply
  65. *Wanted* Cerwin Vega CVA28 service manual
  66. Marantz 2225 Voltage Adjustment Issue
  67. New design 135W 8, 270W 4
  68. Turntable DC Supply 24V Very Complex/Strange
  69. PCB Sanyo
  70. Electrocompaniet AW-100 troubleshooting (right channel intermittent soft popping)
  71. Sony TAN-5550 ancient VFet amp, can I just turn it on?
  72. Blown amp section on NAD 7020 - What to check now?
  73. Really weird problem with volume control
  74. TO-3 power transistor orientation
  75. The Amplifier of 100 Transistors - Blameless using small signal devices as outputs!
  76. Marantz model 240 transistors
  77. Derating, am I missing something?
  78. Alpine 3539 faulty? (DC between RCA shield and supply ground)
  79. yamaha b1 where are 2sk77?
  80. STK42334MK5 diy amp Relay problem
  81. IC + FET redesign
  82. AudioSource AMP300 Troubleshooting
  83. Audio Research D-350 Power Meter Window
  84. Sony TA-F707es - Noise/hiss on on one channel
  85. Possible design issue in early MF B1 amp?
  86. Problem with preamp design
  87. DAC to PWR amp almost blown speakers
  88. Pioneer VSX-519V
  89. Lamp holders - can this type still be obtained?
  90. Does output volume differ btw diff. Opamps?
  91. astable
  92. Transistor replacement
  93. Seas Bragi kit amplifier
  94. Sony TA-N77ES Amplifier replacement parts 2SK244
  95. choices, choices !!!
  96. Need help to double check power supply.
  97. Variable start - up
  98. Phase Linear 400 & 4000 died while in storage
  99. Borbely MILLENNIUM-200
  100. Sausui 9090 Bias issue
  101. A Directory of Apex Audio Amplifiers
  102. Digital potentiometer and a 3 digit display
  103. Help Adding a Current Mirror to a Diff Pair Res Calc
  104. Electrocompaniet AW 250 DMB-R bias
  105. caps for quad 405 amp
  106. Technics SE-A5 Static/Sound in Right Channel
  107. cheapest per watt amplifier design
  108. Sound card FFT chart on a blameless amplifier
  109. Do smaller and paralleled caps sound better as output caps
  110. Mcintosh....ma1700
  111. LME49830
  112. K176 vs. K216
  113. Can I connect a seperate pre/pro to my Onkyo TX-sr805?
  114. antibump
  115. Regarding a Toshiba SY335 preamp
  116. 1/4in shaft and 6mm knob fit question?
  117. Sansui 5000A hum
  118. Two-Stage Push-Pull MOSFET Class-A Amp
  119. schematic for LM3886
  120. Sony STR-DH740 no sound output (possibly transformer)
  121. Capacitance 2x8000 = 10000+6800
  122. Variable Resistor V Semi-Fixed
  123. Volume-Potentiometer replacement rule?
  124. JVC rx8010vbk amp cuts right back off
  125. Superphon Revelation Basic
  126. More lfet questions
  127. Marantz pm7200 Breaking left channel
  128. Help identify name of this connector.
  129. Which way is best for power supply?
  130. Suggestions schematic for a new amp project
  131. NAD 3220PE Project
  132. Mark Levinson ML-9 amp help needed
  133. To buffer or not to buffer that is the question.
  134. Adcom GFA-555 mods
  135. allfet circlotron
  136. PNP LTP vs NPN LTP
  137. Troubleshooting amp repair
  138. Arcam CDS27 vs Marantz SA8005
  139. JBL MPX 600
  140. No DC Offset Adjustment Pots.
  141. Found this board dumped
  142. Class A BJT Powering on question. Will this send a jolt to my power amp?
  143. Need tips for recapping Sansui 9090
  144. Elusive noise on left channel
  145. OpAmpAmp for sub
  146. Monarch / Neckermann 1960s first generation solid state receiver recap
  147. Aragon 24k price
  148. Adcom GFA-555 II South Africa
  149. Marantz MA700 help
  150. Searching for service manual of Hafler 945
  151. Krell KSA-200B Bias
  152. Blast from the past - Kenwood KA-80
  153. Conrad Johnson PV10A--Classe CA 100
  154. A three transistor compound pair?
  155. Need some pointers with finishing touches on mosfet amp repair
  156. pioneer sx-6000 - need to know power supply board voltage values
  157. Transistor gain matching
  158. JFET differential pair trans. choice
  159. Can i replace 2SB755 / 2SD845 Toshibas for 2SA1494 / 2SC3858 Sanken ?
  160. Audio Nirvana,Nap 140 clones.
  161. Parasound A21 problem
  162. bridge rectifier question
  163. buzz from amp when connected to speaker
  164. Aragon 8008BB Voltage Conversion
  165. Sansui AU-6600 Bias
  166. Measured data on the J105 Nchannel JFET
  167. SE Amp operation question
  168. Aiwa C30 recap and OP amps
  169. Explanation of Class A
  170. Speaker protection 12v amp
  171. NAD C 165BEE
  172. Hafler 9505 hum/buzz noise
  173. LM334 makes quite a nice 5.5 mA current source, works down to 2.0-2.2 volts
  174. HELP! Higher Fidelity Industries HF-138 shematic
  175. no mention of active loads in Bob Cordell's book
  176. Servo controlled Op Amp board on Ebay
  177. Harman Kardon receiver
  178. McCormack DNA 0.5 Re Cap
  179. Sony TA-3600 BI-AMP Very Low Volume
  180. noisy marantz 1050
  181. Designing 200w Amplifier. Oscillations or something else? need help please.
  182. How do I make a speaker crossover to only hear range of human voice?
  183. Concept: Bridged amplifier with dc bias on the output
  184. Cambridge audio P50 bias adjustment
  185. Krell FPB catastrophic protection conditions?
  186. 50 solid ..years
  187. Yamaha M65 Bias adjustment
  188. Can I build an amp to do it all?
  189. Pioneer SX-1000TW Repair
  190. Sony 2.0 receiver "protect" mode test/repair
  191. question about the jlh amplifier and the capacitance multiplier power supply
  192. Maximum power output of a single pair of MT-200 vs TO-264
  193. Dissipante 5u UMS heatsinks
  194. Output stage power
  195. 4 channel amplifier build
  196. replacing a driver
  197. A rare find.
  198. Class A to class AB transition power rating
  199. Volume control for Naim 140 kit?
  200. Understanding Transistor amplifier with an online simulation
  201. New GFA-565 circuit boards!
  202. Yamaha A700 repair attempt
  203. Amp advice
  204. Build low power Transistor Amplifier
  205. Capacitor Array on Power and Ground planes How to Avoid Resonance?
  206. Getting 2sk1058/2sj162 and current output
  207. Several schemes
  208. HPF/LPF/BP etc via All Pass
  209. Technics amplifer thermal compound okay for power IC
  210. Input impedance of Rotel RB-981
  211. Yamaha c70 Part ID
  212. Overly bright set up: audiolab 8000a with mission 751
  213. preventative maintenance for Adcom GFA-555 ?
  214. Speakon Connectors for Hi-Fi
  215. Nelson Jones 10W
  216. 8-channel amplifier
  217. LTSPICE was wrong: MOSFET transconductance "gm" is NOT higher than bipolar gm
  218. NAD 302
  219. P3A Problems!
  220. Vintage Sansui restoration
  221. Sansui AU-11000 output emitter short.
  222. Arcus Finest Class Amp 200
  223. Audio Concepts AC5000 Amplifier
  224. Is selector switch close to inputs really necessary?
  225. Help for Sansui Au -222 toggle switch wiring
  226. Bias voltage for Class A/B output and output transistor choices
  227. How 2 Repair M&K V2b subwoofer crossover & swap speaker jacks
  228. Hafler DH-500 overheating
  229. AN7062
  230. transistors Marantz 1122 dc
  231. Dual preamplifier Type 2683 Lemo connector circuit diagram and colour coding
  232. Dynaco PAT-5: channel imbalance and dead headphone jack?
  233. Just another simple hybrid
  234. Toshiba SC335 power supply capacitors
  235. 300 watts RMS out of 2 mosfets ?
  236. current biased collector
  237. Technics SU-G50 fan starts upon start up, volume motorised crazy
  238. TO220/D2PAK Lateral MOSFETs
  239. Cyrus 2 crackling sound help.
  240. Did I just toast my Hafler XL-280? Need help/advice!
  241. hepl me please, need fast help
  242. Yamaha's new floating and balanced power amplifier
  243. High Speed Output Stage Design
  244. Accuphase E-204 amplifier - restoration help needed!
  245. Need help reading an amplifier schematic
  246. NAD Power Supply Question
  247. ECX10N20 choke loaded source follower ?
  248. 8/16W TIP3055 class A for POWER WASTING
  249. Kenwood L-07m upgrades?
  250. Onkyo TX-NR616 7.1 analog input help

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