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  1. QED Vintage Amp ...
  2. BEST HIGH END POWER SUPPLY OF 35VDC
  3. Plate amp mod
  4. Impedance
  5. Which filter topology do you prefer?
  6. Transistor help for Sony STR-6120
  7. PREAMPLIFIER USHER P307 A
  8. burning hot amp!
  9. TO FUSE OR NOT TO FUSE?
  10. Advice on cheap amplifier repair
  11. My LME49600/49610 PCB design
  12. Low volume issue with Power Amp
  13. Ebay L150W FET Power Amplifier Board IRFP240*6
  14. Best 680uf / 250V capacitor
  15. Can anyone identify this IC package?
  16. Kenwood KA-907
  17. Looking for thread with the attached image
  18. help with warm up noise?
  19. Onkyo TX-SR607 repair
  20. PerfectA Mosfet Power Amp
  21. Fitting Big Capacitors in a QUAD 405
  22. Scrap amp
  23. Onkyo A-RV401
  24. Datasheets for Technics amplifier modules?
  25. Replacing old tube preamp on 1962 Magnavox
  26. High performance feedback for "Lowtech" amplifiers
  27. layout question
  28. HCA 1206
  29. Active highpass filter
  30. Martin Logan Dynamo 700 Plate Amp Issues
  31. Insane Hybrid Headphone Amp (IHHA)
  32. LME49830 PCB...
  33. Cambridge A500 help needed
  34. puzzled
  35. can I use a y-cable
  36. Help needed- slight noise after mod.
  37. BF871 and bf872 equivalent?
  38. Amplifier Issues....
  39. Schematic for Heathkit AR 1214
  40. Sansui G5700 Heat Problem
  41. audiolab 8000A ?
  42. i need service manual for soundcraft sa-1000
  43. Telos 390 clone PCB
  44. Yamaha A-720 amp and the loudness control
  45. Leak Delta 30 amp HELP!!
  46. 637 Amplifiers
  47. reducing thd
  48. Can anyone help with an old ETI magazine article ??
  49. One channel silent - until you increase the volume slightly - on two different amps!
  50. Single BJT amplifier ?
  51. A and T labs K6 amplifier
  52. EP4000 fan mod part number
  53. First Amp, where to start?
  54. adding ground wire to reduce periodic huming noise?
  55. Headphones as an ultimate reference
  56. Sony ta-fb940r humming after transformer replacement 5 connections on sec output ??
  57. help
  58. a complete amplifier
  59. Hartke 3500 Mosfet TA
  60. attenuator dB to reistance calculation
  61. Conn Organ Post Amp to Power Amp Question
  62. Maplin 1kw mosfet amp build thread
  63. Upgrade of a Technics A-800C MK2
  64. Questions about 400W mono amplfier
  65. this circuit will work?
  66. Current mirror using N-MOS 75N75
  67. DIY Project - Nytech CPA602 today ...
  68. Who has listened to the B&K 200.2 amp?
  69. Bryston 3BST operating conditions
  70. old amp need some help
  71. P3A problem - DC at output
  72. parasound hca 1000 blows fuses
  73. carver m1.5t ground hum
  74. High Power Zenquito PCB group buy?
  75. Online shop
  76. NJM4558 and clones - what is minimum supply voltage ?
  77. QUAD 405 main board fuse blow
  78. adjusting VBe
  79. Vertical MOSFETs for a PA amplifier OP
  80. Jvc RX709V Clicking
  81. Dx Super A - a module to be coupled to Dx amplifiers
  82. NAD C370 distorted sound on both channels
  83. Hafler 9505- Bias adjustment
  84. Lets talk about transconductance amplifiers
  85. Class A amp with fully symmetric design using only NPN output transistor
  86. JVC A-K100 Schematic
  87. Another Adcom Amp Question
  88. help with EV 7600 power amp
  89. Do you like listening to distortion?
  90. cyrus 2 repaint colour idea ??
  91. Denon AVR upgrades
  92. Powering an NCC200 frontend...
  93. Home made Cyrus PSX
  94. QUAD 606 MKI
  95. NJL4302/4281 Discontinued.
  96. Where can one buy the Leach Amplifier PCBs ?
  97. cyrus 3 amplifier cutting out
  98. Dx Turbo, the ultimate amplifier to be released before july 2013
  99. Dac 12v for car
  100. Proceed Amp troubleshooting / refurbish
  101. PTEC VI Power Amplifier
  102. troubleshooting old pionner GM-H100 :confused:
  103. I have a question with this amp
  104. Suggestions for mono block amplifier?
  105. HOW TO MAKE A PROPER AMPLIFIER
  106. PA Amplifier comparision
  107. All P-channel Regulator For TSSA Split Supply?
  108. Sherwood RV-8070R
  109. Power Amplifier
  110. Tekko dreams up another poweramp
  111. Help with a 6 channel board
  112. Recommended Speaker Protect Kits ???
  113. how to remove stains in your AMP
  114. DxXs - I am having ideas, things to play...the brain last neuronium is working hard
  115. QUAD 405 power off noise
  116. BC142/143 transistor replacement
  117. Problem with Biema FW900
  118. Tweeter Class A Amp
  119. DC offset
  120. Is 200W possible with simple topology ?
  121. Bypassing tone switch on Rotel RA-931 and RA-930AX
  122. Blown power filter cap
  123. Nytech ca252 help request!
  124. Monrio Asty Dual Mono Mosfet replacements
  125. Some more Wireless World articles archived
  126. Sanken 2SC2922/2SA1216
  127. LOUDSPEAKER PROTECTION
  128. Hafler P3000 -67V on output
  129. Opinions on a Concept
  130. Crowned
  131. Adcom GFA-555 Cap Question: 50V vs 63V
  132. Mark Levinson 333 output transistors
  133. ESP P27 PCB - Needs checking
  134. bridging amplifier with input transformers
  135. P3A-MORE UPGRADES
  136. only four stage AMP
  137. Which transistor is good one
  138. OPA2132P vs OPA2132PA WHAT'S THE DIFFERENCE?
  139. Power Supply ceramic caps burnt
  140. Crate PA head Oscillation at low volume
  141. Leak 2200 maintenance
  142. Biasing Hartke HA 7000
  143. Need help with IC connection
  144. Accidental Death of a DoZ...
  145. Elements between PCB-GND and Mains Earth in SolidState Power Amps - How to Calculate?
  146. power section pops like frying bacon
  147. Any idea at all how the AD8656 OPAMP compares to the AD8620?
  148. Repaired and tested LabGruppen 1000
  149. SONY Is it really true?
  150. Amplifier Simplicity and technology...
  151. Inverting stage not working...help!
  152. Luxman L100 repair
  153. DIY upgrading Meitner MTR-101
  154. should I buy this amp?
  155. 2 ohm with 100W class AB or D amplifier
  156. Ovation e-Amp is Completed
  157. metal film resistors
  158. Using power BJT's beyond their rated (but below their measured) Vceo?
  159. QED A 240 SA Restoration Project
  160. NAD 3240 PE Stereo Amplifier Blows Fuses Immediately
  161. Second attempt at Building my own amp from scratch
  162. Dx Disintegrated Circuit - Dx Dc
  163. Cairn Aria HE
  164. About to Replace Filter Capacitors with Different Type- Help Needed!
  165. What happens with bipolar Rbb as a function of collector current?
  166. would need more data on this amplifier
  167. New to DIY audio, and need some help
  168. Sansui AU-X517R repair and restoration
  169. LSK389 best working points?
  170. Big difference in amps - tag/rotel has me confused
  171. NEW MODEL > LG - ALLIEN
  172. Logitech Amp Reuse
  173. Panasonic FC caps for Class A amp power supply??
  174. DENON POA-6600
  175. Equivalent transistors
  176. NAD 906 silent
  177. Major modification design help needed
  178. HIFI 700W Subwoofer Mono Amplifier Board By 10 Pairs 1943/5200 Amp Board For Subwoofe
  179. Balanced to unbalanced schematic, is this one good?
  180. Altec 9440A how does it sound ?
  181. KSA-50S no sound problem- please help
  182. WSF and DMOSFET´s
  183. DC OFFSET AT ROTEL
  184. acurus amp bias
  185. Denon AVR-5805 firmware needed
  186. Amp not amping? o.O
  187. amplifier biasing help
  188. How to lower the gain of this headphone amp
  189. The EasyWay AMP
  190. Kenwood A-5S stereo amplidier
  191. can you hear the ringing?
  192. Phase Linear 4000 Series I Transistors
  193. Needed: Amplifier schematic, 4.5V to 9V supply
  194. Carver M-1.0t Repairs
  195. How much VAS current
  196. Cambridge Audio A1 MK3 SE repair (TDA1514 chips burned)
  197. Biasing EF output class B amps...
  198. Design for SS amplifier with OPT
  199. bridgin 2 channel amplifier with output transformer:Mcintosh style
  200. Technics SU-7100
  201. replacing TIP36C transistor with 2SC5200
  202. Transistor matching Questions; Again
  203. question about amplifier push|pull
  204. How Do You Perceive THD at HF?
  205. amplifier Kenwood A-5S
  206. power amp kit , L6 VS L7 VS QUAD 45
  207. Rate these Caps
  208. Aragon 24K sp PreAmp by Mondial Designs, possiblity for component/wiring upgrades?
  209. New guy with questions about Adcom 545 recap
  210. Help(tri-amping): Too much gain in my ATC power amp
  211. N-mos Power Amp , my project need some help , Thanks .
  212. Bridging a SS amp with a tuber inverter section
  213. Static in fender stage 1600
  214. STRANGE CAPACITOR
  215. sub woofer
  216. mixer and crosstalk
  217. clipping indicator
  218. The Top Three DIY Amplifiers
  219. The Keantoken Amplifier
  220. Simple Killer Amp, Aspen Amps, Aussie Amps
  221. quad 33 comments please
  222. Krell KSA-100S left channel getting hot
  223. bridging B5 yamaha amplifier
  224. Amp for Pod 2.0 & Zoom 9003 with TA8252H
  225. Faulty Yamaha DSP-A2070
  226. Mod: move if needed: amp without SS or tubes?
  227. Got a Yamaha AX-500U for $25.00
  228. 250W Simple Power Amp Project ??
  229. old school amplifier Pioneer GM4200 SQ
  230. Carver PM1.5 problem
  231. Simple amp circuit obsevations
  232. Some questions about Yamaha R-S700 receiver
  233. New home brew amp module
  234. ezDAC Site Back Up
  235. Use a Pioneer A400 as a Power Amplifier
  236. JLH Class A headphone amp from eBay...setting bias/output help needed
  237. Creek 4330R Integrated Amp
  238. NAD 705 strange behaviour, intermittent fault?
  239. 47 Labs 0347 amplifier
  240. Mc2505
  241. Manual Service mc2505 seral AT
  242. 2 Channel SS is Awesome!!
  243. Sony TA-VE700 schematic
  244. Another Extrema 100watt class A power amplifier
  245. Hum on Avondale NCC200 derivative amp
  246. PLENTY OF IXTK 62N25 mega mosfets
  247. Hafler DH-220 one channel out, no bias
  248. Doz Output capacitor
  249. NAD T762
  250. Need Help. Woofer gets pushed out and hum when I turn on amp

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