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  1. IRFP450 for output stage
  2. Fun Day
  3. Help needed for constant current source design.
  4. looking for a bridging adapter for power amplifier
  5. LF Ebay Speaker Protection Circuit
  6. Transistor audio ckt & service manual
  7. What Else Can Be Upgraded?
  8. Why bd139 Vbe multiplier?
  9. Aesthetix Atlas - Stereo Power Amplifier - who have heard ?
  10. Direct-coupled amplifier circuit
  11. Popping Crate GX-130C
  12. CPU Coolers on Ebay: junk or not?
  13. DIY STK-0050 module.
  14. Technics SU-Z25
  15. Sumo andromeda series 3 with bad channel
  16. DIY AMP For Auratone
  17. QED Vintage Amp ...
  18. BEST HIGH END POWER SUPPLY OF 35VDC
  19. Plate amp mod
  20. Impedance
  21. Which filter topology do you prefer?
  22. Transistor help for Sony STR-6120
  23. PREAMPLIFIER USHER P307 A
  24. burning hot amp!
  25. TO FUSE OR NOT TO FUSE?
  26. Advice on cheap amplifier repair
  27. My LME49600/49610 PCB design
  28. Low volume issue with Power Amp
  29. Ebay L150W FET Power Amplifier Board IRFP240*6
  30. Best 680uf / 250V capacitor
  31. Can anyone identify this IC package?
  32. Kenwood KA-907
  33. Looking for thread with the attached image
  34. help with warm up noise?
  35. Onkyo TX-SR607 repair
  36. PerfectA Mosfet Power Amp
  37. Fitting Big Capacitors in a QUAD 405
  38. Scrap amp
  39. Onkyo A-RV401
  40. Datasheets for Technics amplifier modules?
  41. Replacing old tube preamp on 1962 Magnavox
  42. High performance feedback for "Lowtech" amplifiers
  43. layout question
  44. HCA 1206
  45. Active highpass filter
  46. Martin Logan Dynamo 700 Plate Amp Issues
  47. Insane Hybrid Headphone Amp (IHHA)
  48. LME49830 PCB...
  49. Cambridge A500 help needed
  50. puzzled
  51. can I use a y-cable
  52. Help needed- slight noise after mod.
  53. BF871 and bf872 equivalent?
  54. Amplifier Issues....
  55. Schematic for Heathkit AR 1214
  56. Sansui G5700 Heat Problem
  57. audiolab 8000A ?
  58. i need service manual for soundcraft sa-1000
  59. Telos 390 clone PCB
  60. Yamaha A-720 amp and the loudness control
  61. Leak Delta 30 amp HELP!!
  62. 637 Amplifiers
  63. reducing thd
  64. Can anyone help with an old ETI magazine article ??
  65. One channel silent - until you increase the volume slightly - on two different amps!
  66. Single BJT amplifier ?
  67. A and T labs K6 amplifier
  68. EP4000 fan mod part number
  69. First Amp, where to start?
  70. adding ground wire to reduce periodic huming noise?
  71. Headphones as an ultimate reference
  72. Sony ta-fb940r humming after transformer replacement 5 connections on sec output ??
  73. help
  74. a complete amplifier
  75. Hartke 3500 Mosfet TA
  76. attenuator dB to reistance calculation
  77. Conn Organ Post Amp to Power Amp Question
  78. Maplin 1kw mosfet amp build thread
  79. Upgrade of a Technics A-800C MK2
  80. Questions about 400W mono amplfier
  81. this circuit will work?
  82. Current mirror using N-MOS 75N75
  83. DIY Project - Nytech CPA602 today ...
  84. Who has listened to the B&K 200.2 amp?
  85. Bryston 3BST operating conditions
  86. old amp need some help
  87. P3A problem - DC at output
  88. parasound hca 1000 blows fuses
  89. carver m1.5t ground hum
  90. High Power Zenquito PCB group buy?
  91. Online shop
  92. NJM4558 and clones - what is minimum supply voltage ?
  93. QUAD 405 main board fuse blow
  94. adjusting VBe
  95. Vertical MOSFETs for a PA amplifier OP
  96. Jvc RX709V Clicking
  97. Dx Super A - a module to be coupled to Dx amplifiers
  98. NAD C370 distorted sound on both channels
  99. Hafler 9505- Bias adjustment
  100. Lets talk about transconductance amplifiers
  101. Class A amp with fully symmetric design using only NPN output transistor
  102. JVC A-K100 Schematic
  103. Another Adcom Amp Question
  104. help with EV 7600 power amp
  105. Do you like listening to distortion?
  106. cyrus 2 repaint colour idea ??
  107. Denon AVR upgrades
  108. Powering an NCC200 frontend...
  109. Home made Cyrus PSX
  110. QUAD 606 MKI
  111. NJL4302/4281 Discontinued.
  112. Where can one buy the Leach Amplifier PCBs ?
  113. cyrus 3 amplifier cutting out
  114. Dx Turbo, the ultimate amplifier to be released before july 2013
  115. Dac 12v for car
  116. Proceed Amp troubleshooting / refurbish
  117. PTEC VI Power Amplifier
  118. troubleshooting old pionner GM-H100 :confused:
  119. I have a question with this amp
  120. Suggestions for mono block amplifier?
  121. HOW TO MAKE A PROPER AMPLIFIER
  122. PA Amplifier comparision
  123. All P-channel Regulator For TSSA Split Supply?
  124. Sherwood RV-8070R
  125. Power Amplifier
  126. Tekko dreams up another poweramp
  127. Help with a 6 channel board
  128. Recommended Speaker Protect Kits ???
  129. how to remove stains in your AMP
  130. DxXs - I am having ideas, things to play...the brain last neuronium is working hard
  131. QUAD 405 power off noise
  132. BC142/143 transistor replacement
  133. Problem with Biema FW900
  134. Tweeter Class A Amp
  135. DC offset
  136. Is 200W possible with simple topology ?
  137. Bypassing tone switch on Rotel RA-931 and RA-930AX
  138. Blown power filter cap
  139. Nytech ca252 help request!
  140. Monrio Asty Dual Mono Mosfet replacements
  141. Some more Wireless World articles archived
  142. Sanken 2SC2922/2SA1216
  143. LOUDSPEAKER PROTECTION
  144. Hafler P3000 -67V on output
  145. Opinions on a Concept
  146. Crowned
  147. Adcom GFA-555 Cap Question: 50V vs 63V
  148. Mark Levinson 333 output transistors
  149. ESP P27 PCB - Needs checking
  150. bridging amplifier with input transformers
  151. P3A-MORE UPGRADES
  152. only four stage AMP
  153. Which transistor is good one
  154. OPA2132P vs OPA2132PA WHAT'S THE DIFFERENCE?
  155. Power Supply ceramic caps burnt
  156. Crate PA head Oscillation at low volume
  157. Leak 2200 maintenance
  158. Biasing Hartke HA 7000
  159. Need help with IC connection
  160. Accidental Death of a DoZ...
  161. Elements between PCB-GND and Mains Earth in SolidState Power Amps - How to Calculate?
  162. power section pops like frying bacon
  163. Any idea at all how the AD8656 OPAMP compares to the AD8620?
  164. Repaired and tested LabGruppen 1000
  165. SONY Is it really true?
  166. Amplifier Simplicity and technology...
  167. Inverting stage not working...help!
  168. Luxman L100 repair
  169. DIY upgrading Meitner MTR-101
  170. should I buy this amp?
  171. 2 ohm with 100W class AB or D amplifier
  172. Ovation e-Amp is Completed
  173. metal film resistors
  174. Using power BJT's beyond their rated (but below their measured) Vceo?
  175. QED A 240 SA Restoration Project
  176. NAD 3240 PE Stereo Amplifier Blows Fuses Immediately
  177. Second attempt at Building my own amp from scratch
  178. Dx Disintegrated Circuit - Dx Dc
  179. Cairn Aria HE
  180. About to Replace Filter Capacitors with Different Type- Help Needed!
  181. What happens with bipolar Rbb as a function of collector current?
  182. would need more data on this amplifier
  183. New to DIY audio, and need some help
  184. Sansui AU-X517R repair and restoration
  185. LSK389 best working points?
  186. Big difference in amps - tag/rotel has me confused
  187. NEW MODEL > LG - ALLIEN
  188. Logitech Amp Reuse
  189. Panasonic FC caps for Class A amp power supply??
  190. DENON POA-6600
  191. Equivalent transistors
  192. NAD 906 silent
  193. Major modification design help needed
  194. HIFI 700W Subwoofer Mono Amplifier Board By 10 Pairs 1943/5200 Amp Board For Subwoofe
  195. Balanced to unbalanced schematic, is this one good?
  196. Altec 9440A how does it sound ?
  197. KSA-50S no sound problem- please help
  198. WSF and DMOSFET´s
  199. DC OFFSET AT ROTEL
  200. acurus amp bias
  201. Denon AVR-5805 firmware needed
  202. Amp not amping? o.O
  203. amplifier biasing help
  204. How to lower the gain of this headphone amp
  205. The EasyWay AMP
  206. Kenwood A-5S stereo amplidier
  207. can you hear the ringing?
  208. Phase Linear 4000 Series I Transistors
  209. Needed: Amplifier schematic, 4.5V to 9V supply
  210. Carver M-1.0t Repairs
  211. How much VAS current
  212. Cambridge Audio A1 MK3 SE repair (TDA1514 chips burned)
  213. Biasing EF output class B amps...
  214. Design for SS amplifier with OPT
  215. bridgin 2 channel amplifier with output transformer:Mcintosh style
  216. Technics SU-7100
  217. replacing TIP36C transistor with 2SC5200
  218. Transistor matching Questions; Again
  219. question about amplifier push|pull
  220. How Do You Perceive THD at HF?
  221. amplifier Kenwood A-5S
  222. power amp kit , L6 VS L7 VS QUAD 45
  223. Rate these Caps
  224. Aragon 24K sp PreAmp by Mondial Designs, possiblity for component/wiring upgrades?
  225. New guy with questions about Adcom 545 recap
  226. Help(tri-amping): Too much gain in my ATC power amp
  227. N-mos Power Amp , my project need some help , Thanks .
  228. Bridging a SS amp with a tuber inverter section
  229. Static in fender stage 1600
  230. STRANGE CAPACITOR
  231. sub woofer
  232. mixer and crosstalk
  233. clipping indicator
  234. The Top Three DIY Amplifiers
  235. The Keantoken Amplifier
  236. Simple Killer Amp, Aspen Amps, Aussie Amps
  237. quad 33 comments please
  238. Krell KSA-100S left channel getting hot
  239. bridging B5 yamaha amplifier
  240. Amp for Pod 2.0 & Zoom 9003 with TA8252H
  241. Faulty Yamaha DSP-A2070
  242. Mod: move if needed: amp without SS or tubes?
  243. Got a Yamaha AX-500U for $25.00
  244. 250W Simple Power Amp Project ??
  245. old school amplifier Pioneer GM4200 SQ
  246. Carver PM1.5 problem
  247. Simple amp circuit obsevations
  248. Some questions about Yamaha R-S700 receiver
  249. New home brew amp module
  250. ezDAC Site Back Up

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