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  1. what is the value of D3 and D4 diode in the sch and whats the use of them?
  2. Le Pacific RIAA preamplifier
  3. Replacing 100KAX2 with 100KBX2
  4. X250 - My next project.
  5. What Did I Break Now?
  6. Quad FM4 tuner mamual mod
  7. Quick (faulty?) op amp question
  8. Need a replacement for a 2N6728
  9. Accuphase amps
  10. audio amplifier bandwidth
  11. Subwoofer amp problem - s8550 substitute?
  12. HK 330A channel imbalance
  13. kav 250a/2 or kav 2250?
  14. SA-W2500 Sub blowing fuse
  15. Op-Amp substitution?
  16. 1979 Amplifier kit
  17. QED A230 Scheme
  18. Technics SU8044
  19. Turn on pop on speaker even when using relay
  20. About Musical Fidelity X-A50
  21. Help with Arcam Delta 110 pre
  22. Uher VG 840 preamp , schm needed
  23. pignose conversion.
  24. Leak Delta 70 - No Sound/Buzzing
  25. STK402 muting speakers popping sound
  26. TA 1050 MK-x
  27. Relation between RC time constant of psu cap and slew rate
  28. Extreme slew rates like 200V/us or 300v/us no use in general but can it be achieved?
  29. Loop stability clarification . . .
  30. Yahama m60 amp
  31. adcom gfa555 or carver tfm35
  32. organ amp power on noise
  33. Krell KSA250 large channel imbalance
  34. HK 330A pre/driver adjustment
  35. Pure audio classic technique
  36. about to buy epcos Sikorel.. users of Sikorel pls post their opinions
  37. Hafler DH-220 issues
  38. High bandwith and dampening rate?
  39. Dr Thomas Power Amp Improvements
  40. Epcos Sikorel slew rate expectations and big Metalized Film Cap bypass
  41. CYRUS II SERIES 7 REPAIR
  42. Soundstream DA-1 repair
  43. Solid State Amplifier Builders Question from a new guy
  44. Nyquist stability
  45. Quiescent current way high on ESP P3a
  46. what about some help over here!!!
  47. CM Labs 914A
  48. Objective2 - one channel doesn't work
  49. Klipsch pro media 2.1 system - he no workee. man cries.
  50. LEDs in vintage receivers
  51. DIAMOND BUFFER PWR AMP WITH CFP PAIR
  52. Quad 303 - questions and thoughts
  53. Naim NAP140 vs GainClone LM3886
  54. PCB etching tank heating
  55. t-amp proline 3000
  56. Harman Kardon Signature 2.1
  57. Old Cresendo - What is it worth
  58. Hafler dh500 vs dynaco st400
  59. Yamaha CA 2010 meters behaviour
  60. Dome - a 16 Watt push-pull Class A amplifier
  61. My joyful projects
  62. Armstrong A17=621 repair
  63. class d amp in 73 ham radio magazine 1964
  64. Very simple power amp
  65. NiMH battery discharger
  66. Adcom GFA-555II donor or rebuild
  67. LTP to VAS interconnection.
  68. Marantz PM66 SE
  69. Some questions about the LM1036
  70. Sony AX380 and JX380 issues
  71. Marantz M9 clone in bridge
  72. Yamaha AX-730 Replacement Transformer
  73. elma attenuator 23 posiìtion 50 khom
  74. Modern Naim Nait 2 clone?
  75. amp emits low voume sound itself
  76. Just curious
  77. Rotel RA-971 MK2 problem
  78. what could be the reasons for High freq roll off after 14khz
  79. tash ma hall amp
  80. 2sc5200 1943 can be biased more in class A a/c SOA
  81. 2 toroids in monoblock?
  82. ESP P68 Subwoofer Amplifier - Need Help
  83. Problem Sansui AU505
  84. Help! Repairing a Pioneer SA-8100
  85. Marantz R1232L amp with Quad 57's?
  86. Krell KSA250 bias
  87. Matching transistors
  88. Military equipment: microphone eavesdropping - (DIY)
  89. qr amplifier - made in Italy
  90. help av400 R1
  91. CFP output stage adding more output transistors
  92. Spice model for KSE340 NPN?
  93. Confused about this step in the soldermasking process
  94. Noise pattern
  95. the G amp ....
  96. NAD 3020e fried R451 R437 resistor
  97. Best place to put relay?
  98. Someone experiance with ab int. precendent 1450?
  99. first amp project on the cheap
  100. I want to upgrade my Noble pot, what should I get
  101. Help with a power supply
  102. Power amp just buzzing! Need help with diagnosis.
  103. Trimming DC Offset on Nico's preamp
  104. 2SA1215 2SC2921, identify genuine and fake
  105. newbee need help
  106. M&K 250w Sub amp awaken issues
  107. If you like audio equipment . . .
  108. [HELP] Repair Arcam Alpha 2 - 240v
  109. Is it possible to build a 2 box pre-power for under £400
  110. Purpose of power supply filter caps on amps?
  111. cambrigde a500 amp and acoustic 3311 speareks
  112. nikko trm-750 humm/buzz problem
  113. NAD 7240PE Questions
  114. Hiraga 30Watt DC offset
  115. Regulated power supply for class A ?
  116. passive differential input stage
  117. Two Transistor push-pull AB amplifier
  118. Some PCB GND layout questions
  119. Clipping Behaviour
  120. Soundcraftsmen A200 Bad Channel
  121. JFET Matching/Sorting
  122. Weird Opamp Failure
  123. Carver M-1.5t Noisy and weak one channel
  124. Clean Those Balanced XLR’s!
  125. Class ab2 power amp good/ bad?
  126. Onkyo M-508
  127. Gloria in Excelsis (common base VAS)
  128. Studio 350 construction thread
  129. C-Audio RA501
  130. pros and cons of using 2sc5200 1943 Toshiba Transistors in Class A
  131. can a class D amp gives enough dynamic sound as a good class AB?
  132. Nikko Alpha 230 Will Not Turn On
  133. help with ampslab c200 DIY build
  134. Channel out - Repair Question
  135. Need help with my McIntosh MC250 please
  136. Asymmetric adjustment of the Holton amplifier to be symmetrical
  137. Help with Rotel stereo amp
  138. Power supply question Arcam Alpha 8
  139. My Best Clone
  140. Nad C372 & C272.
  141. nx-Amplifier: 100 W CFA topology Amp
  142. Nakamichi PA-1 AMP Time to replace main caps?
  143. JVC JR-S400 No power
  144. A501 / Z501 Luxkit Amplifier schematic
  145. Vertical Fet Output Stage
  146. Mordaunt Short MS308 amp repair
  147. which output devices does Plinius SA-103 uses?
  148. Can you heatsink a transistor without a exposed collector?
  149. Pros and cons of using DC servo input instead of input cap?
  150. Advise please
  151. I am in the $#!+
  152. How can you tell when you pushed a heatsink far enough?
  153. Schematic for Orion 225 HCCA
  154. Spectra-Sonics 701 another odd amplifier
  155. DIAMOND BUFFER WITH CFP PAIR
  156. need suggestions for an AB amp project
  157. Surge Current
  158. class h amp
  159. Musical Fidelity B1 question
  160. NAD transformer humming-buzzing/Nichicon KA series
  161. High quality classic equipment
  162. low THD and nofeedback amp
  163. Three Transistor push-pull amp
  164. Simple all N-channel MOSFET amp
  165. big film caps for decoupling?
  166. Help with caps - Please!
  167. Simple amp
  168. Naim 52 DIN output pinout
  169. how do I bench test my power amp?
  170. [Ask] Bridge amplier topology
  171. Breaking a Hafler DH-101 into Sections
  172. Primare A30.1 - The speaker protector cut off the speaker from the power amplifier
  173. Simple DIY Amp
  174. Mackie pro amps?
  175. Technics SU-V505
  176. Thermal Stability of Lateral FET Driven Bipolar Follower.
  177. Problem with Totem Pole Amp
  178. Anybody know this Amp
  179. Marantz PM-48 Amp; Protection Acting Up- Schematic?
  180. Cambridge Audio P35
  181. BHC Aerovox Slit Foils -VS.- Nichicon KG Gold Tune -VS.- Mundorf MLytic® Audio Grade
  182. a transformer as an amplifier
  183. build stereo amp in Altec 1590c chassis?
  184. Clarification on ClassA linearity
  185. Audio Decisions: Creating a GREAT PC gaming environment
  186. bridge amplifier
  187. Simplest poor man DC protection
  188. classe a 20w
  189. Using a Variac as main transformer in DIY amplifier
  190. Suggestion for TO-220 PNP BJTs?
  191. Clarion DPX11500 Repair Help
  192. parody amplifier
  193. Sansui AU-20000 DC on Speaker output no audio
  194. which driver to use to drive IRFP240 9240 pair?
  195. Twin Output Stage
  196. I just screwed up my Maverick D1 Pre Amp...
  197. yamaha m60 no input
  198. Epcos Sikorel or Nichicon KG or Elna Tonerex or Mundorf AG?
  199. Technics SA-510 Modifictions
  200. Use of ferrite beads for PS filtering ?
  201. Class AB with Regulated Power Supply...Class A-like?
  202. Sherwood S8900 Capacitor Troubles
  203. Nad 705 Receiver Pre Amp faulty?
  204. Active studio monitor amplifiers
  205. How Solid State Amps Work
  206. nec a1141
  207. Rod Elliott P3A with SANKEN 2SC2922/2SA1916
  208. Power amplifier with low thermal distortion
  209. Raamsa amplifiers
  210. Vietnamese DIY & Solid State Amplifiers
  211. Easy way to identify COUNTERFET TRANSISTORS!
  212. The Athena Amplifier
  213. Luxman A353 Schematic
  214. Adcom GFA-5800 DC offset off
  215. Recommend for power amp Outputs
  216. Inverting headphone buffer class A
  217. Marantz PM66SE transformer wanted
  218. Crown MA5002VZ
  219. Accuphase E202 problem
  220. preamp Forte Model 40 owners manual
  221. Car Audio Amplifier
  222. Need advice for Output Transistors
  223. AV Receiver --> Functions and Buttons
  224. vintage carver
  225. Quad 303S
  226. Amplifier Kit
  227. Arcam Alpha 8 with RF interference
  228. Need help selecting a zener on my Onkyo M504, Scematic attached
  229. What can i do with this?
  230. AKAI AM 2200 - fuse and speaker selection problems.
  231. Blockhead question on yamaha m60
  232. Upgrading From a Yamaha HTR 5940
  233. Strange hissing audible NOISE on amplifiers Right Channel output
  234. Preamp MC Intosh MA-6100 (DIY)
  235. Noise detection chip?
  236. NAD 319 Repair
  237. Question about "matched" power transistors
  238. Low power Crown XLS 602
  239. Sony TA-AX3, two problems
  240. help!!!
  241. Rod Elliott P03 variant with TTA1943/TTC5200
  242. 1.5kw power amplifier
  243. Help Required for Rotel RX-975 Receiver Repair
  244. Bryston 3B Output Transistors
  245. Inexpensive Class AB Power (purchased New)?
  246. Realistic STA2000 Repair - Speaker Power
  247. My aleph J mosfet amp build
  248. How the negative feedback really works and an alternative feedback question
  249. Transistor amplifier as good as electron tube
  250. Vintage amps to repair?

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