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  1. Long Tail Pair with Negative Feedback Problem
  2. 600 ohm to 150 T-Pad needed
  3. Organ amp conversion
  4. What could possibly be damaged by powering an amp with a bias cap lifted?
  5. Need help identifying C45 for a Fender Twin Reverb RI
  6. buzz in guitar amp. varies with volume. Anyone in Minnesota want to help?
  7. CRITIQUE MY 5F1 BUILD?
  8. Multiple driver enclosure calculations
  9. Single Ended 6L6GC Load
  10. Selmer TnB 50w SV problem with Bass Channel
  11. DIY RA-200 suggestions?
  12. Marshall 3315 Solid state attempted repair questions
  13. Scratchy rattling resonance
  14. RI deluxe reverb PS ripple
  15. Guitar Amplifier Hum Varies with Volume Knob
  16. Boss CE-1 (original Chorus Ensamble) Repair/Mod
  17. Peavey 112 Max Bass - request for schematic
  18. help with MIDI for pic16f1789 ???
  19. A simple piezo snare drum
  20. 5F1 BREADBOARD READY TO BUILD?
  21. Fender potentiometers nomenclature
  22. equipment penyata .
  23. add another output transformer
  24. 120W KT88 PPP bass amp progress + pics!
  25. CHAMP 5F1 BUILD VOL POT PROBLEM
  26. CHAMP 5F1 BUILD VOL POT PROBLEM
  27. Ampeg VT-22 dead OT?
  28. Please critique my first compressor design (for bass guitar)
  29. Marshall Valvestate 2000 not playing through speaker
  30. 12AU7 Cascode in tube amp?
  31. Sweet distortion
  32. Silvertone 1451 -Mystery adjustable cap
  33. 8 Ohm 2X12 Guitar Speaker cabinet - 2X4 Ohms in series or 2X16 Ohms in parallel?
  34. Guitar opamp Pre-amp input resistors
  35. Another avt150
  36. Princeton 112 Plus - Intermittent "Popping"
  37. Need Pinout Help, Silvertone Organ Amp
  38. Need Pinout Help, Silvertone Organ Amp
  39. Amp project for a newbie?
  40. Piezo Film Buffer and Amp Combo for Guitar Electronics
  41. Detuned Demystified
  42. layout: room between OT and EL34
  43. DC offset problem with TALMUS amplifier
  44. Vintage Amfiton-002 Hi-Fi amplifier for acoustic guitar
  45. help! Variable Frequency/Varible Q Boost/Cut tone circuit for tube bass amp.
  46. Ground loop hum and audio isolation trasformers
  47. TRANSFORMER TESTING RESULTS
  48. PI introducing funny problems.
  49. Hum from guitar amp
  50. MY FIRST 5F1 BREADBOARD CLONE - QUESTIONS
  51. I designed an amp- would anyone like to build it for me?
  52. sunn 200s diagnosis?
  53. High Gain Tube Preamp Hiss
  54. Introductions/18 Watt Clone
  55. Hot Cathode Follower Resistor
  56. Made Guitar preamp, suggestions on schematic
  57. Need help ID'ing my Champ PT
  58. lafayette pa 622 -> Guitar amp conversion
  59. Fishman SA220 Schematic needed...
  60. Marshall 2195 1970's lead and bass head
  61. Fender Frontman 212
  62. EL84 Tone Stack
  63. Can I use SMPS to power bass guitar amp instead of HUGE transformer?
  64. Behringer EP2500 Bridge mode not working
  65. Hammond PR-40 Conversion to guitar amp
  66. Gibson GA-8T tremolo fault
  67. Acoustic guitar 2-channel preamplifier schematic
  68. rauland 3075 info needed
  69. Bias Switch w/ Heater Elevation
  70. The Alesis SR16 warning
  71. Guitar Speaker Cab/ PA Mixer Amp
  72. Ukulele pickup system of piezo SBT & ECM mic
  73. Fishman Rare Earth Blend replica
  74. 6L6GC Tube Orientation
  75. do I need a cathode follower?
  76. Hammond 307A Audio Transformer
  77. Passive Guitar Output Splitter WITHOUT Transformer
  78. Reverb gain on Fender Princeton 112+
  79. More power out of bass combo
  80. what happens to voltage when I add a good choke
  81. Variable feedback vs. input attenuation
  82. choosing new output tubes for mongrel amp
  83. Harsh 12AT7 PI. Brand or model?
  84. Marshall 9004 Switches...
  85. pre war gibson eh125 schematic question
  86. Help wanted. A very strange error.
  87. Guitar Tube Preamp
  88. Fixing a Peavey Transtube Amp
  89. Issues with model T (ish) Clone
  90. Boss BD-2 No Suund
  91. Silvertone 1485 - Output Transformer advice
  92. Gretsch6151 preamp fun project - Goes silent when tremolo tube is put in
  93. champ hop-up vs. new Angela super-single-ended build
  94. Peavey Triumph 60
  95. Hey Everybody (DIY Acoustic Amplifier)
  96. EF86 with EL84 pushpull
  97. Valve amp rebuild help
  98. Behringer ep1500 Crackling
  99. OPT impedances
  100. Marshall Valvestate VS-100R
  101. crest fa2401 lose connection trace
  102. NOS FENDER TUBE AMP CHASSIS - VALUE OF?
  103. BJT/tube hybrid power amp with adjustable distortion
  104. Sag resistor
  105. MARSHALL AMP G100RCD
  106. Double amplification
  107. Blue label jensen stock in champs?
  108. questions on Svetlana/Tube Town EF86 mic stage
  109. Tremolo Circuit Design Beating
  110. old penncrest stereo amp to basic tube amp
  111. gibson L6s guitar tone control inductor
  112. Request for guitar amplifier circuit
  113. carlsbro cobra 90 twin gone wrong
  114. Marshall Plexi Clone
  115. How to add volume to TDA8541 circuit?
  116. looking for Guitar amp
  117. Guitar piezo preamp
  118. effects powersupply
  119. Introduction and survey for gear junkies!
  120. Technical help with screen grid voltages
  121. tube amp no sound only buzz
  122. Critique my preamp design
  123. How is an acoustic amp different from a regular amp?
  124. el34 output transformer, 3 or 5 wire ~?
  125. Designing a Tube Line Driver / Pre-amp
  126. KT88 Tube Guitar Power Amp
  127. Guitar preamp with EQ and blend
  128. Building drum machine modules
  129. AB International 400 Power Amplifier Repair
  130. **** me, I bought the wrong box.
  131. Fender Frontman 212R - Extremely Loud Popping Noises..
  132. AC30 problem
  133. Crate Palomino V8 potentiometer replacement
  134. Damn, what chord is that?
  135. 20Segi tube amp
  136. Pedalboard Mounted Power Amp
  137. Homemade Leslie cabinet
  138. Tube ID needed
  139. Simple shematics for line level distorsion
  140. Fender pro reverb AA1069 nasty noise on normal channel
  141. Bias voltage problem
  142. Need help starting keyboard mod project
  143. Bright Cap, Yes or No or Maybe
  144. Gibson L6S guitar wiring
  145. Hex sustainer thingy
  146. Marshall B65 Schematic
  147. Golden Age Pre 73
  148. Piezo sensor - mounting woes
  149. Looking for high-fi condenser capsule
  150. I bought a box of old valves, some new in box and I want to build some projects
  151. 6550s
  152. Marshall VS 8080 IC1 Blowing.
  153. strange preamp
  154. Marshall 1960 Celestion G12t-75 ohm?
  155. 72 Twin reverb
  156. 6v6 Pushpull question
  157. Single-ended 6v6 diy; over-conducting
  158. Advice for first DIY project (MIDI sample playing instrument)
  159. Bass pre-amp DI output
  160. Fender Tweed Champ Kits/Parts
  161. O/P Transformer DC Resistance Check
  162. HI-FI amplifier for bass guitar
  163. HELP With VOX AC100CPH
  164. preamp for guitar
  165. Amp enclosure help
  166. Stuck on Circuit Guitar Preamp LED mirror
  167. Digning intro old organ
  168. SONIC MA-1 Tino Zottola
  169. Compressor design
  170. Possible intermittent Micalex tube socket?
  171. Mic as filter
  172. Fender rhodes peterson vibrato preamp
  173. Biasing for single supply to op amp
  174. Hammond Converion amps
  175. SAP 15
  176. The Right Tube For The Job
  177. Fishman Loudbox
  178. My bass amp is too loud!
  179. DIY AMI DD. Need some advice.
  180. Amplification breaks up after some time
  181. Polytone 215-700 Custom Bass Amp SCHEMATIC NEEDED please
  182. calculating signal current for power dissipation
  183. Getting a little help building an audio amplifier
  184. Screen Taps on Sunn Model T
  185. Mesa Boogie MkII
  186. Amp for electric violin / cello.
  187. Valve amp - placement of dual chokes
  188. voltage to sound
  189. stupidly simple LED dimming from DC heater supply?
  190. running a preamp tube in class B!
  191. Echo Amb Bias Confusion
  192. Capacitor ID
  193. Modified Alembic F2-B
  194. Tonemaster 214 Clone harsh increasing buzzing sound- no signal
  195. Hammond Type G Amp
  196. Improving a Marshall MG30DFX
  197. 6J51P mic amp - comments
  198. Attenuation pedal
  199. Acousto-electro guitar amp - speakers impedance
  200. What all is included in the DC load current a transformer sees?
  201. DIY 25v power supply
  202. Ampeg SVT CL fault
  203. First test of my AX84 HI-octane
  204. DIY Trace Elliot V8 w/ 8 KT120
  205. RCA Loudspeaker 106 and what is it?
  206. adding series resistance to transformer primary
  207. Guitar Preamplifier with ECC85.
  208. Wiring guitars: which features are important
  209. single-coil / humbucker hybrid wiring
  210. SE 6550 Guitar amp
  211. Humbucker question
  212. Bias vary tremelo help needed
  213. suzuki omnichord om-27 issue
  214. Fender reverb circuit diagnostics/repair
  215. Multiple Amp Stacks for live event
  216. Elgen Bass amp fault diagnosis
  217. Ibanez TB100h information?
  218. Fortin NATAS tubes?
  219. Tube Arcing?
  220. signal processing question
  221. Garnet stencil (Granada) with no AC isolation transformer
  222. Fender BXR 60 bass amp buzz (preamp section)
  223. LM3886 By General Guitar Gadget
  224. 100w Guitar Amp based on 2SC3280 (2SC5200)
  225. Hybrid "Marshall" Amp
  226. Mojo fix
  227. tube interstage impedance bridging for frequency response shaping
  228. Check This out!
  229. 120W PPP ULL Bass amp, first desgin, please shoot
  230. 6v6 fixed bias
  231. Bass amp; everybodies favorite 4x K88 driver tube
  232. Overdriving one channel with another
  233. VERY LOUD cracks/pops but no sound !?
  234. larger AC motors and shielding issues? Animated cabinet
  235. Mesa Boogie Road King - strange fault - help?
  236. KT120 Bass Amp
  237. Peavey puzzle?
  238. rectifier tube recommendation for champ clone
  239. effects send and/or preamp out jack on guitar amps
  240. Modding a cheap practice amp (aka polishing turds)
  241. Guitar ABY advice
  242. Distortion mod issue (help pls)
  243. Favorite Coupling caps in Preamp?
  244. Suzuki Omnichord
  245. Boss Super Shifter Help
  246. BASS AMP: KT88 PP (or PPP) 6SN7 CF vs CC driver
  247. Ashdown Electric BLue 180 crossover distortion
  248. I have no idea where to even start
  249. Peavey op-amp sub
  250. Crate GX1600 blowing fuses (and general SS help)

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