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  1. CHAMP 5F1 BUILD VOL POT PROBLEM
  2. Ampeg VT-22 dead OT?
  3. Please critique my first compressor design (for bass guitar)
  4. Marshall Valvestate 2000 not playing through speaker
  5. 12AU7 Cascode in tube amp?
  6. Sweet distortion
  7. Silvertone 1451 -Mystery adjustable cap
  8. 8 Ohm 2X12 Guitar Speaker cabinet - 2X4 Ohms in series or 2X16 Ohms in parallel?
  9. Guitar opamp Pre-amp input resistors
  10. Another avt150
  11. Princeton 112 Plus - Intermittent "Popping"
  12. Need Pinout Help, Silvertone Organ Amp
  13. Need Pinout Help, Silvertone Organ Amp
  14. Amp project for a newbie?
  15. Piezo Film Buffer and Amp Combo for Guitar Electronics
  16. Detuned Demystified
  17. layout: room between OT and EL34
  18. DC offset problem with TALMUS amplifier
  19. Vintage Amfiton-002 Hi-Fi amplifier for acoustic guitar
  20. help! Variable Frequency/Varible Q Boost/Cut tone circuit for tube bass amp.
  21. Ground loop hum and audio isolation trasformers
  22. TRANSFORMER TESTING RESULTS
  23. PI introducing funny problems.
  24. Hum from guitar amp
  25. MY FIRST 5F1 BREADBOARD CLONE - QUESTIONS
  26. I designed an amp- would anyone like to build it for me?
  27. sunn 200s diagnosis?
  28. High Gain Tube Preamp Hiss
  29. Introductions/18 Watt Clone
  30. Hot Cathode Follower Resistor
  31. Made Guitar preamp, suggestions on schematic
  32. Need help ID'ing my Champ PT
  33. lafayette pa 622 -> Guitar amp conversion
  34. Fishman SA220 Schematic needed...
  35. Marshall 2195 1970's lead and bass head
  36. Fender Frontman 212
  37. EL84 Tone Stack
  38. Can I use SMPS to power bass guitar amp instead of HUGE transformer?
  39. Behringer EP2500 Bridge mode not working
  40. Hammond PR-40 Conversion to guitar amp
  41. Gibson GA-8T tremolo fault
  42. Acoustic guitar 2-channel preamplifier schematic
  43. rauland 3075 info needed
  44. Bias Switch w/ Heater Elevation
  45. The Alesis SR16 warning
  46. Guitar Speaker Cab/ PA Mixer Amp
  47. Ukulele pickup system of piezo SBT & ECM mic
  48. Fishman Rare Earth Blend replica
  49. 6L6GC Tube Orientation
  50. do I need a cathode follower?
  51. Hammond 307A Audio Transformer
  52. Passive Guitar Output Splitter WITHOUT Transformer
  53. Reverb gain on Fender Princeton 112+
  54. More power out of bass combo
  55. what happens to voltage when I add a good choke
  56. Variable feedback vs. input attenuation
  57. choosing new output tubes for mongrel amp
  58. Harsh 12AT7 PI. Brand or model?
  59. Marshall 9004 Switches...
  60. pre war gibson eh125 schematic question
  61. Help wanted. A very strange error.
  62. Guitar Tube Preamp
  63. Fixing a Peavey Transtube Amp
  64. Issues with model T (ish) Clone
  65. Boss BD-2 No Suund
  66. Silvertone 1485 - Output Transformer advice
  67. Gretsch6151 preamp fun project - Goes silent when tremolo tube is put in
  68. champ hop-up vs. new Angela super-single-ended build
  69. Peavey Triumph 60
  70. Hey Everybody (DIY Acoustic Amplifier)
  71. EF86 with EL84 pushpull
  72. Valve amp rebuild help
  73. Behringer ep1500 Crackling
  74. OPT impedances
  75. Marshall Valvestate VS-100R
  76. crest fa2401 lose connection trace
  77. NOS FENDER TUBE AMP CHASSIS - VALUE OF?
  78. BJT/tube hybrid power amp with adjustable distortion
  79. Sag resistor
  80. MARSHALL AMP G100RCD
  81. Double amplification
  82. Blue label jensen stock in champs?
  83. questions on Svetlana/Tube Town EF86 mic stage
  84. Tremolo Circuit Design Beating
  85. old penncrest stereo amp to basic tube amp
  86. gibson L6s guitar tone control inductor
  87. Request for guitar amplifier circuit
  88. carlsbro cobra 90 twin gone wrong
  89. Marshall Plexi Clone
  90. How to add volume to TDA8541 circuit?
  91. looking for Guitar amp
  92. Guitar piezo preamp
  93. effects powersupply
  94. Introduction and survey for gear junkies!
  95. Technical help with screen grid voltages
  96. tube amp no sound only buzz
  97. Critique my preamp design
  98. How is an acoustic amp different from a regular amp?
  99. el34 output transformer, 3 or 5 wire ~?
  100. Designing a Tube Line Driver / Pre-amp
  101. KT88 Tube Guitar Power Amp
  102. Guitar preamp with EQ and blend
  103. Building drum machine modules
  104. AB International 400 Power Amplifier Repair
  105. **** me, I bought the wrong box.
  106. Fender Frontman 212R - Extremely Loud Popping Noises..
  107. AC30 problem
  108. Crate Palomino V8 potentiometer replacement
  109. Damn, what chord is that?
  110. 20Segi tube amp
  111. Pedalboard Mounted Power Amp
  112. Homemade Leslie cabinet
  113. Tube ID needed
  114. Simple shematics for line level distorsion
  115. Fender pro reverb AA1069 nasty noise on normal channel
  116. Bias voltage problem
  117. Need help starting keyboard mod project
  118. Bright Cap, Yes or No or Maybe
  119. Gibson L6S guitar wiring
  120. Hex sustainer thingy
  121. Marshall B65 Schematic
  122. Golden Age Pre 73
  123. Piezo sensor - mounting woes
  124. Looking for high-fi condenser capsule
  125. I bought a box of old valves, some new in box and I want to build some projects
  126. 6550s
  127. Marshall VS 8080 IC1 Blowing.
  128. strange preamp
  129. Marshall 1960 Celestion G12t-75 ohm?
  130. 72 Twin reverb
  131. 6v6 Pushpull question
  132. Single-ended 6v6 diy; over-conducting
  133. Advice for first DIY project (MIDI sample playing instrument)
  134. Bass pre-amp DI output
  135. Fender Tweed Champ Kits/Parts
  136. O/P Transformer DC Resistance Check
  137. HI-FI amplifier for bass guitar
  138. HELP With VOX AC100CPH
  139. preamp for guitar
  140. Amp enclosure help
  141. Stuck on Circuit Guitar Preamp LED mirror
  142. Digning intro old organ
  143. SONIC MA-1 Tino Zottola
  144. Compressor design
  145. Possible intermittent Micalex tube socket?
  146. Mic as filter
  147. Fender rhodes peterson vibrato preamp
  148. Biasing for single supply to op amp
  149. Hammond Converion amps
  150. SAP 15
  151. The Right Tube For The Job
  152. Fishman Loudbox
  153. My bass amp is too loud!
  154. DIY AMI DD. Need some advice.
  155. Amplification breaks up after some time
  156. Polytone 215-700 Custom Bass Amp SCHEMATIC NEEDED please
  157. calculating signal current for power dissipation
  158. Getting a little help building an audio amplifier
  159. Screen Taps on Sunn Model T
  160. Mesa Boogie MkII
  161. Amp for electric violin / cello.
  162. Valve amp - placement of dual chokes
  163. voltage to sound
  164. stupidly simple LED dimming from DC heater supply?
  165. running a preamp tube in class B!
  166. Echo Amb Bias Confusion
  167. Capacitor ID
  168. Modified Alembic F2-B
  169. Tonemaster 214 Clone harsh increasing buzzing sound- no signal
  170. Hammond Type G Amp
  171. Improving a Marshall MG30DFX
  172. 6J51P mic amp - comments
  173. Attenuation pedal
  174. Acousto-electro guitar amp - speakers impedance
  175. What all is included in the DC load current a transformer sees?
  176. DIY 25v power supply
  177. Ampeg SVT CL fault
  178. First test of my AX84 HI-octane
  179. DIY Trace Elliot V8 w/ 8 KT120
  180. RCA Loudspeaker 106 and what is it?
  181. adding series resistance to transformer primary
  182. Guitar Preamplifier with ECC85.
  183. Wiring guitars: which features are important
  184. single-coil / humbucker hybrid wiring
  185. SE 6550 Guitar amp
  186. Humbucker question
  187. Bias vary tremelo help needed
  188. suzuki omnichord om-27 issue
  189. Fender reverb circuit diagnostics/repair
  190. Multiple Amp Stacks for live event
  191. Elgen Bass amp fault diagnosis
  192. Ibanez TB100h information?
  193. Fortin NATAS tubes?
  194. Tube Arcing?
  195. signal processing question
  196. Garnet stencil (Granada) with no AC isolation transformer
  197. Fender BXR 60 bass amp buzz (preamp section)
  198. LM3886 By General Guitar Gadget
  199. 100w Guitar Amp based on 2SC3280 (2SC5200)
  200. Hybrid "Marshall" Amp
  201. Mojo fix
  202. Hammond A0-29 project organ amp
  203. tube interstage impedance bridging for frequency response shaping
  204. Check This out!
  205. 120W PPP ULL Bass amp, first desgin, please shoot
  206. 6v6 fixed bias
  207. Bass amp; everybodies favorite 4x K88 driver tube
  208. Overdriving one channel with another
  209. VERY LOUD cracks/pops but no sound !?
  210. larger AC motors and shielding issues? Animated cabinet
  211. Mesa Boogie Road King - strange fault - help?
  212. KT120 Bass Amp
  213. Peavey puzzle?
  214. rectifier tube recommendation for champ clone
  215. effects send and/or preamp out jack on guitar amps
  216. Modding a cheap practice amp (aka polishing turds)
  217. Guitar ABY advice
  218. Distortion mod issue (help pls)
  219. Favorite Coupling caps in Preamp?
  220. Suzuki Omnichord
  221. Boss Super Shifter Help
  222. BASS AMP: KT88 PP (or PPP) 6SN7 CF vs CC driver
  223. Ashdown Electric BLue 180 crossover distortion
  224. I have no idea where to even start
  225. Peavey op-amp sub
  226. Crate GX1600 blowing fuses (and general SS help)
  227. boost idea
  228. on/off switch pop when turned off
  229. Sony stereophonic amp (60's tube)
  230. Transformer from Marshall 3530
  231. baldwin model 45 c-2 amp
  232. Single tube guitar amp, adding a transformer to a formerly transformer-less design
  233. More Peavey Classic amps
  234. Echoplex restoration
  235. Background noise on guitar amp TD35
  236. SVT project
  237. Gibson amp project
  238. Fender Hot Rod Deluxe - Cracking noise when adjusting nobs
  239. Help with old Peavey amp
  240. ISO Traynor YBA2 schematic, 5Y3 rectifier
  241. high gain vacuum tubes
  242. Bell tube PA amp giving really low output.
  243. 12at7 transformed amp
  244. Need help fixing Marshall 8008 power amp blowing output transformers
  245. Low wattage power amp for preamp.
  246. my first valve amp build,
  247. 45hz bass boost on amp sounds gummed up?
  248. Fender Champ 5f1 clone squeal
  249. need help in guitar amp modification!!!!
  250. what range speaker used 2x 18watt or 2x 10 watt on 18 watts amp

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