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  1. Class AB amp trouble shooting (Scope shows square not sine)
  2. *small* Bass guitar amplifier
  3. 1950 Gretsch Electromatic Artist
  4. huge voltage drop after diode rectifier
  5. Questions on open baffles speaker.
  6. Crown DC-300A
  7. Bassman AA-864 Preamp Question
  8. Blackstar combo 20 that squeals
  9. 6V6/6L6 Switchable Guitar Amp
  10. input impedance of output transformer gibson ga20rvt amp
  11. career change for Jensen TR10 spkr
  12. gibson ga15rvt and ga20rvt amps
  13. why does 1 amp run hotter than another
  14. Guitar tube Pre-amp
  15. Power supply and transformer - good pair? (Hexaphonic guitar box)
  16. Mosfet driver
  17. Mullard 5-10 for guitar ?
  18. Rotary Speaker Cabinet Project
  19. General bass amp questionnaire
  20. Looking for someone to build an acoustic guitar preamp for me
  21. any tank circuit calculator?
  22. wires on an old humbucker
  23. LEM Baby Tape Echo PSU
  24. dual-tube SE
  25. 4-ohm 212 L-Pad
  26. Replacing Power Amp in Fender FM212R
  27. built a Sunn 2000S copy
  28. Heathkit A7 amp tube lineup
  29. Bass guitar wiring
  30. hybrid amp question
  31. New Bass Rig
  32. capacitor question
  33. ampeg ss70c 2x10 guitar amp
  34. Super Reverb AA270 reverb weak
  35. Uber Newb needs ideas for Cheap Bass Amp
  36. Fender PA100 - smoke -> no sound
  37. Dynacord Eminent II Biasing and tube change
  38. Hypex UcD2kOEM Bass Power Amp Project
  39. XLR Mixer Output to 1/4" Mono Amp Input
  40. Modify Bell 3030 into a stereo guitar amp project
  41. 'distortion' knob in schematic
  42. Easy HPF for bass cab?
  43. Ampex 620 For Use As Guitar Amp
  44. Amplifiers that exceed grid leak resistance
  45. Trace-Elliot Bipolar Bear
  46. Peavey PA-100 repair question
  47. Digital volume control for instrument level signal
  48. Question about Green Ringer ring modulator
  49. Home theatre subwoofer amp project
  50. Hammond M all ocal amp
  51. Discrete Compressor pedal design
  52. Need replacement speaker advice for 4X12
  53. I fried the mp3 input of my Roland Cube 40 xl
  54. Roy Blankenship at work
  55. The Mighty MKS-20 - What I've learned
  56. Crate GX 130c
  57. A Preamp doesn't work well!! (distortion)
  58. Draining a can cap
  59. Ampalanche
  60. Ace Tone Elite
  61. Power-booster power amp section for champ
  62. Need Ideas of what to do with 50+ tip36 PNP transistors
  63. '65 bassman ab165 hiss
  64. Silvertone Organ amp conversion
  65. Mesa Subway Rocket burned up! Help!
  66. Palmer Drei (Parallel SE w/mismatched output tubes)
  67. Fuzz Face circuit with unusual Ge PNP transistors
  68. recycling old tech to make an amp
  69. Low voltage Marshall inspired amp for voltage challenged individuals.
  70. upgrading a cheap guitar amp
  71. First test of rebuilt bass guitar amp
  72. first build is ready for testing. need to confirm the first reading though.
  73. Guitar Level to Line Level Hi-Quality Preamp
  74. What's wrong with this chassis layout?
  75. National guitar amp (?) "Sportsman" help needed
  76. switch rating question
  77. Experience modifying Boss pedals?
  78. Building a serious bass cabinet
  79. Gut Shot of Gibson GA-5 Skylark
  80. OK champ-mod?
  81. Looking for a power transformer Hartke HA 4000
  82. DIY UniVibe
  83. simplest possible push pull 6v6 cathode bias guitar amp?
  84. op amp output ceiling ???
  85. Fs Ibanez Renometer
  86. novice tube amp (re)build
  87. Farfisa Combo - Reverb Replacement
  88. digipots in audio ccts
  89. Good 300-400w amp kit for a beginner?
  90. Tl806 - EMV12L vs Eminence DeltaProA
  91. Modular Synthesizer with Tubes
  92. Vox AC15TB power transformer
  93. opamp driver for reverb tank, single supply
  94. pencil tube mini amp?
  95. Swapping OP amps
  96. Oh NO!! Its French!!!
  97. Peavy Triumph 60 Clean Channel
  98. self-split dual triode output impedance?
  99. Easy Tube distortion for beginner. (v1 6418 tubes?)
  100. Princeton clone hums - analyze my build?
  101. For accordion players: MIDI accompaniment
  102. i have a few questions about 5f1 champ project.
  103. Guitar amplifier LTSpice simulation
  104. help identify unknown Output transformer leads?
  105. Bass guitar preamp using op-amps
  106. So your 5E3 is still too loud huh?
  107. Seeking troubleshooting advice for my first amp build.
  108. I need help with this preamp!!!
  109. BEHRINGER FCB1010 MOD QUESTION
  110. 2 seperate (switchable) power stages in same amp?
  111. electric guitar/mandolin preamp and effects
  112. Different approach to Harmonic Balancer question
  113. Andy Ross music "the Pro-Verb" schematics needed
  114. Harmonic Generator / guitar amp
  115. First post from a tube noob: Found 9 tubes!
  116. Valve spacing 6 x 6550
  117. plate starvation VS output tube overdrive.
  118. Best placement for a choke, VHT tube amp.
  119. Building an electret microphone Acoustic Guitar pick up. Want to ask something.
  120. Could use a second opinion.
  121. Buffering a Cathodyne Phase Splitter with Mosfets
  122. Zobel network, tone shaping, modify it !
  123. Reverb Tank for Peavey 30?
  124. Burns Orbit Three
  125. Lo budget, good sound
  126. mismatched loads on Split load PI
  127. AVT150H Issue
  128. Op-Amp Output to High-Impedance Load?
  129. Guitar Question - Pickup Crackle
  130. Found some Sunn Transformers for 2xKT88!
  131. Is my speaker ok to use with my tube amp??
  132. Help preamp 3band
  133. Behringer V-Ampire LX210/LX1200. Schematic
  134. Tube amp problem
  135. controlling effects pedals using VACTROLS
  136. How much gain does a bass preamp need?
  137. Pentode gain control in preamp
  138. proper speaker in 59 fender princeton
  139. bogen chb 100
  140. Peavy 130 Watt guitar amplifier Question
  141. Hybrid Bass Amp
  142. preamp for mfb speakers
  143. No Voltage drop across plate load resistor
  144. Guitar electronics question
  145. Steel pan acoustic feedback
  146. Help with reverb driver circuit
  147. A mad man's approach to attenuation
  148. Guitar Pedal Design EE Senior Project
  149. SWR 240W Redhead - need schematic - blowing fuses!
  150. Save an amp from a punk band! - Troubleshoot el34 12ax7 guitar amp
  151. Attempting repair on a Korg ax5G.
  152. Gallien Krueger 800RB Hi Channel Problem
  153. Home Theater subwoofer as bass amp?
  154. Mounting valve / tube sockets directly to turretboard
  155. Specific Filter Cap Replacement - Guild Bass Amp
  156. New to Tube Amps/ Issues with Tube Amps
  157. HH Bassmachine schematic wanted
  158. Ampeg B15N 1962 vs 1968
  159. Constant hum
  160. Hot Rod Deville filter capacitors
  161. Wurlitzer 200a Hum question
  162. Toroidal transformer Q
  163. Guitar Amp Project
  164. Crate Blue Voodoo 120 Bad Pots - Can they be replaced???
  165. Peavy VB-3
  166. Fender 5E4 voltage
  167. Huntington GA 10 Input connector
  168. Ampeg SVT 3 pro- raise from the dead project
  169. Roland Mobile AC line out modification
  170. Turning old tube stuff into guitar amps
  171. 4x6GV8 proposed build
  172. trace acoustic ta100r repair help
  173. Guitar preamp, lowering output voltage
  174. New Project: BIG bass amp 4x6l6!
  175. Yamaha GA-15 Guitar Amp
  176. Opionions on analog switches vs vacrols
  177. Powered Speaker - Lo-Z Balanced Input?
  178. 5E3 Tweed Deluxe distorting problem
  179. Tube Bass Preamp
  180. Help With Harsh Distortion
  181. My handwired guitar amplifier
  182. Carr Rambler
  183. Generalmusic sk880 keyboard scematic
  184. SS Tremelo for my tube intercom guitar amp
  185. Fuse type and fuse holder?
  186. Power Scaling
  187. Lots of craziness (weird noises and osc) happening in point to point 5W EL84 Amp
  188. Trying to build this preamp
  189. Hiss noise from Fender Frontman 15G, solution
  190. Bias a triode cathode negative for more gain?
  191. D.I.Y. 100 Dollar Guitar Amp ! 6V6/6L6 PP !
  192. Skytec TEC 6950 Help
  193. Switchable class
  194. Thoughts on adding preamp to bridged NAD 3140 for bass guitar
  195. A technical triode preamp question
  196. wampler faux tape echo pedal modifications
  197. KMD GV100D Low distorted output
  198. Output transformer for express build
  199. will 6x9 speaker work with guitar amp head...
  200. Vox AC4tv - 1/4 W Circuit Clone?
  201. Building an analog circuit to replace the SS circuit in Marshall MG15dfx
  202. Thoughts about a 6111-tube guitar/harp-mike direct box
  203. EL 34 / 6L6 SE Guitar Amp Project
  204. Modded Crate VC508 - Heavy 60Hz buzz
  205. 3 oscillator drone machine noise maker
  206. Tape Echo Restoration: My first project, many questions!
  207. Old Intercom guitar amp project
  208. Peavey Windsor Presence & Resonance problem
  209. Tiny terror clon Problem
  210. Amp Bias help ? Rebuild & Tube Change !
  211. Balanced/unbalanced line receiver
  212. ok time to build another one
  213. advice on building a redbox type di
  214. LF: guitar preamp suggestions for use with soundcard
  215. Ye auld bassman (another week well spent)
  216. cathode follower current draw
  217. Cathode Follower - when is it needed?
  218. Deluxe Reverb and a 6K6
  219. FIRST AMP BUILD REVISIT
  220. Diy combo guitar amp build log
  221. BV6212 mod help
  222. RC bright boost circuit math
  223. PUTTING A TREMELO IN MY DELUXE/PRINCETON
  224. London Power sustain kit
  225. Diode Clippers - How do they work?
  226. 75 Watt Vintage Bell Amplifier - pre amp ?
  227. My old Sound City 120 project
  228. Power amp without preamp stage for bass
  229. TUBE HEATER WIRING OPTIONS
  230. Burned up "choke" resistor in old Fender Super Reverb
  231. Help with Standel 25L15 Preamp Circuit
  232. PLEASE HELP ! Hum and Squeal with tube amp kit.
  233. Fender "The Twin" - no output
  234. MASCO INTERCOM - GUITAR AMP PROJECT?
  235. Hot Glue film caps to another component (Orange Roland Cube 60)
  236. Guitar amp kits
  237. Why does a different OT soound so different?
  238. Creating a Speaker Out from Line Out?
  239. Anyone ever shaved a resistor?
  240. What Foam Should I Use ?
  241. Entirely DIY Guitar Amp Build Log
  242. Tube Amps and Ambient Temperature and Humidity
  243. Noise Fender Tweed Deluxe Clone
  244. Hum issue tube bass preamp
  245. Valve preamp for bass guitar
  246. Early Fender Non-Opto Vibrato/Tremelo Circuit
  247. MG100 HDFX no power HELP!!
  248. Marshall 9100 220V to 110V conversion
  249. Guitar Case
  250. Egnator Vengeance volume problems

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