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  1. 6gk5/6fq5 as input/preamp stage tube ?
  2. Isolation transformer question
  3. Couple Questions - Grid Stoppers and High Cut
  4. thoughts on heater wiring orientation
  5. Testing The Tube Guitar Amplifier
  6. JTM45 Bias Voltage moving around & bad distortion
  7. Connect plate after choke?
  8. blackstar stage 60 diy
  9. Question 'bout valve stompboxes
  10. 1965 Fender Deluxe Reverb - DI Connection?
  11. Buffer stage after Alembic F2b design
  12. Odd noises; guitar, environment, or amp?
  13. Fender reverb stand-alone
  14. master volume addition - Webster Chicago W830
  15. noiseless diodes setup choice
  16. Help choose a guitar amp to build?
  17. Weirdness with virtual CT on 6V heater tap
  18. Marshall 1974X
  19. Preamp Output Transformer
  20. Traynor YCL-3 Mark III Rebuild
  21. Sunn Sceptre Style Build
  22. Pepco (Pine Electronics) 801 Chassis Isolation Mod
  23. Fender Bassman AA864 build
  24. Gulbransen Organ Resurrection -
  25. Strange voltage reading
  26. Marshall 18W TA
  27. 2002 Fender Twin Amp **Unusual Problem**
  28. Princeton 112+ Loose PCB Pot Shaft
  29. Greenchild Trbus Drive
  30. Can someone help me proof this layout?
  31. Laney Ironheart Irt30-112
  32. Hot Rod Deluxe issue, need advise!
  33. Guitar amp and bass amp
  34. Amp Build Not Working Correctly....
  35. Tuning a ported guitar cab
  36. Who made these early Peavey 6L6GC
  37. Inc / Dec Stomp Box
  38. Alnico magnet heat?
  39. Class AB amp trouble shooting (Scope shows square not sine)
  40. *small* Bass guitar amplifier
  41. 1950 Gretsch Electromatic Artist
  42. huge voltage drop after diode rectifier
  43. Questions on open baffles speaker.
  44. Crown DC-300A
  45. Bassman AA-864 Preamp Question
  46. Blackstar combo 20 that squeals
  47. 6V6/6L6 Switchable Guitar Amp
  48. input impedance of output transformer gibson ga20rvt amp
  49. career change for Jensen TR10 spkr
  50. gibson ga15rvt and ga20rvt amps
  51. why does 1 amp run hotter than another
  52. Guitar tube Pre-amp
  53. Power supply and transformer - good pair? (Hexaphonic guitar box)
  54. Mosfet driver
  55. Mullard 5-10 for guitar ?
  56. Rotary Speaker Cabinet Project
  57. General bass amp questionnaire
  58. Looking for someone to build an acoustic guitar preamp for me
  59. any tank circuit calculator?
  60. wires on an old humbucker
  61. LEM Baby Tape Echo PSU
  62. dual-tube SE
  63. 4-ohm 212 L-Pad
  64. Replacing Power Amp in Fender FM212R
  65. built a Sunn 2000S copy
  66. Heathkit A7 amp tube lineup
  67. Bass guitar wiring
  68. hybrid amp question
  69. New Bass Rig
  70. capacitor question
  71. ampeg ss70c 2x10 guitar amp
  72. Super Reverb AA270 reverb weak
  73. Uber Newb needs ideas for Cheap Bass Amp
  74. Fender PA100 - smoke -> no sound
  75. Dynacord Eminent II Biasing and tube change
  76. Hypex UcD2kOEM Bass Power Amp Project
  77. XLR Mixer Output to 1/4" Mono Amp Input
  78. Modify Bell 3030 into a stereo guitar amp project
  79. 'distortion' knob in schematic
  80. Easy HPF for bass cab?
  81. Ampex 620 For Use As Guitar Amp
  82. Amplifiers that exceed grid leak resistance
  83. Trace-Elliot Bipolar Bear
  84. Peavey PA-100 repair question
  85. Digital volume control for instrument level signal
  86. Question about Green Ringer ring modulator
  87. Home theatre subwoofer amp project
  88. Hammond M all ocal amp
  89. Discrete Compressor pedal design
  90. Need replacement speaker advice for 4X12
  91. I fried the mp3 input of my Roland Cube 40 xl
  92. Roy Blankenship at work
  93. The Mighty MKS-20 - What I've learned
  94. Crate GX 130c
  95. A Preamp doesn't work well!! (distortion)
  96. Draining a can cap
  97. Ampalanche
  98. Ace Tone Elite
  99. Power-booster power amp section for champ
  100. Need Ideas of what to do with 50+ tip36 PNP transistors
  101. '65 bassman ab165 hiss
  102. Silvertone Organ amp conversion
  103. Mesa Subway Rocket burned up! Help!
  104. Palmer Drei (Parallel SE w/mismatched output tubes)
  105. Fuzz Face circuit with unusual Ge PNP transistors
  106. recycling old tech to make an amp
  107. Low voltage Marshall inspired amp for voltage challenged individuals.
  108. upgrading a cheap guitar amp
  109. First test of rebuilt bass guitar amp
  110. first build is ready for testing. need to confirm the first reading though.
  111. Guitar Level to Line Level Hi-Quality Preamp
  112. What's wrong with this chassis layout?
  113. National guitar amp (?) "Sportsman" help needed
  114. switch rating question
  115. Experience modifying Boss pedals?
  116. Building a serious bass cabinet
  117. Gut Shot of Gibson GA-5 Skylark
  118. OK champ-mod?
  119. Looking for a power transformer Hartke HA 4000
  120. DIY UniVibe
  121. simplest possible push pull 6v6 cathode bias guitar amp?
  122. op amp output ceiling ???
  123. Fs Ibanez Renometer
  124. novice tube amp (re)build
  125. Farfisa Combo - Reverb Replacement
  126. digipots in audio ccts
  127. Good 300-400w amp kit for a beginner?
  128. Tl806 - EMV12L vs Eminence DeltaProA
  129. Modular Synthesizer with Tubes
  130. Vox AC15TB power transformer
  131. opamp driver for reverb tank, single supply
  132. pencil tube mini amp?
  133. Swapping OP amps
  134. Oh NO!! Its French!!!
  135. Peavy Triumph 60 Clean Channel
  136. self-split dual triode output impedance?
  137. Easy Tube distortion for beginner. (v1 6418 tubes?)
  138. Princeton clone hums - analyze my build?
  139. For accordion players: MIDI accompaniment
  140. i have a few questions about 5f1 champ project.
  141. Guitar amplifier LTSpice simulation
  142. help identify unknown Output transformer leads?
  143. Bass guitar preamp using op-amps
  144. So your 5E3 is still too loud huh?
  145. Seeking troubleshooting advice for my first amp build.
  146. I need help with this preamp!!!
  147. BEHRINGER FCB1010 MOD QUESTION
  148. 2 seperate (switchable) power stages in same amp?
  149. electric guitar/mandolin preamp and effects
  150. Different approach to Harmonic Balancer question
  151. Andy Ross music "the Pro-Verb" schematics needed
  152. Harmonic Generator / guitar amp
  153. First post from a tube noob: Found 9 tubes!
  154. Valve spacing 6 x 6550
  155. plate starvation VS output tube overdrive.
  156. Best placement for a choke, VHT tube amp.
  157. Building an electret microphone Acoustic Guitar pick up. Want to ask something.
  158. Could use a second opinion.
  159. Buffering a Cathodyne Phase Splitter with Mosfets
  160. Zobel network, tone shaping, modify it !
  161. Reverb Tank for Peavey 30?
  162. Burns Orbit Three
  163. Lo budget, good sound
  164. mismatched loads on Split load PI
  165. AVT150H Issue
  166. Op-Amp Output to High-Impedance Load?
  167. Guitar Question - Pickup Crackle
  168. Found some Sunn Transformers for 2xKT88!
  169. Is my speaker ok to use with my tube amp??
  170. Help preamp 3band
  171. Behringer V-Ampire LX210/LX1200. Schematic
  172. Tube amp problem
  173. controlling effects pedals using VACTROLS
  174. How much gain does a bass preamp need?
  175. Pentode gain control in preamp
  176. proper speaker in 59 fender princeton
  177. bogen chb 100
  178. Peavy 130 Watt guitar amplifier Question
  179. Hybrid Bass Amp
  180. preamp for mfb speakers
  181. No Voltage drop across plate load resistor
  182. Guitar electronics question
  183. Steel pan acoustic feedback
  184. Help with reverb driver circuit
  185. A mad man's approach to attenuation
  186. Guitar Pedal Design EE Senior Project
  187. SWR 240W Redhead - need schematic - blowing fuses!
  188. Save an amp from a punk band! - Troubleshoot el34 12ax7 guitar amp
  189. Attempting repair on a Korg ax5G.
  190. Gallien Krueger 800RB Hi Channel Problem
  191. Home Theater subwoofer as bass amp?
  192. Mounting valve / tube sockets directly to turretboard
  193. Specific Filter Cap Replacement - Guild Bass Amp
  194. New to Tube Amps/ Issues with Tube Amps
  195. HH Bassmachine schematic wanted
  196. Ampeg B15N 1962 vs 1968
  197. Constant hum
  198. Hot Rod Deville filter capacitors
  199. Wurlitzer 200a Hum question
  200. Toroidal transformer Q
  201. Guitar Amp Project
  202. Crate Blue Voodoo 120 Bad Pots - Can they be replaced???
  203. Peavy VB-3
  204. Fender 5E4 voltage
  205. Huntington GA 10 Input connector
  206. Ampeg SVT 3 pro- raise from the dead project
  207. Roland Mobile AC line out modification
  208. Turning old tube stuff into guitar amps
  209. 4x6GV8 proposed build
  210. trace acoustic ta100r repair help
  211. Guitar preamp, lowering output voltage
  212. New Project: BIG bass amp 4x6l6!
  213. Yamaha GA-15 Guitar Amp
  214. Opionions on analog switches vs vacrols
  215. Powered Speaker - Lo-Z Balanced Input?
  216. 5E3 Tweed Deluxe distorting problem
  217. Tube Bass Preamp
  218. Help With Harsh Distortion
  219. My handwired guitar amplifier
  220. Carr Rambler
  221. Generalmusic sk880 keyboard scematic
  222. SS Tremelo for my tube intercom guitar amp
  223. Fuse type and fuse holder?
  224. Power Scaling
  225. Lots of craziness (weird noises and osc) happening in point to point 5W EL84 Amp
  226. Trying to build this preamp
  227. Hiss noise from Fender Frontman 15G, solution
  228. Bias a triode cathode negative for more gain?
  229. D.I.Y. 100 Dollar Guitar Amp ! 6V6/6L6 PP !
  230. Skytec TEC 6950 Help
  231. Switchable class
  232. Thoughts on adding preamp to bridged NAD 3140 for bass guitar
  233. A technical triode preamp question
  234. wampler faux tape echo pedal modifications
  235. KMD GV100D Low distorted output
  236. Output transformer for express build
  237. will 6x9 speaker work with guitar amp head...
  238. Vox AC4tv - 1/4 W Circuit Clone?
  239. Building an analog circuit to replace the SS circuit in Marshall MG15dfx
  240. Thoughts about a 6111-tube guitar/harp-mike direct box
  241. EL 34 / 6L6 SE Guitar Amp Project
  242. Modded Crate VC508 - Heavy 60Hz buzz
  243. 3 oscillator drone machine noise maker
  244. Tape Echo Restoration: My first project, many questions!
  245. Old Intercom guitar amp project
  246. Peavey Windsor Presence & Resonance problem
  247. Tiny terror clon Problem
  248. Amp Bias help ? Rebuild & Tube Change !
  249. Balanced/unbalanced line receiver
  250. ok time to build another one

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