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  1. Very old Valve amp
  2. Amp Xfmr Chassis Orientation
  3. Montgomery Wards Model 62-9033
  4. Latest pruchase Marshall 100HDFX
  5. Suitcase Amp Volume Pot
  6. EQ vs Tone Stack
  7. Dynacord DA15/V Schmatic wanted
  8. Marshall 200 Watt "PIG" Build
  9. Where to put the tone stack?
  10. DIY AC15 AC50 normal and top boost channels Tremolo not working
  11. Pignose 7-100 Mods
  12. solid state and tube in parallel (like a bizarro roland jazz chorus)?
  13. What does that resistor do..?
  14. Orange and Other Amp Design Features
  15. GE 5 Star and Other High Reliability Tubes
  16. Cobalt Twin Amp Design
  17. Calculating plate load impedance with a mixing resistor
  18. 12AX7 Switched Listening Test
  19. Remove Silicon Clippers, Start stacking opamps/only LED clippers are accetable.
  20. ecc83 vs 6sl7 any old tricks?
  21. Fender Hot Rod Deville 410 Reissue Clean Up
  22. Piezo Pick Up and Pre Amp Project...
  23. Faylon P200 rebuild
  24. Webcor 2611 morph into practice amp
  25. Fender FM212 - Deluxe 90 PowerAmp problems
  26. Troubleshooting Power Amp/Output of a Fender Deluxe 90
  27. EVH 5150 III
  28. mod for microphone input ?
  29. Philco Tube Radio Guitar Amp Project
  30. 90's Ampeg Reverberocket Reissue Speakers
  31. Converting a vintage electret condenser to phantom power
  32. You'll likely learn something watching this....
  33. Troubleshooting my Ashdown head
  34. Newcomb pathfinder PA into guitar amp
  35. 6X4 or EZ81 rectifiers in a guitar amp
  36. Ampeg B15 preamp: Drive balanced transformer from PI?
  37. Need assistance with a bad Sunn Beta Lead
  38. Viking RP61 tube preamp into Mic preamp?
  39. Latest purchase
  40. A transformer as an effect
  41. Connecting Guitar Tube Amp to External Line Match Audio Step Up Transformer
  42. New amp build, initial thoughts?
  43. Beginner Load Line Question
  44. Headphones on 18W Marshall
  45. Keyer Chip issues
  46. sd convertible 100w head diy preamp modules
  47. Acetone organ distorted output
  48. Tonal effect of fluctuation in 12ax7 supply voltage?
  49. Reverb replacement
  50. Guitar headphone amp with cab sim
  51. Resistors Chained up/Parallel with OPT Primaries
  52. help improving cheap QFX wireless mic
  53. 1961 Silvertone Model 4722 Organ Guitar amp conversion questions
  54. Modding an old practice amp - switches, pots etc
  55. Stumped! 5F11 circuit owning me.
  56. Need a catch-all pin 1 solution
  57. Vermona Synthesizer troubleshooting
  58. Peavey PV-1.3K power amp repair question
  59. 12AX7 Distortion - high grid voltage?
  60. Peavey XD234 Required
  61. Peavey PV1500
  62. Replacing 3 Pin Rhodes Capacitors
  63. 6080 DC coupled guitar amp
  64. Need Help with a SWR Workingman's 12 Combo Amp
  65. Removing a humbucker increases noise?
  66. Guitar Speaker Chat
  67. I Warped Back to the 80s' hahaha
  68. Amplifying an electro acoustic guitar
  69. 6080 cascade guitar amp
  70. Blues Jr. Mods
  71. Hum immediate when powering on
  72. stomp box with low impedance output
  73. BBE 362 NR Sonic Maximizer
  74. How do I limit tube supply voltage in the event B+ rises a little?
  75. Power output from a quad of 6V6?
  76. Missing reverb tank
  77. Preamp stage is going very asymmetrical. Why?
  78. Using mic pre for bass?
  79. Marshall 2210 amp repair
  80. High voltage Ultra-Linear
  81. non-electronic question about stiffening an SG clone
  82. DIY Spring Reverb circuit for old mixer setup
  83. Preparing my first low power guitar amp build.
  84. Hypex ucd2k and smps3k input level control
  85. Non-electronic question about guitar nut
  86. Matchless Lightning inspired build
  87. Tube guitar amp w/ mosfet CCS's, or class 2 operation, etc?
  88. Cheap Chinese amp modules any good?
  89. Wanted PT2395 delay PCB, and 2395 bits
  90. Help me choose a layout
  91. noisy foot switch; is there a fix?
  92. Marshall Avg150h Problem
  93. Simmons DA200S: Power Amp PCB
  94. DIY bass cabinet with 12" driver
  95. Push-Pull fixed bias and output power question
  96. Concerns about a 54 yr old Wurlitzer vacuum tube organ & safety of old electronics
  97. Alesis Ra-100 repair help
  98. Series 6N2P-EV don't lit, no sound.
  99. Guitar electronics question
  100. Advice needed on 100 watt Plexi clone build
  101. Good tube amp for bass
  102. Marshall 9005 modification
  103. Buffer/Splitter Input Resistors Value?
  104. Input capacitors on guitar amps?
  105. Upright electric bass with amp and speakers built in.
  106. Micro bass amps, ToneHammer, littleMark, Shuttle, etc.
  107. DIY power amp suitable for bass.
  108. Anyone have experience with Delta 10's for bass speakers?
  109. Recommend me a tube pre amp for guitar
  110. Behringer A500 Supply Rail Voltage.
  111. PT from scratch for 100 W Marshall 2555 Silver Jubilee - advices and comments ...
  112. add an XLR out to an amp that doesn't have it?
  113. Help Wirring Bass Guitar on board preamp
  114. Preamp Build Questions
  115. Guitar Bass Preamp Project
  116. SM Pro Audio V-Machine fan noise
  117. Build a Sunn Model T clone. Some questions. (EU)
  118. 1955 Bogen J330 Mic Input Problem
  119. DIY preamp for amp head - general guidelines?
  120. Carvin legacy guitar amp build oscillation trouble
  121. 1954 BOGEN Bass Control
  122. Roland SRA 540
  123. HF Oscillations- How Do I Scope?
  124. Should (can) I go pentode instead of UL
  125. hiss/noise from jcm clone
  126. Guitar power amplifier MOSFET SE 5W
  127. EF86 | MIC.PRE | MODULATION | REDD | E. BARBOUR
  128. Help with a vibe amp design
  129. Hammond AO-39 and AO-35 organ to guitar power amp conversion
  130. 1955 Gibson GA-20 should replace speaker; How?
  131. Quad of EL84 Screen Resistors
  132. Phantom power preamp for microphone
  133. Need help with microphone preamp.
  134. Help choose tone stack
  135. Strat Squire pickup wiring questions
  136. Where can i find a replacement rocker switch for this guitar pedal?
  137. Behringer BX3000T Bass Head
  138. Ground currents
  139. Mann 100 PAR into guitar amp
  140. Happy so far on amp build project
  141. New Tubes For Peavey Valveking VK100
  142. Click/pop with digitally switched effects loop
  143. Using Sweep Tubes for an Amp Build
  144. Does Plate Voltage Matter?
  145. Another Layout Proof Request - Marshall JCM800
  146. ax84 P1 Extreme Based 2 Channel Amp
  147. Classic 30 ohm load
  148. Tube amp chassis layout proposal
  149. DIY Vocal Compressor. Need Help !!!
  150. going solid?
  151. Add magnetic pickup to piezo pickup and preamp.
  152. Turning my Reel-to-reel into guitar amp.
  153. Instrument amp design goals
  154. Why did Fender do this ?
  155. Guitar preamp grid bias problem
  156. Help: MG100RCD Squeels (even with no input)
  157. Breadboard Bassman with runaway bias!
  158. 70V Line Matching Transformer - Good OT substitute?
  159. 420 Watts Speaker Not Really 420 Watts?
  160. What does this triode do in circuit?
  161. Behringer A500 power transistor insulator missing
  162. Guitar Amp Design
  163. Craig Anderton Buffer Board mods
  164. Build Ideas, Suggestions
  165. Analogue Parametric EQ - Calrec Polar...
  166. 18W homemade tube amp - Need advise
  167. compression/expansion control in guitar preamp
  168. Behringer's Europower EPQ450
  169. 6gk5/6fq5 as input/preamp stage tube ?
  170. Isolation transformer question
  171. Couple Questions - Grid Stoppers and High Cut
  172. thoughts on heater wiring orientation
  173. Testing The Tube Guitar Amplifier
  174. JTM45 Bias Voltage moving around & bad distortion
  175. Connect plate after choke?
  176. blackstar stage 60 diy
  177. Question 'bout valve stompboxes
  178. 1965 Fender Deluxe Reverb - DI Connection?
  179. Buffer stage after Alembic F2b design
  180. Odd noises; guitar, environment, or amp?
  181. Fender reverb stand-alone
  182. Behringer K1800FX
  183. master volume addition - Webster Chicago W830
  184. noiseless diodes setup choice
  185. Help choose a guitar amp to build?
  186. Weirdness with virtual CT on 6V heater tap
  187. Marshall 1974X
  188. Preamp Output Transformer
  189. Traynor YCL-3 Mark III Rebuild
  190. Sunn Sceptre Style Build
  191. Pepco (Pine Electronics) 801 Chassis Isolation Mod
  192. Fender Bassman AA864 build
  193. Gulbransen Organ Resurrection -
  194. Strange voltage reading
  195. Tube Preamp (my first)
  196. Diy toroid transformers for 5E3 guitar amp?
  197. Marshall 18W TA
  198. 2002 Fender Twin Amp **Unusual Problem**
  199. Behringer NU1000 Pinout..
  200. Princeton 112+ Loose PCB Pot Shaft
  201. Greenchild Trbus Drive
  202. Can someone help me proof this layout?
  203. Laney Ironheart Irt30-112
  204. Guitar Amplifier
  205. Hot Rod Deluxe issue, need advise!
  206. Guitar amp and bass amp
  207. Amp Build Not Working Correctly....
  208. Tuning a ported guitar cab
  209. Who made these early Peavey 6L6GC
  210. Inc / Dec Stomp Box
  211. Alnico magnet heat?
  212. Peavey 260C module rare version?
  213. Pro reverb AA165 circuit low output from vibrato channel
  214. Class AB amp trouble shooting (Scope shows square not sine)
  215. *small* Bass guitar amplifier
  216. 1950 Gretsch Electromatic Artist
  217. huge voltage drop after diode rectifier
  218. Questions on open baffles speaker.
  219. behringer gx110
  220. Crown DC-300A
  221. Bassman AA-864 Preamp Question
  222. Blackstar combo 20 that squeals
  223. 6V6/6L6 Switchable Guitar Amp
  224. input impedance of output transformer gibson ga20rvt amp
  225. career change for Jensen TR10 spkr
  226. gibson ga15rvt and ga20rvt amps
  227. Vox Bass Pre-Amplifier 1201 from Venue Combo
  228. Park By Marshall just a quiet fuzz
  229. why does 1 amp run hotter than another
  230. Guitar tube Pre-amp
  231. Power supply and transformer - good pair? (Hexaphonic guitar box)
  232. Mosfet driver
  233. Mullard 5-10 for guitar ?
  234. Help me modify Peavey Blazer Amp
  235. Guitar amp screen resistor selection
  236. Rotary Speaker Cabinet Project
  237. General bass amp questionnaire
  238. Looking for someone to build an acoustic guitar preamp for me
  239. any tank circuit calculator?
  240. wires on an old humbucker
  241. LEM Baby Tape Echo PSU
  242. dual-tube SE
  243. 4-ohm 212 L-Pad
  244. Replacing Power Amp in Fender FM212R
  245. built a Sunn 2000S copy
  246. Heathkit A7 amp tube lineup
  247. Bass guitar wiring
  248. hybrid amp question
  249. New Bass Rig
  250. capacitor question

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