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  1. Toggle switching multiple caps!?
  2. 7199 as Phase Inverter
  3. EL84 Plate Voltage
  4. Let me know, do you think this will work?
  5. Explain to me.......
  6. relay switching
  7. silicone rubber?
  8. What is typical max 6V6 plate V?
  9. Output Tube Load Resistance, Tube Current and Voltage
  10. Conjunctive filters (not?)
  11. Flyback diodes in a MusicMan...and otherwise
  12. 2 heads, 1 speaker
  13. Switching a BJT for a JFET
  14. unused 12AX7 triode - ground unused pins?
  15. Harmonic complexity
  16. seperate channels sharing cathode follower
  17. Volumen pot position in cathode follower design
  18. desigining gain stages for...
  19. How to select screen R's?
  20. tone control in negative feedback line
  21. Silvertone 1483 questions
  22. D-(mo) Lite- R schematic critique
  23. Driver stage after LTPI
  24. Shocks from Fender Amps
  25. If zobels and conj. filters aren't a bandaid.......
  26. Can 6AK6 tubes take 250 volts?
  27. what is this doing?
  28. input resistor...need to dump it.
  29. Can someone explain the inverter 12AX7 in the Fender Twin 5D8?
  30. Fixed bias, phase inverter AB1 PP... examples?
  31. Preserving even order harmonics in push-pull
  32. RC-10 do I need this?
  33. 500k vs. 1Meg Volume pots
  34. Distortion in PP vs SE
  35. 5D8 circuit walk
  36. question about Triad R-11A power transformer
  37. how to tell if an amp is operating in class b
  38. Major pop in my switching mod, help.
  39. Input Network - Shorting Jack
  40. Can you usually lift the ground on the tone stack?
  41. Biasing EL34's
  42. Building a Portaflex - PT, OT, cab?
  43. Amp basics
  44. Distorting/Not Distorting the phase inverter
  45. terrible sound at extremely master volume
  46. touch sensitivity
  47. Driving a small transformer
  48. Fender Grounding Scheme
  49. best post PI master volume
  50. Protection?
  51. KT88 in SE Config for Max output
  52. Fender reverb driver max current?
  53. Baxandall tone stack for guitar amp?
  54. EL34 vs 6V6
  55. Switching multiple volume knobs...
  56. speaker cable capacitance....DOH !
  57. using OA2 voltage regulator tube
  58. too much preamp signal??
  59. output power selector
  60. Single ended 2 x 6V6 in parallel schematic ideas?
  61. tone stack / LTP impedance problem??
  62. choke filter inducing noise
  63. Tube Books
  64. can someone explain this?
  65. Seriously noob question
  66. Mini toggle switches?
  67. finally.....
  68. No Center Tap and No 100 ohm R's in Filament Circuit
  69. How do you build your breadboards?
  70. Fender mixing/summing resistors
  71. Engl P-ball Lo lead channel schematic?
  72. Small tube amp for direct recording ? possible?
  73. Add an xlr input/preamp to Peavey 500bh
  74. Gain Stages and High Pass Filters
  75. Tube coating
  76. Scratchy pot fix for VVR
  77. Epiphone EA-65 circuit - wild and interesting
  78. next candidate - Stereo-vib GA-83S
  79. bassman circuit question(s)
  80. 6J7, 6F6, 5W4 single ended amp
  81. Relay power supply
  82. Building something like a Fender Vibratone using a used Leslie Speaker assembly?
  83. trim pots
  84. Calculating cutoff frequency
  85. Next: GA4-RE - oil film "memory?"
  86. Next: GA4-RE - oil film "memory?"
  87. Next: GA4-RE - oil film "memory?"
  88. 6EZ8 - 9 pin triple triode
  89. Is this possible ?
  90. Bias feed resistors
  91. Specs of an output transformer and their effects on the tone
  92. Best 50w marshall OT?
  93. Lower PT primary voltage == greater current capacity?
  94. Critique my Pspice and simple tube amp design?
  95. PT and tone?
  96. Transformer question
  97. Calculating gain, I don't get it, and I MUST be missing something simple...
  98. Vibroking Stage 1 cathode follower - tone?
  99. Determining frequencey roll-off imposed by PI capacitor
  100. Blackface Bassman AB165 - what transformer?
  101. Can someone give me a simple explanation of impedance?
  102. DC/transformer coupling
  103. need scem-plate follower
  104. Gibson Tremolo circuit
  105. 6CG7 As Reverb Driver
  106. DIY Bias probe - advice needed
  107. Marshall 3520 bass amp
  108. Chassis layout critique
  109. Fender OT and PT for high gain amp?
  110. PCB design and high voltages
  111. mallory 160 series capacitors
  112. Specing a power transformer
  113. Hammond 1750N...anyone used one
  114. Applying Negative Feedback
  115. creating asymetrical waveforms, and its effects
  116. Routing edges?
  117. Audio - linear transistors
  118. Understanding pentode/triode switch
  119. I have some voltage questions!!!!
  120. My PSU design
  121. aa1164 schematic needed
  122. Thanks all, making progress!!
  123. What gauge speaker wire?
  124. RoHS Directive...lets clear up the confusion.
  125. RC coupling, I am confused!
  126. Your high gain approach?
  127. Is 1 Meg ohm REALLY the most for a grid leak resistor?
  128. PCB pots
  129. please help - building a tube driven reverb
  130. 2E26 - Great NOS experimenter tube for cheap!
  131. 5E3 Tone Stack / Volume Control Theory
  132. How to calculate output power for a push pull AB1 guitar amp
  133. Grid current limiting
  134. Parrallel triodes
  135. 6Y6G - 'Nother Great NOS output tube cheap
  136. Hammond 1750N OT color code?
  137. What's the best single-control tone stack you've seen?
  138. Qn about Epiphone EA33RVT output stage grid leak R
  139. zener on ct...again
  140. Reverb and Driver tube: 12AT7 or 12AX7?
  141. How much interaction accures between the two halves of a double triode?
  142. Best shelf filter for signal to noise ratio?
  143. Can I do this?
  144. fender capacitor choices
  145. Power Scaling...again
  146. Parallel triodes for smoother overdrive?
  147. PSU observations and questions
  148. I know different people have different opinions but...
  149. V30 Ghost notes
  150. Long Tail component values
  151. Nichicon VX bypass caps
  152. Choke question
  153. "unstablilized" cathode bias voltage
  154. potentiometers, linear vs audio
  155. 6G15 stand alone reverb (PT and Reverb tranny qns)
  156. Help me break down this tremolo circuit
  157. why the prevalence of push pull?
  158. Low pass cut-off freq
  159. Grid stoppers?
  160. Peavey ReValver MKIII - Change tubes in your amp model?
  161. Different rectifiers and proportion of voltage dropped
  162. Why is the gain control a pot feeding the signal to earth
  163. Heptode as mixer
  164. The myth behind Class A
  165. Rectifier tubes and sag
  166. Mid Cut at 700 Hz
  167. Question about class AB operation
  168. OT impedance for P-P 6L6's
  169. Gibson GA42RVT
  170. Critique my idea please
  171. calculating plate load for non-traditional power tubes
  172. anyone know where i can get a 5k P/P DPDT?
  173. Question about impedence selector and different tubes
  174. Power triodes - biasing hot?
  175. Equivalent gain - triodes in parallel
  176. Oscope advice please
  177. Single ended 12a_7 ???
  178. using an inductor and capacitor as a low pass filter at the 12ax7 cathode
  179. Relay channel switch - help needed
  180. can i remove the vibrato circuit??
  181. TUT6 is here, honey! I'll be in the bathroom...
  182. Filter choke in 6G15
  183. Circuit to switch between 3 channels
  184. field coils...again...
  185. finding custom pot tapers?
  186. Watts-volts chart
  187. 6G15 reverb driver and tranny specs - more questions (Dang!)
  188. Fender Bassman ext. speaker out
  189. Resonance cap in NFB?
  190. Tremolo - design challenge
  191. Bass Amp OT and tubes
  192. Max input filter cap for EZ81?
  193. Filter capacitors???
  194. help!
  195. Adding an isolation transformer
  196. measuring OT's primary impedance
  197. Dummy load box heatsink Q
  198. using a 6F6 instead of 6V6 to lower power
  199. Magnet Wire-Making Inductors Q
  200. what do you think
  201. 6L6GC to KT66
  202. Polyvinylcarbazole to replace Cadmium Sulfide?
  203. How does Rk affect tone/gain?
  204. Coil winding and transformers
  205. filter caps and tone
  206. Load / primary impedance
  207. Making Oscope test leads Qs
  208. What is this??
  209. Fuse Eating Variac.
  210. Choke/resistor switch?
  211. Cathode Follower?
  212. Tone Stack Location
  213. Q about clean boost vs another tube stage
  214. help adding 'preamp in' to existing amp...
  215. Caps in poweramp stage
  216. Last preamp stage in a Peavey 5150
  217. help using ECC82 as output tube
  218. Ampeg V4 Bias Circuit Question
  219. where do these begin to roll off?
  220. Boat anchor OT
  221. Bassman input stage
  222. Building a Reverb Champ
  223. help with connections on RS Hygrade OT
  224. Speakers For A Steel Guitar Amp
  225. Pentode question.
  226. Low power twin vs. high power twin
  227. Choke positon in a BF Champ
  228. Duplicate a transformer?
  229. To AU or DW...7 that is
  230. Champ 12 Reverb Circuit on a Gretsch 5222
  231. Drivers in a bass cabinet
  232. Fender Champ Diode Power Supply
  233. transformer question
  234. Favorite one tube tremolo
  235. OTs and Global NFBs
  236. QUESTION: 12AX7 Considerations
  237. Single Ended - switch
  238. couple grid stopper questions
  239. Weird Cap in Mesa Lead Channel
  240. VHT preamp design
  241. Vibro King questions
  242. Help understanding tube preamp output levels
  243. Looking for opinions about Kiwame resistors.
  244. Is that ground buss wire along the pot covers really any help?
  245. Help understanding switch relays
  246. Usiing a resistor to increase impedance
  247. Plate voltage Tung Sol 5881
  248. Dual Rectifier Tubes
  249. 6EY6 & Cathode bias
  250. Voltage rating for AC coupling caps between stages.