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  1. Bench supply ideas
  2. A Newbie Tx Question
  3. Volume Control Help!
  4. Could anyone opine on this circuit?
  5. 5U4 Rectifier. Maximum filter cap value?
  6. Grounding outputs?
  7. Happy holidays folks.
  8. Thermionic diode
  9. Lafayette amp arcing Rectifier problem
  10. ECF801 any good for audio
  11. Harman Kardon Citation II PI question
  12. 6N1P
  13. Need advice for a 93 Fender "The Twin"
  14. Shorted secondary windings of transformer
  15. Toasted my rectifier - need some pointers to troubleshoot
  16. Parallel amp connection to speakers, SS + tube
  17. Loose pin on a JJ 300B
  18. Measuring milliamp with Fluke 771 Clamp Meter Question?
  19. Spice - and Sting is nowhere to be seen...
  20. Realistic Stereo 24
  21. 6N3P-EV measured Ia/Va/Vg curves
  22. Anyone have the Meng Mini X1 amp here?
  23. EL84/6SN7 tube amp
  24. Something Like A 6EU7?
  25. Which 845 amp?
  26. another 12ax7 preamp
  27. SOHA v2 cost
  28. Yarland FV34C-111 Valve substitution
  29. My Latest DIY Draft (Beta) Build - Resurrected Sansui AU-111
  30. XiangSheng D-2020-KT88
  31. Edcor vs Electra-Print
  32. adding headphone jack to dynaco pas 3 clone
  33. Revising an old tube preamp section: where to get the knowledge?
  34. 3 Caps parallel to series vs ??? Sonic Performance?
  35. 6CG7 Bias Current?
  36. Output Pentode Screen at half Plate voltage
  37. PP to parallel
  38. Edcor vs Electra-Print
  39. Show off your P2P wiring.
  40. adapting 2 SE boards for a PP driver stage
  41. Freed transformer info needed
  42. Recomended connectors?
  43. COSMOS amp, Japan
  44. Advantage to constant current draw from power supply?
  45. SP9 schematic questions...
  46. Would you rebuild this?
  47. possible advantage to global???
  48. Correct Path: Diodes Or Rectifier Tube?
  49. 6BQ5 Bias Point Help
  50. Old Hammond 1640SE OPT
  51. Copland CVA 306 Can work only with 2 tubes ??
  52. Cleaning Edison Price posts
  53. need help on treble distortion with my EAR834p phono
  54. SE 6CB5A amp with 6N7 driver
  55. McAlister PP150
  56. Standard Input Design Value
  57. Breadboard help
  58. Odd amp built with PL81 / PL36
  59. Has anyone built a 47 SE amp?
  60. Which EL84
  61. First attempt p2p valve power amp
  62. Fundamental Pentode Question
  63. EL34 Triode Mode Resistors
  64. 807 SE Schematic Critiques
  65. Amp for Magneplanar 1.6
  66. After Christmas free time
  67. Tubelab Single Ended Amps
  68. I suppose I am a little dense
  69. 12AU7 SE practise amp project
  70. LED bias with gNFB
  71. Schematic question - what this cap is for ?
  72. Hi fi stereo tube amp through guitar speakers??
  73. Output transformer
  74. 50C5s in PP ?
  75. input resistor on the JE LAB 300B
  76. Sockets for UY 41
  77. Any good tube amp kits for a first attempt?
  78. power supply suggestions and advice
  79. favourite midrange,treble tubes
  80. How can I turn 120VAC to 100VAC for Tango MS-UVD in an 845 SE amp?
  81. suspect a bad tube-any simple checks?
  82. Long-Tailed Pair, pse. share your views...
  83. 12AT7 vs 6SL7 as splitter for 6V6 ppp amp
  84. Ultralinear but no UL taps.
  85. OPT Question
  86. An Important Dumb Question-Newbie Stuff
  87. Switched to LED bias on 6SN7 cathode - how do I calculate current?
  88. Autobias OTL....Any thoughts?
  89. Valve Line Amp suggestions
  90. another 6c33 se
  91. no sound on the PHONO channel....
  92. What do you think of this cheap tube amplifier?
  93. What guitar amp should I build from these?
  94. EL34 Hickok 439B setup
  95. Hickok 605
  96. Help! Want to Diy Tube Amp!
  97. Anyone care for some troubleshooting? Hum issue
  98. Re-tubing stock ST70
  99. your opinion of this bias problem
  100. paraphase with follower
  101. Noisy transformer
  102. 6BN11 in triode mode...any experience ?
  103. morgan jones:output stages
  104. Dynaco SCA-35 - fan Cooling?
  105. Partridge Vs Edcor
  106. Feedback with a choke ?
  107. Do you have a tube tester?
  108. Level matching?
  109. cascoded bjt ccs - design check please
  110. Hammond Organ amp to guitar amp
  111. Square wave testing......a guitar amp
  112. help on amp gain structure
  113. iPod/BlackBerry/MP3 input
  114. Shuguang 805 - Advice
  115. Mains Transformer Hums under load
  116. Film Caps in Tube Amps
  117. K12G left channel dead: HELP!
  118. Model 16LS Stereo Integrated Tube Amplifier
  119. Help identifying components
  120. Odd Block Series 1 6L6 Amp Power Supply
  121. Mesa/Boogie Bass 400+ mod question
  122. Need Help for Improving HEATHKIT AA 151
  123. Troubleshooting help for a neophyte
  124. can cap - rectifier spacing
  125. tube dampers anyone
  126. cnc aluminium chassis for tube amps
  127. Balanced Input as Phase Inverter?
  128. 300B SET amp input sensitivity, Help.
  129. Any thoughts on this circuit?
  130. Will This Work? 26 Linestage
  131. Eico HF-89a question
  132. 100TH Ep-Ip Curve
  133. Power Transformer - Can you use separate tap for screens?
  134. Power supply for PP1C - sanity check
  135. Blue Velvet preamp
  136. Paid 5$ for this deluxe/vibrolux schematic! some connections missing help!!
  137. Universal Power Transformer
  138. Tone control in a TubelabSE?
  139. 300B Sweet Spot
  140. Does 81ma sound about right?
  141. Frank's EC8010/6C45P-GM70 SE Interstage.
  142. I need a bit of help to fine tune my PP EL84 amp
  143. IS there any OTL pre amps out there?
  144. Rubycon oil caps
  145. 6BQ5 Sweet Spot?-Charts for other than 250 Screen Volts?
  146. Project Planning (Steps/Order)
  147. Question about coding on tube
  148. 6H13C OTL using 12 parallel tubes
  149. SE 2 watt clean amp?
  150. Transformers for tweeter amps on ferrite donuts
  151. Noob Help: Converting Thomas organ / Wiring
  152. Vintage power transformers
  153. 1625 pp amp layout - comments invited
  154. Grundig 3028 HELP
  155. Oscillation in hybrid amp, how to solve?
  156. Hipass filter to control master bias? - Why attempt to reproduce DC in a tube amp?
  157. Audio Note M-Zero remote control problem
  158. SE TESLA E34L
  159. Need help to restore Sansui 500A
  160. Push-Push OTL?
  161. Stereo Circlotron using only two supplies...
  162. Mercury 1000/2000 KT-88 and 6l6 design bug
  163. Has some tried to use E/PL81 in PPP setup
  164. Heatsinks for tubes?
  165. Mechanical Isolation for a Power Transformer
  166. My First Tube Amp Build: S5 K12G
  167. Size does matter!
  168. tubelabSE with 300b
  169. EL509 (JJ) or PL519?
  170. Clone of JTM45
  171. how can i build a Choke?
  172. A new design
  173. My first and last DIY tube amp !
  174. anyone help convert dual volume to single?
  175. 480-0-480vac To Power A SE GM70!??
  176. Triode plate resistance == internal negative feedback?
  177. Quiz: which tube is this?
  178. 6EM7 Headphone Spud - Please comment
  179. replacement tubes
  180. Mengyue Mini EL34B stereo balance issues..
  181. Email Address for Heiner Jakobi ?
  182. A quick tube matching question
  183. 30W triode?
  184. My Project: Pilot 602
  185. Fake glow LED under valve in commercial devices
  186. Unknown PP output transformers
  187. Switching Amp? 25watts WITH OUT tubes or Transistors?!?
  188. Power Supply B+ voltage?
  189. Newby here first post.
  190. Cheap and easy tube amp.
  191. Rate/critique my Dynaco A410 mods..
  192. Hammond 1650n and Dynaco mark III circuit.
  193. A quick safety question
  194. George RE: 26E6WG
  195. Advice for a beginner please..
  196. Balancing the PP cathode bias
  197. Hybrid Circlotron Amplifier with only 3 components on the signal path
  198. PARTRIGE transformer
  199. Western Electric 205D Tube for Preamp?
  200. Does anyone have the PDF for the Plitron 4142 ?
  201. 16sj8
  202. Mumbo-Jumbo and power supply caps
  203. Restoring Baldwin 40 watt amps
  204. LTspice U/L Transformer Symbol
  205. advice please, a setup to characterise opts
  206. 809's in Class B P-P w/feedback
  207. 5-pin plug needed
  208. Shorting Plugs
  209. Simple Audio Generator
  210. SE Amps with Variable Impedance Loads
  211. Linearity
  212. PSU Transformers for 6922 SRPP tube preamp
  213. 6JN8 curves?
  214. 6C6-2A3 Amplifier: Changes for 45?
  215. Which rectifier tubes are still manufactured?
  216. transconductance effect on peak power?
  217. Good Power Resistores ???
  218. Super cheap triode amplifier
  219. OTL designed by Glen Orr AudioXpress
  220. Heater voltages
  221. wire thickness
  222. JC Morrison circuits
  223. Building Valve Amplifier from schematic
  224. CliffUSA VS Cliff UK
  225. WHERE ARE;AND HOW ARE THE HARMONICS GENERATED?
  226. resistors for LT317 heater circuit
  227. Function of R2
  228. balanced input for any amplifier
  229. Spect output peak to peak for 807 SE ul
  230. HK Citation II Output Transformer Data ???
  231. Looking to purchase non-working output transformers
  232. metals!
  233. Another 2A3 build
  234. where r crossline master volumes from?
  235. Output Audio Transformer Impedance
  236. The echo effect of a headphone AMP
  237. flexy -a multirole driver/preamp-
  238. Scott 233 Bias procedure question
  239. What to do with 6DQ6B's?
  240. Goodcomponent - another chinese supplier
  241. Do EL34s in pentode mode PP AB1 sound better with lower screen voltage?
  242. Bogen MX60A as pre-amp
  243. kiwi.baby-huey. And so it begins...
  244. "sustain bias" and other organ amp ?s
  245. max current draw according to loadlines and reality
  246. Where to buy EI transformer bobbins?
  247. DHT filament circuit layouts ?
  248. After PP projects new SE project
  249. Gyrator Frequency Response?
  250. converting a dynaco mark IV driver board for headphone amp use

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