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  1. Parallel amp connection to speakers, SS + tube
  2. Loose pin on a JJ 300B
  3. Measuring milliamp with Fluke 771 Clamp Meter Question?
  4. Spice - and Sting is nowhere to be seen...
  5. Realistic Stereo 24
  6. 6N3P-EV measured Ia/Va/Vg curves
  7. Anyone have the Meng Mini X1 amp here?
  8. EL84/6SN7 tube amp
  9. Something Like A 6EU7?
  10. Which 845 amp?
  11. another 12ax7 preamp
  12. SOHA v2 cost
  13. Yarland FV34C-111 Valve substitution
  14. My Latest DIY Draft (Beta) Build - Resurrected Sansui AU-111
  15. XiangSheng D-2020-KT88
  16. Edcor vs Electra-Print
  17. adding headphone jack to dynaco pas 3 clone
  18. Revising an old tube preamp section: where to get the knowledge?
  19. 3 Caps parallel to series vs ??? Sonic Performance?
  20. 6CG7 Bias Current?
  21. Output Pentode Screen at half Plate voltage
  22. PP to parallel
  23. Edcor vs Electra-Print
  24. Show off your P2P wiring.
  25. adapting 2 SE boards for a PP driver stage
  26. Freed transformer info needed
  27. Recomended connectors?
  28. COSMOS amp, Japan
  29. Advantage to constant current draw from power supply?
  30. SP9 schematic questions...
  31. Would you rebuild this?
  32. possible advantage to global???
  33. Correct Path: Diodes Or Rectifier Tube?
  34. 6BQ5 Bias Point Help
  35. Old Hammond 1640SE OPT
  36. Copland CVA 306 Can work only with 2 tubes ??
  37. Cleaning Edison Price posts
  38. need help on treble distortion with my EAR834p phono
  39. SE 6CB5A amp with 6N7 driver
  40. McAlister PP150
  41. Standard Input Design Value
  42. Breadboard help
  43. Odd amp built with PL81 / PL36
  44. Has anyone built a 47 SE amp?
  45. Which EL84
  46. First attempt p2p valve power amp
  47. Fundamental Pentode Question
  48. EL34 Triode Mode Resistors
  49. 807 SE Schematic Critiques
  50. Amp for Magneplanar 1.6
  51. After Christmas free time
  52. Tubelab Single Ended Amps
  53. I suppose I am a little dense
  54. 12AU7 SE practise amp project
  55. LED bias with gNFB
  56. Schematic question - what this cap is for ?
  57. Hi fi stereo tube amp through guitar speakers??
  58. Output transformer
  59. 50C5s in PP ?
  60. input resistor on the JE LAB 300B
  61. Sockets for UY 41
  62. Any good tube amp kits for a first attempt?
  63. power supply suggestions and advice
  64. favourite midrange,treble tubes
  65. How can I turn 120VAC to 100VAC for Tango MS-UVD in an 845 SE amp?
  66. suspect a bad tube-any simple checks?
  67. Long-Tailed Pair, pse. share your views...
  68. 12AT7 vs 6SL7 as splitter for 6V6 ppp amp
  69. Ultralinear but no UL taps.
  70. OPT Question
  71. An Important Dumb Question-Newbie Stuff
  72. Switched to LED bias on 6SN7 cathode - how do I calculate current?
  73. Autobias OTL....Any thoughts?
  74. Valve Line Amp suggestions
  75. another 6c33 se
  76. no sound on the PHONO channel....
  77. What do you think of this cheap tube amplifier?
  78. What guitar amp should I build from these?
  79. EL34 Hickok 439B setup
  80. Hickok 605
  81. Help! Want to Diy Tube Amp!
  82. Anyone care for some troubleshooting? Hum issue
  83. Re-tubing stock ST70
  84. your opinion of this bias problem
  85. paraphase with follower
  86. Noisy transformer
  87. 6BN11 in triode mode...any experience ?
  88. morgan jones:output stages
  89. Dynaco SCA-35 - fan Cooling?
  90. Partridge Vs Edcor
  91. Feedback with a choke ?
  92. Do you have a tube tester?
  93. Level matching?
  94. cascoded bjt ccs - design check please
  95. Hammond Organ amp to guitar amp
  96. Square wave testing......a guitar amp
  97. help on amp gain structure
  98. iPod/BlackBerry/MP3 input
  99. Shuguang 805 - Advice
  100. Mains Transformer Hums under load
  101. Film Caps in Tube Amps
  102. K12G left channel dead: HELP!
  103. Model 16LS Stereo Integrated Tube Amplifier
  104. Help identifying components
  105. Odd Block Series 1 6L6 Amp Power Supply
  106. Mesa/Boogie Bass 400+ mod question
  107. Need Help for Improving HEATHKIT AA 151
  108. Troubleshooting help for a neophyte
  109. can cap - rectifier spacing
  110. tube dampers anyone
  111. cnc aluminium chassis for tube amps
  112. Balanced Input as Phase Inverter?
  113. 300B SET amp input sensitivity, Help.
  114. Any thoughts on this circuit?
  115. Will This Work? 26 Linestage
  116. Eico HF-89a question
  117. 100TH Ep-Ip Curve
  118. Power Transformer - Can you use separate tap for screens?
  119. Power supply for PP1C - sanity check
  120. Blue Velvet preamp
  121. Paid 5$ for this deluxe/vibrolux schematic! some connections missing help!!
  122. Universal Power Transformer
  123. Tone control in a TubelabSE?
  124. 300B Sweet Spot
  125. Does 81ma sound about right?
  126. Frank's EC8010/6C45P-GM70 SE Interstage.
  127. I need a bit of help to fine tune my PP EL84 amp
  128. IS there any OTL pre amps out there?
  129. Rubycon oil caps
  130. 6BQ5 Sweet Spot?-Charts for other than 250 Screen Volts?
  131. Project Planning (Steps/Order)
  132. Question about coding on tube
  133. 6H13C OTL using 12 parallel tubes
  134. SE 2 watt clean amp?
  135. Transformers for tweeter amps on ferrite donuts
  136. Noob Help: Converting Thomas organ / Wiring
  137. Vintage power transformers
  138. 1625 pp amp layout - comments invited
  139. Grundig 3028 HELP
  140. Oscillation in hybrid amp, how to solve?
  141. Hipass filter to control master bias? - Why attempt to reproduce DC in a tube amp?
  142. Audio Note M-Zero remote control problem
  143. SE TESLA E34L
  144. Need help to restore Sansui 500A
  145. Push-Push OTL?
  146. Stereo Circlotron using only two supplies...
  147. Mercury 1000/2000 KT-88 and 6l6 design bug
  148. Has some tried to use E/PL81 in PPP setup
  149. Heatsinks for tubes?
  150. Mechanical Isolation for a Power Transformer
  151. My First Tube Amp Build: S5 K12G
  152. Size does matter!
  153. tubelabSE with 300b
  154. EL509 (JJ) or PL519?
  155. Clone of JTM45
  156. how can i build a Choke?
  157. A new design
  158. My first and last DIY tube amp !
  159. anyone help convert dual volume to single?
  160. 480-0-480vac To Power A SE GM70!??
  161. Triode plate resistance == internal negative feedback?
  162. Quiz: which tube is this?
  163. 6EM7 Headphone Spud - Please comment
  164. replacement tubes
  165. Mengyue Mini EL34B stereo balance issues..
  166. Email Address for Heiner Jakobi ?
  167. A quick tube matching question
  168. 30W triode?
  169. My Project: Pilot 602
  170. Fake glow LED under valve in commercial devices
  171. Unknown PP output transformers
  172. Switching Amp? 25watts WITH OUT tubes or Transistors?!?
  173. Power Supply B+ voltage?
  174. Newby here first post.
  175. Cheap and easy tube amp.
  176. Rate/critique my Dynaco A410 mods..
  177. Hammond 1650n and Dynaco mark III circuit.
  178. A quick safety question
  179. George RE: 26E6WG
  180. Advice for a beginner please..
  181. Balancing the PP cathode bias
  182. Hybrid Circlotron Amplifier with only 3 components on the signal path
  183. PARTRIGE transformer
  184. Western Electric 205D Tube for Preamp?
  185. Does anyone have the PDF for the Plitron 4142 ?
  186. 16sj8
  187. Mumbo-Jumbo and power supply caps
  188. Restoring Baldwin 40 watt amps
  189. LTspice U/L Transformer Symbol
  190. advice please, a setup to characterise opts
  191. 809's in Class B P-P w/feedback
  192. 5-pin plug needed
  193. Shorting Plugs
  194. Simple Audio Generator
  195. SE Amps with Variable Impedance Loads
  196. Linearity
  197. PSU Transformers for 6922 SRPP tube preamp
  198. 6JN8 curves?
  199. 6C6-2A3 Amplifier: Changes for 45?
  200. Which rectifier tubes are still manufactured?
  201. transconductance effect on peak power?
  202. Good Power Resistores ???
  203. Super cheap triode amplifier
  204. OTL designed by Glen Orr AudioXpress
  205. Heater voltages
  206. wire thickness
  207. JC Morrison circuits
  208. Building Valve Amplifier from schematic
  209. CliffUSA VS Cliff UK
  210. WHERE ARE;AND HOW ARE THE HARMONICS GENERATED?
  211. resistors for LT317 heater circuit
  212. Function of R2
  213. balanced input for any amplifier
  214. Spect output peak to peak for 807 SE ul
  215. HK Citation II Output Transformer Data ???
  216. Looking to purchase non-working output transformers
  217. metals!
  218. Another 2A3 build
  219. where r crossline master volumes from?
  220. Output Audio Transformer Impedance
  221. The echo effect of a headphone AMP
  222. flexy -a multirole driver/preamp-
  223. Scott 233 Bias procedure question
  224. What to do with 6DQ6B's?
  225. Goodcomponent - another chinese supplier
  226. Do EL34s in pentode mode PP AB1 sound better with lower screen voltage?
  227. Bogen MX60A as pre-amp
  228. kiwi.baby-huey. And so it begins...
  229. "sustain bias" and other organ amp ?s
  230. max current draw according to loadlines and reality
  231. Where to buy EI transformer bobbins?
  232. DHT filament circuit layouts ?
  233. After PP projects new SE project
  234. Gyrator Frequency Response?
  235. converting a dynaco mark IV driver board for headphone amp use
  236. Dared mp30
  237. PP pentode tube headphone amp PCB needed ( 6au6 thru el84)
  238. low wattage valve amps
  239. 6LU8 in Moscode 600
  240. The Octal Preamplifier with Phono section
  241. Which tube does my amp use? 12AU7 12BH7 12AX7 6CG7 others?
  242. Wacky Hum and Harmonics
  243. Constructions of ShuGang's 211 and 805A
  244. Tube ID help needed (EL34?)
  245. 5881, 6V6, EL84, or 7591 for triode-strapped operation?
  246. Strange Grounding Problem - My best guess: ghosts.
  247. High voltages
  248. PAC Perfectionist Audio Component preamp
  249. plate stoppers or cathode stoppers?
  250. Need Spud Amp schematic

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