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  1. Preamp Power and Voltage Output
  2. Anyone seen these 6L6GCs before?
  3. online transformer info for newbies
  4. High voltage pseudo-triode
  5. Yes, again: mains-powered KILLER amp without a power transformer.
  6. Quicksilver 300b monoblock (KT88 conversion)
  7. Output transformer (SE) - DIY
  8. is Gary Pimm still around?
  9. carbon composition - 2 types
  10. Input attenuation on Leak amp
  11. 101D Sockets
  12. PC86, '88 RF Amplifiers
  13. Jolida SJ-302A tube swap
  14. Inductance for tweeter OPT
  15. Help me.......What is the 6SN7 ???????
  16. high DCR secondary (power transformer)
  17. Transformer power formula Help???
  18. 2A3 OTL 800 Ohm Speaker
  19. Trying to find specs on transformer core material
  20. 12AX7 suggestions?
  21. power supply (cap input)
  22. is it safe to connect these secondaries in series?
  23. Peter Millett's Uniamp with KT88
  24. Mystery transformer
  25. Can I phase split like this?
  26. How to model psud2 using tube regulator?
  27. Choke-loaded 6C33C stage
  28. EL84 as both driver and output stage.
  29. Silvertone (Sears) stereo amp
  30. Chasing hum in a new tube amp
  31. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  32. 6bx7gt Se Amp
  33. Beard P100 Bias Lights
  34. Metasonix TS-21 modulator
  35. help with diyparadiso schematics
  36. electrostatic shield - nice to have or recommended or doesn't matter?
  37. Simple method for 240V from 240V line
  38. Audiophile bibliophilia nervosa
  39. Help with amp layout
  40. Why triode Mk3 is louder than stock Mk3
  41. Seduction or Cornet for phono???
  42. Please review my 6AQ5 Amp
  43. 832A PP Amp LTP
  44. Checklist to observe before applying the mains
  45. C3g driving 2a3: Triode or pentode?
  46. psud2 question and Fi Primer's 211 circuit
  47. Jolida JD-301A & Jadis DPL
  48. Headphones with a Tube Amp
  49. 6S3B-V Wire-Ended Single-Triode tube
  50. Anode stoppers
  51. Weird Quad II mains transformer help
  52. Mullard 5-20 parts list
  53. has anyone DIYed a Citation 2?
  54. Bogen/plexi conversion question
  55. Matched pair - different brands
  56. ERIC Mod 3460P Restore
  57. PV12 Preamplifier
  58. Grandma's old Capitol Console
  59. Music Angel
  60. What is the version of 45
  61. Aikido for guitar?
  62. Heathkit potted power transformer question
  63. Thermionic Cooling?
  64. What have the finest sound, the PX4 or the 45 ?
  65. value of a cap between driver tube and output tubes
  66. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  67. Mini EL84 Amp Done
  68. Overcoming Miller
  69. Heathkit Schematic model AA-50 needed
  70. Help me choose please
  71. Mono Class A SE Schematics
  72. Irish DIY Meet.
  73. Sizing PP OPT
  74. 6BQ5/EL90 guitar amp schematics wanted
  75. Do SE transfomers get hot?
  76. Aikido Questions
  77. LTP with interstage trafo
  78. 6BQ5 Push-Pull amplifier
  79. Amplifier input
  80. C#@$ quality 6L6EH's
  81. Mains toroids appear to be great for audio
  82. High bias point.
  83. ebay amp
  84. GU 50 output modification
  85. 6C41Cs Class-A PP
  86. My First Big Amp
  87. sv572-10
  88. Stupid PAS-2 Pot Questions
  89. Old electronics articles
  90. UL Feedback
  91. who know fd23 and fd422 tubes?
  92. Laptop amplifier
  93. Thoughts Of Modifying My First Tube Amp.
  94. Quick question for Eli Duttman (or others!)
  95. Blackened GZ32 glass envelopes
  96. Are these vintage vacuum tubes suitable.....
  97. Tube XP8109-02?!
  98. peak current 300B heater with start up
  99. Microphonic phono preamplifier
  100. Pentode Plate Load
  101. what monoblocks to build?
  102. All tube direct box
  103. max b+ for 6V6
  104. What speakers to go with tubes ??
  105. Bluenote Koala Tube CD Player
  106. OPTs and power for bi-amping
  107. Quick And Dirty ~75W Guitar Amp
  108. Old Diodes
  109. Father, I abused my Leak S/20
  110. 6688/E180F line stage?
  111. Variable feedback to enhance damping factor at low frequency
  112. Need assistance with picking the right Edcor audio transformer
  113. Critique my first design
  114. Biamping, phase of output?
  115. Ground star
  116. op-points for 27 pre...?
  117. Opinions/Experience of Toroidal valve amps
  118. hum, no way to get rid of it
  119. How to adjust my circuit for frequency response?
  120. Input Tubes?
  121. 6BG6 = 6L6GC with top cap - cheap!
  122. Maida Regulators Redux
  123. ground of DC bias supply
  124. does anyone the website for yaqin/mr. liung/music angel amps?
  125. plate load ccs ala gary p question
  126. Books for newbe
  127. 6AS7 OTL
  128. n00b phono preamp troubleshooting..
  129. TubelabSE - Anyone built?
  130. any example of SE designs using GM70?
  131. Shunt regulator question
  132. Any RH807 builders?
  133. Replacing multi-section caps with multiple caps?
  134. Recycle an Eico HFT-90 for a preamp
  135. EL84 PP output transformer for 6L6 PP class A
  136. Jensen PIO capacitor burn in
  137. toroid psu, weird results...
  138. Squeaky Noise in ARC Dual 75
  139. EL84 mod questions
  140. Measuring DC at preamp output
  141. Is Northern Electric the NEW W.E.?
  142. Burnt Woodside STA35 valve amp... Help!
  143. My tube preamplifier project
  144. Ponderings on hybrid 300B
  145. Maida Regulator Parts
  146. anyone familiar with the 211/vt4c circuit from Fi Primer?
  147. Calculating operating points of two DC stages
  148. Advice for retubing VTL Ichiban`s
  149. Need help
  150. Art Audio Kit on Common Ground Magazine
  151. Advice for retubing VTL Ichiban`s
  152. fisher 800c intermitant hum
  153. calling Yves....
  154. X10 Pre
  155. NEW KT66 - 6AU6 single ended
  156. mechanical hum
  157. Big valve preamp
  158. Question about biasing heater above cathode in a direct coupled circuit.
  159. center tapped choke inverter
  160. Guitar tube pre DIY suggestions..?
  161. Which One Of These Tube Amps Should I Buy?
  162. Tube Info
  163. Circuit/Equipment Designer
  164. help needed with noise in phono preamp
  165. Pentode driver and IT?
  166. Plate Caps for 832A
  167. 300b advice
  168. Designs on your noob, err, tube
  169. 7788 Triode Curves
  170. EL81/6CJ6 operating point
  171. Separate cathode resistors in push pull output
  172. C3m linestage
  173. Anyone know this 13E1 design...
  174. LTP w/ positive only supply
  175. 6V6 line preamp
  176. The 6P43P russian tube is a EL84 equivalent ??
  177. Ixys IXCP10M45s IC
  178. Help with hybrid mosfet valve amp
  179. Substitute for 6gw8 in Heathkit aa-32
  180. U-Follower: Output from Cathode or Plate?
  181. Getting rid of oscillations in the preamp
  182. has anyone used the 4-125A in SE amp ?
  183. line preamp using 6SN7 instead of 12AU7
  184. 3-pong conversion for Acoustic amplifier
  185. 6v6pp design
  186. CCS Plate Load
  187. All tube voltage doubler
  188. best value/performance ECC83 on market
  189. Help needed for my preamp
  190. 6H6p cascode differential driving 2A3 PP
  191. Best phono / line preamp
  192. Point to Point
  193. gain curve questions
  194. Questions concerning Aikido Line amp
  195. Partial cathode bypass to effect a treble boost.
  196. SE bass
  197. choke orientation
  198. Musical Fidelity X-PRE schematic
  199. Circuitmaker Spice question
  200. Trouble with a paraphase PI
  201. 27 pre PS question..
  202. 6AV5 g2 driver
  203. Calculate PSU output impedance?
  204. Output stage biasing, with the driver stage
  205. tube pedal plate voltages?
  206. grounding and 12AV6 diodes
  207. 6as7 Pse
  208. Looking for datasheets
  209. Ping Albert from Canada
  210. Old Tektronix booklet
  211. fisher 800c phase inverter adjustment 2
  212. Quick Transformer Question
  213. Power supply for Heathkit
  214. low-power output tube quality
  215. Conn Caprice organ
  216. Conservation of tubes
  217. Brimar EM87
  218. Tube sockets without the ceramic carrier.
  219. SET with tube-based CCS???
  220. fisher 800c modifications
  221. Bottlehead meet.
  222. Tie cathode to heater??
  223. anyone seen it tried like this?
  224. What do people think of the SETH 2A3 PP?
  225. Very high plate voltage EL34 amp
  226. How About Bridging SE
  227. Fisher 800c Has Odd Cathode Reading
  228. What part of DIY do you LOVE?
  229. Priboi tweakers ?
  230. 5751 and 12ax7
  231. LM317 + ceramic cap Q
  232. Derive Triode Curves from Pentode Curves?
  233. 7701 distortion device?
  234. Looking for the perfect giftshop
  235. 300b
  236. Choked ripple killer for SE?
  237. Dynaco Kits
  238. Positive bias for tube CF?
  239. need help
  240. Xindak attenuation for use with Leak Stereo 20, help please
  241. Series heaters = small problem?
  242. Recommend an EL84 tube for HIFI
  243. Help - need some info on this valve amp, please
  244. H. Olson's amps
  245. 12AT7 and the Simple EL84
  246. New K-12g only one channel working
  247. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  248. Rauland Borg 6L6 amp Need Info
  249. Hum Noise!
  250. Tube regulator for solidstate devices

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