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  1. Edcor Interstage for Phase Splitter?
  2. Why isodyne splitters not popular...
  3. Low Voltage phono stage for newbies
  4. 6EJ7 or 6EH7 triode strapped?
  5. New Guy
  6. Counterpoint SA20 Mosfet output rail voltage
  7. Silly Chassis Punch Question...
  8. Tube Noob question
  9. tube shop in the uk
  10. Choke question
  11. Self Bias and Fixed Bias for Big Tubes?
  12. page tubelab.com
  13. Stromberg Carlson ASR433 Question
  14. CCS better in plate or cathode
  15. Audiophile term: "HIP test"
  16. Advice needed for tweaking S5 Electronics K-12G diy kit
  17. TV Damper Diodes
  18. 813 SE circuit,will it work?
  19. Looking for tube for application
  20. Finger joints vs. screw and glue
  21. 2C36 plate curve
  22. EL34 as preamp
  23. with DHT rectifiers, is the "+" side of the power supply...
  24. Paging Unison845
  25. Quad II - Forty
  26. my amplifiers
  27. Cheap spud amp
  28. Interesting 6L6GC Test Report
  29. 4D32 SE amplifier... help!
  30. 6AS7G with grid current?
  31. bypass switch for preamp
  32. Grounded Grid vs. Aikido
  33. how to connect an EL34 pentode into a triode and 100ohm resistor between plate and g2
  34. Could this work? (PP amp with CCS)
  35. about newbies...and textbook..
  36. NFB capacitor to screen tap on ST-70 ?
  37. Aikido question
  38. Help with amp #2, 300B or 6550?
  39. Russian 807
  40. Searching Sound Valves M40 Monoblocks schematic
  41. Make: Bell P/A - Model: Carillon '35'
  42. Octal tubes for 7695-style matrix amp?
  43. SET recommendations
  44. Dynaco ST35
  45. Scott LK-72A is ALIVE
  46. 5687 as a single stage SE amp
  47. Changing two stereo amps into two monos
  48. UL Feedback Tap Calculation
  49. Precision Test Equipment tube tester
  50. Octal pentode sub for ef86?
  51. to mach1: tubecad regulator using tl431
  52. Thermal management: it this not really of concern?
  53. Signal phase shift through a tube amp
  54. Common-mode EI PS Chokes
  55. Signal pentode in current production
  56. Pentode vs Ultralinear
  57. Bogen CHA33/CHA33Y
  58. Sheet Metal Gauge
  59. Help with 6N6p
  60. Can anyone help, identifing selenium bridge hookup please.
  61. E182CC substitution ?
  62. Face Plate Printing and Silk Screening
  63. Funky reading 12B4A?
  64. Sovtek 5Y3 Issues
  65. from lilliput to gargantua (just for fun)
  66. Formula for calculating HT voltage?
  67. DIY Headamp for Sennheiser-650?
  68. Nuera Tube Amps
  69. Amplifier identification
  70. Perfect tube regulator
  71. Value of grid leak resistor
  72. Comments on this circuit
  73. Just grabbed this AF mesuring equipement, Any infos before restauration is Welcome
  74. Heater current monitoring...
  75. on-off switch position in PSU
  76. A better LDO heater regulator
  77. any feedback on Russian gas regulators like SG4S and etc.?
  78. Some cathode follower questions
  79. Anyone please explain"What is an A1,A2 in SE amp?
  80. What is the correct plate voltage in this circuit?
  81. Any1 have an Osmond PCB library for tubes?
  82. best type cap for preamp PSU
  83. Steve Bench PP loadlines
  84. Spice Error
  85. Anyone have a Welborne Labs amp?
  86. Please help out a Noobie...
  87. wellborne labs
  88. best schematic designer for tubes?
  89. hum in 1 channel
  90. B+ time delay relay
  91. something is wrong with the shunt regulator
  92. Suggestions for a high end tube amp kit
  93. Conrad Johnson PV 7 problem
  94. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  95. Please help: no sound and blown fuse
  96. sparking Output transformer In Webcor 14x240 Amp
  97. Designing my very first tube amp...
  98. Diode bridge for Valve Buffered GC
  99. 6S41S (6C41C) Amplifier
  100. audio research sp11 upgrade help please
  101. The good, the bad, and the ugly OTL amplifiers
  102. Z2b tube rectifier
  103. Sparks inside GZ34
  104. Help with EV4417 6cm5/EL36
  105. My Cornet2 Tube Phono Preamp
  106. bright switch to bias circuit?
  107. Regulated AC...thought some of you might be interested
  108. Aikido PSU - integrated or standalone???
  109. Frank Philipse's tube site
  110. World' smallest GM-70 set
  111. Question on output hum on tube amp?
  112. Aikido Preamp
  113. Argh!!
  114. EL84 bias point
  115. Coupling cap rating
  116. outstanding book??
  117. when the datasheet says "vertical mounting: up or down", does it mean...
  118. Did I get in over my head too soon?!?
  119. Parallel output tubes
  120. Dropping filament volts/ L-W ramblings
  121. Rogers Cadet III Power problem ?
  122. about bi-cap
  123. HOT Iron ?
  124. how to set current in G Pimm's latest self-biasing CCS circuit?
  125. Low pass active tube crossover
  126. Ecological recycling amplifier (6CU6)
  127. Need ECF80 / 6BL8 tube spice 3f4 model
  128. Capacitor above chassis
  129. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  130. Transmitter tubes
  131. what are the advantages of double core output transformers vs EI ?
  132. What is a reasonable amount ripple voltage for a 300B?
  133. "Old Like" sound transformer with a Tube !
  134. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  135. P-P resistance oddity
  136. Tube preamp vs. solid state
  137. 6l6 penthode triode
  138. Rising hum when turntable is plugged into preamp ??
  139. 6SL7 or 6SL7GT for broken Tubalizer
  140. Aikido PCB and AC filaments.
  141. Help with 300b proyect.
  142. 6P14P Amp Scratch Build
  143. 6GH8 - A Little Off?
  144. design and personality
  145. An all DHT push pull amp.
  146. Junk Pile Linestage
  147. need tube rectifier info
  148. Question on voltages
  149. How to change this design from penthode to triode or UL
  150. what glass-ware program?
  151. aikido 12b4 input 6sn7 output???
  152. GZ34 and temperature
  153. transmitter tube amp
  154. resistor and capacitor values for Aikido preamp
  155. need opinion on 2nd hand AF analyzers prices
  156. DH rectifier hookup.
  157. WE 310A vs. Russian 310A in WE91
  158. Question on the installation of LL1668 plate choke
  159. max plate voltage rating in tube datasheet
  160. choosing cap values for aikido
  161. Tubes in the Intermediate Stage
  162. c3m + 300b + miller capacitance
  163. How do I bias up a constant current series filament circuit?
  164. The perfect phono preamp.
  165. Got my 6BG6GA's last night
  166. Tubes4HiFi SP-6 preamp
  167. Shuguang 807s?
  168. LX-72A Sanity Check for Noooobie?
  169. Convert EL84 to 6V6? Anyone try this?
  170. PC96
  171. Ultrapath output transformers
  172. Grant RIAA phono with 12AX7/ECC83
  173. Ra-a??
  174. Help with my el509 amp almost done but with one problem.
  175. McIntosh chassis help needed
  176. Tube Voltage Regulator Design
  177. DC Tube Amplifiers
  178. Coupling cap voltage rating
  179. Anyone experienced in the 76 tube?
  180. aikido thump
  181. bypassing preamp board in integrated amp
  182. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  183. is it really required to use carbon comp for grid stoppers?
  184. How much trickle current can fixed bias cathode batteries stand?
  185. LM329 as voltage reference in a CCS.
  186. Euridice Preamp with 5842 and LL1660
  187. Trans. alignments
  188. Audio Note M3 Kit modification
  189. Has anyone simulated an "Aikido" amplifier?
  190. 6N1 Chinese tube and others
  191. 12AT7 Linestage design
  192. ECF80 instead of 7199
  193. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  194. 6922 vs 6SN7
  195. Transformer DCR's
  196. ferrite beads v. grid resistor
  197. What went wrong with my amp? Bass driver strange movement.
  198. Toccata Phono Preamp
  199. Drawbacks of Parafeed?
  200. aikido problem
  201. RS253 giant SE monoblock (Chinese)
  202. Plate chokes & Power chokes
  203. best amp for rock n roll
  204. quick question about tube relays
  205. Yeo's Simple EL84 with a twist
  206. ST-70 OPT, A-470 question
  207. meixing 805 tube amp problems
  208. Advice for NOOBie - Dad's Scott LK-72
  209. KT66 SE amp, grid current or not?
  210. How do I achieve more output power?
  211. Driver stage load resistor
  212. More Edcor XSM10K/10K Specs
  213. DC filament
  214. driver stages
  215. Bay Area DIY is Cancelled Because....
  216. Is constant filament current better way to build amps?
  217. Next amp build - Trainwreck - Princeton - Deluxe ???
  218. Quicksilver M135 Output Transformers Color Code?
  219. Dynaco ST70 clone, tubes substitution question
  220. caddocks mk132: has anyone used them for tube projects?
  221. Current rating and tube current draw
  222. PP splitters again
  223. preamp with output trannies.
  224. Is it the 6SN7 or me?
  225. Manufacture date of 6SN7s
  226. simple 12AU7 cathode follower
  227. How's your bench, what's your favorite setup/tool ?
  228. Siemens H42 AM/FM receiver circuit diagram?
  229. 429A load lines
  230. Mu-stage on output
  231. My new project, 2 x KT88 60W amp
  232. Tube Amp Hum
  233. Modding MEIXING MC 3008
  234. Will this work for an EL84 push pull?
  235. "Integrated" or "stand alone"
  236. Heater to cathode voltage limits in cascodes???
  237. some Japanese can help me? (OPT trafo winding)
  238. Quicksilver 8417 a class C amp?
  239. Newcomer, where to start?
  240. Benefits of Potted Output Transformers
  241. Transformer question
  242. 6AW6A, Unloaded
  243. Aikido PSU help
  244. Plate to Cathode Cap -- what's this??
  245. Need Help Understanding/Optimising a Schematic
  246. Simple basic question quick
  247. problem on thorens PR15 (strange filaments circuity)
  248. My 1W 5687 SE Direct Coupled Power Amp
  249. VT-25 linestage + step-down trafo
  250. What to do with 803's

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