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  1. small practice amp with master volume
  2. Looking for informations on Marconi TF2331 Distortion Factor Analyser
  3. gu81m
  4. 6sc7 vs. 6su7 in LTPI duty
  5. Cascode with ECC81(12AT7)=>Morgan Jones
  6. Where can I find these?
  7. Kofi Annan in: "Seven-Pound Mono Amp"
  8. Kofi Annan in: "Surf Bassin'"
  9. McIntosh Re-cap Questions
  10. 5881
  11. Cary Audio V12 - Schematic - Needed
  12. Anyone tried this method for OTL?
  13. Can't simulate 12AX7 with multisim 7
  14. new member, and some Electrohome PA100Mk1's
  15. Edcor Interstage for Phase Splitter?
  16. Why isodyne splitters not popular...
  17. Low Voltage phono stage for newbies
  18. 6EJ7 or 6EH7 triode strapped?
  19. New Guy
  20. Building a Fender 5E3 Deluxe from scratch.
  21. Counterpoint SA20 Mosfet output rail voltage
  22. Silly Chassis Punch Question...
  23. Tube Noob question
  24. tube shop in the uk
  25. Choke question
  26. Self Bias and Fixed Bias for Big Tubes?
  27. page tubelab.com
  28. Stromberg Carlson ASR433 Question
  29. CCS better in plate or cathode
  30. Audiophile term: "HIP test"
  31. Advice needed for tweaking S5 Electronics K-12G diy kit
  32. TV Damper Diodes
  33. 813 SE circuit,will it work?
  34. Looking for tube for application
  35. Finger joints vs. screw and glue
  36. 2C36 plate curve
  37. EL34 as preamp
  38. with DHT rectifiers, is the "+" side of the power supply...
  39. Paging Unison845
  40. Quad II - Forty
  41. my amplifiers
  42. Cheap spud amp
  43. Dr. Z "Route 66"
  44. Interesting 6L6GC Test Report
  45. 4D32 SE amplifier... help!
  46. 6AS7G with grid current?
  47. bypass switch for preamp
  48. Grounded Grid vs. Aikido
  49. how to connect an EL34 pentode into a triode and 100ohm resistor between plate and g2
  50. Could this work? (PP amp with CCS)
  51. about newbies...and textbook..
  52. NFB capacitor to screen tap on ST-70 ?
  53. Aikido question
  54. Help with amp #2, 300B or 6550?
  55. Russian 807
  56. Searching Sound Valves M40 Monoblocks schematic
  57. Make: Bell P/A - Model: Carillon '35'
  58. Octal tubes for 7695-style matrix amp?
  59. SET recommendations
  60. Dynaco ST35
  61. Scott LK-72A is ALIVE
  62. 5687 as a single stage SE amp
  63. Changing two stereo amps into two monos
  64. UL Feedback Tap Calculation
  65. Precision Test Equipment tube tester
  66. Octal pentode sub for ef86?
  67. Help with guitar amp sound
  68. to mach1: tubecad regulator using tl431
  69. Thermal management: it this not really of concern?
  70. Signal phase shift through a tube amp
  71. Common-mode EI PS Chokes
  72. Signal pentode in current production
  73. Pentode vs Ultralinear
  74. Bogen CHA33/CHA33Y
  75. Sheet Metal Gauge
  76. Help with 6N6p
  77. Can anyone help, identifing selenium bridge hookup please.
  78. E182CC substitution ?
  79. Face Plate Printing and Silk Screening
  80. Funky reading 12B4A?
  81. Sovtek 5Y3 Issues
  82. from lilliput to gargantua (just for fun)
  83. Formula for calculating HT voltage?
  84. DIY Headamp for Sennheiser-650?
  85. Nuera Tube Amps
  86. Amplifier identification
  87. Perfect tube regulator
  88. Value of grid leak resistor
  89. Comments on this circuit
  90. Just grabbed this AF mesuring equipement, Any infos before restauration is Welcome
  91. Heater current monitoring...
  92. on-off switch position in PSU
  93. A better LDO heater regulator
  94. Guitar Head Amp Schematic
  95. any feedback on Russian gas regulators like SG4S and etc.?
  96. Some cathode follower questions
  97. rectifier voltage drop
  98. Anyone please explain"What is an A1,A2 in SE amp?
  99. Interesting link for guitar amps
  100. What is the correct plate voltage in this circuit?
  101. Any1 have an Osmond PCB library for tubes?
  102. best type cap for preamp PSU
  103. Steve Bench PP loadlines
  104. single Diode power supply?
  105. Spice Error
  106. Anyone have a Welborne Labs amp?
  107. Please help out a Noobie...
  108. wellborne labs
  109. best schematic designer for tubes?
  110. hum in 1 channel
  111. B+ time delay relay
  112. something is wrong with the shunt regulator
  113. Suggestions for a high end tube amp kit
  114. Conrad Johnson PV 7 problem
  115. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  116. Power supply dilemma
  117. Transformer Placement 5E3
  118. Please help: no sound and blown fuse
  119. sparking Output transformer In Webcor 14x240 Amp
  120. Designing my very first tube amp...
  121. Diode bridge for Valve Buffered GC
  122. 6S41S (6C41C) Amplifier
  123. audio research sp11 upgrade help please
  124. The good, the bad, and the ugly OTL amplifiers
  125. Z2b tube rectifier
  126. Sparks inside GZ34
  127. Help with EV4417 6cm5/EL36
  128. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  129. My Cornet2 Tube Phono Preamp
  130. bright switch to bias circuit?
  131. Regulated AC...thought some of you might be interested
  132. Aikido PSU - integrated or standalone???
  133. Frank Philipse's tube site
  134. World' smallest GM-70 set
  135. Question on output hum on tube amp?
  136. Aikido Preamp
  137. Argh!!
  138. EL84 bias point
  139. Coupling cap rating
  140. Regulated power supply
  141. outstanding book??
  142. when the datasheet says "vertical mounting: up or down", does it mean...
  143. half wave rectifier will not saturate transformer core?
  144. Did I get in over my head too soon?!?
  145. Parallel output tubes
  146. Dropping filament volts/ L-W ramblings
  147. Rogers Cadet III Power problem ?
  148. about bi-cap
  149. HOT Iron ?
  150. how to set current in G Pimm's latest self-biasing CCS circuit?
  151. Low pass active tube crossover
  152. Ecological recycling amplifier (6CU6)
  153. Need ECF80 / 6BL8 tube spice 3f4 model
  154. Capacitor above chassis
  155. PS Help
  156. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  157. Transmitter tubes
  158. Power Supply Construction
  159. what are the advantages of double core output transformers vs EI ?
  160. What is a reasonable amount ripple voltage for a 300B?
  161. "Old Like" sound transformer with a Tube !
  162. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  163. P-P resistance oddity
  164. Tube preamp vs. solid state
  165. 6l6 penthode triode
  166. Rising hum when turntable is plugged into preamp ??
  167. 6SL7 or 6SL7GT for broken Tubalizer
  168. Aikido PCB and AC filaments.
  169. Help with 300b proyect.
  170. 6P14P Amp Scratch Build
  171. 6GH8 - A Little Off?
  172. design and personality
  173. An all DHT push pull amp.
  174. Junk Pile Linestage
  175. need tube rectifier info
  176. Question on voltages
  177. How to change this design from penthode to triode or UL
  178. what glass-ware program?
  179. aikido 12b4 input 6sn7 output???
  180. GZ34 and temperature
  181. schematic search crate bv-60
  182. First Guitar Amp Help
  183. power supply for my single ended amp
  184. transmitter tube amp
  185. resistor and capacitor values for Aikido preamp
  186. need opinion on 2nd hand AF analyzers prices
  187. DH rectifier hookup.
  188. WE 310A vs. Russian 310A in WE91
  189. CRC PSU for preamp
  190. Question on the installation of LL1668 plate choke
  191. max plate voltage rating in tube datasheet
  192. Tube for a shunt voltage regulator
  193. choosing cap values for aikido
  194. Tubes in the Intermediate Stage
  195. c3m + 300b + miller capacitance
  196. How do I bias up a constant current series filament circuit?
  197. The perfect phono preamp.
  198. Got my 6BG6GA's last night
  199. Tubes4HiFi SP-6 preamp
  200. Stupid electrolytic cap question.......
  201. Shuguang 807s?
  202. LX-72A Sanity Check for Noooobie?
  203. Convert EL84 to 6V6? Anyone try this?
  204. PC96
  205. Ultrapath output transformers
  206. Grant RIAA phono with 12AX7/ECC83
  207. Tube VS SS voltage regulators - any advantages?
  208. Ra-a??
  209. Help with my el509 amp almost done but with one problem.
  210. McIntosh chassis help needed
  211. Tube Voltage Regulator Design
  212. DC Tube Amplifiers
  213. Coupling cap voltage rating
  214. Anyone experienced in the 76 tube?
  215. aikido thump
  216. bypassing preamp board in integrated amp
  217. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  218. is it really required to use carbon comp for grid stoppers?
  219. How much trickle current can fixed bias cathode batteries stand?
  220. Who is the administrator?
  221. LM329 as voltage reference in a CCS.
  222. Euridice Preamp with 5842 and LL1660
  223. Trans. alignments
  224. Audio Note M3 Kit modification
  225. Has anyone simulated an "Aikido" amplifier?
  226. Upgrading ST70 PS w/ SS question
  227. 6N1 Chinese tube and others
  228. 12AT7 Linestage design
  229. ECF80 instead of 7199
  230. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  231. 6922 vs 6SN7
  232. Transformer DCR's
  233. ferrite beads v. grid resistor
  234. What went wrong with my amp? Bass driver strange movement.
  235. Toccata Phono Preamp
  236. Drawbacks of Parafeed?
  237. aikido problem
  238. RS253 giant SE monoblock (Chinese)
  239. Plate chokes & Power chokes
  240. 10uF filter cap too small? PSU schematic inside
  241. HOT ROD DELUXE: CRACKLE...POP...what to do?
  242. converting Baldwin organ amp to guitar
  243. best amp for rock n roll
  244. quick question about tube relays
  245. Yeo's Simple EL84 with a twist
  246. ST-70 OPT, A-470 question
  247. meixing 805 tube amp problems
  248. Advice for NOOBie - Dad's Scott LK-72
  249. Peavey Valve King 112
  250. KT66 SE amp, grid current or not?

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