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  1. Tube Noob question
  2. tube shop in the uk
  3. Choke question
  4. Self Bias and Fixed Bias for Big Tubes?
  5. page tubelab.com
  6. Stromberg Carlson ASR433 Question
  7. CCS better in plate or cathode
  8. Audiophile term: "HIP test"
  9. Advice needed for tweaking S5 Electronics K-12G diy kit
  10. TV Damper Diodes
  11. 813 SE circuit,will it work?
  12. Looking for tube for application
  13. Finger joints vs. screw and glue
  14. 2C36 plate curve
  15. EL34 as preamp
  16. with DHT rectifiers, is the "+" side of the power supply...
  17. Paging Unison845
  18. Quad II - Forty
  19. my amplifiers
  20. Cheap spud amp
  21. Dr. Z "Route 66"
  22. Interesting 6L6GC Test Report
  23. 4D32 SE amplifier... help!
  24. 6AS7G with grid current?
  25. bypass switch for preamp
  26. Grounded Grid vs. Aikido
  27. how to connect an EL34 pentode into a triode and 100ohm resistor between plate and g2
  28. Could this work? (PP amp with CCS)
  29. about newbies...and textbook..
  30. NFB capacitor to screen tap on ST-70 ?
  31. Aikido question
  32. Help with amp #2, 300B or 6550?
  33. Russian 807
  34. Searching Sound Valves M40 Monoblocks schematic
  35. Make: Bell P/A - Model: Carillon '35'
  36. Octal tubes for 7695-style matrix amp?
  37. SET recommendations
  38. Dynaco ST35
  39. Scott LK-72A is ALIVE
  40. 5687 as a single stage SE amp
  41. Changing two stereo amps into two monos
  42. UL Feedback Tap Calculation
  43. Precision Test Equipment tube tester
  44. Octal pentode sub for ef86?
  45. Help with guitar amp sound
  46. to mach1: tubecad regulator using tl431
  47. Thermal management: it this not really of concern?
  48. Signal phase shift through a tube amp
  49. Common-mode EI PS Chokes
  50. Signal pentode in current production
  51. Pentode vs Ultralinear
  52. Bogen CHA33/CHA33Y
  53. Sheet Metal Gauge
  54. Help with 6N6p
  55. Can anyone help, identifing selenium bridge hookup please.
  56. E182CC substitution ?
  57. Face Plate Printing and Silk Screening
  58. Funky reading 12B4A?
  59. Sovtek 5Y3 Issues
  60. from lilliput to gargantua (just for fun)
  61. Formula for calculating HT voltage?
  62. DIY Headamp for Sennheiser-650?
  63. Nuera Tube Amps
  64. Amplifier identification
  65. Perfect tube regulator
  66. Value of grid leak resistor
  67. Comments on this circuit
  68. Just grabbed this AF mesuring equipement, Any infos before restauration is Welcome
  69. Heater current monitoring...
  70. on-off switch position in PSU
  71. A better LDO heater regulator
  72. Guitar Head Amp Schematic
  73. any feedback on Russian gas regulators like SG4S and etc.?
  74. Some cathode follower questions
  75. rectifier voltage drop
  76. Anyone please explain"What is an A1,A2 in SE amp?
  77. Interesting link for guitar amps
  78. What is the correct plate voltage in this circuit?
  79. Any1 have an Osmond PCB library for tubes?
  80. best type cap for preamp PSU
  81. Steve Bench PP loadlines
  82. single Diode power supply?
  83. Spice Error
  84. Anyone have a Welborne Labs amp?
  85. Please help out a Noobie...
  86. wellborne labs
  87. best schematic designer for tubes?
  88. hum in 1 channel
  89. B+ time delay relay
  90. something is wrong with the shunt regulator
  91. Suggestions for a high end tube amp kit
  92. Conrad Johnson PV 7 problem
  93. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  94. Power supply dilemma
  95. Transformer Placement 5E3
  96. Please help: no sound and blown fuse
  97. sparking Output transformer In Webcor 14x240 Amp
  98. Designing my very first tube amp...
  99. Diode bridge for Valve Buffered GC
  100. 6S41S (6C41C) Amplifier
  101. audio research sp11 upgrade help please
  102. The good, the bad, and the ugly OTL amplifiers
  103. Z2b tube rectifier
  104. Sparks inside GZ34
  105. Help with EV4417 6cm5/EL36
  106. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  107. My Cornet2 Tube Phono Preamp
  108. bright switch to bias circuit?
  109. Regulated AC...thought some of you might be interested
  110. Aikido PSU - integrated or standalone???
  111. Frank Philipse's tube site
  112. World' smallest GM-70 set
  113. Question on output hum on tube amp?
  114. Aikido Preamp
  115. Argh!!
  116. EL84 bias point
  117. Coupling cap rating
  118. Regulated power supply
  119. outstanding book??
  120. when the datasheet says "vertical mounting: up or down", does it mean...
  121. half wave rectifier will not saturate transformer core?
  122. Did I get in over my head too soon?!?
  123. Parallel output tubes
  124. Dropping filament volts/ L-W ramblings
  125. Rogers Cadet III Power problem ?
  126. about bi-cap
  127. HOT Iron ?
  128. how to set current in G Pimm's latest self-biasing CCS circuit?
  129. Low pass active tube crossover
  130. Ecological recycling amplifier (6CU6)
  131. Need ECF80 / 6BL8 tube spice 3f4 model
  132. Capacitor above chassis
  133. PS Help
  134. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  135. Transmitter tubes
  136. Power Supply Construction
  137. what are the advantages of double core output transformers vs EI ?
  138. What is a reasonable amount ripple voltage for a 300B?
  139. "Old Like" sound transformer with a Tube !
  140. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  141. P-P resistance oddity
  142. Tube preamp vs. solid state
  143. 6l6 penthode triode
  144. Rising hum when turntable is plugged into preamp ??
  145. 6SL7 or 6SL7GT for broken Tubalizer
  146. Aikido PCB and AC filaments.
  147. Help with 300b proyect.
  148. 6P14P Amp Scratch Build
  149. 6GH8 - A Little Off?
  150. design and personality
  151. An all DHT push pull amp.
  152. Junk Pile Linestage
  153. need tube rectifier info
  154. Question on voltages
  155. How to change this design from penthode to triode or UL
  156. what glass-ware program?
  157. aikido 12b4 input 6sn7 output???
  158. GZ34 and temperature
  159. schematic search crate bv-60
  160. First Guitar Amp Help
  161. power supply for my single ended amp
  162. transmitter tube amp
  163. resistor and capacitor values for Aikido preamp
  164. need opinion on 2nd hand AF analyzers prices
  165. DH rectifier hookup.
  166. WE 310A vs. Russian 310A in WE91
  167. CRC PSU for preamp
  168. Question on the installation of LL1668 plate choke
  169. max plate voltage rating in tube datasheet
  170. Tube for a shunt voltage regulator
  171. choosing cap values for aikido
  172. Tubes in the Intermediate Stage
  173. c3m + 300b + miller capacitance
  174. How do I bias up a constant current series filament circuit?
  175. The perfect phono preamp.
  176. Got my 6BG6GA's last night
  177. Tubes4HiFi SP-6 preamp
  178. Stupid electrolytic cap question.......
  179. Shuguang 807s?
  180. LX-72A Sanity Check for Noooobie?
  181. Convert EL84 to 6V6? Anyone try this?
  182. PC96
  183. Ultrapath output transformers
  184. Grant RIAA phono with 12AX7/ECC83
  185. Tube VS SS voltage regulators - any advantages?
  186. Ra-a??
  187. Help with my el509 amp almost done but with one problem.
  188. McIntosh chassis help needed
  189. Tube Voltage Regulator Design
  190. DC Tube Amplifiers
  191. Coupling cap voltage rating
  192. Anyone experienced in the 76 tube?
  193. aikido thump
  194. bypassing preamp board in integrated amp
  195. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  196. is it really required to use carbon comp for grid stoppers?
  197. How much trickle current can fixed bias cathode batteries stand?
  198. Who is the administrator?
  199. LM329 as voltage reference in a CCS.
  200. Euridice Preamp with 5842 and LL1660
  201. Trans. alignments
  202. Audio Note M3 Kit modification
  203. Has anyone simulated an "Aikido" amplifier?
  204. Upgrading ST70 PS w/ SS question
  205. 6N1 Chinese tube and others
  206. 12AT7 Linestage design
  207. ECF80 instead of 7199
  208. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  209. 6922 vs 6SN7
  210. Transformer DCR's
  211. ferrite beads v. grid resistor
  212. What went wrong with my amp? Bass driver strange movement.
  213. Toccata Phono Preamp
  214. Drawbacks of Parafeed?
  215. aikido problem
  216. RS253 giant SE monoblock (Chinese)
  217. Plate chokes & Power chokes
  218. 10uF filter cap too small? PSU schematic inside
  219. HOT ROD DELUXE: CRACKLE...POP...what to do?
  220. converting Baldwin organ amp to guitar
  221. best amp for rock n roll
  222. quick question about tube relays
  223. Yeo's Simple EL84 with a twist
  224. ST-70 OPT, A-470 question
  225. meixing 805 tube amp problems
  226. Advice for NOOBie - Dad's Scott LK-72
  227. Peavey Valve King 112
  228. KT66 SE amp, grid current or not?
  229. 269EX in a champ?
  230. How do I achieve more output power?
  231. Driver stage load resistor
  232. More Edcor XSM10K/10K Specs
  233. DC filament
  234. driver stages
  235. Bay Area DIY is Cancelled Because....
  236. Is constant filament current better way to build amps?
  237. Next amp build - Trainwreck - Princeton - Deluxe ???
  238. Quicksilver M135 Output Transformers Color Code?
  239. Dynaco ST70 clone, tubes substitution question
  240. caddocks mk132: has anyone used them for tube projects?
  241. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  242. size of filtering caps SS vs OTL tube
  243. Current rating and tube current draw
  244. NUCLON -- My first hybrid guitar amp
  245. PP splitters again
  246. preamp with output trannies.
  247. Is it the 6SN7 or me?
  248. My Kind of Guitar Tuner
  249. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  250. Manufacture date of 6SN7s

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