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  1. Removing LEDs from chinese amp
  2. Project madness
  3. chinese and tube Depot amps?
  4. eml 520 v2 info
  5. Gibson GA20 schematic needed
  6. Potted Transformer Enclosure Suppliers?
  7. Rogers Cadet III Phono Stage
  8. Modding Roberts/Akai mono block tube amps
  9. Full-wave bridge
  10. Output transformers and frequency response
  11. Class A2 SET using source follower driver
  12. Rectifier that drops lots of volts?
  13. switch snubber on preamp
  14. HV supply please comment before building
  15. This is cool
  16. Gold Lion KT88 Reissues
  17. 6F8G's any good?
  18. Matching capacitors
  19. Tung-Sol (new production) 6550s
  20. Curves, curves, and more curves
  21. Help for new design..
  22. OTL SE - Help Wanted with Idea
  23. OPTs causing crosstalk?
  24. KT88 Usable range
  25. How to change tubes ??? (NEWBIE)
  26. Do I need a Trafo for the HV in my 12AU7 (ECC82)?
  27. Need some help with potentiometer.
  28. Pinout of a UTC CG-422 power transformer
  29. Simple EL34 SET; advice?
  30. Popping Noise = Clipping ?
  31. PSU for an 813 SE
  32. Single Stage Line Amp (Diff Amp) Tube?
  33. EL 84 Edicron UK vs JJ
  34. calculating HF rolloff at 20kHz from input impedance
  35. Need info on RCA 813 used in Tube Amp
  36. Baby Huey: shunt feedback doesn't work to me
  37. Audio Innovations 800mkiii output trans needed
  38. High voltage psu
  39. First tubeamp, dont laugh too hard
  40. Newbie building d3A DRD 300B
  41. small practice amp with master volume
  42. Looking for informations on Marconi TF2331 Distortion Factor Analyser
  43. gu81m
  44. 6sc7 vs. 6su7 in LTPI duty
  45. Cascode with ECC81(12AT7)=>Morgan Jones
  46. Where can I find these?
  47. Kofi Annan in: "Seven-Pound Mono Amp"
  48. Kofi Annan in: "Surf Bassin'"
  49. McIntosh Re-cap Questions
  50. 5881
  51. Cary Audio V12 - Schematic - Needed
  52. Anyone tried this method for OTL?
  53. Can't simulate 12AX7 with multisim 7
  54. new member, and some Electrohome PA100Mk1's
  55. Edcor Interstage for Phase Splitter?
  56. Why isodyne splitters not popular...
  57. Low Voltage phono stage for newbies
  58. 6EJ7 or 6EH7 triode strapped?
  59. New Guy
  60. Counterpoint SA20 Mosfet output rail voltage
  61. Silly Chassis Punch Question...
  62. Tube Noob question
  63. tube shop in the uk
  64. Choke question
  65. Self Bias and Fixed Bias for Big Tubes?
  66. page tubelab.com
  67. Stromberg Carlson ASR433 Question
  68. CCS better in plate or cathode
  69. Audiophile term: "HIP test"
  70. Advice needed for tweaking S5 Electronics K-12G diy kit
  71. TV Damper Diodes
  72. 813 SE circuit,will it work?
  73. Looking for tube for application
  74. Finger joints vs. screw and glue
  75. 2C36 plate curve
  76. EL34 as preamp
  77. with DHT rectifiers, is the "+" side of the power supply...
  78. Paging Unison845
  79. Quad II - Forty
  80. my amplifiers
  81. Cheap spud amp
  82. Dr. Z "Route 66"
  83. Interesting 6L6GC Test Report
  84. 4D32 SE amplifier... help!
  85. 6AS7G with grid current?
  86. bypass switch for preamp
  87. Grounded Grid vs. Aikido
  88. how to connect an EL34 pentode into a triode and 100ohm resistor between plate and g2
  89. Could this work? (PP amp with CCS)
  90. about newbies...and textbook..
  91. NFB capacitor to screen tap on ST-70 ?
  92. Aikido question
  93. Help with amp #2, 300B or 6550?
  94. Russian 807
  95. Searching Sound Valves M40 Monoblocks schematic
  96. Make: Bell P/A - Model: Carillon '35'
  97. Octal tubes for 7695-style matrix amp?
  98. SET recommendations
  99. Dynaco ST35
  100. Scott LK-72A is ALIVE
  101. 5687 as a single stage SE amp
  102. Changing two stereo amps into two monos
  103. UL Feedback Tap Calculation
  104. Precision Test Equipment tube tester
  105. Octal pentode sub for ef86?
  106. Help with guitar amp sound
  107. to mach1: tubecad regulator using tl431
  108. Thermal management: it this not really of concern?
  109. Signal phase shift through a tube amp
  110. Common-mode EI PS Chokes
  111. Signal pentode in current production
  112. Pentode vs Ultralinear
  113. Bogen CHA33/CHA33Y
  114. Sheet Metal Gauge
  115. Help with 6N6p
  116. Can anyone help, identifing selenium bridge hookup please.
  117. E182CC substitution ?
  118. Face Plate Printing and Silk Screening
  119. Funky reading 12B4A?
  120. Sovtek 5Y3 Issues
  121. from lilliput to gargantua (just for fun)
  122. Formula for calculating HT voltage?
  123. DIY Headamp for Sennheiser-650?
  124. Nuera Tube Amps
  125. Amplifier identification
  126. Perfect tube regulator
  127. Value of grid leak resistor
  128. Comments on this circuit
  129. Just grabbed this AF mesuring equipement, Any infos before restauration is Welcome
  130. Heater current monitoring...
  131. on-off switch position in PSU
  132. A better LDO heater regulator
  133. Guitar Head Amp Schematic
  134. any feedback on Russian gas regulators like SG4S and etc.?
  135. Some cathode follower questions
  136. rectifier voltage drop
  137. Anyone please explain"What is an A1,A2 in SE amp?
  138. Interesting link for guitar amps
  139. What is the correct plate voltage in this circuit?
  140. Any1 have an Osmond PCB library for tubes?
  141. best type cap for preamp PSU
  142. Steve Bench PP loadlines
  143. single Diode power supply?
  144. Spice Error
  145. Anyone have a Welborne Labs amp?
  146. Please help out a Noobie...
  147. wellborne labs
  148. best schematic designer for tubes?
  149. hum in 1 channel
  150. B+ time delay relay
  151. something is wrong with the shunt regulator
  152. Suggestions for a high end tube amp kit
  153. Conrad Johnson PV 7 problem
  154. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  155. Power supply dilemma
  156. Transformer Placement 5E3
  157. Please help: no sound and blown fuse
  158. sparking Output transformer In Webcor 14x240 Amp
  159. Designing my very first tube amp...
  160. Diode bridge for Valve Buffered GC
  161. 6S41S (6C41C) Amplifier
  162. audio research sp11 upgrade help please
  163. The good, the bad, and the ugly OTL amplifiers
  164. Z2b tube rectifier
  165. Sparks inside GZ34
  166. Help with EV4417 6cm5/EL36
  167. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  168. My Cornet2 Tube Phono Preamp
  169. bright switch to bias circuit?
  170. Regulated AC...thought some of you might be interested
  171. Aikido PSU - integrated or standalone???
  172. Frank Philipse's tube site
  173. World' smallest GM-70 set
  174. Question on output hum on tube amp?
  175. Aikido Preamp
  176. Argh!!
  177. EL84 bias point
  178. Coupling cap rating
  179. Regulated power supply
  180. outstanding book??
  181. when the datasheet says "vertical mounting: up or down", does it mean...
  182. half wave rectifier will not saturate transformer core?
  183. Did I get in over my head too soon?!?
  184. Parallel output tubes
  185. Dropping filament volts/ L-W ramblings
  186. Rogers Cadet III Power problem ?
  187. about bi-cap
  188. HOT Iron ?
  189. how to set current in G Pimm's latest self-biasing CCS circuit?
  190. Low pass active tube crossover
  191. Ecological recycling amplifier (6CU6)
  192. Need ECF80 / 6BL8 tube spice 3f4 model
  193. Capacitor above chassis
  194. PS Help
  195. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  196. Transmitter tubes
  197. Power Supply Construction
  198. what are the advantages of double core output transformers vs EI ?
  199. What is a reasonable amount ripple voltage for a 300B?
  200. "Old Like" sound transformer with a Tube !
  201. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  202. P-P resistance oddity
  203. Tube preamp vs. solid state
  204. 6l6 penthode triode
  205. Rising hum when turntable is plugged into preamp ??
  206. 6SL7 or 6SL7GT for broken Tubalizer
  207. Aikido PCB and AC filaments.
  208. Help with 300b proyect.
  209. 6P14P Amp Scratch Build
  210. 6GH8 - A Little Off?
  211. design and personality
  212. An all DHT push pull amp.
  213. Junk Pile Linestage
  214. need tube rectifier info
  215. Question on voltages
  216. How to change this design from penthode to triode or UL
  217. what glass-ware program?
  218. aikido 12b4 input 6sn7 output???
  219. GZ34 and temperature
  220. schematic search crate bv-60
  221. First Guitar Amp Help
  222. power supply for my single ended amp
  223. transmitter tube amp
  224. resistor and capacitor values for Aikido preamp
  225. need opinion on 2nd hand AF analyzers prices
  226. DH rectifier hookup.
  227. WE 310A vs. Russian 310A in WE91
  228. CRC PSU for preamp
  229. Question on the installation of LL1668 plate choke
  230. max plate voltage rating in tube datasheet
  231. Tube for a shunt voltage regulator
  232. choosing cap values for aikido
  233. Tubes in the Intermediate Stage
  234. c3m + 300b + miller capacitance
  235. How do I bias up a constant current series filament circuit?
  236. The perfect phono preamp.
  237. Got my 6BG6GA's last night
  238. Tubes4HiFi SP-6 preamp
  239. Stupid electrolytic cap question.......
  240. Shuguang 807s?
  241. LX-72A Sanity Check for Noooobie?
  242. Convert EL84 to 6V6? Anyone try this?
  243. PC96
  244. Ultrapath output transformers
  245. Grant RIAA phono with 12AX7/ECC83
  246. Tube VS SS voltage regulators - any advantages?
  247. Ra-a??
  248. Help with my el509 amp almost done but with one problem.
  249. McIntosh chassis help needed
  250. Tube Voltage Regulator Design

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