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  1. Bogen CHB-35 - guitar tube amp conversion (another)
  2. Help me identify these Caps! (hamfest find)
  3. nM scale Valves
  4. Orientation of E-I core OPT and toroidal power transformer
  5. Baldwin Iron
  6. Carver super 7
  7. Question:disadvantages for using a SE OPT on parafeed?
  8. CF after gain stage
  9. New to Tubes, just bought first tube amp
  10. Sonic Frontiers SFP-1 mods?
  11. AES tube brand mixing..
  12. Hum with EL84 Push-Pull
  13. Low Voltage Tube Preamplifier
  14. 27 driving 2A3/45/ or 300B
  15. Tube pre-amp for a vehicle?
  16. Meng Yue Mini schematic?
  17. Do you know this guy?
  18. Triode Pentode combo tubes
  19. M8136 M8137 Mullard
  20. suppo with vinyl?
  21. small binding post for TT ground
  22. 27 Filaments DC in series
  23. Music Angel KT88 hard wired
  24. Nice! First CCS.
  25. bizarre bias, ST-70 experts step inside
  26. hammond power tx 200series update
  27. Volts D.C. panel meter for B+
  28. What is the best tube amp??
  29. 6GM8 Hickok test settings?
  30. NASA space-age tube for audio use
  31. trouble matching line level to guitar amp input level...any help?
  32. ECL86/6GW8 Console opinions
  33. Bad tubes wanted for tester testing
  34. 7868 tube biasing and output trans protection
  35. second build, recommendations , thoughts
  36. Changing Electra-Print DRD45
  37. ruTubes.com. Anyone dealt with them?
  38. output transformer manufacturer
  39. no resistor values........
  40. Gz34 + otl 6n23p
  41. Jukebox Iron
  42. converting tube rectifier to solid state rectifier.
  43. Help please, Jolida 202a hum.
  44. Amperex Bugle Boy tube???
  45. What's a reasonable amount of power-supply ripple?
  46. Vintage tube amp Aux In To CD In
  47. mounting TO-220 devices
  48. My first valve amp - help appreciated :)
  49. Plasma ball in tube
  50. Nagra's engineers at work.
  51. what just happened? Plate glowing
  52. "Mullard 5-20 KT88 PP blocks!
  53. CCS transistor choices
  54. Simple SE parts "Kit"
  55. capacitor upgrade on my tube phono stage
  56. Microphone Preamp
  57. 6N2 swap
  58. K12M / K12G Current Draw
  59. Best china amp?
  60. Hagtech Clarion 2A3 SET
  61. Tubelab Simple SE Schematic
  62. new idea for a tube power amp
  63. help choose between two preamps
  64. Need a MC phono stage, do i need a pre as well?
  65. What the difference between 7591a & 7868
  66. High Voltage Huge Storage CAPS for that Ultimate Valve Amp
  67. Need a good phono stage design..
  68. getting a pop when i power down, help
  69. Japan vs US output tx
  70. My own RIAA tube preamp
  71. Tube-I-zator SRPP DAC I/V-Stage circuit discussions
  72. Lab Power Supply
  73. diy MESA pre as 3rd channel on guitar amp? - Need Advise!
  74. Learning to measure question
  75. Anyone using silver secondary (or PSSS) output tx
  76. Cary audio design CAD-211
  77. mains overvoltage what to do?
  78. Looking Schematic converting Volume pot to Digital Vol for tube amp.
  79. Jean Hiraga SE Amplifier Power Supply
  80. TubeLab SE, Finally
  81. channel imbalance!!!! need help
  82. ESRC Dollar Sale - Going, Going...
  83. Post pics of your glowing tubes
  84. PCB Layout for tube amp
  85. 530V low-ish dropout regulator?
  86. were can i get transformers from
  87. 6N9P data sheet
  88. Newbie questions - RH84 mods
  89. TriodeElectronics Mk3 for rank noob?
  90. 5718 preamp
  91. 12B4 the pre for me?
  92. Anyone used C3G to drive a 2A3 before?
  93. Cascode Tube Mic Preamp: 12AX7/12AU7 Schematic
  94. Bogen MX60A Schematics
  95. Nasty pop when I power down
  96. Timer for tube hours
  97. Personal Tube Amp DIY Project
  98. Common cathode linestage with 6080
  99. Fingernail polish?
  100. Tube Lab Simple SE with interstage transformer
  101. Wintersweet HighVividity Amplifer finalized
  102. Iron loaded preamp, any thoughts?
  103. Tetra Phono Preamp as a DAC analog stage
  104. EL84 Plate Dissipation
  105. bogen m330a -> 5f6a bassman
  106. 12AU7 Amp?
  107. Toroidal Chokes
  108. Using a voltage converter transformer
  109. Regulated PSU question
  110. please help me change this
  111. Stromberg-Carlson Identification Help
  112. pi filter variations
  113. How do I change this design from EL34 to 6L6?
  114. Sun Audio SV-300B MKII DIY
  115. 230-115V step down transformer earthing
  116. PP oscillation problem
  117. Wiring a DPDT for direct in & 2-100k mono pots ..?
  118. Arion "ADONIS" Schematics Request
  119. Phono Stage my first try
  120. Maximum gain with 6SN7 ?
  121. Rca 6md8
  122. Getting the DIYer blues again.
  123. EL34 B review Tung-Sol
  124. Please help with my first valve preamp ?
  125. power supply filter choke current rating.
  126. Will and Aikido Driver Stage work?
  127. Bottlehead Foreplay III improvements, suggestions, alternatives?
  128. DC modules fot DHT amps....too expensive to buy pre-built, why not DIY them?
  129. Sprague 183P Question
  130. Load Resistance (Ra) question applied to OTs
  131. B&K 610 connector pinout
  132. Buzzing Volume and presence
  133. 807 pp build project - whose in?
  134. tubelab simple se: increasing the drive
  135. where to buy dn2540 and 10m45 in UK
  136. ecc88 arcing at shutdown problem...
  137. Question - Output Trafo with CFB
  138. Tubelab SE rect. arcing -looking for more info
  139. Looking for a hookup wire supplier
  140. Valves' world
  141. Tube diode for cathode bias?
  142. Trying to get a response from TX maker.pass it on.
  143. Need help choosing a filament supply
  144. Motorola 3 channel Tube Amp from Console
  145. Most compact 90V power supply
  146. Decware output stage
  147. 50FE5-push pull stereo
  148. tamura f-7000 series
  149. Very simple high power single ended
  150. CAD for tubes?
  151. Which tubes are lowest noise?
  152. Stacking/paralleling caps - same value?
  153. where to get good 5AR4 's
  154. Greetings from ETF!
  155. 26 Preamp, Kennedy Version 3
  156. 2chanell PCL86-PP "tube buster" for guitar
  157. Roederstein replacements?
  158. Playin' with feedback
  159. schematic yaqin cd1 tube buffer
  160. Tubelab Simple SE questions
  161. tube preamp
  162. Filament current bias
  163. What Transformer is better ??
  164. DC-coupled CF driver pentode help!
  165. HHScott Forum?
  166. Delay relay
  167. Amp Gain Design Philosophy
  168. Converting a Stromberg Carlson AU-35 into a Bass guitar amp?
  169. Greetings - Watt Calculation
  170. AES Chocolates?
  171. Power supply filters - sim results
  172. Q............PP Ultrapath
  173. formula help
  174. DAC -> Amp with parallelled E182CC and Lundahl transformers -> 8ohm headphones
  175. Need an HV trafo? Try these:
  176. Driver for Musical Fidelity 550K
  177. Yaqin MC-10l
  178. help with 2 stage cathode follower
  179. B&K 747 tube tester
  180. Screen glowing?
  181. Grid 2 voltage affects
  182. Simple Tube Mono Block Tube Amp Schematic
  183. Optimizing a 807 PP amplifiers input stage and phase splitter...
  184. Chassis Layout Advice
  185. strange Stromberg Carlson
  186. lifting the earth
  187. passive xover w/ SET?
  188. Low gain tube amp?
  189. What to do with these parts?
  190. Regulated Heater on the 6SN7 Aikido Plate to Heater question
  191. SRPP with buffer - 1MOhm impedance?
  192. PSUD2 & g2 on 807 problem..?
  193. 230V transformer for a 832 PP project
  194. Mercury vapour rectifier for George
  195. Replacing 6L6 with 6V6: what changes needed?
  196. 4 tube line level pre?
  197. Tube Hybrid Amp Gain Calculation
  198. transformer coupled plate follower
  199. What does your system look like?
  200. Cascoding tubes
  201. Advice with modification of Beard power amp
  202. Harman Kardon TA5000-X power XFMR
  203. This happens when you hire a good designer.
  204. Test & Measurement interface for Soundcard
  205. Where to find large capacity high voltage caps?
  206. 1st Pass at 1st Phono Preamp; Comments?
  207. Transformers to try.
  208. Hum in phono pre - help please
  209. Output transformer cores
  210. Output transformer cores
  211. Presonus Bluetube makeover
  212. Tube Amp Channel Switching
  213. physically small twin triode tube
  214. Tubelab SE 2A3 _ Newbie question.
  215. TJ Full Music Factory Tour Now Online
  216. where to find cool vol control knobs?
  217. $200 6V6 Amp
  218. Audio Research Reference Phono, anyone?
  219. Review of Suppo Audio's first offering - EL84 Push Pull
  220. 6n23p(-ev)
  221. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  222. TUBE AMP 1946 worth grabbing?
  223. SE Newbie wants to go level 2
  224. Where To Purchase Tube Amp Parts in the UK
  225. The soul of a new "electrostatic" machine
  226. Transformer question
  227. Hybrid caps
  228. 6021 phono pre-amp
  229. bandmaster ab763 fx loop
  230. How to design input stage with specific input impedance/pot value
  231. Simple SE Grounding Question
  232. James OPT connections?
  233. DIY rtp5 help please?
  234. SS Followers to drive power tubes
  235. Sophia Electric EL34 Schematic
  236. DRD amplifier with CCS?
  237. Phono Preamp
  238. Dynaco ST-70 with a GSI board, Parts diagram and any info PLEASE
  239. transistor AC blocker
  240. PL519 Source
  241. Identify this mullard
  242. Suppo Audio -- New Chinese EL84 PP amp for CHEAP.
  243. Beard p35mkII schematics/photo photo
  244. Bias transformer question
  245. Anyone deliberately dial in 2nd harmonic?
  246. What is the sonic impact of SS CCS in tube equipment
  247. Phase help
  248. El34-kt88
  249. Transconductance amplifier based on hybrid cascode
  250. Chinese 6Z4, also those regulated supplies.

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