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  1. 2 pairs of 8150's
  2. 8150 Tubes
  3. Capacitor/Choke value in SET buffer supply? (95 vdc B+)
  4. NJ Tube Auction
  5. pentode buffer
  6. Tube Buffer? 12ax7?
  7. What is this tube?
  8. Kits
  9. Power supply high voltage problems with Melos amp.
  10. 811A Class A2 with Power Drive
  11. Help ID this 12AX7/EL84 Console(?) Amp
  12. Eico HF-86
  13. Marantz 9 Filter CHOKE value??
  14. 10M45s: strange behaviour @ 100mA
  15. LtSpice - Russian tube models
  16. Before I buy KT88's
  17. Ultra Low Cost 6P1P Push Pull Schematic,PCB
  18. 300B SE amp: One more one
  19. Already found problem with new amp
  20. LtSpice transformer - confusion
  21. OPUS 5.0 A Modern Mullard
  22. EL34 PP New Design of newbie
  23. Somebody knows about Lorenz e84l?(real Lorenz)
  24. Aikido Heater PSU help
  25. ecc99 with which Interstage Transformer?
  26. Looking for Audio Research Caps
  27. 2A3 SE Problem
  28. One knob tone control
  29. Tube Base Application ?
  30. The no-brainer project, some questions
  31. schematic request Yarland FV34AIII
  32. SY/Pete Millett Crossover
  33. Please don't stone me. . . .
  34. Golden Tube
  35. BH Curve & OPT choices
  36. Scott Transformers
  37. Identifying transformers
  38. Need Help understanding a triode fed LTP.
  39. How to measure and adjust bias
  40. Another cheap tube amp from China
  41. where to add master volume/gain/tone to Bogen L330?
  42. Another Williamson
  43. Weird EL84 PP behavior
  44. 300B SE Design
  45. Tube/Valve Shop in BERLIN
  46. Aikido buffer/gain selector?
  47. Gaijin friendly audio shop in Tokyo area?
  48. Troubleshooting channel dropout
  49. "groundbus" is this right?
  50. About New Production Tubes
  51. suche JJ E88CC oder 6922 Sovtek in Berlin
  52. 8ohm output transformer with a 4ohm load
  53. Power transformer - good for anything?
  54. Beginner question, swap .047uf for .05uf?
  55. Tetra phono stage
  56. Japanese OPTs
  57. Changing secondary voltage (Uncivilized way)
  58. 4EH7 opinions anyone?
  59. Silvertone 45A tubes....rare variant
  60. Finished the "big one"!
  61. CV428 or 5B254M useful?
  62. How about making your own tubes?!
  63. entry level int-amp?
  64. What Cap Is This?
  65. help please with kt-88 ultralinear o/p transformer
  66. A flea thingy that sounds good
  67. Mullard vs. Williamson 60W UL PP amp. Which one?
  68. Need help with PSUD II model
  69. 5v to 2.5v for 2a3 filament
  70. Does 2A3 require a grid stopper?
  71. Hammond ECL86/6GW8 conversion
  72. Connecting two opt's to act as one.
  73. Usefullness of tubes
  74. twisted/isolated/shielded wires?
  75. Feedback question
  76. What tubes for a tube amp?
  77. SE-OPTs
  78. Phase splitting using directly heated tubes?
  79. Change EL84 from Triode to Ultra linear
  80. DC hybrid folded-cascode for Schade
  81. New UK Manufacturer of Valves
  82. Can any here explain the JHS designation?
  83. Too good to be true???
  84. Judging a tube's condition
  85. EF86 tube preamp
  86. 6EM7 SET Headamp
  87. Are these ALL really EL34 subs?
  88. parallel tubes
  89. Changing the frequency of AC from mains to lower, out of audible range???
  90. Se 6550
  91. New Suppo Audio EL34 amp
  92. 60Watt+ valve design wanted
  93. Interesting tube on e-bay for trans atlantic cable
  94. Need help solving problem on new 2A3 build
  95. Tube and Passive Preamps-Auto Transformers for Attenuators/Volume Control - Overview
  96. Where bay M6 lamination (M4,M2) metal for transformer
  97. dynamic pentode screen draw
  98. Tube Sockets
  99. Circuit Ideas for the 815 (martian tube)
  100. Old Tektronix unit, usefull?
  101. my transformer output has a center tap: what do I do with this?
  102. 6AV5GA amp?
  103. Phase splitter idea
  104. Lowering noise in small signal pentodes?
  105. Articles from the past
  106. Help for LTP/CCS plus cathode follower
  107. Conrad Johnson PV-5, my next project, some simple questions
  108. ALTEC 1566a (DiY...if)
  109. Friday Night Fun with a ST-70
  110. Aikido All-In-One Octal Heater Troubles
  111. transimpedance amplifier
  112. Jaehong Lee OTL
  113. What tube bases to support for a new tube curve tracer
  114. 6GE5 in driver service for class B P-P
  115. Replace Electrolytics?
  116. Can OT's couple?
  117. gates m-3638 preamp
  118. Oversized caps (PS and coupling) in RH84: Problem?
  119. What makes a great concertina triode?
  120. Luxman SQ5A
  121. Spice model with grid current 12ax7
  122. converting a magnavox pp 6v6 in triode mode
  123. 6V6 filaments in series
  124. my loud valve preamp
  125. Tranformer for Chinese pre amp (6N11) ?
  126. 1 watt desk speaker
  127. PE06/40 replacement
  128. Salvaged console tube reciever
  129. EF86 swap for 6BQ5 reverb?
  130. Yaqin CD3 Impressions and Internals
  131. svetlana 6D22S heater issues/question
  132. Unity-Gain EL84 Push-Pull Power Buffer
  133. Tube rectifier input capacitance
  134. Borbely hybrid Tube-MOSFET opamp
  135. Help! Tube Rolling
  136. Articles on Global Feedback
  137. Symetrical out low Zout
  138. Any Rimlock PCB sockets out there?
  139. 12SN7 Round Plate Tung Sol--is there such a thing?
  140. Vintage 2a3 tube amp
  141. Balance in CCS Long Tailed Pairs
  142. Audioromy 813 Mains Transformer
  143. Hello all, Im new from Spain, sorry for my english, and problems with my music angel
  144. use 120V x 2 for Aikido octal transformer?
  145. P-P O/P Trafo with only 2 tubes insead of 4?
  146. Eico HF-87 refurb
  147. Which SS CCS for the plate load on a 6N1P?
  148. Um, Can I do this?
  149. Eico power supply trouble (hlp plz)
  150. TV live regulator to tube preamp
  151. How to Spec Headphone output transformers
  152. Can I enlarge the mounting hole on Mosfet?
  153. Meng Yue 6P1
  154. Finding triode curves
  155. Critique my schematic 12ay7 linestage
  156. Suppresor Grid used for Feedback?
  157. Power Cascode
  158. Audio grade components
  159. Line Voltage with Yaqin MC-100B amp
  160. heater warmup and b+ delay
  161. BAL to UNBAL DAC buffer
  162. Counterpoint SA-7 - need a pic of the inside
  163. Are Chinese 6N2 the same as Russian 6N2P?
  164. New project; Musical Machine
  165. 4D32 SE amp, a few more questions
  166. Static shock with simple se
  167. Old electrolytic caps ok? MOSCODE 600
  168. Transformer Flux Band Tips and Tricks?
  169. What tube config will get this sound?
  170. On cleaning transformers
  171. My first project ELEKIT TU-870R
  172. DC7 MkII :New Schade 6080 amp.
  173. current driver tube amplifier
  174. A DC coupled headphones amp
  175. Ebay trader zhangsheng
  176. decware kits worth it?
  177. Simple test for transformer frequency response?
  178. Power Trans. Load Test
  179. Replacing Cap Across Filter Cap
  180. Regulate HV preamp with floating LM317?
  181. Rogers cadet 3
  182. Output impedance tap considerations.....
  183. Amp switch safety load
  184. MF X-10D replica problem
  185. Nice triode
  186. Low gain preamplifier
  187. Improving a Maple Tree Audio PS 2 power supply
  188. Baby Huey-ish phono?
  189. New? Local Feedback Method
  190. PSUD Help Needed: What value do I enter for current?
  191. Question on WE310
  192. How do you calculate choke size in a power supply?
  193. tubecad and tubecad se
  194. 300B amp Power Supply
  195. Adjustable internal Resonance?
  196. B+ Voltage sag for AB1 PP
  197. Maplin
  198. Preamp with an integrated amp
  199. First "boot" in 15 years
  200. Inherited these tubes. Anything interesting?
  201. What application for this tube?
  202. do I need to upgrade my heater supply to add another tube?
  203. Anyone have curves for a 2C52?
  204. tube-amplifier-shaped-usb-speaker
  205. pre-amp tubes: matching and care
  206. How to self taught about building tube amplifiers
  207. Any pretty good/bad Chinese amps?
  208. Couple idiot questions....
  209. Looking for the triode mode of Z759
  210. Couple idiot questions....
  211. push pull 45
  212. 6sj7 spice model
  213. Help finding parallel 45 SE schematic
  214. filling in the low end, 6bq5 12ax7 circuitry
  215. Dynaco Mark VI
  216. Looking for Sonic Frontiers SFS80 Schematic
  217. CCS or V.REG for OP anode
  218. Yarland FV 34CIII
  219. Damper diodes, center tapped heater, B+
  220. Dynaco ST-35 Newbie cathodyne question
  221. Anyone have valve/tube libraries for express PCB or PCB123?
  222. Looking for the Ultimate Aikido.
  223. CCS loaded DHT cathode follower?
  224. Phono stage with LT1028 MC input
  225. New valve int flash over why ?
  226. Sweep tube suggestions
  227. Amp project output problem
  228. 12AX7,6BQ5 PP Amp Search.
  229. Dynaco MkIII preamp/linestage recommendations?
  230. Can someone please check my PCB layout for this preamp?
  231. Bottlehead Filament Choke FC-1 for Push-Pull?
  232. Home James! But first, which transformer?
  233. NAD preamp = 6BQ5 Frankenschteen
  234. Wintersweet highvividity driver circuit
  235. Looking for TT11(CV1501) triode mode curve
  236. Amp switching with 4093/4066. How to add indicator LEDs?
  237. Yaqin MC-10L Blown Fuse
  238. 2a3 amp, progress picture
  239. How do I implement an AZ1 rec tube???
  240. Profit margin on used tube amps
  241. 300B sockets (different question)
  242. tri-amping question (s)
  243. Unity coupled power stage
  244. Acquired A Bunch Of Tubes
  245. Understanding load lines
  246. what would happen if.........?
  247. Testing valves/tubes
  248. 300b socket
  249. Vertical vs. Horizontal does it matter?
  250. Layout thoughts hmm....

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