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  1. 12SN7 Round Plate Tung Sol--is there such a thing?
  2. Vintage 2a3 tube amp
  3. Balance in CCS Long Tailed Pairs
  4. Audioromy 813 Mains Transformer
  5. Hello all, Im new from Spain, sorry for my english, and problems with my music angel
  6. use 120V x 2 for Aikido octal transformer?
  7. P-P O/P Trafo with only 2 tubes insead of 4?
  8. Eico HF-87 refurb
  9. Which SS CCS for the plate load on a 6N1P?
  10. Um, Can I do this?
  11. Eico power supply trouble (hlp plz)
  12. TV live regulator to tube preamp
  13. How to Spec Headphone output transformers
  14. Can I enlarge the mounting hole on Mosfet?
  15. Meng Yue 6P1
  16. Finding triode curves
  17. Critique my schematic 12ay7 linestage
  18. Suppresor Grid used for Feedback?
  19. Power Cascode
  20. Audio grade components
  21. Line Voltage with Yaqin MC-100B amp
  22. heater warmup and b+ delay
  23. BAL to UNBAL DAC buffer
  24. Counterpoint SA-7 - need a pic of the inside
  25. Are Chinese 6N2 the same as Russian 6N2P?
  26. New project; Musical Machine
  27. 4D32 SE amp, a few more questions
  28. Static shock with simple se
  29. Old electrolytic caps ok? MOSCODE 600
  30. Transformer Flux Band Tips and Tricks?
  31. What tube config will get this sound?
  32. On cleaning transformers
  33. My first project ELEKIT TU-870R
  34. DC7 MkII :New Schade 6080 amp.
  35. current driver tube amplifier
  36. A DC coupled headphones amp
  37. Ebay trader zhangsheng
  38. decware kits worth it?
  39. Simple test for transformer frequency response?
  40. Power Trans. Load Test
  41. Replacing Cap Across Filter Cap
  42. Regulate HV preamp with floating LM317?
  43. Rogers cadet 3
  44. Output impedance tap considerations.....
  45. Amp switch safety load
  46. MF X-10D replica problem
  47. Nice triode
  48. Low gain preamplifier
  49. Improving a Maple Tree Audio PS 2 power supply
  50. Baby Huey-ish phono?
  51. New? Local Feedback Method
  52. PSUD Help Needed: What value do I enter for current?
  53. Question on WE310
  54. How do you calculate choke size in a power supply?
  55. tubecad and tubecad se
  56. 300B amp Power Supply
  57. Adjustable internal Resonance?
  58. B+ Voltage sag for AB1 PP
  59. Maplin
  60. Preamp with an integrated amp
  61. First "boot" in 15 years
  62. Inherited these tubes. Anything interesting?
  63. What application for this tube?
  64. do I need to upgrade my heater supply to add another tube?
  65. Anyone have curves for a 2C52?
  66. tube-amplifier-shaped-usb-speaker
  67. pre-amp tubes: matching and care
  68. How to self taught about building tube amplifiers
  69. Any pretty good/bad Chinese amps?
  70. Couple idiot questions....
  71. Looking for the triode mode of Z759
  72. Couple idiot questions....
  73. push pull 45
  74. 6sj7 spice model
  75. Help finding parallel 45 SE schematic
  76. filling in the low end, 6bq5 12ax7 circuitry
  77. Dynaco Mark VI
  78. Looking for Sonic Frontiers SFS80 Schematic
  79. CCS or V.REG for OP anode
  80. Yarland FV 34CIII
  81. Damper diodes, center tapped heater, B+
  82. Dynaco ST-35 Newbie cathodyne question
  83. Anyone have valve/tube libraries for express PCB or PCB123?
  84. Looking for the Ultimate Aikido.
  85. CCS loaded DHT cathode follower?
  86. Phono stage with LT1028 MC input
  87. New valve int flash over why ?
  88. Sweep tube suggestions
  89. Amp project output problem
  90. 12AX7,6BQ5 PP Amp Search.
  91. Dynaco MkIII preamp/linestage recommendations?
  92. Can someone please check my PCB layout for this preamp?
  93. Bottlehead Filament Choke FC-1 for Push-Pull?
  94. Home James! But first, which transformer?
  95. NAD preamp = 6BQ5 Frankenschteen
  96. Wintersweet highvividity driver circuit
  97. Looking for TT11(CV1501) triode mode curve
  98. Amp switching with 4093/4066. How to add indicator LEDs?
  99. Yaqin MC-10L Blown Fuse
  100. 2a3 amp, progress picture
  101. How do I implement an AZ1 rec tube???
  102. Profit margin on used tube amps
  103. 300B sockets (different question)
  104. tri-amping question (s)
  105. Unity coupled power stage
  106. Acquired A Bunch Of Tubes
  107. Understanding load lines
  108. what would happen if.........?
  109. Testing valves/tubes
  110. 300b socket
  111. Vertical vs. Horizontal does it matter?
  112. Layout thoughts hmm....
  113. ID request, is this a pre?
  114. Anyone got any info on the Tippatone 500 watt amps?
  115. SMPS for Filaments?
  116. Using 6n6pi Push and Pull
  117. Optimum Tube Temperature
  118. Chassis
  119. 5670
  120. will this spice works in real word?
  121. An amplifier for Burning Man
  122. 12AT7,12AU7 Ultra linear cascode
  123. El Cheapo Grande
  124. EL84 Unused pins safe to connect?
  125. 6BQ5/EL84 tube buffer questions
  126. How much power do I need?
  127. Tube buffer/preamp. Where to place voltage divider?
  128. Schematic wanted for VTL Preamp "Maximal"
  129. modified GEC 88-50
  130. Zenith 7B31 Help
  131. Do swingers always buzz when they swing?
  132. 6at6 tube? What can i use it for?
  133. Sovtek 6550WA?
  134. how to make a tube gyrator eq?
  135. Transformer needed or "solid state guy needs help from tube guys"
  136. Differential input, SET output
  137. FFT of PSUD2 output?
  138. Differential push-pull design question
  139. Any EF184 users?
  140. 30P1S - How to use them?
  141. st-70 as good as it gets?
  142. Subbing in a TVC - input load Q
  143. Chinese tubes, new ones or relabeled?
  144. 6AV6 => 12AX7 question
  145. 845 & 300b tubes
  146. Sourcing sockets and plugs for power supply umbilicals
  147. Sub mini history question ...
  148. 6DX8 Amp for Headphones and Low Volume Needs
  149. Surplus Voltage Solution
  150. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  151. RCA mystery tube help
  152. Sub-Miniature Tubes - Low Voltage
  153. True direct-coupled PP amp
  154. "Radical" twist on an all DHT phonostage
  155. input tubes for 300b
  156. JE Labs simple 2a3 filiment tranny, 1 or 2?
  157. ebay Valve Preamps boards for 18 !
  158. Smoothing caps
  159. Spud issues - a little help, please
  160. Has anyone here built something with this super triode?
  161. What is this part in old radio?
  162. Has anyone done anything with a 5977 sub-mini
  163. Driving EQ from kathode resistor
  164. Understanding CCS vs CVS
  165. Can you believe this!
  166. help with my humming valve amp
  167. Picking tubes for SimpleSE-ish amplifier
  168. 6gk5/ECC88 Phono any comments.
  169. Meng Yue X1 6P1 amp (NOT the mini)
  170. Basic HiFi Tube Amp Layout? Please?
  171. stupid switch question
  172. Max Current of James JS-6123HS Transformer
  173. How do you determine a driver stage?
  174. SUPER cheap nos tubes if you live in california.
  175. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  176. Can't get adjustable reg to work
  177. 9 volt tube preamp.
  178. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  179. Equivalent to IXCP10M45S?
  180. Looking for non-DRD 300B using D3a as driver
  181. Akai M8 rebuild/restore/will-this-work?
  182. space charge 12fx8 amp or preamp schematic?
  183. Help with setup to trace UL curves
  184. My KT88 Williamson Amp Build
  185. UV 203A any good for audio ?
  186. What gives with this square wave?
  187. bottlehead paramour PT
  188. DC filament supply without electrolytic(s)?
  189. Looking for R Core power trafo and choke
  190. PP tube amp for bi-amping : above 400 hz
  191. 6N6P question
  192. Integrated valve amplifier : to buy or to build
  193. Lookin for an ST-70-like project
  194. Formula for Zout of diff pair
  195. 6SL7 and Crossovers
  196. Meng Yue: EL34 or 6P1?
  197. Power Transformers and chokes
  198. nos amperex authentic? label doesn't rub off
  199. Software analysis using tube analog circuit Audio Note Kit 1
  200. Webster Amps,Racine Wis.
  201. Help figuring out resistor values
  202. Small (Novel) Tube Rectifiers?
  203. Conrad Johnson ART preamp question.
  204. pd510
  205. i want to build 3D21WB tube PP amp
  206. How to choose an optimal load line for a cathode follwer buffer?
  207. removing sound controlls...
  208. Pentode cathode follower output impedance
  209. Telematic KC401
  210. ebay, 7c kit, worth it?
  211. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  212. Olson AM-158
  213. Check out my KT88 curves
  214. Just another /\|OOB to Tubes....Need Schem Help
  215. Problem with 832A PP amp
  216. Marantz 8b power transformer
  217. New SET Project
  218. Magnavox Model #OFMC26 Tube Stereo
  219. Balancing Servo
  220. Akai M8 Modding Service Required
  221. 12AX7 basics, some questions on wiring
  222. Tube Shield
  223. Choosing an output transformer
  224. Lost in Translation - DIY Japan
  225. Ebay KT88
  226. Filament voltages - an idle curiosity
  227. Project caused by need
  228. PSU issues, advice needed.
  229. Question about cathode voltage
  230. NOS/NIB tubes what does it mean?
  231. Help to identify transformers
  232. DIY tube amp power supply
  233. Socket Saver
  234. Need some tube help!
  235. Need Help Biasing TRV-M300SE Amps
  236. Will this supply work?
  237. First foray into SET, design for your comment
  238. Help understanding a few Ohm's law calculations
  239. Hum in left channer - rogers cadet 3
  240. Need help on understanding AudioResearch like output stage
  241. Help finding 2A3 integrated 2 stage design
  242. 75 / 2A6 Spice Model?
  243. Vacuum Tube DAC
  244. Need help wiring CT transformer
  245. What is this component in my tube amp?
  246. What type of amp should I make with this? Schematic help also needed
  247. 6418 tube preamplifier - Oatley Electronics
  248. Black out coused demage in tube output stage
  249. Need help adding a master volume, and some troubleshooting ...
  250. Other uses for your 807's

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