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

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