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  1. 6V6 filaments in series
  2. my loud valve preamp
  3. Tranformer for Chinese pre amp (6N11) ?
  4. 1 watt desk speaker
  5. PE06/40 replacement
  6. Salvaged console tube reciever
  7. EF86 swap for 6BQ5 reverb?
  8. Yaqin CD3 Impressions and Internals
  9. svetlana 6D22S heater issues/question
  10. Unity-Gain EL84 Push-Pull Power Buffer
  11. Tube rectifier input capacitance
  12. Borbely hybrid Tube-MOSFET opamp
  13. Help! Tube Rolling
  14. Articles on Global Feedback
  15. Symetrical out low Zout
  16. Any Rimlock PCB sockets out there?
  17. 12SN7 Round Plate Tung Sol--is there such a thing?
  18. Vintage 2a3 tube amp
  19. Balance in CCS Long Tailed Pairs
  20. Audioromy 813 Mains Transformer
  21. Hello all, Im new from Spain, sorry for my english, and problems with my music angel
  22. use 120V x 2 for Aikido octal transformer?
  23. P-P O/P Trafo with only 2 tubes insead of 4?
  24. Eico HF-87 refurb
  25. Which SS CCS for the plate load on a 6N1P?
  26. Um, Can I do this?
  27. Eico power supply trouble (hlp plz)
  28. TV live regulator to tube preamp
  29. How to Spec Headphone output transformers
  30. Can I enlarge the mounting hole on Mosfet?
  31. Meng Yue 6P1
  32. Finding triode curves
  33. Critique my schematic 12ay7 linestage
  34. Suppresor Grid used for Feedback?
  35. Power Cascode
  36. Audio grade components
  37. Line Voltage with Yaqin MC-100B amp
  38. heater warmup and b+ delay
  39. BAL to UNBAL DAC buffer
  40. Counterpoint SA-7 - need a pic of the inside
  41. Are Chinese 6N2 the same as Russian 6N2P?
  42. New project; Musical Machine
  43. 4D32 SE amp, a few more questions
  44. Static shock with simple se
  45. Old electrolytic caps ok? MOSCODE 600
  46. Transformer Flux Band Tips and Tricks?
  47. What tube config will get this sound?
  48. On cleaning transformers
  49. My first project ELEKIT TU-870R
  50. DC7 MkII :New Schade 6080 amp.
  51. current driver tube amplifier
  52. A DC coupled headphones amp
  53. Ebay trader zhangsheng
  54. decware kits worth it?
  55. Simple test for transformer frequency response?
  56. Modular guitar tube amp power supply - interface concerns
  57. Vacuum Tube Voltmeters
  58. Power Trans. Load Test
  59. Replacing Cap Across Filter Cap
  60. Regulate HV preamp with floating LM317?
  61. Rogers cadet 3
  62. AC15 Heritage Project w/ Sound Clips
  63. Output impedance tap considerations.....
  64. Amp switch safety load
  65. MF X-10D replica problem
  66. Nice triode
  67. Low gain preamplifier
  68. Improving a Maple Tree Audio PS 2 power supply
  69. Baby Huey-ish phono?
  70. New? Local Feedback Method
  71. PSUD Help Needed: What value do I enter for current?
  72. Question on WE310
  73. How do you calculate choke size in a power supply?
  74. tubecad and tubecad se
  75. 300B amp Power Supply
  76. Adjustable internal Resonance?
  77. B+ Voltage sag for AB1 PP
  78. Maplin
  79. Preamp with an integrated amp
  80. First "boot" in 15 years
  81. Inherited these tubes. Anything interesting?
  82. What application for this tube?
  83. tantalum cap
  84. do I need to upgrade my heater supply to add another tube?
  85. Anyone have curves for a 2C52?
  86. tube-amplifier-shaped-usb-speaker
  87. pre-amp tubes: matching and care
  88. How to self taught about building tube amplifiers
  89. Any pretty good/bad chinese amps?
  90. Couple idiot questions....
  91. Looking for the triode mode of Z759
  92. Couple idiot questions....
  93. push pull 45
  94. Video of hum noise when I switch on the reverb of my Twin Amp
  95. 6sj7 spice model
  96. Help finding parallel 45 SE schematic
  97. filling in the low end, 6bq5 12ax7 circuitry
  98. Dynaco Mark VI
  99. Looking for Sonic Frontiers SFS80 Schematic
  100. CCS or V.REG for OP anode
  101. Yarland FV 34CIII
  102. Looking for OPT steel covers
  103. Damper diodes, center tapped heater, B+
  104. Dynaco ST-35 Newbie cathodyne question
  105. Anyone have valve/tube libraries for express PCB or PCB123?
  106. Looking for the Ultimate Aikido.
  107. CCS loaded DHT cathode follower?
  108. Phono stage with LT1028 MC input
  109. New valve int flash over why ?
  110. Sweep tube suggestions
  111. Amp project output problem
  112. 12AX7,6BQ5 PP Amp Search.
  113. Dynaco MkIII preamp/linestage recommendations?
  114. Can someone please check my PCB layout for this preamp?
  115. looking for easy, low cost guitar amp project
  116. UK EBAY - 100W Marshall / Fender Clone Transformer Set
  117. 1KW power - what do you think?
  118. Bottlehead Filament Choke FC-1 for Push-Pull?
  119. Home James! But first, which transformer?
  120. NAD preamp = 6BQ5 Frankenschteen
  121. Wintersweet highvividity driver circuit
  122. Looking for TT11(CV1501) triode mode curve
  123. Amp switching with 4093/4066. How to add indicator LEDs?
  124. Yaqin MC-10L Blown Fuse
  125. 2a3 amp, progress picture
  126. How do I implement an AZ1 rec tube???
  127. Profit margin on used tube amps
  128. 300B sockets (different question)
  129. How can I modify this grommes little jewel amp for guitar.
  130. tri-amping question (s)
  131. Unity coupled power stage
  132. Acquired A Bunch Of Tubes
  133. Understanding load lines
  134. what would happen if.........?
  135. Testing valves/tubes
  136. 300b socket
  137. Vertical vs. Horizontal does it matter?
  138. Layout thoughts hmm....
  139. ID request, is this a pre?
  140. Anyone got any info on the Tippatone 500 watt amps?
  141. SMPS for Filaments?
  142. Using 6n6pi Push and Pull
  143. Optimum Tube Temperature
  144. Chassis
  145. 5670
  146. will this spice works in real word?
  147. An amplifier for Burning Man
  148. 12AT7,12AU7 Ultra linear cascode
  149. El Cheapo Grande
  150. EL84 Unused pins safe to connect?
  151. 6BQ5/EL84 tube buffer questions
  152. How much power do I need?
  153. Tube buffer/preamp. Where to place voltage divider?
  154. Schematic wanted for VTL Preamp "Maximal"
  155. modified GEC 88-50
  156. Zenith 7B31 Help
  157. Do swingers always buzz when they swing?
  158. 6at6 tube? What can i use it for?
  159. Sovtek 6550WA?
  160. how to make a tube gyrator eq?
  161. Transformer needed or "solid state guy needs help from tube guys"
  162. Differential input, SET output
  163. FFT of PSUD2 output?
  164. Differential push-pull design question
  165. Any EF184 users?
  166. 30P1S - How to use them?
  167. st-70 as good as it gets?
  168. Subbing in a TVC - input load Q
  169. Chinese tubes, new ones or relabeled?
  170. 6AV6 => 12AX7 question
  171. crate vintage club 50 2x12 keeps blowing preamp tubes
  172. 845 & 300b tubes
  173. Sourcing sockets and plugs for power supply umbilicals
  174. Sub mini history question ...
  175. 6DX8 Amp for Headphones and Low Volume Needs
  176. Surplus Voltage Solution
  177. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  178. RCA mystery tube help
  179. Breadboarding/Prototyping - How to and Tips/Tricks
  180. Sub-Miniature Tubes - Low Voltage
  181. True direct-coupled PP amp
  182. "Radical" twist on an all DHT phonostage
  183. input tubes for 300b
  184. JE Labs simple 2a3 filiment tranny, 1 or 2?
  185. ebay Valve Preamps boards for 18 !
  186. Smoothing caps
  187. Spud issues - a little help, please
  188. GLY513 in PS of Simple SE / PP and OTL
  189. Has anyone here built something with this super triode?
  190. What is this part in old radio?
  191. Has anyone done anything with a 5977 sub-mini
  192. Driving EQ from kathode resistor
  193. Understanding CCS vs CVS
  194. Can you believe this!
  195. help with my humming valve amp
  196. Picking tubes for SimpleSE-ish amplifier
  197. 6gk5/ECC88 Phono any comments.
  198. Meng Yue X1 6P1 amp (NOT the mini)
  199. Basic HiFi Tube Amp Layout? Please?
  200. stupid switch question
  201. Max Current of James JS-6123HS Transformer
  202. How do you determine a driver stage?
  203. SUPER cheap nos tubes if you live in california.
  204. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  205. a good tube tester?
  206. Can't get adjustable reg to work
  207. 9 volt tube preamp.
  208. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  209. Equivalent to IXCP10M45S?
  210. Looking for non-DRD 300B using D3a as driver
  211. Akai M8 rebuild/restore/will-this-work?
  212. space charge 12fx8 amp or preamp schematic?
  213. Help with setup to trace UL curves
  214. My KT88 Williamson Amp Build
  215. UV 203A any good for audio ?
  216. What gives with this square wave?
  217. bottlehead paramour PT
  218. DC filament supply without electrolytic(s)?
  219. Looking for R Core power trafo and choke
  220. PP tube amp for bi-amping : above 400 hz
  221. 6N6P question
  222. Integrated valve amplifier : to buy or to build
  223. Lookin for an ST-70-like project
  224. Formula for Zout of diff pair
  225. 6SL7 and Crossovers
  226. Meng Yue: EL34 or 6P1?
  227. Power Transformers and chokes
  228. nos amperex authentic? label doesn't rub off
  229. Software analysis using tube analog circuit Audio Note Kit 1
  230. Webster Amps,Racine Wis.
  231. Help figuring out resistor values
  232. Small (Novel) Tube Rectifiers?
  233. Conrad Johnson ART preamp question.
  234. pd510
  235. i want to build 3D21WB tube PP amp
  236. How to choose an optimal load line for a cathode follwer buffer?
  237. removing sound controlls...
  238. Pentode cathode follower output impedance
  239. Telematic KC401
  240. ebay, 7c kit, worth it?
  241. Mullard 5-10 for guitar use?
  242. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  243. Olson AM-158
  244. Check out my KT88 curves
  245. Just another /\|OOB to Tubes....Need Schem Help
  246. Problem with 832A PP amp
  247. Marantz 8b power transformer
  248. New SET Project
  249. Magnavox Model #OFMC26 Tube Stereo
  250. Balancing Servo

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