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  1. Replace Electrolytics?
  2. Can OT's couple?
  3. before i drill Simple SE Chassis Seperation of input and output
  4. gates m-3638 preamp
  5. Oversized caps (PS and coupling) in RH84: Problem?
  6. What makes a great concertina triode?
  7. Luxman SQ5A
  8. Spice model with grid current 12ax7
  9. converting a magnavox pp 6v6 in triode mode
  10. 6V6 filaments in series
  11. my loud valve preamp
  12. Tranformer for Chinese pre amp (6N11) ?
  13. 1 watt desk speaker
  14. PE06/40 replacement
  15. Salvaged console tube reciever
  16. EF86 swap for 6BQ5 reverb?
  17. Yaqin CD3 Impressions and Internals
  18. svetlana 6D22S heater issues/question
  19. Unity-Gain EL84 Push-Pull Power Buffer
  20. Tube rectifier input capacitance
  21. Borbely hybrid Tube-MOSFET opamp
  22. Help! Tube Rolling
  23. Articles on Global Feedback
  24. Symetrical out low Zout
  25. Any Rimlock PCB sockets out there?
  26. 12SN7 Round Plate Tung Sol--is there such a thing?
  27. Vintage 2a3 tube amp
  28. Balance in CCS Long Tailed Pairs
  29. Audioromy 813 Mains Transformer
  30. Hello all, Im new from Spain, sorry for my english, and problems with my music angel
  31. use 120V x 2 for Aikido octal transformer?
  32. P-P O/P Trafo with only 2 tubes insead of 4?
  33. Eico HF-87 refurb
  34. Which SS CCS for the plate load on a 6N1P?
  35. Um, Can I do this?
  36. Eico power supply trouble (hlp plz)
  37. TV live regulator to tube preamp
  38. How to Spec Headphone output transformers
  39. Can I enlarge the mounting hole on Mosfet?
  40. Meng Yue 6P1
  41. Finding triode curves
  42. Critique my schematic 12ay7 linestage
  43. Suppresor Grid used for Feedback?
  44. Power Cascode
  45. Audio grade components
  46. Line Voltage with Yaqin MC-100B amp
  47. heater warmup and b+ delay
  48. BAL to UNBAL DAC buffer
  49. Counterpoint SA-7 - need a pic of the inside
  50. Are Chinese 6N2 the same as Russian 6N2P?
  51. New project; Musical Machine
  52. 4D32 SE amp, a few more questions
  53. Static shock with simple se
  54. Old electrolytic caps ok? MOSCODE 600
  55. Transformer Flux Band Tips and Tricks?
  56. What tube config will get this sound?
  57. On cleaning transformers
  58. My first project ELEKIT TU-870R
  59. DC7 MkII :New Schade 6080 amp.
  60. current driver tube amplifier
  61. A DC coupled headphones amp
  62. Ebay trader zhangsheng
  63. decware kits worth it?
  64. Simple test for transformer frequency response?
  65. Vacuum Tube Voltmeters
  66. Power Trans. Load Test
  67. Replacing Cap Across Filter Cap
  68. Regulate HV preamp with floating LM317?
  69. Rogers cadet 3
  70. Output impedance tap considerations.....
  71. Amp switch safety load
  72. MF X-10D replica problem
  73. Nice triode
  74. Low gain preamplifier
  75. Improving a Maple Tree Audio PS 2 power supply
  76. Baby Huey-ish phono?
  77. New? Local Feedback Method
  78. PSUD Help Needed: What value do I enter for current?
  79. Question on WE310
  80. How do you calculate choke size in a power supply?
  81. tubecad and tubecad se
  82. 300B amp Power Supply
  83. Adjustable internal Resonance?
  84. B+ Voltage sag for AB1 PP
  85. Maplin
  86. Preamp with an integrated amp
  87. First "boot" in 15 years
  88. Inherited these tubes. Anything interesting?
  89. What application for this tube?
  90. tantalum cap
  91. do I need to upgrade my heater supply to add another tube?
  92. Anyone have curves for a 2C52?
  93. tube-amplifier-shaped-usb-speaker
  94. pre-amp tubes: matching and care
  95. How to self taught about building tube amplifiers
  96. Any pretty good/bad chinese amps?
  97. Couple idiot questions....
  98. Looking for the triode mode of Z759
  99. Couple idiot questions....
  100. push pull 45
  101. Video of hum noise when I switch on the reverb of my Twin Amp
  102. 6sj7 spice model
  103. Help finding parallel 45 SE schematic
  104. filling in the low end, 6bq5 12ax7 circuitry
  105. Dynaco Mark VI
  106. Looking for Sonic Frontiers SFS80 Schematic
  107. CCS or V.REG for OP anode
  108. Yarland FV 34CIII
  109. Looking for OPT steel covers
  110. Damper diodes, center tapped heater, B+
  111. Dynaco ST-35 Newbie cathodyne question
  112. Anyone have valve/tube libraries for express PCB or PCB123?
  113. Looking for the Ultimate Aikido.
  114. CCS loaded DHT cathode follower?
  115. Phono stage with LT1028 MC input
  116. New valve int flash over why ?
  117. Sweep tube suggestions
  118. Amp project output problem
  119. 12AX7,6BQ5 PP Amp Search.
  120. Dynaco MkIII preamp/linestage recommendations?
  121. Can someone please check my PCB layout for this preamp?
  122. Bottlehead Filament Choke FC-1 for Push-Pull?
  123. Home James! But first, which transformer?
  124. NAD preamp = 6BQ5 Frankenschteen
  125. Wintersweet highvividity driver circuit
  126. Looking for TT11(CV1501) triode mode curve
  127. Amp switching with 4093/4066. How to add indicator LEDs?
  128. Yaqin MC-10L Blown Fuse
  129. 2a3 amp, progress picture
  130. How do I implement an AZ1 rec tube???
  131. Profit margin on used tube amps
  132. 300B sockets (different question)
  133. tri-amping question (s)
  134. Unity coupled power stage
  135. Acquired A Bunch Of Tubes
  136. Understanding load lines
  137. what would happen if.........?
  138. Testing valves/tubes
  139. 300b socket
  140. Vertical vs. Horizontal does it matter?
  141. Layout thoughts hmm....
  142. ID request, is this a pre?
  143. Anyone got any info on the Tippatone 500 watt amps?
  144. SMPS for Filaments?
  145. Using 6n6pi Push and Pull
  146. Optimum Tube Temperature
  147. Chassis
  148. 5670
  149. will this spice works in real word?
  150. An amplifier for Burning Man
  151. 12AT7,12AU7 Ultra linear cascode
  152. El Cheapo Grande
  153. EL84 Unused pins safe to connect?
  154. 6BQ5/EL84 tube buffer questions
  155. How much power do I need?
  156. Tube buffer/preamp. Where to place voltage divider?
  157. Schematic wanted for VTL Preamp "Maximal"
  158. modified GEC 88-50
  159. Zenith 7B31 Help
  160. Do swingers always buzz when they swing?
  161. 6at6 tube? What can i use it for?
  162. Sovtek 6550WA?
  163. how to make a tube gyrator eq?
  164. Transformer needed or "solid state guy needs help from tube guys"
  165. Differential input, SET output
  166. FFT of PSUD2 output?
  167. Differential push-pull design question
  168. Any EF184 users?
  169. 30P1S - How to use them?
  170. st-70 as good as it gets?
  171. Subbing in a TVC - input load Q
  172. Chinese tubes, new ones or relabeled?
  173. 6AV6 => 12AX7 question
  174. 845 & 300b tubes
  175. Sourcing sockets and plugs for power supply umbilicals
  176. Sub mini history question ...
  177. 6DX8 Amp for Headphones and Low Volume Needs
  178. Surplus Voltage Solution
  179. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  180. RCA mystery tube help
  181. Breadboarding/Prototyping - How to and Tips/Tricks
  182. Sub-Miniature Tubes - Low Voltage
  183. True direct-coupled PP amp
  184. "Radical" twist on an all DHT phonostage
  185. input tubes for 300b
  186. JE Labs simple 2a3 filiment tranny, 1 or 2?
  187. ebay Valve Preamps boards for 18 !
  188. Smoothing caps
  189. Spud issues - a little help, please
  190. GLY513 in PS of Simple SE / PP and OTL
  191. Has anyone here built something with this super triode?
  192. What is this part in old radio?
  193. Has anyone done anything with a 5977 sub-mini
  194. Driving EQ from kathode resistor
  195. Understanding CCS vs CVS
  196. Can you believe this!
  197. help with my humming valve amp
  198. Picking tubes for SimpleSE-ish amplifier
  199. 6gk5/ECC88 Phono any comments.
  200. Meng Yue X1 6P1 amp (NOT the mini)
  201. Basic HiFi Tube Amp Layout? Please?
  202. stupid switch question
  203. Max Current of James JS-6123HS Transformer
  204. How do you determine a driver stage?
  205. SUPER cheap nos tubes if you live in california.
  206. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  207. a good tube tester?
  208. Can't get adjustable reg to work
  209. 9 volt tube preamp.
  210. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  211. Equivalent to IXCP10M45S?
  212. Looking for non-DRD 300B using D3a as driver
  213. Akai M8 rebuild/restore/will-this-work?
  214. space charge 12fx8 amp or preamp schematic?
  215. Help with setup to trace UL curves
  216. My KT88 Williamson Amp Build
  217. UV 203A any good for audio ?
  218. What gives with this square wave?
  219. bottlehead paramour PT
  220. DC filament supply without electrolytic(s)?
  221. Looking for R Core power trafo and choke
  222. PP tube amp for bi-amping : above 400 hz
  223. 6N6P question
  224. Integrated valve amplifier : to buy or to build
  225. Lookin for an ST-70-like project
  226. Formula for Zout of diff pair
  227. 6SL7 and Crossovers
  228. Meng Yue: EL34 or 6P1?
  229. Power Transformers and chokes
  230. nos amperex authentic? label doesn't rub off
  231. Software analysis using tube analog circuit Audio Note Kit 1
  232. Webster Amps,Racine Wis.
  233. Help figuring out resistor values
  234. Small (Novel) Tube Rectifiers?
  235. Conrad Johnson ART preamp question.
  236. pd510
  237. i want to build 3D21WB tube PP amp
  238. How to choose an optimal load line for a cathode follwer buffer?
  239. removing sound controlls...
  240. Pentode cathode follower output impedance
  241. Telematic KC401
  242. ebay, 7c kit, worth it?
  243. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  244. Olson AM-158
  245. Check out my KT88 curves
  246. Just another /\|OOB to Tubes....Need Schem Help
  247. Problem with 832A PP amp
  248. Marantz 8b power transformer
  249. New SET Project
  250. Magnavox Model #OFMC26 Tube Stereo

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