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  1. Sophia Electric el34 mods/upgrades
  2. Looking to build....
  3. Bias resistor for source follower driver
  4. PL 519 electrical characteristics
  5. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  6. My 6AS7G Fuse Link Checker
  7. Anyone ever had issues with One Electron?
  8. 35% off sale at RadioDaze
  9. phase splitter with Tr ?
  10. Chasing my Simple SE problem...
  11. Zenith stereo, EL84 SE. What to do...
  12. Free TVA-1 rev.3 schematic
  13. Bat Vk-60
  14. Trouble with amp 6V6
  15. 5-125 UL curves anyone?
  16. Mod it or scrap it?
  17. Bogen M330
  18. 1st Tube Amp - What to build?
  19. 6J5 weird phase inverter
  20. swinging CCS PP output stage
  21. Varying 2 tube amp characteristics: SE treble and richness
  22. Jadis Defy 7 Schematic
  23. microphonic sub-miniature tubes?
  24. Transformer distortion (THD)
  25. Options for replacing EF86? E180F?
  26. changing an integrated tube amp to a power amp
  27. Nice tube test supply
  28. Looking for 300B 2.5V heater vendor
  29. Cap to bypass bias battery
  30. 2A3 SE parafeed with PP-transformer
  31. Preamp Voltages
  32. TVA-1 "Export" circuit/schematic?
  33. 12ax7 series is this correct??
  34. Yet Another Phono Stage Suggestions Thread
  35. 15% off sale at Soniccraft
  36. Bias Mode Switching Question (guitar Amp)
  37. Sizing Coupling Capacitors
  38. budget xformer for 829B pentode mode PP (class AB) ?
  39. preamp layout suggestions please
  40. Capacitors and hype!
  41. Transofrmer secondaries
  42. please help 407a
  43. OPT Grounding / Crosstalk
  44. SE With shared Rk in output
  45. Unsolved problem EL34/12AT7/5AR4
  46. Radford STA25 service UK
  47. My tube DIY Web page, translate into English
  48. suggestion about AIKIDO PRE
  49. jackson tube tester 648s manuals
  50. Hashimoto A-105 - 6S4A
  51. Looking For Counterpoint SA2000 Schematic
  52. Where do you put the standby switch
  53. Simple SE Schematic
  54. Operating point for 6GK5
  55. Audio Research St-70-c3
  56. Help identifying tube amp
  57. Ed8000
  58. power suply for Pre & Phono Use tube 6BM8
  59. ESLDD with "anti-triode"
  60. Schematics border patrol psu
  61. Tubelab PCBs for an 845 - a good idea?
  62. Bias supply idea
  63. dynaco st 70 c3
  64. KT88 and the 6550
  65. crate vintage club problem
  66. GM70/GM70 parafeed SET?
  67. Genalex repro KT88s
  68. Grid - Screen Alignment (X-Rays)
  69. tube matching
  70. DC heaters for 5687 in Aikido?
  71. Connection Jensen 4-pole
  72. Measuring Output Power
  73. Modelling stereo PSU in PSUD ...
  74. Speaker matching transformer.
  75. Sowter's Radford transformer
  76. Cathode bias 6LU8 UL/Triode
  77. Cathode bias 6LU8 UL/Triode
  78. Sourcing ASC 100uf X386S capacitor
  79. Looking for a linear triode for lowish B+ CF (6N6P?)
  80. need spice model 5814a
  81. 420T or 10E/33B ?????????
  82. Decca DMI-73 and EL-84 weirdness
  83. DIY JTM 45/100 Style Guitar Amp
  84. Pentode guys: important to decouple g2 supply between stages?
  85. Ccs
  86. The Friday Chuckle
  87. Need help deciding what to build
  88. Why does red plate spell early death?
  89. Odd transformer with 6X4 tube mounted on top.. smoking more than my uncle Frank
  90. fisher 400 tweaking issues
  91. GM70 an 813 strapped in SE-UL - circuits?
  92. need help on transformer secondaries connection
  93. Partridge audio output transformer value
  94. Low mu Preamp Triodes as Power Output Tubes
  95. 300B Transformer temperature
  96. Standby Switch Problems
  97. Worth repairing?
  98. Measuring current distortion
  99. GM70 sockets?
  100. high AC mains problem
  101. 250 V PSU help
  102. EL34 UL Curves
  103. datasheet for ge 5star and rca command 5814a?
  104. PS choke voltage/current quetsion
  105. push pull power amp design question (a lot of actually :) )
  106. Knight Amplifier Repair Question
  107. Grant G100AS circuit diagram?
  108. Hashimoto A-105 - summary so far
  109. Related Audio Worlds largest
  110. Why do valves go microphonic?
  111. Allen Wright Superreg manual
  112. Need help on resistor values for 5687 aikido kit
  113. Pioneer SM83 PP amps
  114. Techtube valves/tubes
  115. Datasheet for Russian 6p3s-e
  116. Continually Blowing Fuses
  117. I am done with AES -- a short rant.
  118. CineMag CMMI-15/15B
  119. In market for a Capacitor meter - for a tube project!
  120. What amp(s) would you buy under $1500
  121. Etf 2008
  122. All FET Aikido
  123. what 12au7 have different tone ??vintage and modern
  124. Can 3.5W 2A3 amp drive proAc 1SC?
  125. British seven pin sockets
  126. Pentodes, triode mode and grid screen dissipation 101
  127. Yakov Aronov amps
  128. Suitable tube pre-amp for Phase Linear 400?
  129. Goldpoint value?
  130. TubelabSE 300B power transformer ?
  131. 316A socket
  132. Hashimoto A105 - some results (ECC99)
  133. Some uses for old transformers
  134. Power Supply Question
  135. PY82 as rectifier
  136. Jackson 637 Tube tester Info needed
  137. pro-ject tube box
  138. Some dumb Questions on Heater CCS supply
  139. Aikido loses power?
  140. Quicksilver 8417/12FQ7 mods
  141. Calculations for an AIKIDO
  142. Music Angel Empty shells
  143. Enclosure for tube amp/speaker/reverb unit
  144. Need help troubleshooting preamp trouble
  145. Compactrons on the brain!
  146. XSE vs. GSXE Edcors
  147. output transformer
  148. How to simulate OPT in LTspice?
  149. 311-b
  150. PSU Design help !!!
  151. BDT Preamp build
  152. Russian tubes / capacitors purchasing
  153. Bored with Leak ST20 - ideas?
  154. KT-88 Music Angel problems with sound level
  155. Fusion Hybrid 300B
  156. I'm new here..... :(
  157. DIY/Buy/Kit
  158. Ralph from Atma-sphere will be giving a talk 09/16
  159. Modified USB DAC board, DDDAC with triode buffer
  160. LS50/GU50 Both Grid Drive
  161. Aikido filament question
  162. 6l6 Se.
  163. Feedback requested on 7591 PP design
  164. Blackburn Mullard/Philips video
  165. DIY sheilded B+ cable
  166. Experimenters Tube Sockets
  167. Used freebies precipitate questions
  168. Mains toroid as IT with DC balance?
  169. Tubes for Viva Solista 845 SET amp
  170. SE transformer for PP duty?
  171. Warning: new SS relay question / No flame I
  172. Tube Haunts Thread?
  173. Problem with Maida regulator
  174. 2 stage SE IT coupled amps..
  175. BUF420M Current Sink
  176. Direct from the mains?
  177. PSU capacitors: 30uF film ok instead of 100uF electrolytic?
  178. Annealed silicon core opt`s
  179. Designing a "cheap" highish-power PP amp...
  180. Improvements for the Mikael Abdellah KT88???
  181. DC supply on driver tube hums..
  182. Sun Audio SV-2A3
  183. Mullard Blackburn Tube Factory Tour Video
  184. SE amp: Please suggest a better operating point
  185. Paralleling Outputs or Bi-amp
  186. triple triode common cathode - only want to use 2 triodes
  187. Luxman 3045 Mono Block Tube Amp
  188. Eye tube for balancing multi amp system
  189. 12ax7 preamp.
  190. External PSU for Quad 22 pre-amplifier
  191. Keep Blowing Fuses
  192. learning tube rectified psu
  193. 17JB6... guitar amp?
  194. Series of Diode on HT Plate
  195. Quad II power amps......power output transformers!!!
  196. Mullard (factory) making tubes again
  197. CFB and A2 operation
  198. DIY triode
  199. Interesting symmetrical amp from 1955 magazine
  200. 6N23P, 6S19P anybody knows?
  201. Worlds smallest HiFi valve amp
  202. A DIY Interruptus Moment
  203. Noisy EL84 amp needs new front end
  204. Loosening up magnetic "stiction"
  205. The Return Of Blackburn Mullards?
  206. Can I use different value cap?
  207. tubelab SimpleSe power transformer connection question
  208. need output transformer for Fisher
  209. help for E182CC linestage/driver
  210. User Beware: A Report On Jj Tubes
  211. Depletion mode mosfets for 2mA CCS ?
  212. New tube stash question
  213. Stepped attenuator recommendation...
  214. Pros and cons of Cascoded front ends
  215. EF86 as a volume pot, line pre 2008
  216. RCA voltage regulator
  217. Input voltage attenuation
  218. Valve Buffer amp
  219. 6y6ga
  220. Filmosound L-1 6V6 Volume pot issue
  221. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  222. Another 3f4 spice triode model: 5718 submini triode
  223. hp-8903B advice??
  224. need info on how to convert my bogen k10 for guitars use
  225. Differential Amplfiers - current sources under/over the triodes
  226. Impedance rate VS impedance stability
  227. Anyone running Mikael's SE KT88 in Pentode?
  228. what double triode is less microphonic ?
  229. Need advice on proper use of anode chokes.
  230. Grounding problem?
  231. Current regulation for filament of say a 300B
  232. diagram for OTP 6.6K valve KT88
  233. Dynaco Pas Transformer
  234. Regulated screen supply
  235. Shocked!!!
  236. set el84 tube amp
  237. tube preamp RIAA
  238. 4E27 as a substitution of 845
  239. LS 37 lite audio phono
  240. I want to build an amp!!!
  241. Multimeter test leads?
  242. Choosing proper g2 grid stoppers for SE UL..?
  243. audio note P1SE improvements
  244. Help for choke input regulated PSU
  245. 5687 perveance
  246. Where Can I Pick Up Neutral
  247. Hyperlinear line preamp
  248. What tube to use.
  249. Using mains transformer as output transformer
  250. AutoCAD of tube Packages?

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