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  1. Panasonic HV Electrolitics
  2. Unison Research Smart 845 & dripping sticky goo!
  3. Seeking Danish help to locate two 1950's magazine articles
  4. Valve cruelty ...
  5. Re- calculating RIAA network
  6. Just another cool toy to look at
  7. sherwood s-5000 vs. s-5500 iv OPt's
  8. Sound of 300B SET by Satoru Kobayashi
  9. Using UL taps instead of the anode taps to alter inpedence
  10. Help fast please! Type 3 Ei KT90's - Pre or Post War? How do you know?
  11. 807 PSE schematic design need
  12. 3 direct coupled 2A3 amps
  13. Tube preamplifier with chip power amp
  14. Anyone used IXCP10M90S ltspice model ?
  15. and the quiz identify power trans continue
  16. Valve HT power supply common-mode noise
  17. 12AX7 and 6AS5 tube amplifier
  18. Working with Eagle and single channel tube amp board.
  19. New hands-on tutorial for Tube Newbies
  20. Help me to choose tube "1 no ring" "2 has ring"
  21. Chinese board 6L6 KT88 is it worth???
  22. Valve Rectifier Testing
  23. Harman Kardon TA-120 Output Transformer
  24. Single ended transformer as pushpull?
  25. Resurrecting a nOrh SE9 Integrated Amp
  26. Fisher Amps?
  27. Repurposing an old Gulbransen Organ tube amp
  28. Help, the sound is silken or blow up?
  29. Now here's an idea - The DIYF QUAD
  30. Parallel output SE amp options
  31. What tube is equivalent 5879?
  32. Filament Xfmr: can I trade volts for amps?
  33. GU50 PP possible with this iron ?
  34. Hifi tube amps - overall sound
  35. Preamp grounding questions
  36. Tube rectifiers
  37. DIY PL84 + E180F
  38. McIntosh on How It's Made
  39. Choke input LCLC supply - question on minimum current
  40. EBC3 & CBL1 Tube AMP
  41. CLASS A HYBRID POWER AMP
  42. MXL V69 Mogami Edition signal cuts in/out
  43. Ultra-linear plate characteristic curve for EL34
  44. Need help to modify circuit to suit replacement power XFMR
  45. Line preamp schematic for 5GH8A wanted.
  46. help please - modify phono corrector
  47. Help me: Brimar 5Z4G, 5Y3GT is this an equivalent to a 5Y3WGTA?
  48. A Russian glow tube regulator with specs of 75V 60mA ?
  49. Help with filament for ecc88
  50. How much power transformer is necessary?
  51. testing the 300b tube
  52. Headphone amplifier outputs, so many permutations!
  53. tube footprint in Eagle
  54. Need VTVM repairs
  55. First Timer - DIY Tube Amp
  56. Help identify OT please
  57. gEDA and tubes
  58. Triode Electronics Issues?
  59. RCA BC5B consolette manual?
  60. Help with converting EL37 amp to KT66
  61. treadmill choke
  62. Preamp OPT
  63. Probleme with Volume Pot
  64. Simple SE 6L6 2 watt Homebrew
  65. is 6J32P equivalent of EF806 ?
  66. new tubes vs old ones
  67. 6p36s tube torture.
  68. Questions re: Bypass of B+ to differential amp
  69. Tube choice for yaqin cd3 buffer
  70. yesterday and today
  71. 260VDC need how much VAC transformer, is it 184VAC?
  72. preamp static
  73. Tube Line or Phono Stage bare kit
  74. Grounding of Hammond transformers
  75. Spud Amplifier with 6E5P Tube
  76. RAT Tube Tester build
  77. need a little help with identification
  78. aikido 12vac help needed
  79. Mullard 3-3 PCB
  80. OTL Using OPT
  81. VA/CF 6SN7 preamp input points?
  82. Copper losses in output transformers
  83. Yaqin MC550 Anyone?
  84. Bigger value output coupling
  85. DIY KT88 SEUL
  86. Leben CS300x feedback loop cap
  87. 6T8 / EABC80 as phase splitter / other uses
  88. Curve Tracer Screen Current
  89. Aikido Cathode Follower preamplifier with remote
  90. Grid Isolation in Fault Conditions
  91. Audio research ls2b parts list
  92. Heathkit USC-1 pre-amp
  93. Counterpoint SA3 Project
  94. Why such a high bias current on output valves ?
  95. how long before new tubes are run in ?
  96. Latest project, valve stereo disco mixer
  97. Mullard 5-20 EL34 biasing
  98. Parallel Driver Tubes?
  99. B+ Regulators
  100. Looking for Cary SLP98 Tube Preamplifier Schematic
  101. Hirage Le Monstre equals my best valve amps !
  102. Ran a JJ6v6S at 37 Watts, is it damaged?
  103. Zener diodes as protection clippers
  104. KT120 upgrade from KT88 6550
  105. panasonic dc link capacitors
  106. PTFE covered wire
  107. Grounding Qustion?
  108. New high-Z 1:1 input transformer from Hammond (10k:10k)
  109. Tube amp wiring and temperatures
  110. Pete Millett's Uniamp
  111. 211 tube. more time to brake in or bad tube
  112. Just a thought.
  113. Tube Heater Question
  114. No not Again...Aikido Plate dissipation question
  115. RH amp question!
  116. Mullard 5-20 power supply
  117. b&k 500 tube chart question
  118. Combining two single-ended tube stages for XLR-output - Question
  119. Scope pattern
  120. Diode cathode bias?
  121. Contact Enhancers/Corrosion Inhibitors for Aluminum
  122. My SE 46 tube monoblocks project
  123. E88CC / 6922 Datasheet Limiting Values
  124. Fisher Power Transformers
  125. does someone know about this russia amplifier ?
  126. How to improve this 6B4G push-pull circuit
  127. EL34 UL PP Transformer
  128. sears silvertone medalist stereo amp schematic needed
  129. Led bias on powertubes?
  130. Thermal Runaway
  131. Going from zero to pro tube amplifier. Resources?
  132. DIY Novar Socket
  133. Hum pickup from line output transformers
  134. Photo of a JJ 300B Filaments!! Please! :)
  135. Super FU-29
  136. Questions about Tim Mellow 6C33C OTL
  137. James or Silk for EL36SE?
  138. Dead KT88
  139. MS 110B KT88 INTEGRATED AMPLIFIER
  140. The Mighty 6550...
  141. recomend me some EL34 PLEASE
  142. Adding tone controls
  143. TJ Full Music 2A3/CNE
  144. groove tubes for headphone amp
  145. IXYS LTSpice Models (or something equivalent?)
  146. Soviet 6p3s/6p3s-e
  147. A case of direct coupled cathode follower
  148. SE45 schematic monoblock to stereo help
  149. Heathkit Schematics & Manuals
  150. 211 tube amp problem Help
  151. Department of inapprehensible schematics
  152. How low can you go...?
  153. EL34/6L6 Screen reistors...
  154. 809, anyone played around with them?
  155. Skinny OTL
  156. Adjust drive and output level with one knob
  157. Help me rack some Gates Program Amps
  158. Switch Mode Heater Supply
  159. Pre Ampje
  160. Maida Regulator Digital Control
  161. Worried by 110v reading on 6.3v tap....
  162. Safety Alert - UK Yaqin users
  163. 27> EL34 (triode) > 300B
  164. Rockola juke box amp - unusual features
  165. 3.5 watt ECL82 Amp
  166. 12BH7 Headphone Amp
  167. White Cathode Follower Quandary
  168. help in aikido for sennheiser hd580
  169. Home brew more economical than an ST-35
  170. Modeling Pull-Push transformer in LTspice
  171. The Fisher 400-C "Fixer-upper"
  172. Power Transformer question/concern
  173. Nice little schematic drawing app w/ tube symbols
  174. best budget diy kit?
  175. Transconductance amplifier for headphones.
  176. El Cheapo information?
  177. Aikido 9-Pin Configuration
  178. Strange motorboating issue
  179. Lumley M120 Monoblocks - Need Manual, schematic or anything !!!
  180. Substituting higher wattage resistors
  181. cap coupling to interstage transformer or direct coupling?
  182. A question of feedback..
  183. Two Monoblocks "Dying" Within Days Of Each Other
  184. Russian 1Zh24B Pentods / design assistance.
  185. What Tubes for 5.8k PP transformers
  186. Problem with a power transformer.
  187. 300B OTL Preamp/Headphone Amp
  188. tantalum resistors
  189. 6BM8 in STC mode
  190. My Moscode again: What is the bias current?
  191. OTL WCF headphone amp build + awesome prototype material
  192. Type 42 single ended ideas
  193. Help with my Moscode 300 amp
  194. Thoughts on this volume potentiometer?
  195. Optimum load impedance for PCL85?
  196. Croatian triode Festival 2014.
  197. Old ekco tv transformers
  198. vacuum tube score.. what to do with
  199. Valve based disco mixer.
  200. Webcor ceramic phono input circuitry suggestions?
  201. Position of OPT windings
  202. sd2 seven pin??
  203. Help design a Small 250VDC PSU for tube preamp
  204. Bright Driver Tubes 12AU7, 12BH7, 5814...
  205. Question about using tube socket center hole for star ground
  206. Heathkit UA-2 clone project
  207. Schematic CAD Program
  208. Latest on the RH amps..
  209. Transformer design program
  210. 807 "Musicians Amplifier" help
  211. J.E. LABS PP2A3 POWER SUPPLY ?
  212. Mono Block Building Project
  213. EL34 CCS ideas
  214. Magnavox 8601-20
  215. wood/metal vs all-metal chassis
  216. Design data on dry battery tubes
  217. Differential tube with a gain stage 1178
  218. 6C4C tube ...Good to buy ?
  219. Including a C- winding on a filament transformer
  220. CINEMAG 15B TRANSFORMERS balanced>unbalanced
  221. Rebuilt Heathkit AA32 with hum on MAG PHONO input
  222. Electrolytic cap question
  223. Tube Socket ID
  224. JJ 5Y3S is too tall...need smaller tube
  225. Uniamp 2A3
  226. buzz noise from paraphase circuit
  227. Benefits of Enhanced Triode Connection
  228. Working out a valves load resistance?
  229. 813 Alternatives
  230. Help 6N6T pinout
  231. Very large parafeed cap
  232. Bright purple flash 6N1P
  233. Harman Kardon Citation II - rebuild questions
  234. Stoetkit junior mk2
  235. 1619 Push pull output stage
  236. Tube getter
  237. The sensation of the 21st Century. Galvanic SUPER HIGH END PP power for all types of
  238. Audible Illusions and 6922
  239. quick access tube amp protection
  240. Identifying Genalex KT66 matched pair question
  241. Hunting 100Hz noise in SRPP+ stage
  242. JJ ECC83S Biasing conditions
  243. Audiophiletalk - Dirt Cheap SE
  244. 12AL8 Head-Amp with UTC Output Transformer
  245. SET monoblocks?
  246. EL84 Push Pull design from left over parts
  247. Strange UL Transformers
  248. Stabilization balanced currents in the PP stage.
  249. Current mirror stage in PP
  250. EL34 SE ultralinear schematic

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