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  1. Anyone used IXCP10M90S ltspice model ?
  2. and the quiz identify power trans continue
  3. Valve HT power supply common-mode noise
  4. 12AX7 and 6AS5 tube amplifier
  5. Working with Eagle and single channel tube amp board.
  6. New hands-on tutorial for Tube Newbies
  7. Help me to choose tube "1 no ring" "2 has ring"
  8. Chinese board 6L6 KT88 is it worth???
  9. Valve Rectifier Testing
  10. Harman Kardon TA-120 Output Transformer
  11. Single ended transformer as pushpull?
  12. Resurrecting a nOrh SE9 Integrated Amp
  13. Fisher Amps?
  14. Repurposing an old Gulbransen Organ tube amp
  15. Help, the sound is silken or blow up?
  16. Now here's an idea - The DIYF QUAD
  17. Parallel output SE amp options
  18. What tube is equivalent 5879?
  19. Filament Xfmr: can I trade volts for amps?
  20. GU50 PP possible with this iron ?
  21. Hifi tube amps - overall sound
  22. Preamp grounding questions
  23. Tube rectifiers
  24. DIY PL84 + E180F
  25. McIntosh on How It's Made
  26. Choke input LCLC supply - question on minimum current
  27. EBC3 & CBL1 Tube AMP
  28. CLASS A HYBRID POWER AMP
  29. MXL V69 Mogami Edition signal cuts in/out
  30. Ultra-linear plate characteristic curve for EL34
  31. Need help to modify circuit to suit replacement power XFMR
  32. Line preamp schematic for 5GH8A wanted.
  33. help please - modify phono corrector
  34. Help me: Brimar 5Z4G, 5Y3GT is this an equivalent to a 5Y3WGTA?
  35. A Russian glow tube regulator with specs of 75V 60mA ?
  36. Help with filament for ecc88
  37. How much power transformer is necessary?
  38. testing the 300b tube
  39. Headphone amplifier outputs, so many permutations!
  40. tube footprint in Eagle
  41. Need VTVM repairs
  42. First Timer - DIY Tube Amp
  43. Help identify OT please
  44. gEDA and tubes
  45. Triode Electronics Issues?
  46. RCA BC5B consolette manual?
  47. Help with converting EL37 amp to KT66
  48. treadmill choke
  49. Preamp OPT
  50. Probleme with Volume Pot
  51. Simple SE 6L6 2 watt Homebrew
  52. is 6J32P equivalent of EF806 ?
  53. new tubes vs old ones
  54. 6p36s tube torture.
  55. Questions re: Bypass of B+ to differential amp
  56. Tube choice for yaqin cd3 buffer
  57. yesterday and today
  58. 260VDC need how much VAC transformer, is it 184VAC?
  59. preamp static
  60. Tube Line or Phono Stage bare kit
  61. Grounding of Hammond transformers
  62. Spud Amplifier with 6E5P Tube
  63. RAT Tube Tester build
  64. need a little help with identification
  65. aikido 12vac help needed
  66. Mullard 3-3 PCB
  67. OTL Using OPT
  68. VA/CF 6SN7 preamp input points?
  69. Copper losses in output transformers
  70. Yaqin MC550 Anyone?
  71. Bigger value output coupling
  72. DIY KT88 SEUL
  73. Leben CS300x feedback loop cap
  74. 6T8 / EABC80 as phase splitter / other uses
  75. Curve Tracer Screen Current
  76. Aikido Cathode Follower preamplifier with remote
  77. Grid Isolation in Fault Conditions
  78. Audio research ls2b parts list
  79. Heathkit USC-1 pre-amp
  80. Counterpoint SA3 Project
  81. Why such a high bias current on output valves ?
  82. how long before new tubes are run in ?
  83. Latest project, valve stereo disco mixer
  84. Mullard 5-20 EL34 biasing
  85. Parallel Driver Tubes?
  86. B+ Regulators
  87. Looking for Cary SLP98 Tube Preamplifier Schematic
  88. Hirage Le Monstre euals my best valve amps !
  89. Ran a JJ6v6S at 37 Watts, is it damaged?
  90. Zener diodes as protection clippers
  91. KT120 upgrade from KT88 6550
  92. panasonic dc link capacitors
  93. PTFE covered wire
  94. Grounding Qustion?
  95. New high-Z 1:1 input transformer from Hammond (10k:10k)
  96. Tube amp wiring and temperatures
  97. Pete Millett's Uniamp
  98. 211 tube. more time to brake in or bad tube
  99. Just a thought.
  100. Tube Heater Question
  101. No not Again...Aikido Plate dissipation question
  102. RH amp question!
  103. Mullard 5-20 power supply
  104. b&k 500 tube chart question
  105. Combining two single-ended tube stages for XLR-output - Question
  106. Scope pattern
  107. Diode cathode bias?
  108. Contact Enhancers/Corrosion Inhibitors for Aluminum
  109. My SE 46 tube monoblocks project
  110. E88CC / 6922 Datasheet Limiting Values
  111. Fisher Power Transformers
  112. does someone know about this russia amplifier ?
  113. How to improve this 6B4G push-pull circuit
  114. EL34 UL PP Transformer
  115. sears silvertone medalist stereo amp schematic needed
  116. Led bias on powertubes?
  117. Thermal Runaway
  118. Going from zero to pro tube amplifier. Resources?
  119. DIY Novar Socket
  120. Hum pickup from line output transformers
  121. Photo of a JJ 300B Filaments!! Please! :)
  122. Super FU-29
  123. Questions about Tim Mellow 6C33C OTL
  124. James or Silk for EL36SE?
  125. Dead KT88
  126. MS 110B KT88 INTEGRATED AMPLIFIER
  127. The Mighty 6550...
  128. recomend me some EL34 PLEASE
  129. Adding tone controls
  130. TJ Full Music 2A3/CNE
  131. groove tubes for headphone amp
  132. IXYS LTSpice Models (or something equivalent?)
  133. Soviet 6p3s/6p3s-e
  134. A case of direct coupled cathode follower
  135. SE45 schematic monoblock to stereo help
  136. Heathkit Schematics & Manuals
  137. 211 tube amp problem Help
  138. Department of inapprehensible schematics
  139. How low can you go...?
  140. EL34/6L6 Screen reistors...
  141. 809, anyone played around with them?
  142. Skinny OTL
  143. Adjust drive and output level with one knob
  144. Help me rack some Gates Program Amps
  145. Switch Mode Heater Supply
  146. Pre Ampje
  147. Maida Regulator Digital Control
  148. Worried by 110v reading on 6.3v tap....
  149. Safety Alert - UK Yaqin users
  150. 27> EL34 (triode) > 300B
  151. Rockola juke box amp - unusual features
  152. 3.5 watt ECL82 Amp
  153. 12BH7 Headphone Amp
  154. White Cathode Follower Quandary
  155. help in aikido for sennheiser hd580
  156. Home brew more economical than an ST-35
  157. Modeling Pull-Push transformer in LTspice
  158. The Fisher 400-C "Fixer-upper"
  159. Power Transformer question/concern
  160. Nice little schematic drawing app w/ tube symbols
  161. best budget diy kit?
  162. Transconductance amplifier for headphones.
  163. El Cheapo information?
  164. Aikido 9-Pin Configuration
  165. Strange motorboating issue
  166. Lumley M120 Monoblocks - Need Manual, schematic or anything !!!
  167. Substituting higher wattage resistors
  168. cap coupling to interstage transformer or direct coupling?
  169. A question of feedback..
  170. Two Monoblocks "Dying" Within Days Of Each Other
  171. Russian 1Zh24B Pentods / design assistance.
  172. What Tubes for 5.8k PP transformers
  173. Problem with a power transformer.
  174. 300B OTL Preamp/Headphone Amp
  175. tantalum resistors
  176. 6BM8 in STC mode
  177. My Moscode again: What is the bias current?
  178. OTL WCF headphone amp build + awesome prototype material
  179. Type 42 single ended ideas
  180. Help with my Moscode 300 amp
  181. Thoughts on this volume potentiometer?
  182. Optimum load impedance for PCL85?
  183. Croatian triode Festival 2014.
  184. Old ekco tv transformers
  185. vacuum tube score.. what to do with
  186. Valve based disco mixer.
  187. Webcor ceramic phono input circuitry suggestions?
  188. Position of OPT windings
  189. sd2 seven pin??
  190. Help design a Small 250VDC PSU for tube preamp
  191. Bright Driver Tubes 12AU7, 12BH7, 5814...
  192. Question about using tube socket center hole for star ground
  193. Heathkit UA-2 clone project
  194. Schematic CAD Program
  195. Latest on the RH amps..
  196. Transformer design program
  197. 807 "Musicians Amplifier" help
  198. J.E. LABS PP2A3 POWER SUPPLY ?
  199. Mono Block Building Project
  200. EL34 CCS ideas
  201. Magnavox 8601-20
  202. wood/metal vs all-metal chassis
  203. Design data on dry battery tubes
  204. Differential tube with a gain stage 1178
  205. 6C4C tube ...Good to buy ?
  206. Including a C- winding on a filament transformer
  207. CINEMAG 15B TRANSFORMERS balanced>unbalanced
  208. Rebuilt Heathkit AA32 with hum on MAG PHONO input
  209. Electrolytic cap question
  210. Tube Socket ID
  211. JJ 5Y3S is too tall...need smaller tube
  212. Uniamp 2A3
  213. buzz noise from paraphase circuit
  214. Benefits of Enhanced Triode Connection
  215. Working out a valves load resistance?
  216. 813 Alternatives
  217. Help 6N6T pinout
  218. Very large parafeed cap
  219. Bright purple flash 6N1P
  220. Harman Kardon Citation II - rebuild questions
  221. Stoetkit junior mk2
  222. 1619 Push pull output stage
  223. Tube getter
  224. The sensation of the 21st Century. Galvanic SUPER HIGH END PP power for all types of
  225. Audible Illusions and 6922
  226. quick access tube amp protection
  227. Identifying Genalex KT66 matched pair question
  228. Hunting 100Hz noise in SRPP+ stage
  229. JJ ECC83S Biasing conditions
  230. Audiophiletalk - Dirt Cheap SE
  231. 12AL8 Head-Amp with UTC Output Transformer
  232. SET monoblocks?
  233. EL84 Push Pull design from left over parts
  234. Strange UL Transformers
  235. Stabilization balanced currents in the PP stage.
  236. Current mirror stage in PP
  237. EL34 SE ultralinear schematic
  238. Question: Acceptable DC current in push-pull output transformer due to tube mismatch?
  239. Toroid Power Transformer For GM-70 845 211 1000V
  240. Building the "Crystal Palace" Amp
  241. Improved Sound Card Interface - Ideas and Suggestions?
  242. Upgrading OPTs in production amp? (Yaquin MC-10L)
  243. any good Triode 6H8C preamp schematics out there???
  244. pushpull 6aq5 distortion
  245. Mr. Lian 845 SET more kit rather than commercial product.
  246. Opinion for otl ocl headphone amp
  247. Tube-newby wanting to make a good tube amp
  248. Anyone used a voltage tripler PS?
  249. Audioromy 828A / FU-29 tube layout
  250. Choosing Cathode Bypass Capacitor

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