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  1. Best sounding 500v. electrolytics
  2. CCS's for CCD line amp?
  3. tube life
  4. For tube amps w/ high output Z - Parallel R cross spkr?
  5. High and low impedance output preamps
  6. LTspice and simulating tube circuits?
  7. Cheap & Well Made Chinese SE EL34 Amp
  8. Heathkit transformer replacement...
  9. Integrated amp will not turn on
  10. EL34, Claus Byrith amplifier, mains noise problem
  11. Need a proposal for a stereo amp
  12. 12AT7 Headphone amp
  13. 6l6/12ax7 schematics please
  14. Hybrid bridge with jfet OS
  15. Please allow me to introduce myselft
  16. Chassis Source
  17. Is my 6L6 amp damaged from EL34's
  18. VISHAY VTA 55 Bulk Metal Foil Resistors?
  19. High-Voltage Power for 6 stage pedal
  20. 10 megaohms??
  21. E180F V EF184
  22. help on gain calculation with transformer for SE tube
  23. Working with constant current charts
  24. Hum and noise in small amp
  25. My project (6c33SET)
  26. EZ260A Grommes 260A Project
  27. 18A5 sound fine in triode mode ?
  28. 6GF5 sound fine in triode mode ?
  29. Muddy 6V6 Power Amp?
  30. GM 70 Schematic needed!
  31. tube simulatie models.
  32. building vacuum tubes... some questons
  33. Hot Rodded Dynaco ST-35 - Dynakit Parts Kit
  34. Fixed bias on small signal pentode
  35. Buffer preamplifier
  36. 7027a testing
  37. decade bank values for a plate current tester
  38. anyone know the dimensions of a dynakit st-70 pcb?
  39. Help on designing full DHT SET power amplifier
  40. dc coupled volume pot value
  41. 20W OTL with 6N5P, Opinions...
  42. Finding parts
  43. Tube's JLH hybrid solution
  44. Curtis Mathes Console / TV receiver
  45. Marantz 8b feedback circuit
  46. Noisy volume pot with some tubes but not others
  47. Found an Eico HF-86 for sale, is it worth it?
  48. Paco T-60 Tube Tester
  49. Aikido all in one heater issue
  50. Need a little help with Chinese tube Preamp
  51. Choke Loaded Const. Current Draw Amp
  52. 6550 SINGLE-ENDED AMPLIFIER
  53. Balancing pp driver stage
  54. P-P 6C33
  55. Need help with Cornet 2
  56. Sweet folly: a tube SMPS
  57. More articles for the Wireless World Archive
  58. Recommendations for a valve amp kit
  59. 2 watt amplifier
  60. 1AX7
  61. 2 x 6as7 -> u=?
  62. Help with transformer
  63. Building a mu-follower stage
  64. ecl11 - ecl86 replacement
  65. Please comment on this grounding scheme.
  66. A tube-preamp with DSP-DAC-Touchscreen-and Music Streaming...
  67. Microphone modification help
  68. Microphone modification help
  69. First time hearing an SET
  70. Rattle can a power transformer
  71. Need better RIAA circuit for my phono amp.
  72. Input volume pot wiring
  73. Constant current heating undervoltage
  74. Some tube info that I hope is helpful
  75. Toroidal output transormers
  76. cathode bypass on opt secondary
  77. Push Pull Powersupply Test Question?
  78. Recommandation please..
  79. My new humble thread
  80. KT88 single stage pp - cascode diff amp
  81. foot switch safety question
  82. Which KT88 Brand to Buy?Sso many to choose
  83. 12ax7 perfect bias point
  84. preamplifier/driver for 807
  85. Help with Quad II hum
  86. 18K audio note output transformer
  87. Small tube amp conversion help 6x4, 6AU6, 6AQ5
  88. Hybrid never see
  89. "Next to Last" PAS Project
  90. Power supply overload
  91. Home build 6L6 pp amp buzzing noise
  92. 807 monoblocks with big PSU
  93. SET amps and crossovers.....?
  94. Sockets for 6P41S
  95. 6dj8 phono amp
  96. Jolida Score!!!!
  97. voltage boost
  98. Swinging choke value in PSUD
  99. Hum Nirvana
  100. Plates glowing on my Fender Concert after blowing fuse
  101. This weekend's reading
  102. 6550-6550A-6550B-6550C - What are exactly Differences ??
  103. Interstage Transformer Questions
  104. Vacuum State FVP5A voltages
  105. can you help me out? Sencore TC114 tube tester
  106. Steve Bench's tube crossover - Help needed.
  107. transformer design equations
  108. Retrofit idea, need advice, 6L6SE guitar amp
  109. some misc schematics, manley, rotel
  110. What happened to my tube??
  111. Tube Preamp Question
  112. Schematic for Pilot SP215
  113. Screen current through cathode resistors
  114. Gyrator design
  115. Any tips for routing heaters on a PCB
  116. 6EZ5 as drop in replacement for 6V6 tube?
  117. RIAA Preamp and equalization 12AX7
  118. Correct hum mods?
  119. Push-Pull from Stereo SE amp
  120. how to select transformers.
  121. Ultrapath or parallel feed apps. for 7591 amps?
  122. PP-UL amp with KT88
  123. Reuse these sockets and tube choice question
  124. Need help understanding this circuit
  125. Need a little help with a power supply I designed.
  126. Which tube Rectifier is good enough for 5902 tube amp ?
  127. Schematic for Masco ME-8?
  128. Transformer Rattle & Hum issue - Dynakit ST-70
  129. pio coupling caps - damaged/used?
  130. 6EZ8 (and other triple triodes) help please!
  131. Akron, Ohio
  132. 6N6P Heater and earth wiring advice
  133. united transformer corporation
  134. Capacitive v. Inductive inter-stage coupling
  135. unused secondaries on SE opt?
  136. Marco Rodint coil building info needed
  137. Scott 222B Hum
  138. how to make audio output transformer
  139. 5842 Anyone?
  140. 813 SE build
  141. Aikido LV improved psu
  142. My first HiFi project
  143. B&O 608 tube amplifier
  144. Just designed a 300b amplifier....
  145. Anyone used C3g to drive GM70?
  146. Capacitors found, have you used these?
  147. I need your help!!!!!
  148. 12au7 600 ohm output
  149. new C3g/211PSE comments pls
  150. anyone know of a source for 12 pin+ connectors?
  151. Dynaco Mark IV Power Resistor
  152. Moondog with ac on gain & driver tubes?
  153. need help again on DIY Toccata MC Phono preamp
  154. Looking for analog Tube schematic for "analogmetric 1541a" DAC
  155. newbie needs help with tube inheritance
  156. 2A3 SETs with Edcor Iron
  157. What to do with this iron (originally from PP 7355)
  158. Just for everyone's amusement....
  159. beam tetrode calculations
  160. What are the differences between LC and CLC chokes
  161. gain and mid circuits
  162. Kay 503 Schematics?
  163. Transformer Data
  164. tube B 406 triode dick's cleo 4
  165. GE Snubber, High Current DC, and Switching Capacitors
  166. Russian EL84 - Many varieties
  167. Back From the Dead- A NOS Tube Story
  168. application for ccs/gyrator board from the groupbuy
  169. Building a tube radio
  170. Three more articles for the WW Archive
  171. Amplifier antics
  172. what about a tube makes it UL recommended
  173. 6as7 p-p with transformer phase-splitter
  174. Large power push pull output transformers, say 150W
  175. I need a schematic for a amp project
  176. Preamp resistors calculation for http://www.shine7.com
  177. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  178. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  179. Vintage tubes
  180. Amp PSU standby and PA switching
  181. 245 tubes
  182. Vacuum tube clock radio
  183. First Project, need some help
  184. Graetz Scerzo Schematic
  185. simple se 2a3 amp help!!!!!
  186. 5bc3 rectifier
  187. Help me improve this PSU. (6c33 set, voltage doubler)
  188. Choke Loaded Driver Load Lines Question
  189. CCS and tube aging
  190. Tetra lives!!!!!
  191. Tube shops/supplies in Brisbane/Gold Coast
  192. AC VT25 filament?
  193. Let's show go on: Building Monster SE!
  194. Mystery 6AQ5A powered chassis?
  195. 6Y6G tube for low-voltage SE amplifier?
  196. Jolida gain and negative feedback?
  197. 1/2 of the tube for each channel?
  198. Problem with Legacy pentode driver stage
  199. 845 Operating Point
  200. Tube rectifiers
  201. D76 Inrush current limiter thermistor?
  202. New to Tubes? How to get the basics, read on..
  203. interstage tansformer impedence
  204. 2 PSU sharing the same Power transformer?
  205. Biasing amp
  206. CCS placement
  207. clueless on console
  208. 5E3 Build Problems Cont'd
  209. Popping in stepped volume control
  210. 6by5 CRC Values
  211. Is this do-able?
  212. PCB for Gary Pimm's CCS & SS Pentode
  213. EL86 Single Ended PP Power Amplifier
  214. Diyhifisupply Billies - dead OPTs?
  215. 6H30P-DR
  216. Tube AMP and stax headphones....
  217. soft start power supply for dynaco st-70
  218. The Telefunken EF86?
  219. Can you run parallel circuits from a rectifier?
  220. Mullard 5-20 with 6L6GC's?
  221. Adding balanced input to 6N1P tube.
  222. Partial feedback (anode grid) with cathode follower
  223. 4P1L as First gain stage or in Pre-Amp..?
  224. Advice on 6418 design requested
  225. Shorting jumpers for octal sockets
  226. Tube lineup in an Admiral y4302
  227. John Broskie MIA?
  228. Audio Research VT 100 MKII need help!!
  229. Help with AD30 PSU build
  230. Who was the Japanese Amp Guru?
  231. 6922 vs an ECC82.....a test.
  232. Triode connected 6LW6 for SE
  233. 12AD7???
  234. New Book Review
  235. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  236. looking for hi volt commercial power supplies
  237. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  238. ECC85
  239. Pioneer 304B fm/am reciever schematic
  240. ECC82 JJ Made in Slovak Republic!?
  241. Definition of matched
  242. Polycarbonate as coupling caps?
  243. pick tubes for tubecad unbalancer
  244. OPT for EL34
  245. 12v dc tube amp/pre high SQ
  246. Better than 12au7?
  247. Amps and 4-ohm loads
  248. What is the "best" tube amp / speaker / source you have ever used?
  249. 814 as Triode / Max. Ug2 voltage
  250. valves better than solid state?

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