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  1. Traced an old valve with no specs - thoughts please
  2. Dynaco PAS 3X PSU mod
  3. Best sounding 500v. electrolytics
  4. CCS's for CCD line amp?
  5. tube life
  6. For tube amps w/ high output Z - Parallel R cross spkr?
  7. High and low impedance output preamps
  8. LTspice and simulating tube circuits?
  9. Cheap & Well Made Chinese SE EL34 Amp
  10. Heathkit transformer replacement...
  11. Integrated amp will not turn on
  12. EL34, Claus Byrith amplifier, mains noise problem
  13. Need a proposal for a stereo amp
  14. 12AT7 Headphone amp
  15. 6l6/12ax7 schematics please
  16. Hybrid bridge with jfet OS
  17. Please allow me to introduce myselft
  18. Chassis Source
  19. Is my 6L6 amp damaged from EL34's
  20. VISHAY VTA 55 Bulk Metal Foil Resistors?
  21. High-Voltage Power for 6 stage pedal
  22. 10 megaohms??
  23. E180F V EF184
  24. help on gain calculation with transformer for SE tube
  25. Working with constant current charts
  26. Hum and noise in small amp
  27. My project (6c33SET)
  28. EZ260A Grommes 260A Project
  29. 18A5 sound fine in triode mode ?
  30. 6GF5 sound fine in triode mode ?
  31. Muddy 6V6 Power Amp?
  32. GM 70 Schematic needed!
  33. tube simulatie models.
  34. building vacuum tubes... some questons
  35. Hot Rodded Dynaco ST-35 - Dynakit Parts Kit
  36. Fixed bias on small signal pentode
  37. Buffer preamplifier
  38. 7027a testing
  39. decade bank values for a plate current tester
  40. anyone know the dimensions of a dynakit st-70 pcb?
  41. Help on designing full DHT SET power amplifier
  42. dc coupled volume pot value
  43. 20W OTL with 6N5P, Opinions...
  44. Finding parts
  45. Tube's JLH hybrid solution
  46. Curtis Mathes Console / TV receiver
  47. Marantz 8b feedback circuit
  48. Noisy volume pot with some tubes but not others
  49. Found an Eico HF-86 for sale, is it worth it?
  50. Aikido all in one heater issue
  51. Need a little help with Chinese tube Preamp
  52. Choke Loaded Const. Current Draw Amp
  53. 6550 SINGLE-ENDED AMPLIFIER
  54. Balancing pp driver stage
  55. P-P 6C33
  56. Need help with Cornet 2
  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. This weekend's reading
  101. 6550-6550A-6550B-6550C - What are exactly Differences ??
  102. Interstage Transformer Questions
  103. Vacuum State FVP5A voltages
  104. Steve Bench's tube crossover - Help needed.
  105. transformer design equations
  106. some misc schematics, manley, rotel
  107. What happened to my tube??
  108. Tube Preamp Question
  109. Schematic for Pilot SP215
  110. Screen current through cathode resistors
  111. Gyrator design
  112. Any tips for routing heaters on a PCB
  113. 6EZ5 as drop in replacement for 6V6 tube?
  114. RIAA Preamp and equalization 12AX7
  115. Correct hum mods?
  116. Push-Pull from Stereo SE amp
  117. how to select transformers.
  118. Ultrapath or parallel feed apps. for 7591 amps?
  119. PP-UL amp with KT88
  120. Reuse these sockets and tube choice question
  121. Need help understanding this circuit
  122. Need a little help with a power supply I designed.
  123. Which tube Rectifier is good enough for 5902 tube amp ?
  124. Schematic for Masco ME-8?
  125. Transformer Rattle & Hum issue - Dynakit ST-70
  126. 6EZ8 (and other triple triodes) help please!
  127. Akron, Ohio
  128. 6N6P Heater and earth wiring advice
  129. united transformer corporation
  130. Capacitive v. Inductive inter-stage coupling
  131. unused secondaries on SE opt?
  132. Marco Rodint coil building info needed
  133. Scott 222B Hum
  134. how to make audio output transformer
  135. 5842 Anyone?
  136. 813 SE build
  137. Aikido LV improved psu
  138. My first HiFi project
  139. B&O 608 tube amplifier
  140. Just designed a 300b amplifier....
  141. Anyone used C3g to drive GM70?
  142. Capacitors found, have you used these?
  143. I need your help!!!!!
  144. 12au7 600 ohm output
  145. new C3g/211PSE comments pls
  146. anyone know of a source for 12 pin+ connectors?
  147. Dynaco Mark IV Power Resistor
  148. Moondog with ac on gain & driver tubes?
  149. need help again on DIY Toccata MC Phono preamp
  150. Looking for analog Tube schematic for "analogmetric 1541a" DAC
  151. newbie needs help with tube inheritance
  152. 2A3 SETs with Edcor Iron
  153. What to do with this iron (originally from PP 7355)
  154. Just for everyone's amusement....
  155. beam tetrode calculations
  156. What are the differences between LC and CLC chokes
  157. gain and mid circuits
  158. Kay 503 Schematics?
  159. Transformer Data
  160. tube B 406 triode dick's cleo 4
  161. GE Snubber, High Current DC, and Switching Capacitors
  162. Russian EL84 - Many varieties
  163. Back From the Dead- A NOS Tube Story
  164. application for ccs/gyrator board from the groupbuy
  165. Building a tube radio
  166. Three more articles for the WW Archive
  167. Amplifier antics
  168. what about a tube makes it UL recommended
  169. 6as7 p-p with transformer phase-splitter
  170. Large power push pull output transformers, say 150W
  171. I need a schematic for a amp project
  172. Preamp resistors calculation for http://www.shine7.com
  173. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  174. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  175. Vintage tubes
  176. Amp PSU standby and PA switching
  177. 245 tubes
  178. Vacuum tube clock radio
  179. First Project, need some help
  180. Graetz Scerzo Schematic
  181. 5bc3 rectifier
  182. Help me improve this PSU. (6c33 set, voltage doubler)
  183. Choke Loaded Driver Load Lines Question
  184. CCS and tube aging
  185. Tetra lives!!!!!
  186. Tube shops/supplies in Brisbane/Gold Coast
  187. AC VT25 filament?
  188. Let's show go on: Building Monster SE!
  189. Mystery 6AQ5A powered chassis?
  190. 6Y6G tube for low-voltage SE amplifier?
  191. Jolida gain and negative feedback?
  192. 1/2 of the tube for each channel?
  193. Problem with Legacy pentode driver stage
  194. 845 Operating Point
  195. Tube rectifiers
  196. D76 Inrush current limiter thermistor?
  197. New to Tubes? How to get the basics, read on..
  198. interstage tansformer impedence
  199. 2 PSU sharing the same Power transformer?
  200. Biasing amp
  201. CCS placement
  202. clueless on console
  203. Popping in stepped volume control
  204. 6by5 CRC Values
  205. Is this do-able?
  206. PCB for Gary Pimm's CCS & SS Pentode
  207. EL86 Single Ended PP Power Amplifier
  208. Diyhifisupply Billies - dead OPTs?
  209. 6H30P-DR
  210. Tube AMP and stax headphones....
  211. soft start power supply for dynaco st-70
  212. The Telefunken EF86?
  213. Can you run parallel circuits from a rectifier?
  214. Mullard 5-20 with 6L6GC's?
  215. Adding balanced input to 6N1P tube.
  216. Partial feedback (anode grid) with cathode follower
  217. 4P1L as First gain stage or in Pre-Amp..?
  218. Advice on 6418 design requested
  219. Shorting jumpers for octal sockets
  220. Tube lineup in an Admiral y4302
  221. John Broskie MIA?
  222. Audio Research VT 100 MKII need help!!
  223. Help with AD30 PSU build
  224. Who was the Japanese Amp Guru?
  225. 6922 vs an ECC82.....a test.
  226. Triode connected 6LW6 for SE
  227. 12AD7???
  228. New Book Review
  229. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  230. looking for hi volt commercial power supplies
  231. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  232. ECC85
  233. Pioneer 304B fm/am reciever schematic
  234. ECC82 JJ Made in Slovak Republic!?
  235. Definition of matched
  236. pick tubes for tubecad unbalancer
  237. OPT for EL34
  238. 12v dc tube amp/pre high SQ
  239. Better than 12au7?
  240. Amps and 4-ohm loads
  241. What is the "best" tube amp / speaker / source you have ever used?
  242. 814 as Triode / Max. Ug2 voltage
  243. musical fidelity x10d clone
  244. Acrosound 7591A amp
  245. suggestions for simple amp wanted
  246. Wish you could nail down your copper wool holder?
  247. HELP- Pricing Genuine Genalex KT77's
  248. K120 on 6550/KT88/KT90 anyone tried???
  249. do tubes ever leak b+ into heaters?
  250. How can I use these high-current, low-inductance chokes?

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