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  1. Rock and Flame: Wavebourn Barracuda
  2. Low voltage rectifiers?
  3. Horz Sweep amp Pent or screen drive
  4. Lessons learned building a 5VDC Power Supply for a 300B heater
  5. Getting frustrated--- amps and speakers for the noob
  6. Smallish chassis feasible? Multiple pics
  7. Using a Maida Regulator with a CCS
  8. Which Aikido pre-amp PCB for a newbie?
  9. Newbie wants to build Tubelab SE Monos.
  10. FM transmitter / PA
  11. What value attenuator would you use in front of a 396A in a preamp?
  12. Hybrid OTL Circlotron idea
  13. Heathkit aa-121
  14. Help please checking my B+ design
  15. Selenium rectifiers
  16. isolation transformer - high voltage.
  17. Cathode Bypass in a PP Output Stage
  18. Mcintosh Tube Amplifier Protection Circuit
  19. Where to start? Or: cool these plates down
  20. epiphone pacemaker 50 t
  21. Hum trouble on old PA amp
  22. Crazy newbie tube driver question
  23. UHF tubes for audio?
  24. Suggestion for this tube preamp
  25. PCB Board software?
  26. 300B push pull amp
  27. Simple P-P 84 proto
  28. Keeping cost down?
  29. Tube Amp Kit for newbie
  30. 40% Tap direct to plate
  31. Funny bias problem in PP EL34. Please help
  32. Transformer from Heathkit A-7 amp
  33. Any tube stores in Burnaby, Vancouver, Canada?
  34. B+ time delay circuit - your comments
  35. PCB mount line input transformer question
  36. SRPP circuit question
  37. Russian tubes - what pin material?
  38. Auto-bias - easy to convert to or not?
  39. old style anode/grid caps
  40. 6H30 Dual Triode
  41. Why would the frequency response vary so much on a pair of Monoblock amps?
  42. Disassembling output transformer
  43. Tube sockets
  44. H. P. Friedrichs
  45. The Rebuilding of Theta KT-88 Tube amp.
  46. Please check my PS pcb board layout for problems????
  47. glass capacitors
  48. Help w/fixing counterpoint Sa7 preamp
  49. IXYS 10M45 CCS IC question
  50. Wing-C 300B tubes and opinions
  51. PX25 DRD Power amp.
  52. rectifier tube recommendation please
  53. 6C33C to more standard triode conversion - any ideas?
  54. PP EL84 Build Questions (Bevois Valley)
  55. Tube line stage output impedance
  56. volume between gain stages
  57. Dyna ST70 PWR Tranny 6.3V Crnt Spec?
  58. Next Project - Darling Amplifier or 45
  59. tube magazines
  60. PSU choke help please
  61. PCB Trace properties for PP tube amplifier ( 12AQ5, 6v6 etc)
  62. TubelabSE phase
  63. EML 300B XLS and Mesh comparison
  64. UL - triode switch
  65. Spud anyone?
  66. Nooo! Almost have this amp built!
  67. Need help - Old cap can ID
  68. 16SL7+6SN7 Aikido
  69. 1600Hz Transformer?
  70. Anyone have a Bogen MX 60 Schematic they can post
  71. mc100b burned up
  72. DC heating, parallel diodes
  73. Identify Amperex Tube?
  74. Which speaker tap when going from UL to triode
  75. Tube wont bias...
  76. DIY stepped attenuator
  77. TV-7/DU KT88 Settings?
  78. Filmosound - Tone Knob - Tertiaries
  79. Hybrid Amp, Tube+MOS FET SE
  80. 3.1 integrated possible?
  81. Plate choke material, why to use amorphous core?
  82. Anything obviously wrong with my mic pre amp ?
  83. K-502 or Yamaha RX-V361 for Klipsch F-1?
  84. Help diagnosing phase-splitter
  85. question about Bruce's GGP preamp
  86. Rickenbacher amp HELP!!!
  87. interpreting max. values listed in datasheet
  88. zenith mlt 15 console record player problem
  89. ORIENTED or Not ORIENTED cores for OPT
  90. Audio Research SP-3-A-1 modified.........
  91. Tube heaters in series.
  92. Output transformer listening impressions?
  93. Tube buffer 6H6P after a DAC
  94. S-5 K16LS in enclosure - Pics
  95. Time to mourn the death of Broskie's Tube CAD blog?
  96. 6N6P preamp
  97. our Preamplifier using 2J27S tubes
  98. dc filament design question
  99. 6AV6A for meter driver
  100. AC wiring heaters, A or B ?
  101. Aikido preamp muting
  102. Help! New Yaoin MC-100B with intermittent crackling noise from speakers
  103. hummming YAHA
  104. leave a variac on all the time!
  105. More triodes
  106. Full Wave Rectifier
  107. Blowing B+ fuse
  108. PSRR of CF w/ CCS Sink
  109. MENG Series "EL34B" Integrated Amplifier
  110. Concertina Parafeed, or How to mess with OldEurope's mind...
  111. Phono stage success!
  112. A few pretty pictures and an ugly picture
  113. Rectifier with slow start up?
  114. Calibrating an emission tester
  115. What is this?
  116. 4XKT88 drive
  117. EL84 driven 2a3
  118. need suggestions for "standarizing" tube gain stages
  119. How long until someone tries
  120. Hickok Photo History - hidden web gem!
  121. Common Audio Tubes in standard use
  122. tango input transformer NN-6
  123. Filmosound dual pot
  124. Hi power Moskido with A/B output Bias
  125. how easy to make tube amp?
  126. metal film resistors or carbon?
  127. Quad II tubes replacement
  128. Sirius & FM
  129. Can someone look at a Counterpoint SA7 for me?
  130. The Wintersweet High-Vividity Project
  131. loftin white 801 amp
  132. Pics of unique design of amp chassis?
  133. Heathkit AA-32 modifications / upgrades
  134. Tango XE-20S Specification
  135. Question about Edcor output transformer
  136. SE EL84 output stage?
  137. New ST-70 Driver board from Blackburn Audio
  138. Transformer primary rating question
  139. Heathkit A7(c?) Rebuild
  140. Rewiring a socket to take 6GK6 instead of 6BQ5
  141. 317 CCS Question
  142. Active filter design software
  143. Larry Moore 10Y Squared
  144. Do you hear “pop” when you turn off your amp?
  145. Filmosound - Guitar - Ground
  146. Simple tube phono stage
  147. Tube phono amp repair/redesign help wanted
  148. Repairing a tape echo with tubes (Dynacord Echocord Super 62a)
  149. tube newbie needs guidance
  150. Interesting linestage optimizing ideas
  151. Powered up my Lafayette 224A for the first time!
  152. Hickok Upgrades
  153. Passive BP filter sim results
  154. 100mA heater tubes for phono
  155. Audiotester + M-audio - info + question
  156. Indestructible HV hybrid regulator!
  157. yet another modified 5-20 amplifier
  158. help with OT for 15 watt tube amp
  159. Power supply for 12SL7 phono preamp
  160. few questions
  161. mystery 5881
  162. does lower B+ cause scratchy distortion?
  163. SY please keep us updated about your site
  164. Cleveland Ohio members?
  165. Scope tricks for detecting rectifier/choke switching
  166. To choke or not to choke
  167. Tube rectified LC PS for 6SN7 Aikido - choke DCR question
  168. Convergent Audio Technology (CAT) SL-1 preamplifier
  169. Very low current CCS?
  170. Morgan Jones' E88CC Phono
  171. pse help, unity µ triode as a phase inverter
  172. variable capacitor volume control
  173. What to do with P-P transformer ?
  174. 837 tube for SE Amplifier
  175. calculating transformer current draw question
  176. glass audio 1995 "Single Ended Glory"
  177. Manual for Heathkit AA-121 Power Amp
  178. Low gain triode recommendation plz
  179. Tubelab PP question
  180. Output transformer impedance question
  181. Choke... The side makes difference?
  182. Tubelab...Why "sandy" SE amps?
  183. Fostex Meets Pentode I need some NFB
  184. Oddball Sweep tubes in PP
  185. Noob - where to start?
  186. big doubt: dynakit st35 VS diytube st35clone
  187. Compactron Output Tubes
  188. XPP amp
  189. Tubelab SE ... which 5AR4 ?
  190. Getting only 400 hours on Class A2 PP tube
  191. Pete Millett's 829B amp -> monoblocks
  192. 6JU8A Spec confusion
  193. post on amp design by a newbie
  194. (INDIA) ECC802S/EL84 build, hardware requirements
  195. 6gw8 /ECL86 El Cheapo modifications
  196. Danielak's 300B design
  197. 6080 @ 800µA Question ...
  198. Groundplane layout theory
  199. delay on for 83 mercury vapor
  200. Anyone tried "Weber Copper" SS rectifyers?
  201. Scored a bunch of tubes at HamCon
  202. AB2 Anyone else done similiar
  203. 6v6 pp amplifier
  204. Loud 60 cycle Hum from tube amp.
  205. Building a Preamp
  206. another Big One....:)
  207. JJ factory pictures ...
  208. Good enough CFs
  209. What's a good way to clean tubes w/o taking off the labeling?
  210. 6BX7 or 12B4A for small SE amp?
  211. Schematic collection posted by a kind soul...
  212. Dumb question, but...
  213. Zen Quad 22
  214. I'm baffled -- 6AK6 push-pull amp
  215. pin count question
  216. 1G3 Max Dissapation?
  217. Edcor Transformers
  218. 12EL6 preamp
  219. Request for EICO HF-20 experiences and ideas
  220. So would this work?
  221. A valve pre amp for my disco and electric guitar.
  222. Small-signal (or small power) pentode that can handle 400V (or more)?
  223. Are 6GM8's rare?
  224. How to lower mains voltage using resistors
  225. Music angel XD-SE EL34
  226. Potential project for some inherited transformers
  227. Car Tube Amp?
  228. Marantz 7 Preamp
  229. Euridice pramp but with 45
  230. Tubelab SE Parafeed Monoblocks (5 channel)
  231. Can 6AK6's take high voltages?
  232. Tube equal to one section of a 12AX7?
  233. HK 'Deuce front end on G2 drive output stage?
  234. Direct-coupled cathode/source follower driver in PP?
  235. CCS power supply loading..
  236. Photo Gallery -- Simple SE build
  237. Buying vintage good tubes
  238. current tube manufacturers and or brands
  239. PSU with TL783-question
  240. Hashimoto H-20-7U for 6v6 in triode SE..?
  241. Speakers impedance
  242. mesh plate el34 (supereTNT)
  243. Tagboard amps
  244. 807 single ended guitar amp
  245. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  246. 6CL6 vs. 12BY7A
  247. Suggestions for a good tube line amp
  248. 12el6
  249. High Squareness Ratio of a Transformer
  250. What causes a tube to crack?

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