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  1. tube pedal plate voltages?
  2. grounding and 12AV6 diodes
  3. 6as7 Pse
  4. Looking for datasheets
  5. Ping Albert from Canada
  6. Old Tektronix booklet
  7. fisher 800c phase inverter adjustment 2
  8. Quick Transformer Question
  9. Power supply for Heathkit
  10. low-power output tube quality
  11. Conn Caprice organ
  12. Conservation of tubes
  13. Brimar EM87
  14. Tube sockets without the ceramic carrier.
  15. SET with tube-based CCS???
  16. fisher 800c modifications
  17. Bottlehead meet.
  18. Tie cathode to heater??
  19. anyone seen it tried like this?
  20. What do people think of the SETH 2A3 PP?
  21. Very high plate voltage EL34 amp
  22. How About Bridging SE
  23. Fisher 800c Has Odd Cathode Reading
  24. What part of DIY do you LOVE?
  25. Priboi tweakers ?
  26. 5751 and 12ax7
  27. LM317 + ceramic cap Q
  28. Derive Triode Curves from Pentode Curves?
  29. 7701 distortion device?
  30. Looking for the perfect giftshop
  31. 300b
  32. Choked ripple killer for SE?
  33. Dynaco Kits
  34. Positive bias for tube CF?
  35. need help
  36. Xindak attenuation for use with Leak Stereo 20, help please
  37. Series heaters = small problem?
  38. Recommend an EL84 tube for HIFI
  39. Help - need some info on this valve amp, please
  40. H. Olson's amps
  41. 12AT7 and the Simple EL84
  42. New K-12g only one channel working
  43. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  44. Rauland Borg 6L6 amp Need Info
  45. Hum Noise!
  46. Tube regulator for solidstate devices
  47. 6gu7 a sub for 6cg7/6fq7?
  48. obsession sd-600 300b mono block
  49. how do you know you need matched pair?
  50. Nobu Shishido's 805 SET interstage
  51. KT88SE, turning OPT
  52. New to tubes.
  53. OB with.......well, TL Audio's iTUBE :)
  54. Matched tubes required?
  55. GU-50 output trafo
  56. Are Hammond power transformers good enough ?
  57. Transformers.
  58. Quicky - magic eye between preamp and power stage
  59. HT to rectifier
  60. 6AV5 spice model
  61. Audio Research LS2 from 110V to 220V
  62. 6V6 PP power xfrmr
  63. I think I've damaged my amp
  64. Which brands apart wyetech uses Grounded grid?
  65. Parallel vs. series filament supply - or another filament idea
  66. 6146W Power Amplifier. Please help!
  67. grommes 511a mono tube amp/reciever
  68. First phono needs QC
  69. Meixing 3008ab problems
  70. protecting a VR tube
  71. what's the purpose of pins 3 and 7 in an 8pin VR tube?
  72. help me i need schematic of Music angel PP el34
  73. How long to pre-heat filaments on 6SN7s?
  74. Amplifier Layout - Help & advice needed
  75. Any good places to shop for diy in beijing?
  76. White CF with 6SN7
  77. Cheapo Guitar Amp
  78. Power Amp
  79. is there any sound in a 30A5 / HL94 ?
  80. the hybrid one
  81. 4-1000a se subwoofer amp
  82. ear 834p output resistance
  83. Output transformer push pull
  84. Cheap Lunch?
  85. Source for Alps RK18 pot's..?
  86. Triode strapped tetrode
  87. ok, help me out here......
  88. Homebrew Toroid O/P Tranny
  89. GIBSON GA-79RVT Stereo Cab plans or dims
  90. strange noises from ECL86 amp
  91. Retouching knicks and scratches on chassis
  92. MingDa MC-7R noise and gain
  93. start-up sequence of Aikido preamp / SS power amp
  94. Driving a 6B4G with a single 5687/7044/E182CC?
  95. phono stage with different replay equalization?
  96. Lprimary variation in pair old opts
  97. 8417 triode connected tube data
  98. 5763 = El84?
  99. 5687 to 6L6 SE ?
  100. TubeCad Feedforward Shunt Regulator
  101. "12EA6" Pentode !
  102. Marshall EL34-100/100
  103. short-circuit rectifier EZ80 !
  104. Good radio tube:6AQ5/6005
  105. Replaced pulled tubes with a resistor?
  106. Choke input PSU, drawbacks?
  107. Heater PS alternative / Redux
  108. Gold or silver dress-up rings for tube amps.
  109. 50C5 conversion
  110. Sa-5.1 blow fuse
  111. Hum problem of preamp
  112. Chassis ground blows fuse
  113. 7193 (2c22) preamp buzz/hum
  114. Se Opt
  115. Does anhone use those switching power supply for the heaters?
  116. Tube Minidoc, featuring New York Noise
  117. Help Choosing A Sowter Trans For My DAC?
  118. fisher 800c clipping at ultra low volume
  119. "audiodigit" tubalizer & tubepre original schematic
  120. Dht Guitar Amps
  121. rating of series caps
  122. F704
  123. tube socket PCB library or dimensions
  124. motorboating
  125. 6AN8 Triode connection + EL 84 PP
  126. Please help amend 6AS7PP circuit
  127. El84 Pp
  128. 6V6 Ultralinear
  129. Dear Moderators
  130. 845 se
  131. Bell 2122-B integrated amp - tube suggestions
  132. Wirewound pot for Rk
  133. KT88/90 F2011 Schematic
  134. United Electric 967
  135. Scott 222c mods...?
  136. Switching supply for 300B filaments
  137. ECF80/6BL8
  138. 24v tube buffer & line stage schematic
  139. Vintage gear hunting
  140. Seperate PSU Transformers? Filament Supplys?
  141. 828 is better
  142. Hum on a choke loaded stage
  143. SE Transformer question
  144. Design question - How to make amp porn visible?
  145. Leak Stereo 20 - Johan's Square Wave Theory
  146. K-12G First Time Build
  147. Vishay vt52-55 resistors in a tube amp
  148. EL84 Push-Pull ccs bias
  149. Eight 807's in Push Pull?
  150. Working with Current O/P DAC Chips
  151. Unison research Preludio schematic
  152. Rewinding Power transformer
  153. Information needed on RCA SPECIAL RED TUBES
  154. Score?
  155. Herron phono
  156. tube preamp + SS power amp.
  157. Puzzler
  158. HI-Fi 6p13p
  159. Resistor values
  160. To chassies SE amp,PSU question
  161. Grounding & board Layout questions
  162. Look for a beefy driver tube.
  163. ECC81
  164. 5687 v.s. 6922 preamp/xover
  165. amorphous iron core good or not
  166. Pre-Amp
  167. submini tube preamp is a success
  168. Roll off frequency.
  169. Materials Technology for Electron Tubes by Walter H. Kohl
  170. Grundig TK 46 manual
  171. I'm anti-expensive audio parts but man, a good capacitor can make a difference
  172. How to determine a tube is shorted?
  173. Power supply problem
  174. SS power trans for tube experiments
  175. how to set output current on G Pimm's CCS circuit?
  176. Tube testing questions
  177. Push Pull Output Transformer wiring problem
  178. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  179. Stepped attenuators vs. Carbon pots
  180. hum/buzz with pot all the way up
  181. Cap and resistor types in guitar tube amp
  182. VacuTrace ... In Chicago?
  183. Lifesaver question on earthing
  184. Affordable, but good attenuators?
  185. Gu50 Set ?
  186. mounting an EL34 upside-down
  187. Direct coupled PP 2a3 amp - maths needed!!
  188. My 1st scratch build complete......
  189. Very Basic EL84 or EL34 DIY Amp
  190. Curcio Daniel Preamp Mods?
  191. Tube designs: 45 driving 45/2a3/300b?
  192. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  193. Marantz 8 B : Output Transformer
  194. has anyone used a fan on their project?
  195. Audio Research SP12 heater arrangement
  196. tv damper diodes
  197. volume pot quite close to a tube - is this okay?
  198. UTC s42 special series
  199. 6H30P preamp schematics
  200. Digital potentiometer corrupt tube amps
  201. Alternative filament supply for 01A line stage
  202. Lamination Size
  203. Yaqin MC10L and KT88
  204. Help me read tube data sheets
  205. Quick Question (Driving 6L6GC's)
  206. Cause for concern -- scorch mark in tube
  207. why not 10k pot
  208. Dynaco Stereo 70 Output Transformer
  209. 6CJ3 rectifier or 6D22S rectifier
  210. Back-to-Back trannies
  211. Spring Reverb transformer
  212. Hamfest in Toronto area next weekend
  213. st70 bass response
  214. Triode "Champ" transformer v Edcor
  215. Low vs High aka Series vs Parallel Filaments
  216. Bogen monster MO200A schematic
  217. The Great Tempe Audio Shootout
  218. opinions on this p-p kt88
  219. Any XLR Tube Buffer Plans?
  220. Mystery transformers
  221. I need help with my next project
  222. A thought on Cathode feedback
  223. EL34 SE, direct coupled
  224. Ccs
  225. Hybrid amp: ECH83 + TDA2030A
  226. Leaving tube preamp always powered on.
  227. Variable 6922 heater to cathode voltage limit...?
  228. Is this risky?
  229. What to do with some WE tubes and others
  230. 6B4G SRPP
  231. pentode in triode mode SE vs a DHT SE like 2a3/300b
  232. dynakit decware bottlehead ... which to pick
  233. 6JC6 triode strapped?
  234. Searching for Raw Turrets
  235. Help.. EZ81 power supply diagram
  236. Ear 8l6
  237. Bogen H-30 guitar mod
  238. Voltage measurements from a blown 5AR4 vs. good 5Y3
  239. Sanity check on a 2A3 ultrapath with Pentode driver
  240. Star ground with dissimilar metals: concern?
  241. 5AR4 marked as 5V4GA?
  242. Calculating cathode bypass cap.
  243. Please need help! TUBE BIAS PROBE
  244. Aikido Phono Stage
  245. Using an El84 as a driver
  246. Transfromer value of this 300B circuit
  247. Chassis Layout & PS questions
  248. help needed for 1st DIY tube amp - Sakuma 845 SE
  249. Ideas for 4v filament triodes/pentodes
  250. Comments on Power Amp Viability

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