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  1. Elektra Print L-3500
  2. 300b tube cage
  3. The 'Tater Patch
  4. 2A3 Sovtek characteristics
  5. 300b filament q, yes another one.
  6. Amp repair help needed.
  7. 833a SE Peak A.F. Grid Voltage
  8. DHP driver for 845
  9. Fisher 55-a
  10. Ultralinear Miller capacitance
  11. Simplest OTL?
  12. presence control
  13. Black Gate N cathode formation voltage
  14. Any other reported fragility for 6H30pi?
  15. Help! circuit diagram
  16. Another Gm70 amp !!
  17. 833a Amp 75W SE
  18. Black Gate N-series question
  19. 300B+
  20. Koren's spice models
  21. 50 Power triode
  22. Vertical deflection tubes for audio output?
  23. warmth in different tube types
  24. OT data
  25. Sansui 1000A OPT's
  26. CF biasing and load ???s
  27. improving the Mcintosh C22
  28. An amp that melts 6L6s?
  29. 8ohm speaker on 15 or 3.5 ohm tranny
  30. Choosing a brand as a standard
  31. The power of transformation
  32. wanted- 845 pwr amp p.p.
  33. Heathkit S-33 Information needed.
  34. Leak Stereo 20 - solid state rectifier?
  35. My rebuild 6sn7gt tubes line pre-amp.
  36. CircuitMaker Vacuum Tube model
  37. Mf X-pre
  38. E182CC, E88CC SRPP at low voltage
  39. Debugging my Aikido
  40. SRPP linestage help
  41. Transformer question
  42. Tube Spice Model Problem
  43. Just found a zenith 7g01z in the basement
  44. your next level story - Philosophy of EE 101
  45. JLTI Tube Preamp
  46. squeal in amplifier
  47. ALTEC Line & Bridging Transformer Data??
  48. Tube noob needs some help on PSU
  49. Preamp PSU Design Help
  50. GZ37 Substitution?
  51. help disigning 12AY7 based mic pre
  52. I m confuse ! expert help
  53. Removing a pot.
  54. diyparadiso kits?
  55. Help with linestage power supply
  56. TX103 - RJM 6DJ8 - TX102 preamp
  57. Replace the field coil spk with Electromagnetic dynamic spk
  58. Gu50 output problems
  59. SRPP: adifferent perspective
  60. Fixed or self bias?
  61. 211 amp PSU question
  62. Help! transformer overheating!
  63. more ebay stuff
  64. 6KG6, output stage & PSpice
  65. 6C33C-B Failure Mode?
  66. manley 300b preamp schematic required
  67. 115 V transformer on 230 V ???
  68. Hoffman Amps Turret Lugs?
  69. 300B Reliablity
  70. What happens when you starve a heater?
  71. se 6c33c or se el34 schematic
  72. Altec A150C and 531B psu
  73. What's been broken?
  74. tubes here...
  75. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  76. The Beast...
  77. Looking for Mikael's KT88 Schematic
  78. 1.2k vs 2.5k TC on a 6550 amp?
  79. Ultimate Tube head phone amp.
  80. Selecting Output Transformers for My WOT Line Preamp
  81. Tube microphone
  82. OP tube convertible PP amps?
  83. The "Valvolozzo" - SE amp with torroids
  84. Phase Splitters
  85. A new setup, advice wanted
  86. 6e2 Magic eye datasheet
  87. Another linestage......
  88. VT52: are the triode and pentode alike?
  89. Long term planning
  90. vintage restoration
  91. Some doubt about my first Tube amp (Heater).
  92. Power supply for Single Ended Amplifier
  93. Another CD player DAC tube modification
  94. philips el6400 tubeamp
  95. How much power do I really need?
  96. 6H30 phono with passive RIAA
  97. I need help troubleshooting a EL84 push pull amp.
  98. Tube Data needed please
  99. Filament Transformer
  100. strange tube
  101. 12AX7 and 12AT7 numerical data
  102. DC/DC converter to power tube amp?
  103. Basic Cathode Follower buffer
  104. Help me!!! I need schematic of Pow-Amp using 6V6
  105. gi30, se pentode?
  106. Any experience with Chinese 6N8P
  107. Source for common mode chokes
  108. Low Power FM stereo transmitter?
  109. Rh807
  110. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  111. Question about sub out on amp
  112. opt question
  113. Tube socket wanted. (help where)
  114. voltage regulator using ECL84 + OB2
  115. Help! 6sn7GT
  116. tubes n needles
  117. PSpice/LTSpice model for 6AU6/EF94?
  118. 5AR4/GZ34 GT Britain
  119. CCS vs mu-follower. What's the difference?
  120. Need advice on two preamp kits.
  121. My First Tube Amplifier
  122. Output (beam) pentodes / tetrodes suitable for screen grid drive
  123. Patent applications of interest
  124. Rca
  125. Melos GK-1 Tube Pre-amp Schematic needed ...
  126. 6L6s and 6AR6s - what can I do with them?
  127. Line stage preamp, based on SY's "Heretical Unity gain line stage"
  128. 1600v HT supply for scope.
  129. Mc 275 CE schema
  130. Help! is this work?
  131. Some questons on a DIY system.
  132. pinout on 6GT5A tube
  133. 50Hz hum after increasing grid stopper
  134. A Heretical Unity Gain Line Stage part II
  135. 832A Push Pull 5W
  136. PSpice/LTSpice model for 12AY7/6072 wanted
  137. Is this circuit I drew ok?
  138. Suggest a preamp for cd/tuner
  139. EL84 to 6l6
  140. Tube-cad, is it worth the $40?
  141. Grounded Grid Preamp Project And Possible Group PCB Buy
  142. Can anyone sujest a good operating point for the PL84
  143. Preamp hiss noise
  144. Audio Note Trans 205 specs?
  145. Help translating russian tube datasheet
  146. Very high output level!
  147. Help wanted with valve data
  148. Boiling sound...
  149. Negative Feedback Ground
  150. low power SE with 813
  151. KT instead EL
  152. a single double triode and two chanel?
  153. 76 driving 211?
  154. My Experience with "Music Angel" EL34 PP
  155. 12JT6 in triode mode curves needed
  156. Where did these EL84 numbers come from?
  157. int. low signal
  158. FFT analysis-Truth or Consequence
  159. 6sn7gtb Filament Voltage
  160. Help with Tube Buffer for passive pre
  161. Is there a 12CM7?
  162. 12ax7
  163. tube driving the same tube - whats the collective word?
  164. 6c33c PSE
  165. 75% of rated max. current too high?
  166. ST shaped tube
  167. Tube Phono Pre of RJM
  168. how to determine P1 from P2 of a Push-pull transformer?
  169. fisher x100a
  170. Please review EL84M PP design before I order parts.
  171. Auction Gem Motorola? Go Figure!
  172. Darling amp plate voltage
  173. Sound quality of 6C4C is same with 2A3?
  174. 6,3VAC to 6,3VDC
  175. EL84 push pull idea
  176. Marantz preamp clone for newbie?
  177. Can I use Philips TB2.5 /400 in a SE ampl.
  178. Microwave + Computer = Tube? [help!]
  179. Plate Choke Miller Capacitance
  180. Anyone interested in building an EAR 834P?
  181. tube pre-amp
  182. Choke For Supply B+ Diy
  183. Audio Note DAC4 SRPP output stage problems!
  184. Regulated Dc Question
  185. what about tubes?
  186. Please help choose amp layout.
  187. SE 813 OPT..Am I On the right Track?
  188. say it's a hum problem
  189. Affordable KT88
  190. With transformer or OTL ?
  191. 45 SE tube amp OPT
  192. 2 Bogen 7027 tube amp vintage amplifier mono block
  193. Newnewbie Ouput Tranny question
  194. Webcor Amplifier Speaker
  195. could 24A been power tube
  196. How's this for a first amp?
  197. U.K. transformer supplier
  198. stereo el34 + kt66?
  199. Very tempting Good invesment or not????????
  200. A Heretical Unity gain line stage
  201. NFB net gain or loss
  202. Different brands:Is there any difference?
  203. McIntosh 225 Schematic
  204. LM317 for power amp regulation?
  205. KT88 or 6550?
  206. How to choose 6c33b?
  207. Using rectifier tubes in parallell
  208. Small problem at power off
  209. Preamp rebuild - hum problem
  210. what should I do with this tranny???
  211. Will this 2A3 PSE work?
  212. Ec86
  213. Worth to buy - tubes?
  214. 10/10/ preamp
  215. what do you think of this preamp?
  216. Tube FM -- Armstrong's first bdcst commemorated
  217. rjm 6dj8 phono section
  218. mercury vapor rectifier tubes on e-bay
  219. Russian Tube Stuff -- WSJ
  220. Help Please!!!!!!
  221. 5902 amp schematics?
  222. Microphonics...........
  223. High voltage PSU
  224. 2A3 v 6550
  225. Coupling cap question
  226. Wollcott cross coupled circuit
  227. TAD Tubes where are they from?
  228. ebay Junk or Treasures?
  229. interconnects
  230. In few words
  231. GlassFET Design Ideas
  232. ecc88 tube pover supply-rect.
  233. A tubeNoob enters => I bought a Dynavox VR-70E
  234. Heater Supply using LM3X7 current source
  235. Stepdown input trafo
  236. increasing the bias will cause the amp to.....
  237. Transformer faulty?
  238. More crappy Russian EL34s - Svetlana this time
  239. My Tragic story about Emission Labs tube
  240. Please help me solve the problem
  241. amp freq response with o-scope
  242. Can you SEE (construction) how a tube SOUNDS?
  243. CCS fed shunt regulators
  244. Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp
  245. ebay toys
  246. Source for 6c45pi's???
  247. phono preamp design for c3m postie valve
  248. McMartin MA-50 Troubleshooting
  249. looking for something different
  250. mc275

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