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  1. Anode Loading Vs. Cathode Loading ?
  2. Purist 2 Line Amp
  3. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  4. radio receiver
  5. Help Vintage Guitar Hummer
  6. Pioneer SM83 and 500k pot
  7. How many ways to connect a pentode...
  8. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  9. Any pitfalls to tapping voltage doubler?
  10. 5k to 100 or so line transformers
  11. Ongaku 211 and Supravox 215
  12. Help with 6B4G PP amp.
  13. Help me build my Choke I/P preamp PSU
  14. Pinging "DoomPixie"
  15. 6L6 mono amp questions
  16. Help on 300B power trans...
  17. Spud Farmin' Pt. Deux
  18. No Zen
  19. Reuse or rewind choke
  20. Bell Sound Mono Integrated Amplifier
  21. Help with Melos SHA repair
  22. diy guitar tube amp help.
  23. Phase splitter transformers
  24. 6v6 schems
  25. Cathode feedback
  26. Is this a good choice for El34 PP
  27. 6DK6 amp schematics?
  28. so who here builds amps
  29. 3:1 Line Input X-former ?
  30. * 35 watt * 300B SE = super 300B + Class A2
  31. Quirk in Mullard 5-20 circuit
  32. LL1673 as anode load?
  33. preamp/power amp matching
  34. 0A3 and pentode questions (quickie)
  35. where to find transformer to use
  36. C core output design
  37. Unusual Motorola Console
  38. Improving the Aikido line stage...
  39. Poll..anyone interested in an Aikido linestage PCB group buy?
  40. New 6s45p compare to NOS?
  41. Elektra Print L-3500
  42. 300b tube cage
  43. The 'Tater Patch
  44. 2A3 Sovtek characteristics
  45. 300b filament q, yes another one.
  46. Amp repair help needed.
  47. 833a SE Peak A.F. Grid Voltage
  48. DHP driver for 845
  49. Fisher 55-a
  50. Ultralinear Miller capacitance
  51. Simplest OTL?
  52. presence control
  53. Black Gate N cathode formation voltage
  54. Any other reported fragility for 6H30pi?
  55. Help! circuit diagram
  56. Another Gm70 amp !!
  57. 833a Amp 75W SE
  58. Black Gate N-series question
  59. 300B+
  60. Koren's spice models
  61. 50 Power triode
  62. Vertical deflection tubes for audio output?
  63. warmth in different tube types
  64. OT data
  65. Sansui 1000A OPT's
  66. CF biasing and load ???s
  67. improving the Mcintosh C22
  68. An amp that melts 6L6s?
  69. 8ohm speaker on 15 or 3.5 ohm tranny
  70. Choosing a brand as a standard
  71. The power of transformation
  72. wanted- 845 pwr amp p.p.
  73. Heathkit S-33 Information needed.
  74. Leak Stereo 20 - solid state rectifier?
  75. My rebuild 6sn7gt tubes line pre-amp.
  76. CircuitMaker Vacuum Tube model
  77. Mf X-pre
  78. E182CC, E88CC SRPP at low voltage
  79. Debugging my Aikido
  80. SRPP linestage help
  81. Transformer question
  82. Tube Spice Model Problem
  83. Just found a zenith 7g01z in the basement
  84. your next level story - Philosophy of EE 101
  85. JLTI Tube Preamp
  86. squeal in amplifier
  87. ALTEC Line & Bridging Transformer Data??
  88. Tube noob needs some help on PSU
  89. Preamp PSU Design Help
  90. GZ37 Substitution?
  91. help disigning 12AY7 based mic pre
  92. I m confuse ! expert help
  93. Removing a pot.
  94. diyparadiso kits?
  95. Help with linestage power supply
  96. TX103 - RJM 6DJ8 - TX102 preamp
  97. Replace the field coil spk with Electromagnetic dynamic spk
  98. Gu50 output problems
  99. SRPP: adifferent perspective
  100. Fixed or self bias?
  101. 211 amp PSU question
  102. Help! transformer overheating!
  103. more ebay stuff
  104. 6KG6, output stage & PSpice
  105. 6C33C-B Failure Mode?
  106. manley 300b preamp schematic required
  107. 115 V transformer on 230 V ???
  108. Hoffman Amps Turret Lugs?
  109. 300B Reliablity
  110. Metal work in Toronto
  111. What happens when you starve a heater?
  112. se 6c33c or se el34 schematic
  113. AVO MkIV User Guide
  114. Altec A150C and 531B psu
  115. What's been broken?
  116. tubes here...
  117. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  118. The Beast...
  119. Looking for Mikael's KT88 Schematic
  120. 1.2k vs 2.5k TC on a 6550 amp?
  121. Ultimate Tube head phone amp.
  122. Selecting Output Transformers for My WOT Line Preamp
  123. Tube microphone
  124. OP tube convertible PP amps?
  125. The "Valvolozzo" - SE amp with torroids
  126. Phase Splitters
  127. A new setup, advice wanted
  128. 6e2 Magic eye datasheet
  129. Another linestage......
  130. VT52: are the triode and pentode alike?
  131. Long term planning
  132. vintage restoration
  133. Some doubt about my first Tube amp (Heater).
  134. Power supply for Single Ended Amplifier
  135. Another CD player DAC tube modification
  136. philips el6400 tubeamp
  137. NTE Metal Film Resistors?
  138. How much power do I really need?
  139. hey guitar playas, try this one!
  140. 6H30 phono with passive RIAA
  141. I need help troubleshooting a EL84 push pull amp.
  142. Tube Data needed please
  143. Filament Transformer
  144. strange tube
  145. 12AX7 and 12AT7 numerical data
  146. DC/DC converter to power tube amp?
  147. Basic Cathode Follower buffer
  148. Marshall EL84 20/20 schematic needed
  149. Help me!!! I need schematic of Pow-Amp using 6V6
  150. gi30, se pentode?
  151. Any experience with Chinese 6N8P
  152. Source for common mode chokes
  153. Low Power FM stereo transmitter?
  154. Rh807
  155. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  156. Question about sub out on amp
  157. opt question
  158. Tube socket wanted. (help where)
  159. voltage regulator using ECL84 + OB2
  160. Help! 6sn7GT
  161. tubes n needles
  162. PSpice/LTSpice model for 6AU6/EF94?
  163. 5AR4/GZ34 GT Britain
  164. CCS vs mu-follower. What's the difference?
  165. Need advice on two preamp kits.
  166. My First Tube Amplifier
  167. Output (beam) pentodes / tetrodes suitable for screen grid drive
  168. Patent applications of interest
  169. Rca
  170. Guitar Amps
  171. Melos GK-1 Tube Pre-amp Schematic needed ...
  172. 6L6s and 6AR6s - what can I do with them?
  173. Line stage preamp, based on SY's "Heretical Unity gain line stage"
  174. 1600v HT supply for scope.
  175. Mc 275 CE schema
  176. Help! is this work?
  177. Some questons on a DIY system.
  178. pinout on 6GT5A tube
  179. 50Hz hum after increasing grid stopper
  180. A Heretical Unity Gain Line Stage part II
  181. 832A Push Pull 5W
  182. PSpice/LTSpice model for 12AY7/6072 wanted
  183. Is this circuit I drew ok?
  184. Suggest a preamp for cd/tuner
  185. EL84 to 6l6
  186. Tube-cad, is it worth the $40?
  187. Grounded Grid Preamp Project And Possible Group PCB Buy
  188. Can anyone sujest a good operating point for the PL84
  189. Preamp hiss noise
  190. Audio Note Trans 205 specs?
  191. Help translating russian tube datasheet
  192. Very high output level!
  193. Help wanted with valve data
  194. Boiling sound...
  195. Negative Feedback Ground
  196. low power SE with 813
  197. KT instead EL
  198. a single double triode and two chanel?
  199. 76 driving 211?
  200. My Experience with "Music Angel" EL34 PP
  201. 12JT6 in triode mode curves needed
  202. Where did these EL84 numbers come from?
  203. int. low signal
  204. FFT analysis-Truth or Consequence
  205. 6sn7gtb Filament Voltage
  206. Help with Tube Buffer for passive pre
  207. Is there a 12CM7?
  208. 12ax7
  209. tube driving the same tube - whats the collective word?
  210. 6c33c PSE
  211. 75% of rated max. current too high?
  212. ST shaped tube
  213. Tube Phono Pre of RJM
  214. how to determine P1 from P2 of a Push-pull transformer?
  215. fisher x100a
  216. Please review EL84M PP design before I order parts.
  217. Auction Gem Motorola? Go Figure!
  218. Darling amp plate voltage
  219. Sound quality of 6C4C is same with 2A3?
  220. 6,3VAC to 6,3VDC
  221. EL84 push pull idea
  222. Marantz preamp clone for newbie?
  223. Can I use Philips TB2.5 /400 in a SE ampl.
  224. Microwave + Computer = Tube? [help!]
  225. Oil Capacitor DC vs. AC Voltage Rating
  226. Plate Choke Miller Capacitance
  227. Anyone interested in building an EAR 834P?
  228. tube pre-amp
  229. Choke For Supply B+ Diy
  230. Audio Note DAC4 SRPP output stage problems!
  231. Regulated Dc Question
  232. what about tubes?
  233. Please help choose amp layout.
  234. SE 813 OPT..Am I On the right Track?
  235. say it's a hum problem
  236. Affordable KT88
  237. With transformer or OTL ?
  238. 45 SE tube amp OPT
  239. 2 Bogen 7027 tube amp vintage amplifier mono block
  240. Newnewbie Ouput Tranny question
  241. Webcor Amplifier Speaker
  242. could 24A been power tube
  243. How's this for a first amp?
  244. U.K. transformer supplier
  245. stereo el34 + kt66?
  246. Very tempting Good invesment or not????????
  247. A Heretical Unity gain line stage
  248. NFB net gain or loss
  249. Different brands:Is there any difference?
  250. McIntosh 225 Schematic

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