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  1. Parafeed with resistive load
  2. EL34 SE triode mode A class sch wanted
  3. Dumont (where theres smoke theres sound)
  4. HYBRID- Schematic
  5. I have a pair of JBL control 5 speakers, which valve amp design you recommend?
  6. sovtek 300B
  7. 12au6 preamp
  8. Engineering Drawings PCB Mount Tube Sockets
  9. Help with a choke for first-time DIY...
  10. Power SRPP
  11. Anode Loading Vs. Cathode Loading ?
  12. Purist 2 Line Amp
  13. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  14. radio receiver
  15. Help Vintage Guitar Hummer
  16. Pioneer SM83 and 500k pot
  17. How many ways to connect a pentode...
  18. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  19. Any pitfalls to tapping voltage doubler?
  20. 5k to 100 or so line transformers
  21. Ongaku 211 and Supravox 215
  22. Help with 6B4G PP amp.
  23. Help me build my Choke I/P preamp PSU
  24. Pinging "DoomPixie"
  25. 6L6 mono amp questions
  26. Help on 300B power trans...
  27. Spud Farmin' Pt. Deux
  28. No Zen
  29. Reuse or rewind choke
  30. Bell Sound Mono Integrated Amplifier
  31. Help with Melos SHA repair
  32. diy guitar tube amp help.
  33. Phase splitter transformers
  34. 6v6 schems
  35. Cathode feedback
  36. Is this a good choice for El34 PP
  37. 6DK6 amp schematics?
  38. so who here builds amps
  39. 3:1 Line Input X-former ?
  40. * 35 watt * 300B SE = super 300B + Class A2
  41. Quirk in Mullard 5-20 circuit
  42. LL1673 as anode load?
  43. preamp/power amp matching
  44. 0A3 and pentode questions (quickie)
  45. where to find transformer to use
  46. C core output design
  47. Unusual Motorola Console
  48. Improving the Aikido line stage...
  49. Poll..anyone interested in an Aikido linestage PCB group buy?
  50. New 6s45p compare to NOS?
  51. Elektra Print L-3500
  52. 300b tube cage
  53. The 'Tater Patch
  54. 2A3 Sovtek characteristics
  55. 300b filament q, yes another one.
  56. Amp repair help needed.
  57. 833a SE Peak A.F. Grid Voltage
  58. DHP driver for 845
  59. Fisher 55-a
  60. Ultralinear Miller capacitance
  61. Simplest OTL?
  62. presence control
  63. Black Gate N cathode formation voltage
  64. Any other reported fragility for 6H30pi?
  65. Help! circuit diagram
  66. Another Gm70 amp !!
  67. 833a Amp 75W SE
  68. Black Gate N-series question
  69. 300B+
  70. Koren's spice models
  71. 50 Power triode
  72. Vertical deflection tubes for audio output?
  73. warmth in different tube types
  74. OT data
  75. Sansui 1000A OPT's
  76. CF biasing and load ???s
  77. improving the Mcintosh C22
  78. An amp that melts 6L6s?
  79. 8ohm speaker on 15 or 3.5 ohm tranny
  80. Choosing a brand as a standard
  81. The power of transformation
  82. wanted- 845 pwr amp p.p.
  83. Heathkit S-33 Information needed.
  84. Leak Stereo 20 - solid state rectifier?
  85. My rebuild 6sn7gt tubes line pre-amp.
  86. CircuitMaker Vacuum Tube model
  87. Mf X-pre
  88. E182CC, E88CC SRPP at low voltage
  89. Debugging my Aikido
  90. SRPP linestage help
  91. Transformer question
  92. Tube Spice Model Problem
  93. Just found a zenith 7g01z in the basement
  94. your next level story - Philosophy of EE 101
  95. JLTI Tube Preamp
  96. squeal in amplifier
  97. ALTEC Line & Bridging Transformer Data??
  98. Tube noob needs some help on PSU
  99. Preamp PSU Design Help
  100. GZ37 Substitution?
  101. help disigning 12AY7 based mic pre
  102. I m confuse ! expert help
  103. Removing a pot.
  104. diyparadiso kits?
  105. Help with linestage power supply
  106. TX103 - RJM 6DJ8 - TX102 preamp
  107. Replace the field coil spk with Electromagnetic dynamic spk
  108. Gu50 output problems
  109. SRPP: adifferent perspective
  110. Fixed or self bias?
  111. 211 amp PSU question
  112. Help! transformer overheating!
  113. more ebay stuff
  114. 6KG6, output stage & PSpice
  115. 6C33C-B Failure Mode?
  116. manley 300b preamp schematic required
  117. 115 V transformer on 230 V ???
  118. Hoffman Amps Turret Lugs?
  119. 300B Reliablity
  120. Metal work in Toronto
  121. What happens when you starve a heater?
  122. se 6c33c or se el34 schematic
  123. AVO MkIV User Guide
  124. Altec A150C and 531B psu
  125. What's been broken?
  126. tubes here...
  127. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  128. The Beast...
  129. Looking for Mikael's KT88 Schematic
  130. 1.2k vs 2.5k TC on a 6550 amp?
  131. Ultimate Tube head phone amp.
  132. Selecting Output Transformers for My WOT Line Preamp
  133. Tube microphone
  134. OP tube convertible PP amps?
  135. The "Valvolozzo" - SE amp with torroids
  136. Phase Splitters
  137. A new setup, advice wanted
  138. 6e2 Magic eye datasheet
  139. Another linestage......
  140. VT52: are the triode and pentode alike?
  141. Long term planning
  142. vintage restoration
  143. Some doubt about my first Tube amp (Heater).
  144. Power supply for Single Ended Amplifier
  145. Another CD player DAC tube modification
  146. philips el6400 tubeamp
  147. NTE Metal Film Resistors?
  148. How much power do I really need?
  149. hey guitar playas, try this one!
  150. 6H30 phono with passive RIAA
  151. I need help troubleshooting a EL84 push pull amp.
  152. Tube Data needed please
  153. Filament Transformer
  154. strange tube
  155. 12AX7 and 12AT7 numerical data
  156. DC/DC converter to power tube amp?
  157. Basic Cathode Follower buffer
  158. Marshall EL84 20/20 schematic needed
  159. Help me!!! I need schematic of Pow-Amp using 6V6
  160. gi30, se pentode?
  161. Any experience with Chinese 6N8P
  162. Source for common mode chokes
  163. Low Power FM stereo transmitter?
  164. Rh807
  165. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  166. Question about sub out on amp
  167. opt question
  168. Tube socket wanted. (help where)
  169. voltage regulator using ECL84 + OB2
  170. Help! 6sn7GT
  171. tubes n needles
  172. PSpice/LTSpice model for 6AU6/EF94?
  173. 5AR4/GZ34 GT Britain
  174. CCS vs mu-follower. What's the difference?
  175. Need advice on two preamp kits.
  176. My First Tube Amplifier
  177. Output (beam) pentodes / tetrodes suitable for screen grid drive
  178. Patent applications of interest
  179. Rca
  180. Guitar Amps
  181. Melos GK-1 Tube Pre-amp Schematic needed ...
  182. 6L6s and 6AR6s - what can I do with them?
  183. Line stage preamp, based on SY's "Heretical Unity gain line stage"
  184. 1600v HT supply for scope.
  185. Mc 275 CE schema
  186. Help! is this work?
  187. Some questons on a DIY system.
  188. pinout on 6GT5A tube
  189. 50Hz hum after increasing grid stopper
  190. A Heretical Unity Gain Line Stage part II
  191. 832A Push Pull 5W
  192. PSpice/LTSpice model for 12AY7/6072 wanted
  193. Is this circuit I drew ok?
  194. Suggest a preamp for cd/tuner
  195. EL84 to 6l6
  196. Tube-cad, is it worth the $40?
  197. Grounded Grid Preamp Project And Possible Group PCB Buy
  198. Can anyone sujest a good operating point for the PL84
  199. Preamp hiss noise
  200. Audio Note Trans 205 specs?
  201. Help translating russian tube datasheet
  202. Very high output level!
  203. Help wanted with valve data
  204. Boiling sound...
  205. Negative Feedback Ground
  206. low power SE with 813
  207. KT instead EL
  208. a single double triode and two chanel?
  209. 76 driving 211?
  210. My Experience with "Music Angel" EL34 PP
  211. 12JT6 in triode mode curves needed
  212. Where did these EL84 numbers come from?
  213. int. low signal
  214. FFT analysis-Truth or Consequence
  215. 6sn7gtb Filament Voltage
  216. Help with Tube Buffer for passive pre
  217. Is there a 12CM7?
  218. 12ax7
  219. tube driving the same tube - whats the collective word?
  220. 6c33c PSE
  221. 75% of rated max. current too high?
  222. ST shaped tube
  223. Tube Phono Pre of RJM
  224. how to determine P1 from P2 of a Push-pull transformer?
  225. fisher x100a
  226. Please review EL84M PP design before I order parts.
  227. Auction Gem Motorola? Go Figure!
  228. Darling amp plate voltage
  229. Sound quality of 6C4C is same with 2A3?
  230. 6,3VAC to 6,3VDC
  231. EL84 push pull idea
  232. Marantz preamp clone for newbie?
  233. Can I use Philips TB2.5 /400 in a SE ampl.
  234. Microwave + Computer = Tube? [help!]
  235. Oil Capacitor DC vs. AC Voltage Rating
  236. Plate Choke Miller Capacitance
  237. Anyone interested in building an EAR 834P?
  238. tube pre-amp
  239. Choke For Supply B+ Diy
  240. Audio Note DAC4 SRPP output stage problems!
  241. Regulated Dc Question
  242. what about tubes?
  243. Please help choose amp layout.
  244. SE 813 OPT..Am I On the right Track?
  245. say it's a hum problem
  246. Affordable KT88
  247. With transformer or OTL ?
  248. 45 SE tube amp OPT
  249. 2 Bogen 7027 tube amp vintage amplifier mono block
  250. Newnewbie Ouput Tranny question

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