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  1. so who owns a dac5 or m8 phono
  2. OPT at frequency extremes
  3. Parafeed with resistive load
  4. EL34 SE triode mode A class sch wanted
  5. Dumont (where theres smoke theres sound)
  6. HYBRID- Schematic
  7. I have a pair of JBL control 5 speakers, which valve amp design you recommend?
  8. sovtek 300B
  9. 12au6 preamp
  10. Engineering Drawings PCB Mount Tube Sockets
  11. Help with a choke for first-time DIY...
  12. Power SRPP
  13. Anode Loading Vs. Cathode Loading ?
  14. Purist 2 Line Amp
  15. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  16. radio receiver
  17. Help Vintage Guitar Hummer
  18. Pioneer SM83 and 500k pot
  19. How many ways to connect a pentode...
  20. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  21. Any pitfalls to tapping voltage doubler?
  22. 5k to 100 or so line transformers
  23. Ongaku 211 and Supravox 215
  24. Help with 6B4G PP amp.
  25. Help me build my Choke I/P preamp PSU
  26. Pinging "DoomPixie"
  27. 6L6 mono amp questions
  28. Help on 300B power trans...
  29. Spud Farmin' Pt. Deux
  30. No Zen
  31. Reuse or rewind choke
  32. Bell Sound Mono Integrated Amplifier
  33. Help with Melos SHA repair
  34. diy guitar tube amp help.
  35. Phase splitter transformers
  36. 6v6 schems
  37. Cathode feedback
  38. Is this a good choice for El34 PP
  39. 6DK6 amp schematics?
  40. so who here builds amps
  41. 3:1 Line Input X-former ?
  42. * 35 watt * 300B SE = super 300B + Class A2
  43. Quirk in Mullard 5-20 circuit
  44. LL1673 as anode load?
  45. preamp/power amp matching
  46. 0A3 and pentode questions (quickie)
  47. where to find transformer to use
  48. C core output design
  49. Unusual Motorola Console
  50. Improving the Aikido line stage...
  51. Poll..anyone interested in an Aikido linestage PCB group buy?
  52. New 6s45p compare to NOS?
  53. Elektra Print L-3500
  54. 300b tube cage
  55. The 'Tater Patch
  56. 2A3 Sovtek characteristics
  57. 300b filament q, yes another one.
  58. Amp repair help needed.
  59. 833a SE Peak A.F. Grid Voltage
  60. DHP driver for 845
  61. Fisher 55-a
  62. Ultralinear Miller capacitance
  63. Simplest OTL?
  64. presence control
  65. Black Gate N cathode formation voltage
  66. Any other reported fragility for 6H30pi?
  67. Help! circuit diagram
  68. Another Gm70 amp !!
  69. 833a Amp 75W SE
  70. Black Gate N-series question
  71. 300B+
  72. Koren's spice models
  73. 50 Power triode
  74. Vertical deflection tubes for audio output?
  75. warmth in different tube types
  76. OT data
  77. Sansui 1000A OPT's
  78. CF biasing and load ???s
  79. improving the Mcintosh C22
  80. An amp that melts 6L6s?
  81. 8ohm speaker on 15 or 3.5 ohm tranny
  82. Choosing a brand as a standard
  83. The power of transformation
  84. wanted- 845 pwr amp p.p.
  85. Heathkit S-33 Information needed.
  86. Leak Stereo 20 - solid state rectifier?
  87. My rebuild 6sn7gt tubes line pre-amp.
  88. CircuitMaker Vacuum Tube model
  89. Mf X-pre
  90. E182CC, E88CC SRPP at low voltage
  91. Debugging my Aikido
  92. SRPP linestage help
  93. Transformer question
  94. Tube Spice Model Problem
  95. Just found a zenith 7g01z in the basement
  96. your next level story - Philosophy of EE 101
  97. JLTI Tube Preamp
  98. squeal in amplifier
  99. ALTEC Line & Bridging Transformer Data??
  100. Tube noob needs some help on PSU
  101. Preamp PSU Design Help
  102. GZ37 Substitution?
  103. help disigning 12AY7 based mic pre
  104. I m confuse ! expert help
  105. Removing a pot.
  106. diyparadiso kits?
  107. Help with linestage power supply
  108. TX103 - RJM 6DJ8 - TX102 preamp
  109. Replace the field coil spk with Electromagnetic dynamic spk
  110. Gu50 output problems
  111. SRPP: adifferent perspective
  112. Fixed or self bias?
  113. 211 amp PSU question
  114. Help! transformer overheating!
  115. more ebay stuff
  116. 6KG6, output stage & PSpice
  117. 6C33C-B Failure Mode?
  118. manley 300b preamp schematic required
  119. 115 V transformer on 230 V ???
  120. Hoffman Amps Turret Lugs?
  121. 300B Reliablity
  122. Metal work in Toronto
  123. What happens when you starve a heater?
  124. se 6c33c or se el34 schematic
  125. AVO MkIV User Guide
  126. Altec A150C and 531B psu
  127. What's been broken?
  128. tubes here...
  129. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  130. The Beast...
  131. Looking for Mikael's KT88 Schematic
  132. 1.2k vs 2.5k TC on a 6550 amp?
  133. Ultimate Tube head phone amp.
  134. Selecting Output Transformers for My WOT Line Preamp
  135. Tube microphone
  136. OP tube convertible PP amps?
  137. The "Valvolozzo" - SE amp with torroids
  138. Phase Splitters
  139. A new setup, advice wanted
  140. 6e2 Magic eye datasheet
  141. Another linestage......
  142. VT52: are the triode and pentode alike?
  143. Long term planning
  144. vintage restoration
  145. Some doubt about my first Tube amp (Heater).
  146. Power supply for Single Ended Amplifier
  147. Another CD player DAC tube modification
  148. philips el6400 tubeamp
  149. NTE Metal Film Resistors?
  150. How much power do I really need?
  151. hey guitar playas, try this one!
  152. 6H30 phono with passive RIAA
  153. I need help troubleshooting a EL84 push pull amp.
  154. Tube Data needed please
  155. Filament Transformer
  156. strange tube
  157. 12AX7 and 12AT7 numerical data
  158. DC/DC converter to power tube amp?
  159. Basic Cathode Follower buffer
  160. Marshall EL84 20/20 schematic needed
  161. Help me!!! I need schematic of Pow-Amp using 6V6
  162. gi30, se pentode?
  163. Any experience with Chinese 6N8P
  164. Source for common mode chokes
  165. Low Power FM stereo transmitter?
  166. Rh807
  167. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  168. Question about sub out on amp
  169. opt question
  170. Tube socket wanted. (help where)
  171. voltage regulator using ECL84 + OB2
  172. Help! 6sn7GT
  173. tubes n needles
  174. PSpice/LTSpice model for 6AU6/EF94?
  175. 5AR4/GZ34 GT Britain
  176. CCS vs mu-follower. What's the difference?
  177. Need advice on two preamp kits.
  178. My First Tube Amplifier
  179. Output (beam) pentodes / tetrodes suitable for screen grid drive
  180. Patent applications of interest
  181. Rca
  182. Guitar Amps
  183. Melos GK-1 Tube Pre-amp Schematic needed ...
  184. 6L6s and 6AR6s - what can I do with them?
  185. Line stage preamp, based on SY's "Heretical Unity gain line stage"
  186. 1600v HT supply for scope.
  187. Mc 275 CE schema
  188. Help! is this work?
  189. Some questons on a DIY system.
  190. pinout on 6GT5A tube
  191. 50Hz hum after increasing grid stopper
  192. A Heretical Unity Gain Line Stage part II
  193. 832A Push Pull 5W
  194. PSpice/LTSpice model for 12AY7/6072 wanted
  195. Is this circuit I drew ok?
  196. Suggest a preamp for cd/tuner
  197. EL84 to 6l6
  198. Tube-cad, is it worth the $40?
  199. Grounded Grid Preamp Project And Possible Group PCB Buy
  200. Can anyone sujest a good operating point for the PL84
  201. Preamp hiss noise
  202. Audio Note Trans 205 specs?
  203. Help translating russian tube datasheet
  204. Very high output level!
  205. Help wanted with valve data
  206. Boiling sound...
  207. Negative Feedback Ground
  208. low power SE with 813
  209. KT instead EL
  210. a single double triode and two chanel?
  211. 76 driving 211?
  212. My Experience with "Music Angel" EL34 PP
  213. 12JT6 in triode mode curves needed
  214. Where did these EL84 numbers come from?
  215. int. low signal
  216. FFT analysis-Truth or Consequence
  217. 6sn7gtb Filament Voltage
  218. Help with Tube Buffer for passive pre
  219. Is there a 12CM7?
  220. 12ax7
  221. tube driving the same tube - whats the collective word?
  222. 6c33c PSE
  223. 75% of rated max. current too high?
  224. ST shaped tube
  225. Tube Phono Pre of RJM
  226. how to determine P1 from P2 of a Push-pull transformer?
  227. fisher x100a
  228. Please review EL84M PP design before I order parts.
  229. Auction Gem Motorola? Go Figure!
  230. Darling amp plate voltage
  231. Sound quality of 6C4C is same with 2A3?
  232. 6,3VAC to 6,3VDC
  233. EL84 push pull idea
  234. Marantz preamp clone for newbie?
  235. Can I use Philips TB2.5 /400 in a SE ampl.
  236. Microwave + Computer = Tube? [help!]
  237. Oil Capacitor DC vs. AC Voltage Rating
  238. Plate Choke Miller Capacitance
  239. Anyone interested in building an EAR 834P?
  240. tube pre-amp
  241. Choke For Supply B+ Diy
  242. Audio Note DAC4 SRPP output stage problems!
  243. Regulated Dc Question
  244. what about tubes?
  245. Please help choose amp layout.
  246. SE 813 OPT..Am I On the right Track?
  247. say it's a hum problem
  248. Affordable KT88
  249. With transformer or OTL ?
  250. 45 SE tube amp OPT

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