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  1. 12 volt preamp
  2. JE LAB's 2001 2A3 & Preamp???
  3. 12AX7WA
  4. found DIY amp - now what?
  5. Magic Eye spectrum analyzer
  6. Tube Companies
  7. B+ from GZ34 Heater CT ?
  8. Unknown mA on Gardners mains transformer
  9. PSU Question
  10. how to mount rca jacks and volume control in wood enclosure?
  11. Freaky Whistle in Guitar Amp
  12. Giaime's last nightmare - aka RIAA faceoff
  13. 5687 dc 5687 tube amp need help
  14. Input cap needed
  15. 6BQ5\EL84 line amp
  16. Capacitor Values Why so high? & What can I do?
  17. Bias pot question
  18. What I have: 4 Tubes. What I need...
  19. let me fix this bias
  20. A small no-fuss pentode/pentode SE amp
  21. Bleeder Resistor Placement
  22. Modifying Heathkit AA 151
  23. Interstage transformer for PI.
  24. Motorrun caps ... GND side?
  25. mono center channel out to stereo
  26. Audio Research REF 2 MkII
  27. 717a plate volts
  28. valve preamp criticisms?
  29. LOT of tubes. what can I do?
  30. substitution for 7355
  31. KT88 heaters
  32. Software for drawing tube schematics?
  33. Guitar Amp HUUUM with an MP3! Reverb Problem
  34. New books posted
  35. Compound bias
  36. Tube Oscillation or Microphonic Question
  37. WTB:OT for el 34 35 watt tube amplifier
  38. Questions on 6H30 simple PF?
  39. "Super Davohm" 1w .1% wirewound
  40. Heathkit AA-100
  41. 6159 for SE Power amp
  42. Do SMPS have a home at high end audio?
  43. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  44. cathode capacitance on anode follower
  45. looking for a building shematic for ECLL800
  46. Iron learning.
  47. Tube Amp - Crackling Sound on Left Channel
  48. Pspice preamp simulation
  49. Supply voltage for 12v6 12B4 heaters
  50. Studio Tube Preamp
  51. New project and my first circuit...
  52. Champ clone fried my soundcard
  53. Choke coupled phase invertor
  54. long cable line drive
  55. What To Do?
  56. Simple Method To Measure Source Resistance?
  57. is this true????
  58. query on the PSU of a preamp
  59. Meshplate Help needed
  60. 6072 tube preamplifier.
  61. hybrid rectifiers and PIV rating
  62. transformerless amp help plz ...
  63. Help me build a tube MIC preamp plz
  64. chinese 845 amp blowing fuses
  65. Question about PIV rating of diodes...
  66. Triode strapped heptode?
  67. The Fisher 500C/800C Challenge (long..dialup warning)
  68. 5 wire output transformer
  69. Orcad & tube library
  70. Wall Wart Tube Power
  71. How can I lower B+ of power supply?
  72. How do you put a CCS under a diff. pair of DHTs???
  73. Just need to make sure.
  74. restoring a marantz 7c
  75. Who sells a tube bass guitar amp kit??
  76. What is Simplest and Best 6L6 PP circuit? (PK)
  77. Good DIY Transformer Article (in Thai)
  78. Tube Swapping Question
  79. Toroid choke question
  80. Pentode CCS for parafeed SEP??
  81. subminiature tube suggestion
  82. MQ431 or Triode's DynaClone
  83. Conrad Johnson MV 45 schematic help
  84. signal wiring
  85. NEW B Need Help on Output Tx Problem
  86. center tap of heater winding
  87. Dynaco Mk IV question
  88. Does this tube amp has enough cap
  89. Acrosound TO-330 output transformers
  90. PP transformer for SE use
  91. Holiday Time!
  92. another beginers first amp thread!
  93. Western Electric 374A
  94. Musen to Jikken 03/1997
  95. Please help me make a schematic
  96. Tips for Hakko 936-12
  97. AC or DC for 300b Heaters
  98. Two irons for PSU
  99. Which DHT for Line stage?
  100. Pye Mozart 10 amplifier
  101. I need a simple schematic with 6J1P tubes
  102. First tube project. Need advice.
  103. Sound Valves M-40 assistance
  104. Has anyone been keeping up on the 'New Sensor' Controversy?
  105. quad esl output transformer.
  106. penta labs?
  107. New Build (Guitar Amp)
  108. transformer links
  109. EL84 auto split
  110. TOPWARD MODEL 605 operation manual & Schematic
  111. PREdator, Diff/CF linestage.
  112. Triode Electronics ??
  113. Full Bridge Amp?
  114. Tube literature on pentodes + transformers
  115. so, who made General Motor's "AUTRONIC EYE" tubes?
  116. 6DJ8 Linestage
  117. Annyone seen this problem?
  118. psu to heater on 4 el34 tubes???
  119. 6C33C-B, Reliability--A theory........
  120. Sun Audio preamps
  121. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  122. Carver Phono
  123. Help With 3 Channel Magnavox
  124. simulation software
  125. trickle charge psu?
  126. tube filter
  127. Holiday S-5 K-12G
  128. Couple of (newbie) tube questions...
  129. valve buffer gainclone
  130. Series wiring for heaters
  131. DIY tube cd player ?
  132. Tubes in mp3 players?
  133. Output Impedance?
  134. Hum Pot Question
  135. Which 6AQ5
  136. White flakes in rectifier tube??
  137. Bogen V20 PA Amp Schematic or ?
  138. 12a?7 in Eico HF-12
  139. Home Made Tubes?? has anyone made one, is it possible??
  140. replace 6N1P with 7308
  141. Plate choke on a line stage?
  142. Looking for datasheet
  143. 811A SET Monoblock physical layout suggestions
  144. Automated bias
  145. OTL or parafeed?
  146. tubes: Jcm 900 Slx 50watt
  147. Reversing mains toroids for HT
  148. 5881/6L6WGC and 12AT7WA replacement
  149. Direction for Mounting Transformers
  150. Ecf80
  151. feedback phasing
  152. Cryotubes? Cryogenically Frozen valves
  153. European Triode Festival 2005
  154. PSU capacitors
  155. Question on shared rectifier / signal tube filament windings
  156. Heathkit rebuild or...?
  157. Fisher 500B OPT/Feedback Questions
  158. Transformer selection question
  159. Grounded Grid Help
  160. EF86 penthode
  161. Any audio use for ER21A?
  162. Upgrading a sonic frontiers SFS-80
  163. Hum problem
  164. low frequency oscillation in 12B4 linestage
  165. Balanced volume control question
  166. Need Help for Power Supply for gg Preamp
  167. OTL 6c33c Ciufolli v8.2 low voltage rails
  168. Any way to extend OPT low-frequency response?
  169. RCA Phono Stage Redux
  170. About tube codes
  171. More Joules? Tube or Solid State PSU?
  172. EL34 schematic confusion
  173. 2-stage DHT: high-mu vs. interstage stepup
  174. Understanding this power supply
  175. 6V6G recommended schematic
  176. parallel CRC Filtering for B+
  177. 6v6. 6lg Gain Max Voltage
  178. More buffer questions
  179. Benchtop PS
  180. Chassis labels
  181. LM317 Regulator Problem
  182. Can I afford my SE amp ??
  183. 12B4 versus 6S4 for linestage
  184. Function Generator Probe?
  185. Otl Set?
  186. Tektronix TDS2000 series is a noisy scope
  187. vanderveen's 30W PP amp..
  188. Roberts/Akai M series amp problems
  189. What speaker to use with my tube clone
  190. What’s the best tube amplifier you can build?
  191. Cathode Follower Buffer Input Impedance
  192. EL84 as Preamp and as Crossover
  193. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  194. EL 84 Single Ended Integrated
  195. "2 Stage" PP 7591 Amp
  196. Jolida 1301a with Mission M71 speakers?
  197. EL34 SE in 430V?
  198. EL 84 PPP/PP Class A Triode schematic
  199. Almarro A318A
  200. beckman berkley model 7360
  201. spice model for UL output transformer?
  202. Need help with my new amp
  203. Motor caps
  204. E88CC Mullard fake
  205. Anyone try sharp cutoff pentodes in a p-p output stage?
  206. 845 A2 Monoblock Project
  207. newb needs help on simple el84 amp PS
  208. Newbie's power supply woes
  209. Question about M7 Preamp
  210. Which amp to DIY as a first project?
  211. help for psu
  212. tube amp
  213. Will a 6BH6 work in an Aikido?
  214. Tubes and maximum ratings
  215. FireFly Amp Question
  216. help needed 1st tube diy
  217. Help for newbie building Toccata preamp
  218. Diy Orange guitar amp
  219. Hybrid amp -> tube for VAS stage
  220. I recently inherited a Heathkit HO-10 monitor o-scope...
  221. Laney PA amp help!
  222. Aikido tube choice
  223. Biasing pre-amp problem
  224. Help with identifying tube
  225. Off Topic Holiday Cheer
  226. Prototype preamp example
  227. PV10AL Transformer burned, help!
  228. EL34 Pentode in Push-Pull!
  229. Mcintosh MX110 repair
  230. Mains Transformer Question
  231. Loaded Question
  232. A BIG SCRATCH in my speakers? Help me please.
  233. New Production Tung Sol 6550 Tubes - Opinions
  234. Looking to build a tube integrated
  235. Which high power CCS for output stage?
  236. Using a mosfet to drop B+?
  237. drawings vs. schematics
  238. New TEK Scopes
  239. Transfos Anyone?
  240. Ripple guidelines for power supplies
  241. Mains transformer orientation
  242. New Nightmare (Guitar Amp)
  243. AMD tube integrated tube amp
  244. Using Choke in LCRC filter in power supply
  245. Need good current sink JFET or MOSFET?
  246. Setting Up a Circuit for Testing
  247. 6H6 question
  248. Kennedy Tube Audio Website Hijacked
  249. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  250. transformer for Philips AG9015

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