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  1. Gyrators to replace PSU chokes?
  2. Output trannies for 6as7
  3. 2 Toroids = 1 Isolation Transformer?
  4. Finding Transformer Building Supplies
  5. Sagging Heaters
  6. Kofi Annan in: "Kofi's Baby Huey"
  7. Point to point wiring help
  8. help !! PTT2s Line stage
  9. Rickard Berglund, Sweden
  10. "The Sussex Homebrew Valve Tester"
  11. clipping
  12. Wanted: a couple of UNF bolts
  13. H-Bridge Amp Design
  14. need help with yaqin mc10l
  15. Watt the?
  16. DIY tube preamp with 5687
  17. Help with tube stereo build
  18. Tube recommendation for speakers
  19. Bogen mx60a Schematic
  20. Eliminating volume pot?
  21. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  22. tube power supply voltage
  23. Driver Bypass Cap - Value?
  24. Tube bases and plate caps rant
  25. tube dual regulated psu needs amp
  26. Help me choose output transformers
  27. 12GT5-guitar amp.
  28. Verdier dual regulated tube psu
  29. Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
  30. Mullard EL84 ID
  31. schematic request for transformer with 4k primary and UL taps
  32. Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
  33. Anyone going to the Dayton Hamfest?
  34. More class D madness
  35. the SuperHybrid
  36. Tecon Model "55" final mods(?)
  37. Hammond P-T125E OPT
  38. Highbred Amp "TUMOS" Sounds good?
  39. 300B SET which chassis design
  40. Help with creating a simple tube HV regulated supply
  41. Tube Sockets for oddball miniatures
  42. McGohan M506 PA Guitar conversion mods.
  43. Bogen chb35a
  44. My last el84 PP tube amplifier
  45. Ultrapath - Advantages?
  46. Phono preamp with c/em2
  47. 12AY7 plate current
  48. OPT identification
  49. Resistor values at supply to anodes
  50. Typical output impedance for tube amps
  51. Problems with EM87 stereo level indicator for computer line out
  52. VR tube recommendation
  53. Mills MRA-5 resistors in tube circuits
  54. B&K Dyna-Quik 500 shows good tubes as Shorted
  55. Output transformers
  56. dbx 386 upgrade
  57. Sub 6n6p for 6n1p?
  58. SET Amp History in Japan
  59. Grid Bias or Cathode Bias
  60. Oscillating CJ PV-5
  61. FireFly Single Ended Tetrode
  62. Aikido front end for a SE 6C33S
  63. Ground Plane vs Star earth
  64. Circuit board with long post??
  65. ecc804 as Phase Splitter
  66. What can you do with a 3a5?
  67. Auto Wave soldering sockets
  68. Using diode for biasing
  69. No bass in 300b amp
  70. Tube socket and pin cleaning
  71. Help With Left Channel Hum
  72. Volume pot has rustling sound
  73. How best to distribute heater windings
  74. 30MB6 data
  75. Kofi Annan in: "Pushed and Pulled Back!"
  76. How dangerous is it to build an SET?
  77. 6as7 SE OTL
  78. Melody Roll
  79. 8417 Output Transformer
  80. Do you still need matched tubes if running a CCS ?
  81. Is a LM335 a direct replacement for a LM317T?
  82. Bias worry
  83. About the tube 6463
  84. awesome RCA MI 12158 tube amp project
  85. Crazy idea: Output tranny with constant magnetic gap?
  86. Most linear triode-strapped pentode
  87. Aikidio Phono Amp Questions
  88. Sample and Hold
  89. Big push-pull power for dummies
  90. Foxtrot Guitar Amp - Output transformer
  91. Taking my KT88 SE E-linear amp to the next level (long)
  92. Aikido Janus Shunt PSU
  93. 12b4a phase splitter! The best?
  94. Sansui 500EA vs. 500A
  95. Cascoded Ring of Two for Plate Load
  96. 6SL7 distortion
  97. My new PL36 Push-Pull amp
  98. adding line out to guitar tube preamp
  99. Thyratrons
  100. Tube ampl. for repair
  101. Date codes
  102. China Sountrack KT88 need shematic
  103. Anyone know anything about the Luxman A-2003 tube xover?
  104. Dynamic negative feedback?
  105. Need help with Ampeg J-20 crackling buzzing hissing noise issue/blocking distortion?
  106. New bie: some questions, want to start DIY pre amp
  107. Power Transformer issue
  108. Guess That Tube
  109. Poor soundstage with SET 300B
  110. Dedicated ESL amp -- please comment
  111. Buzzing AC relay coil
  112. Stereo amp parallel wired to mono - possible?
  113. Need biasing advice, cathode biased amp.
  114. Before I go ahead and build this...
  115. Beginner Tube Stereo
  116. 6AU6 and 6J5 for Guitar amp or pedal?
  117. Morgan Jones and the ECC88/6922/6DJ8
  118. Help with matching speaker impedance to old tube amp
  119. srpp 2a3 power supply
  120. 12AX7 Tube Question
  121. New problem with Music Angel KT88
  122. Need help changing 12V heater to 6V
  123. Phono cathode follower challenge!!
  124. 6au6 for stereo?
  125. determining input/output impedance
  126. "Singing" output transformers
  127. Sustitute 5842 for EC86
  128. Vege-toobz ;)
  129. precision electronics inc. tube guitar amplifier
  130. Bad channel in RCA Victor Console
  131. Did tone bypass on PAS what about caps
  132. Pe06/40n
  133. Anyone own an HH Scott LK-72 Integrated amp?
  134. HELP!! Howling K12G!!
  135. McIntosh MC60 Bias question
  136. Connecting a MF tube buffer directly to AKM DAC
  137. How to evaluate RF tubes for power and fidelity?
  138. Amity Amp Nutshell Audio
  139. 8086 Tubes?
  140. Lil' Devil P-P Amp
  141. 6SN7 vs. 6SL7 in Darling amp
  142. BBC AM8/6 mono tube amp schematic
  143. ST70 works with PAS but not another preamp
  144. Freds in 6X5 psu?
  145. Hi-End 50W Push-Amplifier inspired to AudioResearch
  146. Audioromy fu-29 - push pull!
  147. Help - MS-6V6 Yaqin schematic
  148. High Voltage Direct Drive amplifier for Plasma loudspeaker
  149. A Direct-Coupled Amplifier with Cathode Follower 6V6
  150. Separo- Full Pictorial Disclosure- opinions please
  151. Hammond Integrated Amp Kits 1950s
  152. LW6-180 schematic
  153. What to look for in a tube preamp?
  154. Russian-English Translation of 4P1L datasheet
  155. Can anybody identify this
  156. New York Audio Labs (NYAL) OTL1
  157. 5F6A via Mechanical Design
  158. New to tubes, need your advice.
  159. Brook 12a clone
  160. What type of audio transformers to use for tubes / valves
  161. need advice about building tube xover as a piece of art
  162. My first amp project, 6BQ5 (EL84) Single-End
  163. MA 6P1 6AQ5 Push-Pull Valve Tube Integrated Amplifier
  164. Stupid AB bias question
  165. Jamoke Direct to LPT/CCS PP EL34
  166. 4 x EL84 (6BQ5) in Push-Pull - Power Supply
  167. RFC: 300B driven by anode follower (6J5/6SN7)
  168. AVO VCM163 oddity
  169. Shuguang SG-50 ( RCA UX-250 replica) comments ???
  170. Schematic question (Trainwreck)
  171. Novel mode of lithium battery bias
  172. power supply problem in my dream amp...
  173. Understanding how to wire up an Output Transformer
  174. Tube sound without the tube! (almost)
  175. Replace Bypass Cap?
  176. Sales On Sound Vintage 40s Tube Amp Info
  177. Why am I blowing fuses when connecting to next component?
  178. New owner to an old Heathkit AA-121
  179. New amp just finished 6080 pp opt
  180. Aikido as DAC I/V?
  181. Have two 572B-162L USA mfg tubes for trade
  182. Potentiometer question
  183. DHT circuit development for noob:)
  184. modifying a schematic
  185. TV-4a/u Weston USM Tube Tester: got a manual or schematic?
  186. Any idea what the primary impedance of the X101-B OPT is?
  187. Transformer Ratings
  188. noisy Gain knob
  189. overcooling question
  190. Ecl82 PP amp rebuild - suggestions?
  191. GU-50 PP amp project - Any favs?
  192. External DC power supply?
  193. shielded wire
  194. Noise & attenuation
  195. Thinking of building the SV300B Push-Pull
  196. Transformers for Push-Pull sweep tubes
  197. 12BG3's
  198. Valve audio circuit design questions.
  199. jcm 800 preamp?
  200. srpp & distortion
  201. Common cathode circuit values
  202. Resilient Mounts - Materials Science help please
  203. Raytheon 6G-B6 information
  204. Output transformers
  205. Filament winding wire diameter
  206. EL34 for ST70
  207. Building a Tube PreAmp for Teddy
  208. series capacitor values..
  209. Music Angel KT88 correct circuit
  210. G1=G2/mu Scaled Drive Strawman Design
  211. Output transformer for 845 SE triode amp
  212. "10 year burn in" T Shirt arrives!!!
  213. Thinking out loud -- VT-33 headphone amp?
  214. Elektor USB magic eye
  215. Maganavox Tubes Made in USA?
  216. Magic Eye VU Meter
  217. More EBAY Madness !!
  218. Major modifications of a Bogen AP-35
  219. Help with circuitmaker Pentode model
  220. Kt-120 ?
  221. Help with 6F5/6L6 rebuild...
  222. What Speaker for Webcor Tube Amp?
  223. Possible use for Pentagrid tubes??
  224. Rogers Cadet III integrated
  225. Quad II - Can 6P3S-E/GU50 be used as KT66 direct replacement?
  226. Using Grid2 screen signal -
  227. 6n6p tube as output tube for small guitar amp
  228. YAAGLI - Yet Another Aikido Ground Loop Issue
  229. Tube rectifier question.
  230. Dac with tube preamp?
  231. 5712 tube data needed
  232. 180 pF capacitor and other questions
  233. Simple question: Stereo to monos. How.
  234. Plate dissipation specs for 21KQ6
  235. Yaqin pre-out for subwoofer?
  236. Grid Chokes and choke load
  237. First tube amp project: GO!
  238. Hybrid Amp
  239. Circuit weirdness?
  240. How suitable is this tranformer for a Tube Amp Project?
  241. Best way to solder gold-plated components?
  242. Phono EQ hiss/white noise!!!
  243. help needed with grounded grid CCS upgrade
  244. Resistor wattage?
  245. SCORE! Kepco Tube Power supplies!
  246. 6SN7-2A3 SE Amp - James Transformers
  247. Capacitor explosion.
  248. JJ ECC81/12AT7 Longevity
  249. 6V6GTA Tubes, H/K A300 Transformers, Now What?
  250. DIY valve radio

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