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  1. Wanted...design for D3a triode strapped driving 45
  2. Removing Tone Controls from VoM Preamp/Amp
  3. Philips 8580 useful anywhere?
  4. output transformer info
  5. 100Hz square preamp responce help
  6. 6P21s 6n21c tube, True Direct Heater?
  7. Convert Dogzilla for Hi-Fi output
  8. Bogen AP-35 Static and Pop from one channel
  9. EL34 PP triode mode hums
  10. Rectifiers
  11. Yaqin MC 10l problem
  12. Stripping Edcor's powder coating
  13. 5Y3 with slow warm up input and output tubes
  14. power transformer question
  15. DHT heaters . and their property"s
  16. Power Tube Cathode Resistor "distance"
  17. Does the same output power from tube amp and ss amp have difference?
  18. 32 Channel Microphone Preamp
  19. Field coil questions
  20. MC240 found in a shed.
  21. "Impossible" circuit which seems to amplify anyway.
  22. EL84 driving EL84 SEP
  23. Tube buffer for MosFet Citation 12
  24. Building a better power Triode
  25. Original KT88? or not
  26. Moscode 300 Upgrade
  27. Onwer's Manual for Realistic SAF-24D
  28. 2 stage Stereo/4 Stage Mono Triode Preamp with independent drive control & inverters
  29. 6J4 Experiment!
  30. Anyone build Broskie's T8 OTL?
  31. Just WHY are DHT tubes SO Expensive....?
  32. Two chassis grounding
  33. Tubes vs. Caps?
  34. Impedance and output transformer selection question
  35. Preamp tube SRPP 12AU7 VS preamp tube Aikido 12AU7 = all use rec 6X5GT
  36. peavey tube amplifiers
  37. Stark 9-66 tester repair
  38. 5e7 bandmaster build q's
  39. What kind of tube did I use back then?
  40. Wanted: Vacuum Tube Phono Preamp for PAS
  41. Lower gain in YS Audio linestage
  42. Converting 12FQ8 for 12AX7 , HELP !!!
  43. Transformer Inquiry
  44. Gibson BR-9 Tube Amp Issues
  45. Stromberg-Carlson AU-35 PA Amp for Guitar
  46. Pitfalls of paralleling different resistor brands?
  47. Question about rp and the AC load line
  48. KTA-HiFi ST-70 pcb or marantz 8b. HiFi build
  49. What is it about SET's?
  50. Help with Power cable on guitar amp
  51. The Russian Connection - (Maybe) A build thread. (KT88 SEP)
  52. A small help with russian low voltage tube
  53. Acoustic (not Audio) Alchemy Labs
  54. Mullard 404? ECL82 amp
  55. OP & tube power transormers
  56. EML 300B-XLS Schematic?
  57. Experiences with TAD EL34?
  58. C3g simulation model
  59. ok maybe im just a newb when it comes to amps but...
  60. Yet another compactron to play with...
  61. Weird heater arrangement 12ax7/6bm8
  62. I love SET can we fix what I hate?
  63. Tony's 6H32 pre-amp
  64. rebias guitar amp if using same tubes???
  65. To tone control or not to...
  66. EL84 plate voltage.
  67. 6bx7
  68. Anyone in the L.A. area with scope willing to troubleshoot?
  69. Transformers in series OK?
  70. Russian 6CA4/EZ81 Equivalent?
  71. Amp build recomendation.. for Frazier model sevens
  72. How can I make a DIY AC probe for my DMM
  73. PSUDII Question
  74. EH KT88 Glowing Welds?
  75. Not quite DIY
  76. Searching for a TUBE datasheet GE GL-421
  77. 6EM7 Unit 1
  78. woohoo! RDH4!!!
  79. VTL hum
  80. Use CL-90 to slow 5Y3?
  81. Allen Wright, 1947-2011
  82. Octaves/Ghost notes from Bogen K10. Caps?
  83. Q1, 300B S-Splot, 360V 60mA? Q2, James 6112HS or 6123HS?
  84. What audio output xfmr for a 6BM8 pp amp?
  85. Parafeeding an EL84 SE(T)
  86. Interesting video from the production of KR tubes
  87. Gassy WE 300b
  88. Bogen Pa Identification 6l6 x 4 dual rectifier
  89. SE output transformer DIY
  90. Tektronix TDS714L or other Tek TDS series digital oscilloscope for stereo?
  91. AA 151 or Scott 222
  92. Toroidal Output Transformer
  93. Hytron HY615 Data ???
  94. Can I use a 12AX7 with CT 6.3V?
  95. torroidal power transformers
  96. What amp is this
  97. B+ ramping up before CCS filament - danger?
  98. Telefunken Magnetophon 85 --> EL95 Guitar amp
  99. Recommend a good plate choke for 26 tube!!
  100. S11E12 TUBES
  101. Low dropout 6.3v
  102. how to adjust the filament power ecc83
  103. Cary/AES - AE3 Linestage Help Needed !
  104. 5867a
  105. 6V6/12AX7 Project Question/Help
  106. Ultra Linear Push Pull Tube amp
  107. A little help with 6v6 screen needed.
  108. Output Transformers... Decisions Decisions
  109. Need Help. PSU not voltage down from design
  110. D/A preamp FFT measurements for review plz
  111. Type 40, 12A, 112A(syl)
  112. American Audio Picker
  113. one half of a tube in schematic????
  114. estimating power rating of Telefunken transformer
  115. Where is mistake??
  116. Building a 6s45P amp - transformer help
  117. High-End preamplifier with ECC82!
  118. Attempting to recap a couple of old Ampex 2010 suitcase amps
  119. Hi specs rectifier needed
  120. Lux 6056N Intertstage Transformer
  121. Aikido Line Stage / Buffer
  122. JJ KT88s and other octals
  123. Triodes from Russia
  124. Little help needed / do I have a bad tube or really good tube?
  125. 5.1 channel 807 SE amplifier
  126. Plate loaded 6N6P over SRPP 6N6P any day of the week...
  127. Voltage multiplier vs transformer for preamp HV power supply
  128. does tube bias drift like silicon devices
  129. What are the best pots for less than $50 each?
  130. Best EL34 For Triode mode
  131. ASL AQ 1002 PP KT88 problem with input stage
  132. 2A3 Amp schematic suggestions?
  133. what I need for safe use mercury rectifier
  134. Anybody listened to Glow Audio?
  135. Tubes too close to output transformers?
  136. Help with stereo to mono for project
  137. MC3500 with 807 tubes and modern driver tubes
  138. Multiple Film Caps in parallel, Problems?
  139. I need a project......preferably a HIFI amp..........
  140. Aguilar DB-900 question
  141. REN904 for linestage?
  142. Urgent advice on Chinese purchase please!
  143. VR tubes, minimum current
  144. Senior Project Tube Preamp
  145. Antek AS-4T430 measurements
  146. small, light dc coupled 6ea7 amp sanity check
  147. 6S33S SE Transformer Set
  148. I think I blew my amp!! plase help
  149. Genalex VS Mullard 12AT7 & 12AX7's HUGE DIFF?
  150. testing 6550's on a Hickok 539b, same as KT88?
  151. 9V tube drive pedals - worth it?
  152. Music Angel XD-850MKIII 300b integrated amp
  153. 8150's
  154. More junk from China
  155. 6GM8 above 8mA/24V
  156. One Tube Sound Better Than Four?
  157. HK Citation V rebuild - any advice?
  158. 6GM8/ECC86
  159. Sound Valves vtp-101 Schematic
  160. ~17-18w sweep tube with large plate cap
  161. Fisher 500B Comparison
  162. New build of P-P PCL86 Amp
  163. Transformer question
  164. Can 110V Quad IIs be configured to 220V?
  165. Advice needed re repairing Audio Research VT100
  166. Yaqin SD-CD3 Tube Buffer - upgrading caps
  167. Best value speakers
  168. Peavey Windsor Studio The output tube El 34 burned out
  169. Gyrator PSU's in tube amps
  170. EL34 Amp Running KT66, Safe ?
  171. MJ Optimized Valve Regulator
  172. Need JAN 6418 tube stereo headphone preamp kit advice!
  173. Electronic choke
  174. Can you please help identifying this amp?
  175. [TubeAmp] Beginner's questions
  176. .47uF output cap to 1uF?
  177. Spark gaps on output transformers
  178. St 35 or St 70?
  179. Pi wound output transformers
  180. miniatures 6n1p 6n2p
  181. Begginer questions about a guitar pre amp
  182. HK Citation V schematic?
  183. Help! can't find ef86 on my Hickok 539b roll chart! and need a tube project
  184. Physical Oscillating noise from phono stage
  185. PP 6c33c-b
  186. Modifying the classic Williamson
  187. eimac 152TL and 304TL
  188. LTspice model for Dynaco A470 Output Transfomer
  189. audiodesignguide.com PP KT88
  190. One more 4P1L SE
  191. Mount rectifier above torroidal transformer?
  192. Extending Tube Sockets off a PCB
  193. EMG 200 tube tester
  194. Looking for a great starter stereo P-P amp
  195. Question regarding value of Telefunken tubes.
  196. Magic Eye tube
  197. Partridge Transformers
  198. 6CG7 replacing E88CC in SE KT88 Amp.
  199. Omit the filament windings -- LTM8033 from Linear
  200. Best position for bleeder resistor?
  201. anyone have experience with a Radio Craftsmen C400?
  202. Amp-A, a variation to the EL84 Push Pull theme
  203. tony's 6LU8 push-pull power amp build
  204. First Post Here
  205. MFA Lumi sings high-pitched tunes
  206. Power tubes not drawing current
  207. replacing tubes with circuitry
  208. High Voltage Regulators (Maida or zener)
  209. GU-81m tube amp schematics???
  210. Suggestions on SIPP driver stage
  211. How to eliminate the "white noise" for the 300B tube amp?
  212. 6BQ5 UL Curves?
  213. Looking for simple Schematic of 2A3 or 45 or 26 Headphone Amp SE OTL ? anyone ?
  214. 6N1P and 6N6P OTL headphone amp
  215. New Project
  216. Understanding Steve Bench's regulated power supply
  217. Preamp with buffer design
  218. JP200 preamp?
  219. IFI 6SN7 X3 (6N8P-6H8C) Tube Valve Preamp Kit Board from eBay
  220. New Tube Manufacture?
  221. Lowering B+ in PS
  222. Rectifier tube blows
  223. direct coupling
  224. Need some help with these tubes
  225. Edcor GSXE10-8-5K primary Inductance?
  226. SE 2.5k secondary 2w guitar amp
  227. My "Red board" chassis
  228. PP EL34
  229. Building something better with a Chinese SE EL34B Amp DIY Kit
  230. Problem with my amp, and I have run out of ideas
  231. Value of coupling caps
  232. Testing 6BQ5 on Hickok I-177B
  233. Stepped Attenuator for AI Modulus IIA
  234. Tubes are beautifully colored....right?
  235. Differential Input for Aikido Amp?
  236. MY BEST OTL PREAMPLIFIER
  237. Valve testing machine
  238. Line stage with 12AU7 and 6CG7 anyone?
  239. Vibrating capacitor
  240. MingDa MC845-C or Opera COnsonance Reference 9.9
  241. Lower gain 12AX7?
  242. Needed: schematic for Ming Da MC34ab
  243. 12AX7 high gain guitar amp
  244. Solid State Cathodyne Phase Splitter Device?
  245. My Wave Isn't Square.
  246. 6J7 driver in WE91 like amplifier
  247. F2a - C3m Monkey
  248. balanced/unbalanced questions decision time
  249. Stern's saville double 6
  250. GM70 psu transformer.

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