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  1. Gun or Iron?
  2. Shanling SP-80C Problem - DC Spikes?!
  3. Silvertone Organ amp, weird osc section.
  4. Need some advice on a LTP input stage.
  5. CAT 110V to 220 V conversion
  6. When is a compactron not a compactron?
  7. Looking for big Ni lams
  8. Three PP KT88 designs. Which one ... (please;-)
  9. EAR 834P needing repair
  10. How to make non-polarized electrolytic cap?
  11. Toasted PW tranformer?
  12. Tube Cad from Glass-Ware questions
  13. U-links for earthing
  14. Supreme 45 tube amp
  15. Boxing Day Special
  16. Look what Santa brought!
  17. Soft Start for Tubes
  18. Need help to check out this preamp schematic.
  19. What dimensions for perforated AL sheet?
  20. NC pins on submin tubes
  21. Cheap alternative to EF86
  22. MOSFET follower driver oscillation
  23. Fender "Twin Reverb Amp" has no output.
  24. Hi-Fi system build
  25. Car Tube Amp
  26. Tube Identification
  27. Supratek schematics?
  28. Choice of OTL output capacitors
  29. Feedback scheme.
  30. Christmas Eve
  31. Best tubes for Scott 222
  32. HH Scott 222 speaker recommendations and upgrades
  33. mixing coupling cap types
  34. Transformer chassis layout
  35. SimpleSE / Edcor CXSE OPT
  36. Star ground help
  37. What causes my 0D3 to extinguish?
  38. converting UL in triode
  39. Beyer Dynamic BV35570
  40. Lundahl LL1527 phase-splitter
  41. Morgan Jones HPA ...strange startup behaviour
  42. Best Sounding Phono Input Tube
  43. We417+300b
  44. class-A PP amplifier with 2x 845 question
  45. Kismet-300B-amp
  46. Will differential share the same THD characteristics as SE, if same triode is used?
  47. The biggest bunch of tubes ever seen
  48. DHT AC Filament Noise
  49. augmented cathode follower?
  50. Tube amp find in old theater
  51. Is there a better amp kit????
  52. figuring amplification factor of a tube
  53. SE 6l6
  54. Need help
  55. Dynaco (Dynaclone) PA060 transformer
  56. Switching power supply for tube filaments possible???
  57. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  58. DN2540/2535 fun and games
  59. 6P3S SE amp requesting
  60. Newbie needs Magnavox console troubleshooting tips
  61. 6bBYGA x2 as full-wave rectifier?
  62. Digital volume/tone control in Tube amps
  63. plotting load-line for OTL amp?
  64. New SE 6P15P project
  65. New Production Shuguang Type 50 Tubes
  66. Running different tubes
  67. Fairchild 260 rebuild questions
  68. Filament Voltage vs. Hum
  69. drawing a loadline from schematics
  70. Know this tube? 10J12C or 10X12C ...
  71. Precision Fidelity - C7 Mods...help Wanted!
  72. stupid newbie: what is this transformer???
  73. Anyone else having problems with Mercury Magnetics transformers?
  74. EF86-EL84: too much gain!
  75. Balanced Power
  76. GTA 300B SE Mk.II Power Transformer
  77. Tube Shields
  78. Some basic questions about s-5 amp kit mods
  79. Novice Voltage Regulator Question
  80. The Critical Ear
  81. Tube matching service - As found on Craigslist
  82. 6j1 question
  83. Duosonic 40's era record player
  84. 6bl8 el84 nfb question
  85. 6T9 push pull
  86. 12AY7 circuit?
  87. E810F: RIAA circuits
  88. need EL519/6KG6 spice 3f4 model
  89. enough gain for James tone stack
  90. Anyone recognise this amp?
  91. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  92. matched tubes?
  93. List of current production types
  94. Soundcard greater than 24-bit
  95. Replacing Valves Leak Stereo 20
  96. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  97. I Damaged my Amp?
  98. EL84 Triode PP Design
  99. pentode with grid AND cathode tied to gnd?
  100. What d'you put in the PSU chassis, and what in the circuit chassis?
  101. a real no-brainer question about 1/2 tubes
  102. 813 power supply question
  103. ESR of motor-run caps?
  104. OPT-102 - data? (Audio Electronic Supply)
  105. Help me out with a circuit design
  106. Partial Feedback EL84PP - Not quite as expected (yet)
  107. Preamp suggestions - Help a hack have some fun
  108. 6GK6 Ultralinear
  109. Vacuum Rectifier Question
  110. LM4702 meets up with 6550's
  111. 6bx7gt envelope temperature
  112. Counterpoint SA 3 schematic
  113. Tubes measured in microhms = mA..?
  114. Checking ARC SP9
  115. 6J11 Datasheet anyone?
  116. Help cleaning tube pins
  117. Best way to use a PAIR of 6SL7ís to drive a 300B?
  118. preamp cathode bypass cap benefits
  119. EF184 or (EC)L82 radio amplifier?!
  120. 5687 for Aikido
  121. Pre Amplifier Out Sockets
  122. Recommended output valves for this transformer
  123. power tubes and learning SET design
  124. Phono pre-amp Question
  125. TVA-1 cathode resistor value
  126. need power tranformer ideas
  127. Cary Cad-300b Se
  128. newbie question about 7591 cathode bias
  129. 5814 Raytheon Windmill Getter late 50's
  130. Fundamentals of tube amp design
  131. 7868 amp sounds good but low volume
  132. How does class AB2 sound?
  133. 6sn7 brand
  134. Might speaker filters be in the wrong place?
  135. Problem: attenuation after cathodyne and CF
  136. LED bias and differential pairs
  137. Kimmel Mu stage summary sheet
  138. Tube buffer for car audio
  139. Practical PSE thinking.
  140. I need help on a Simple guitar/vocal pre amp.
  141. Kr300bxls
  142. Biggest noval dual triode?
  143. 2 amps with 1 set of speakers?
  144. tubeamp kits
  145. Tripletone amplifier
  146. Tube curves tracer
  147. Help with Shunt Regulation and Noise
  148. Plug 'N' Play B+ time delay
  149. Hot Rod "Bronco" project/TRANSFORMERS
  150. Precision PA conversion help needed
  151. Caps in Voltage divider Heater Bias ?
  152. Looking for Melos triode 200+ schematics
  153. ETF07 brief summary
  154. No response from Vacuumtubes.net
  155. dynakit pam selenium rectifier replacement help
  156. Adjustable Fixed Grid Bias
  157. Best output transformer for 300B
  158. Transconductance of E88CC,6922,6N23P
  159. Finding The Root Of The Problem
  160. Beard P35
  161. purple tube heaters...
  162. Which 12AU7 and 6V6GTs?
  163. 6f2 - 6n1???
  164. Help with Schematic
  165. Class A Push Pull with 6L6GC
  166. EL84 driver tube, with less than 5mA current
  167. Sleeping Sickness
  168. 50L6-GT or 6W6-GT
  169. Help ID this transformer
  170. Tube dropping - Help?
  171. For anyone running a K-502 with a FR driver
  172. Active crossover
  173. General guidence building guitar amp
  174. Pounds, Shillings and Pence
  175. Trying to learn something, against my better judgment
  176. Battery grid bias to fixed bias in Toccato?
  177. PLS take a look!
  178. Use for 5K:8 PP OPT?
  179. Low amp Impedance input and high dac output
  180. The Magic of a Name
  181. which edition of Morgan Jones' books?
  182. altec 1530 schematic
  183. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  184. 6HB6/6HA& Spud?
  185. schematic diagram golden tube se40 for repair! help
  186. Reliable B+ PSU for pro preamp
  187. Help me find some info please
  188. Some tube radios
  189. Electro Harmonix 300b...shorting problems?
  190. Aikido linestage tube choice? (again)
  191. Teeco 1220??
  192. magic smoke pilot aa903
  193. PP bias balance pot
  194. Jolida JD 502A
  195. Cathode Bias for SimpleSE
  196. TRemPre malfunctioning
  197. HV benchtop power supply, help on opamp setup
  198. Transcendar Output Transformers ST70
  199. Unofficial Tube Market Survey
  200. testing 6DJ8s
  201. 6L6 AB PPP stage; does it make sense?
  202. 7868 tubes - replace with 6L6's?
  203. Vintage Amp...too much gain on CD
  204. ETF07 - Last possibility to join
  205. Tube 7403
  206. New SET: JE labs simple 45 or tubelab SE?
  207. Melos triode and computer as source: BUZZ BUZZ BUZZ
  208. 6SN7 Cascoded CCS
  209. 7591 se tube amp?
  210. Sovtek 5881WXT/Quad II
  211. Adding more capacitors to an AMP
  212. Tube Characteristics
  213. Tube guilt
  214. KT88 or 6550
  215. Single ended OTL Transcendent
  216. K-12 kit, buzz in R channel
  217. Hickok 752A repair
  218. my new tube line stage
  219. Audio Innovations Series 200 Phono Stage
  220. is it correct to calculate OTL?
  221. Late Halloween Cartoon
  222. on/off/on switch for bright/bold?
  223. Another CCS for tubes/valves: PCBs
  224. Customdaveus
  225. newbie questions on Bogen M330A repair
  226. crackling sound from one channel
  227. Cosmos Valve amplifier
  228. The Vacuum Tube Truth
  229. Inverted Triode SE OTL
  230. Negative feedback problems on ECL82 SE amp.
  231. Cheap tester?
  232. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  233. Fisher SA 1000
  234. Hot Hot Hot
  235. Dynaco PAS-4 manual
  236. amplifier pp with 6p3s
  237. rusty chassis - what to do?
  238. Use 9 pin Aikido PCB kit or buy 8 pin ?
  239. Where to find data sheets?
  240. how to reverse signal for Common Cathode circuit
  241. Audio note M2 power supply resistor value
  242. Are 6DZ7 to Rare to be fun?
  243. 7868 substitutes
  244. Millet Hybrid - stacked buffers
  245. Repairing an old tube raido
  246. 3 way ultimate DIY phonostage match!
  247. wanted sv572-3
  248. General Aikido power supply question
  249. question about beefing up my monoblocks
  250. multichannel tube amp

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