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  1. Help!!! My Audioromy FU29 amplifier was fried!
  2. Take a look at my transformers
  3. input transformer for Simple SE Tubelab amp
  4. miniblok 2 distorted sound
  5. Appropriate replacement OPT for Fisher 30-A with 2.5Ohm Secondary
  6. For hk citation II owners\experts.
  7. Dynakit Mark III amplifier
  8. Transformer in reverse current doubt
  9. CELLINI-2 a hybrid
  10. Need help starting
  11. ARC (Audio Research) VT50
  12. mixed mode bias
  13. 2C52 datasheet
  14. Yaqin SD-CD2 tube buffer - upgrading stock tubes
  15. 12v Tube amp
  16. Is this ok
  17. 12ax7 Bass Preamp Power Supply Question.
  18. Help a newbie out with his Sherwood S-800iii
  19. A&R 4008 output transformers
  20. Kulish Circuit
  21. A little digression= read on
  22. Sweep tubes and G3
  23. CCS - Help!
  24. Another odd-ball PA amplifier
  25. 25W with 2xEL86(6CW5)!
  26. Question About High-Fidelity Magazine 195x - 196x
  27. The HEATHKIT MA-12 a MULLARD 5-10 In Disguise.
  28. who have schematic of Phenix OTL G3?
  29. CHAMP8 with ECLL800
  30. Drive requirements.....
  31. KT88 hybrid amplifier
  32. 2300 ohm vs 5000 ohm output trans question
  33. Has anyone used this regulator?
  34. Diy HiFi Supply Tram Mk2 DHT OTL Preamplifier
  35. Current mirror circuits
  36. splitter/driver stage
  37. Would someone explain this amp to me please?
  38. What am I experiencing?
  39. 6U10, 6AC10, 6D10, 6AV11
  40. My debut into the vacuum world: Yarland FV34B
  41. Resistor value tweaks for Radford STA35
  42. do you own a chinese tube integrate? does it.... smell?
  43. Needs help to find transformer
  44. 12AU7 / 12AX7 push-pull
  45. Subwoofer connection?
  46. Ultra-low Noise Valve Regulated PSU. How to?
  47. One channel has less glow
  48. 6l6 tube amp troubleshooring progress
  49. Baldwin organ transformers
  50. has anyone used a chip for an input driver to a 2A3 or the like??
  51. Good PSU for HT upt to 15mA??
  52. Edcor transformers have arrived, but really puzzled!
  53. PCL86 Tube Pre-Amp for guitar. Any Idea?
  54. Single tube, Single ended, 20W, impossible?
  55. Stan's Aikido Build
  56. Power transformer rating
  57. 7w 300b vs 350w Car audio observation (car loses)
  58. Seriously considering doing an OTL - but . .
  59. Emulating remote cut off
  60. Cheap Sakura Hybrid Tube Amp Modification
  61. screen tap on OPT
  62. Understanding Cathode Decoupling
  63. How to test interstage transformers?
  64. DIY Tube Mic
  65. Modified 6C33C
  66. Counterpoint SA-3.1 Rebuild
  67. 6V6 flare at start up
  68. Tube aging, in-circuit test?
  69. HV Regulator board
  70. What kind of top cap for 6V7G?
  71. Changing bass amp output transformer
  72. First timer wood chassis hints
  73. High voltage and heat sinks
  74. GM-70 family with top cap anode?
  75. testing 8417's on mercury 1000
  76. 6N3 Tube Preamp with DC-DC converter
  77. Question About Worn Tubes
  78. help ID 4-500 old stock tubes
  79. 6SN7 SRPP preamp
  80. Reduced Heater voltage to reduce noise
  81. ECL82 monoblock 'spud' and a question
  82. Small Tube/SS hybrid amplifier design 9V
  83. Gibson PA Amp
  84. Plate load impedance
  85. Dynaco 440 Transformer Cathode/Screen Taps 6P1P 6AQ5 UL transformer
  86. Good idle current for NOS 7868's
  87. 6N2P - WHAT THE?????????????
  88. Got an old Westinghouse radio today!!!
  89. Distinction between Driver and Output stages
  90. Need a decent chassis punch set
  91. UL P/P KT88 Class A
  92. Problem with 12ax7 phono stage
  93. LA2A parts, T4B spare
  94. Was ist das?
  95. Rset values for IXYS IXTP01N100D
  96. Dutch Book
  97. Tube amplifier chassis damping
  98. How the heck do I solve this problem????
  99. Pentode to Triode Operation
  100. AbouT the PSU II simulator & the "Cockeyed Bridge"
  101. GM70 bias & IT ratio question
  102. Transformer or choke sealed with metal case
  103. Peavy windsor tube head issue
  104. Projector 6V6 Tube Amp rats nest p2p
  105. micro pre amp
  106. Aikido - calculating Rk for new tubes
  107. Steady thumping noise in preamp
  108. Leak Stereo 20 hum and buzz problem
  109. 5V AC maining for filaments
  110. Topology for Schade
  111. Thorsten 6SN7 Line stage.
  112. 12v B+ Tube buffer 12AX7
  113. 300B preamp - best operating point
  114. home made tube amp with 12v b+ how to build one?
  115. Engineer's Amp
  116. Show My Tube Headphone Amp [Add-On Modulars Design Supporting IPOD/IPHONE]
  117. FFT for adjusting tubes
  118. Music to soothe the savage tubes.
  119. Voltage divider instead of expensive volume pot or stepped attenuator.
  120. Question about Hickok 539C
  121. Long-tail pair phase splitter
  122. LM317 calculator for filament circuit
  123. Self-Biased Cathode Follower Output Point
  124. filaments power supply
  125. Power tube buffer
  126. Latching Switch Assemblies
  127. Easy Way To Reduce 251V to 235V?
  128. EL84 Push Pull 25-30 watts
  129. Exploded view of valves
  130. Infineon BSP135 depletion mode mosfet
  131. Show us you COMPACT tube amps !
  132. HV Regulator
  133. Help with my new system
  134. Anything similar to the RNT900 regulator?
  135. The 3W Hammond 125ASE output transformer
  136. Carbon Comp vs Metal Film
  137. Different brand valves
  138. Buzz In Guitar Amp
  139. quad el84 or PP el34
  140. Inexpensive wire source
  141. to MC30 or not to MC30
  142. unbypassed cathode resistor
  143. Supro Golden Holiday Schematic Needed
  144. Does this transformer work?
  145. Max grid resistance for GM70?
  146. Stacked power supply HELP!
  147. Parallel pwr supply chokes for add'l current?
  148. Need help to verify Amperex 7119's genuineness
  149. Need help/advice on a problem with console amplifier
  150. Getting started with my VERY FIRST project
  151. PCL Vintage Amp VA1956 - transformer issue
  152. Help to Identify
  153. 300B based preamp....looking for schematic
  154. USB Oscilloscope
  155. RH84SE, use as headphone amp ?
  156. The New Yaqin/Music Angel/Meng & Others Discussion Thread
  157. Power triode bias by tube rectifier
  158. Two questions on IR volume control
  159. 25 watt output tube
  160. DC heating my 300b
  161. RNT-900 regulator
  162. KT61 Equivalent - Ping Waveborne
  163. EICO 666 meter needle moves too fast/pegs too hard...help?
  164. Eico 666 meter movement speed help
  165. Running a tube without heaters
  166. SE-BAL-SE Switching
  167. What makes is stereo?
  168. Triple Checking Calcs: metering bias with mA meter
  169. EL84 & 12AX7 Amp possibilities
  170. Weird issue with tube driver.
  171. 6E5P
  172. 6B4G / 6S4S Biasing Question
  173. Quick tube wear question
  174. Looking for a tube amp
  175. Internal placing of components
  176. Preamplifiers v power amplifiers
  177. LP2 dht driver
  178. hammond 1650
  179. reverb
  180. Load For PSU
  181. *PING* Tubechimp
  182. Revamping of a Michaelson & Austin TVA-1
  183. 6V6 Behavior W/Fixed Bias (SE Amp)
  184. Low noise, low microphony, low hum valves
  185. 6L6 / 12AX7 push-pull
  186. bowei amp for audionote ax-2 speakers?
  187. Yet another Priboi thread...
  188. Help Old Radio Philips
  189. Distortion discussion from mosqueto Hybrid thread
  190. Sovtek 6N1P Microphonics
  191. ECC86 / 6GM8 Radio Receiver Help
  192. Los Angeles
  193. Op point for 6au6/6gu5 in P-G feedback 6550
  194. Tube Pre-Amp Schematic Needed
  195. find a YAQIN 5881a amplifier
  196. 11N90C in the SBCCS circuit
  197. Help replacing a PSU choke - How to choose choke
  198. does this look like a joke to you?
  199. Electronic Choke for Valve Amplifiers
  200. Sockets for a WE429A
  201. To bypass or not to bypass...
  202. DIY Curve Tracer
  203. 300B filament winding center tapped?
  204. help me decide,headphone amp - parafeed or normal tx ?
  205. 7060 vs 6AN8A
  206. Psu
  207. Blackheart amp moding question
  208. EDCOR Output transformer for 300B
  209. 80 or RGN1064 Scenario
  210. TUBENEWB - Quad KT88 Monoblocks
  211. CCS in Differential phase splitter?
  212. Need schematic for Smart 2x150vt
  213. Antek OPT
  214. 6DQ6 for audio power amp?
  215. Anyone identify this Mullard?
  216. My Mullard 5-20: some photos and a question
  217. Tube can work in low volt~~fix your knowledge
  218. A problem with a tube receiver
  219. Auto Transformer - safety advice
  220. Where I could find tube in San Jose
  221. 6Н30П spice model for MicroCap ?
  222. Transformer input and resonance
  223. GE6111 Preamplifier
  224. Where to buy audio tubes in Europe
  225. Play iPod into 1955 Record Player's Tube Amplifier
  226. To Schade it , or not..
  227. questions on input stage
  228. Planar/Lighthouse triodes for Audio?
  229. The Best coupling cap..THEL??
  230. 211 SET 40W output design and mfg.
  231. Volume Control with Loudness and no Taps
  232. Use for 4k PP (non UL) OPT's?
  233. Heathkit Oscilloscope O-12
  234. Filament Autobias
  235. Shelby NC Ham Fest
  236. 2A3 Spud
  237. Resistor as a load
  238. How to balance pushp pull DHT finals
  239. 240v to 220v
  240. Hammond 272 FX plate voltage
  241. Drawing Load Line for Parallel Output Tube
  242. question about swapping el34 for kt77 in my tube amp
  243. 6 volt recifier tubes
  244. PSU Capacitor Selection
  245. Output transformer sizing...again...
  246. Power supply cabling
  247. Voltage doubler using PSUII?
  248. Rectifier Tubes in SE Amps
  249. 6v6 SEP
  250. 1967 Pioneer SX-34, 11W, WORTH FIXING???

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