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  1. New tube amp diy kit required power?
  2. Decoupling DC heater supply between valves..benefit?
  3. The Aikido Comedy: Straight Talk
  4. Recapping tube preamp questions
  5. A tube amp that's actually a tesla coil.
  6. Tube "Orientation"
  7. 18 watt tremolo vvr
  8. Pre amp output, would this work?
  9. Aikido Power Amp.....Possible??
  10. 12AX7 questions
  11. 6550 PUSH-PULL
  12. CCS at plate? Unknown schematic part
  13. Most odd grid choke behaviour.
  14. Spec for Altec TP-404 Transformer
  15. why do wimpy drivers for 2A3 work as well as they do?
  16. Seeking advice on Tube buffer / pre-amp
  17. 8x Push-pull KT88 class A in triode mode
  18. Tube Pre dull into Tube Amp - cause ?
  19. FINALLY I can start building my GM70
  20. Russian triodes ГИ-15Б arriving in a few days
  21. Cap or resistor
  22. KT88/PP driver confusion
  23. Simple SE GU-50
  24. Darling 1626
  25. 01a DHT Preamp
  26. Suitable tubes for Gomes output
  27. phono line stage project
  28. Whats wrong with this circuit?
  29. Any Newcomb Gurus.?
  30. Preamp Tube MU Level?
  31. SRPP Paraccordion topology ?
  32. Replacing 6922 with 6FQ7 in Conrad Johnson ET3 preamp
  33. Modification of a Chinese KT90 PP amplifier
  34. Tricky Headphone Amp design for AK4396
  35. How to know voltage bias adjustmentwith this data?
  36. Strange Stability Enhancement Trick
  37. has anyone bought tubes from http://www.tangotubes.com/
  38. “Earmax / G3 / Morgan Jones / Cavalli” Headphone Amp Reissue with 6SN7 Steroids
  39. Ever heard of British transofmer company "Ro"?
  40. A friend gave me some random tubes...
  41. Replacement for 6e2 without vu
  42. PP GU50 triode strapped project
  43. Tube VAS stage questions???
  44. OT impedance help: 9.8 vs 8k
  45. popping & crackling noise from restored valve AM radio
  46. Choosing 6550 PP Output Transformer
  47. Reversing Interstage Transformer
  48. Aikido 9 pin All in One Build
  49. KT88 PP UL Design Help Needed
  50. Cayin A-300B schematic needed
  51. Please Recommend a Preamp!
  52. Which Antek transforms to use
  53. Integrated Amp as Preamp and Subwoofer amp
  54. Uses for 715C Pulse Tetrode
  55. PP KT-88 w/866A MV HT Supply
  56. EC88 (6DL4) NOS Mullard - any use at all?
  57. Advice sought on thermionic headphone amp
  58. Eico HF-81: Input Selector bypass
  59. 12b4 bass rolloff problem
  60. No Right ch sound on yaqin mc10l
  61. tester causing bias to rise?
  62. Heaters & Filaments: AC vs. DC
  63. Old HP power transformers... need some wiring advice!
  64. Old HP power transformers... need some wiring advice!
  65. RCA RS177H just dosen't sound right! Caps?
  66. silicon or tube rectifier in an EL34 SE
  67. Help original 300G LEGACY
  68. 813 Tube-Steak!
  69. Basic 12AU7 heatrr question
  70. Shipping a vacuum tube to China
  71. 6DJ8/ECC88-SRPP Tube Preamplifier
  72. Help needed: hum noise in Eimac 250TL driven by 75TL Single End Amplifier
  73. Found tons of Tubes,and many other parts
  74. Ampeg B15 Heritage Clone Help
  75. EZ80 Data Sheets, R-Lim and Max Cap
  76. Filament Voltages CT vs Non-CT
  77. Troubleshooting help needed
  78. What is it? Tube guessology
  79. Bass & Treble controls, or rather lack of.
  80. Quicksilver 8417 Power Supply Question
  81. Why a sudden distortion in treble of this SET amplifier?
  82. 5f1 Champ grounding
  83. Antitriode PP with EL34
  84. How to calculate Pout for Push Pull design
  85. Newbie Question - Power Transformer vs Isolation Transformer
  86. All tubes red plating
  87. Exceeding bias voltage?
  88. Vacuum State RTP Preamp Problem
  89. Alfred Morgan Tube Preamplifier
  90. 845 vs GM70
  91. Looking for project suggestions - 12au7 pre-amp?
  92. Contemporary tradition breaking amp schematics.
  93. ul - triode coupled screen grid resistor
  94. Optimum driver valve for an interstage-transformer-driven SE 300B
  95. 6C33C
  96. Soundcraftsmen 5050
  97. Tetra Phono Question
  98. WF tube
  99. Opt laminations isolation
  100. Heretical Source
  101. Broskie auto bias
  102. heater wiring - the Good the Bad and the Ugly
  103. AC Line Filter
  104. Counterpoint SA5000 Help
  105. Problem with ECC83 measurement values - please help
  106. Newbie Bias help ?
  107. AV305m AVVT
  108. Pot mechanical resistance and restoration..
  109. HMV Little Nipper mantle radio = 1 STEREO
  110. What's the simplest way to adjust filament voltage?
  111. GDAP-06
  112. Audio Note L6 - Schematic?
  113. Preventing HV flashover on socket pins
  114. Best "Vintage" Stereo Pres that SoftClip and lotsa Harmonics
  115. SE with PP OPT's?
  116. 12ax7/12AT7 Recommendations
  117. HELP: Eimac 75TL amp high frequency roll off
  118. unison reserch s8, let's build it!
  119. Where do super high end companies get their transformers?
  120. Tube Tester Panel Meter
  121. Attic find AMP
  122. Help getting Imax and Eb approximations for a push-pull amp
  123. Is this amp OK to buy, or is this a problem?
  124. Swirling Harmonics, can it be described
  125. Line stage with u-follower and nfb
  126. Newbie looking for help, pre-out to tube amp.
  127. Unison research integrated ampliphier schematics
  128. FET CCS anode load and RFI/oscillation.
  129. Old schematic
  130. Newbie Looking for Replacement OPTS Motorola Console Amp
  131. Merlyn- May AudioXpress
  132. How to clean tubes?
  133. does the 3A5 have the stones to drive a 2A3?
  134. New amp: 13DE7 SE hybrid
  135. My amp is motorboating, improve it with b+ regulator ?
  136. Can you identify these amps?
  137. Sowter SA01 - anyone used it ?
  138. Mikael‑Abdellah‑SE‑KT88 Bias & Voltage readings Help?
  139. Resistors and combinations
  140. thr light in pcl82
  141. Bogen L330 - Worth restoring?
  142. Supro model 24 amp transformers
  143. Those magnificient television tubes
  144. Demagnetizing OPT?
  145. Real DIY fun hybrid testing.
  146. Extreme hum in EQ output
  147. 46 triode-strapped DHT spice model
  148. SET output impedance vs speaker impedance
  149. Help with layout of tube preamp
  150. eico HF-65
  151. Wirewound bias pot problem.
  152. Driver for Telefunken RS242 in class A2
  153. Help on my signal generator
  154. another tube fact or fallacy
  155. Gap in Transformer Lams - OCD Check
  156. how to test...
  157. chinese tube amp
  158. tube/valve pc-80
  159. GM-70 All done
  160. Peavey 60/60 classic series schematic
  161. preamp for reciever?
  162. Designing a Tube Rectifier Circuit
  163. Bogen RP40A transformers....what to build with them?
  164. Harmony guitar amp restoration questions
  165. Heads Up for "El Cheapo" Builders
  166. replacing kt66 valves
  167. Help with power transformer identification
  168. 6-8x el84 Per channel
  169. To vary a signal pentode to triode in stages
  170. I have 2 choices for resistive load, need opinions.
  171. Tesla PCC88 7DJ8 dual triode - Help Needed.
  172. PP6550
  173. LT1083 interesting startup problem
  174. ECC33 Driver Stage
  175. Hiraga's Improved Concertina Phase Splitter
  176. 274B a direct replacement for 5AR4/GZ34?
  177. Help power up akai M8 amps
  178. Sonic Frontiers Power 3 Help!
  179. ImPasse Preamp now online
  180. Power supply for tube preamplifier with PCC88
  181. Don't know where to start...
  182. DIY noob
  183. 300B amp cathode bypass
  184. Amp hum with Preamp off
  185. First Project with these tubes
  186. 7189a socket rewiring
  187. Hybrid rectifiers in PSUD2
  188. Feedback / experience wanted on building the Audio note L4 Integrated EL34 PP Amp Kit
  189. About 6AS7BTL Amp
  190. Output Stage Protection Circuit
  191. Silly basic layout question - AC heaters
  192. heater voltage variation for special tubes
  193. Want to build a 807 Vixen.. Looking for help.
  194. Connecting Speakers to Yaqin 10L
  195. Gyrator Filter
  196. 6ab4 tube socket mounting
  197. Any Moto heads? Need OT advice please
  198. Did I break my tube? (new blue glow)
  199. I need help with ccs based LTP
  200. 4033L- rare triode tube.
  201. Single tube linestage schematic wanted: 8CG7
  202. Tetra Sans PS
  203. Tone controls
  204. Vintage Heathkit Electronic Switch as soundcard interface
  205. K-12M extra caps??
  206. Looking for Tube Amp Kit Recommendations
  207. magnatone 280 schematic
  208. high voltage after cap. change
  209. My first tube amp
  210. Recommendations for 6888 triode operating point?
  211. Mullard 12AX7 part uniformity
  212. 6n15n-EB confusion
  213. Noob Question: Phono Preamp
  214. Transformer data required P782
  215. Snubbers on Power Transformer Secondaries
  216. CCS for 6V6 PP amp
  217. screen voltage for triode strapped pentode
  218. New Driver
  219. purpose and value importance of resistor
  220. Values for Vintage Amp's & Preamp's Paragon 12(70's) & More
  221. Help with amp please.
  222. Another Discrete Current Source
  223. 834 Triode amp
  224. Determing the reason for mystery? cap in schematic.
  225. Dyna ST70 to Dual-differential EL34 triode amp project
  226. Tube Signal to Noise Ratio / Dynamic Range
  227. fluctating bias
  228. Just tried a Wire Wound pot for volume.
  229. LED's in the cathode..
  230. Dr. Arthur Loesch
  231. Counterpoint SA-220 mods
  232. Broskie P-P Bridged Output Stage
  233. Would a member fluent in technical German please have a look at this link?
  234. Damaged tube? EL84
  235. Heathkit AA-161 EL84/6BQ5 PP mono integrated amp mod
  236. vk-2100 mod question please
  237. Heater supply
  238. 6111/6n16b - linestage noise problem
  239. OPT specs
  240. Re: Tube Line gain stage with pcc88 or ecc82
  241. Knight-kit KA-55
  242. Can I delay part of a B supply this way?
  243. Tube Preamp turn on circuit
  244. SE GM-70 for 700-800 euro?
  245. filter cap markings
  246. tube buffer noise cancellation
  247. PSUD 2
  248. Bypassing filter caps with Smaller caps
  249. balancing resister for series capacitor in a power supply
  250. Yaqin MC-100b- TJ Full Music 6sn7

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