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  1. I need a little more advice on a Glassware Janus shunt regularor
  2. Pentode noise
  3. Dynaco ST-35 Circuits
  4. BIG Transformer Covers - Where to Find?
  5. Amplification breaks up after some time
  6. 6A5G schematic; changes from the 6Y6G tube
  7. ECC83 differential preamp optimisation
  8. 6Y6G SE SCHEMATIC NEEDING HELP!
  9. Need help identifying this tube...
  10. AMI DD project. Someone did some mods before me and I don't know whats what.
  11. (v?)Tailor PA-500 Tube Amp
  12. Transformer arrangement?
  13. Don't be stupid, you can't possibly do that with output transformers?
  14. Maximum Plate/Screen Voltage 6550 in UL
  15. Paper insulation for output transformers?
  16. Best PP OPT 30-100W range
  17. Tripath TA2020 + 6N3 Tube buffer
  18. El34 as triode
  19. tube preamp vol ctrl -- before or after?
  20. matisse preamp -review
  21. Ribbon Microphone Preamp
  22. Looking for tubes 6CL8 pentode Triode with lower output ratings
  23. Reducing Signal Level Without Affecting Tone
  24. VTVM/VOM???
  25. Micro amp - all-tube, direct heated, portable and IT FITS
  26. Wiring a 6AS7G to be Push Pull within its own envelope
  27. Wima MKP
  28. Will this circuit work ?
  29. new amp build
  30. MKP DC-LINK vs electrolytic power supply 4 tube amp
  31. Looking for ECC81
  32. Unison Research S6 (old version) auto or fixed bias?
  33. Troubleshooting a restored Edison 12 valve amplifier
  34. Counterpoint SA-220
  35. LTSpice models needed
  36. Magnavox 6V6 amp upgrade
  37. breadboard for tubes
  38. Looking for ideas... 50W OPTs
  39. SE Power Supply PCB
  40. Speakers for the 16LS Stereo Tube Amplifier
  41. will E80CF fit into yaqin 100b
  42. RH84 Rev2 Build w/Premium parts
  43. Single ended KT88 / 6SN7 not enough power
  44. Problem with push-pull KT88
  45. opinions please!
  46. Tube testing 101?
  47. Top aluminum plate from ProtoPanel.com
  48. 6GK5/300B
  49. Screen driven sweep tubes - the return of the evil kink?
  50. Parafeed 45 amps
  51. Has anyone tried the 6p1p EV?
  52. ECC88 mu-follower
  53. Reducing gain of a WE91 type amp
  54. 6sn7 mu-follower
  55. AES Preamp mods
  56. Oh! Darling
  57. Testing 3B22 on Hickok 752a
  58. Has anyone ever used the 6C41C in PP?
  59. RH 6V6
  60. Unholtz-Dickie amp, 4-1000's
  61. Somewhat Newbie..
  62. grounding RCA inputs
  63. ESS9018 I/V
  64. Catode follower with 6N7S (6n7GT)
  65. Recommended RIAA Values for this Circuit
  66. PC board design for PSE amp
  67. Audio Research SP-11 HV Regulator
  68. heathkit SA2
  69. russian 1578 tube production years
  70. partial list of tubes I have
  71. Bench Power Supply Questions ?
  72. Identify this tube?
  73. your input - bulb / led / neon selection for short tester
  74. Potted choke orientation/amp layout
  75. Tamura F-2012
  76. Joining output windings
  77. B&K 650 tube tester
  78. 5687 LTSpice model needed
  79. Can you identify this transformer? 70V line matching?
  80. I had to post this..the 211 in all its glory!
  81. Help with preamp/driver/output setup
  82. Accident - Shorted Cathode to grid!!
  83. Correct B+ for EL84 UL PP
  84. RH807 output transformer....what did you use?
  85. Headphone tube amp with balanced output?
  86. Tube buffer with 6n1p-EV
  87. First little SE
  88. ID Nice Unknown Tube
  89. Bell and Howell Model-601
  90. what should my mulit reader be on to bias yaqin 100b
  91. Fixing an old Tandberg Huldra 6 Radio
  92. 30W sweep tube amp
  93. Atmosphère S-40 with KT88, does someone know about this amp?
  94. What happens when Output transformer max voltage (slightly) exceeded?
  95. what type is the best?
  96. Kiwame carbon resistors
  97. Rocker Switch Wiring
  98. RH6550
  99. Diodes for Marantz 8B
  100. Diodes for Marantz 8B
  101. Telefunken 2430 Opus Resistor Burnout
  102. yaqin 100b with 2 different kt88 valves 2 are Genelex Gold Lion and 2 are Svetlena wi
  103. Conrad Johnson MV40 copy and Fisher OP's
  104. Are EF86 Tubes inherently microphonic?
  105. Counterpoint SA-1000 Hum in left channel Pinging Anatech!
  106. Need a rectifier tube...
  107. Looking for Harman Kardon Allegro A-10 Schematic or PhotoFact.
  108. How much spl can a triode take?
  109. Octal CCDA kit - help needed!
  110. Mod input of 6AU6/6AQ5 amp for iPod
  111. Put a tube on your PC just for fun..
  112. ST35 Cathode Feedback
  113. Series Shunt tube regulator
  114. Help ID this tube ^&$**@# lettering!
  115. Adding a db VU meter to an existing tube mic pre
  116. Quad 22 interstage cap?
  117. First test of my AX84 HI-octane
  118. 4P1L triode PP (40W!!?)
  119. KT88 shootout vintage vs new vs 90
  120. Help needed to identify this british made Amp
  121. PSU II Question
  122. Quality tube buffer with ECC83
  123. K12g Amp Question
  124. Stark 9-66 tube tester - repair help
  125. output transfo problem
  126. Pair of Fisher CA-40 Oddballs
  127. Model 601 tube amp.
  128. Model 601 Tube amp
  129. First power amp build. Is this normal??
  130. Compactronized 6146
  131. Preamp and inverter on B7G base tubes circuit.
  132. Advice and Suggestions on Amp designs
  133. Help who tube buffer x10-d
  134. EL803S-6CW5 / EL86 amp design check (schematic attached)
  135. amp buzz in one channel on inrush / power on
  136. SE 8-10W monoblock build help
  137. GlassWare Tube CAD
  138. SMD Parts and the DIYer
  139. 6CW5 / EL86 operating point
  140. RH84 power output
  141. 6n6p-ir
  142. Transformer bubbling
  143. Crackling noise.... pls help on Pre-amp
  144. RH84 amp. Plate is 300V. What voltage...
  145. Amplificator Class A 2 X EL504
  146. Help in testing 12ax7 and 7869 tubes
  147. Micro-Cap Tubes Parameters question
  148. Cathode Bypass Capacitor
  149. NOOB ALERT! sooo omany questions.....
  150. IS THIS A REAL E810F ???
  151. Chassis design question / cooling of small signal valves
  152. 5 leads pp output transformer
  153. Vote and Comment: SRPP vs. Aikido vs. Grounded Grid
  154. NEED ADVICE ON THIS SCHEMATIC AND WILL IT WOFK
  155. Help Identifying a Console Pull Amplifier
  156. sunaudio 2A3 circuit...is it good for newbie?
  157. KT120: When does it starts to sing ?
  158. Simple Time Delay (no more excuses for not having one)
  159. Cary SLP-05
  160. 6SN7 Grounded Grid
  161. input selector switch replacement help
  162. help needed with transformer wiring
  163. Tube Schematic Drawig Packages
  164. 12AU7 - 5V4G easy amplifier
  165. Glassware CCA 9-pin PDF
  166. Replacement for the tube 6922 (ECC88)?
  167. Which probes for my first scope?
  168. PP CATHODE BIAS WITH "CCS"
  169. current output tube amplifier
  170. Tube amp for a small room (newbie-like)
  171. What is this old thing from1929?
  172. Arduino cathode current HT etc
  173. Bizzare Output Transformer Connectivity...
  174. OPT to KT88?
  175. Help needed on identifing tube
  176. Amplifier circuit from tube radio
  177. Amplifier circuit from tube radio
  178. Using Valves Library in EAGLE CAD
  179. Biggest noval power pentode?
  180. Akita 12V preamp thoughts
  181. Help, what is this (Marconi 6204) ?
  182. Anyone try DHT 33 or 1Q5 Pentodes wired as Triode?
  183. Would this be a good buy?
  184. Looking for a complete DIY Tube amp
  185. Schematic by TS LIM Pre-amp
  186. Fisher Model 100 'AZ' Mono Amp Rebuild w/ Oscillations
  187. Measuring inductance
  188. Leak stereo 20
  189. Gain and gm of a QQE03/20 anyone ??
  190. Power supply options for tube amplifiers.
  191. CCS question mA
  192. Help wanted with testing and finetuning.
  193. YAQIN VK2100 pre amp
  194. Identify record player and valve
  195. AC Line Filter
  196. blue flash inside 5Y3GT
  197. Heater-Cathode Leakage
  198. Old Tube Kit
  199. Point to Point SET KT88/6550 Build
  200. D3a - MOSFET HYBRID CIRCLOTRON
  201. Aikido CCDA
  202. output impedance
  203. Bizzaro fix for hum problem needs explanation! Pretty Please
  204. Bizzaro fix for hum problem needs explanation! Pretty Please
  205. Questions regarding first build - K-502
  206. Good tube tech in Brooklyn NYC?
  207. Looking for LTspice tube models
  208. Audio Research SP15 : faulty phono stage
  209. Spark 810 looking for the diagram
  210. HP 8903B Question ?
  211. 1955 Hammond Organ Tube Amp
  212. Suggestions Please
  213. Croft Series 4 PL519 regulator
  214. Rectifier ID
  215. Adding headphone output to Darling amp
  216. CLC vs CLCLC Filter Power Supply
  217. Where to get Vacuum Tube Valley magazine?
  218. Magnavox 8802 HELP!!!
  219. Vaa for KT120
  220. Tubes in a Home Theater?
  221. Yaqin mc 10l tube risers?
  222. Wiring an LED strip into an amp?
  223. Need a bit more power :)
  224. yaqin 100b kt88-98 bulb blown and smoking coming from the amp
  225. Amp. 2x5W RV12 P2000driver RL12 P10 final
  226. Layout challange: Dual Maggie AMP148 based.
  227. Replacement PT question
  228. Real Telefunken E88CC?
  229. Any audio differences for EL-84 P-P OPT?
  230. Need help identifying this amplifier.
  231. Can anyone identify this valve / tube?
  232. Pentode-like Triodes
  233. Telefunken EL156 SE experience
  234. Help with a Tubelab SE Power Supply Transformer
  235. 33:1 opt for 5:1 use?
  236. Siemens B30C600 selenium bridge rectifier
  237. ECC81 mu-follower problem
  238. Audio Note M7 line stage preaamp!
  239. Should I upgrade considering.....
  240. Using Wards SE EL84 Transformers for Decware Zenkit1
  241. Parts Box 300b
  242. TO-9105-1 Triodeelectronics output transformer
  243. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  244. What is your comment about akido linestage?
  245. Driving an EL34 amp without driver stage ?
  246. Mystery Telefunken T9 amp
  247. Improving preamp's bass response.
  248. EZ150
  249. Need help identifying baldwin tube amp
  250. 45 amp with 6N7

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