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  1. DIY sheilded B+ cable
  2. Experimenters Tube Sockets
  3. Used freebies precipitate questions
  4. Mains toroid as IT with DC balance?
  5. Tubes for Viva Solista 845 SET amp
  6. SE transformer for PP duty?
  7. Warning: new SS relay question / No flame I
  8. Tube Haunts Thread?
  9. Problem with Maida regulator
  10. 2 stage SE IT coupled amps..
  11. BUF420M Current Sink
  12. Direct from the mains?
  13. PSU capacitors: 30uF film ok instead of 100uF electrolytic?
  14. Annealed silicon core opt`s
  15. Designing a "cheap" highish-power PP amp...
  16. Improvements for the Mikael Abdellah KT88???
  17. DC supply on driver tube hums..
  18. Sun Audio SV-2A3
  19. Mullard Blackburn Tube Factory Tour Video
  20. SE amp: Please suggest a better operating point
  21. Paralleling Outputs or Bi-amp
  22. triple triode common cathode - only want to use 2 triodes
  23. Luxman 3045 Mono Block Tube Amp
  24. Eye tube for balancing multi amp system
  25. 12ax7 preamp.
  26. External PSU for Quad 22 pre-amplifier
  27. Keep Blowing Fuses
  28. learning tube rectified psu
  29. 17JB6... guitar amp?
  30. Series of Diode on HT Plate
  31. Quad II power amps......power output transformers!!!
  32. Mullard (factory) making tubes again
  33. CFB and A2 operation
  34. DIY triode
  35. Interesting symmetrical amp from 1955 magazine
  36. 6N23P, 6S19P anybody knows?
  37. Worlds smallest HiFi valve amp
  38. A DIY Interruptus Moment
  39. Noisy EL84 amp needs new front end
  40. Loosening up magnetic "stiction"
  41. The Return Of Blackburn Mullards?
  42. Can I use different value cap?
  43. tubelab SimpleSe power transformer connection question
  44. need output transformer for Fisher
  45. help for E182CC linestage/driver
  46. User Beware: A Report On Jj Tubes
  47. Depletion mode mosfets for 2mA CCS ?
  48. New tube stash question
  49. Stepped attenuator recommendation...
  50. Pros and cons of Cascoded front ends
  51. EF86 as a volume pot, line pre 2008
  52. RCA voltage regulator
  53. Input voltage attenuation
  54. Valve Buffer amp
  55. 6y6ga
  56. Filmosound L-1 6V6 Volume pot issue
  57. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  58. Another 3f4 spice triode model: 5718 submini triode
  59. hp-8903B advice??
  60. need info on how to convert my bogen k10 for guitars use
  61. Differential Amplfiers - current sources under/over the triodes
  62. Impedance rate VS impedance stability
  63. Anyone running Mikael's SE KT88 in Pentode?
  64. what double triode is less microphonic ?
  65. Need advice on proper use of anode chokes.
  66. Grounding problem?
  67. Current regulation for filament of say a 300B
  68. diagram for OTP 6.6K valve KT88
  69. Dynaco Pas Transformer
  70. Regulated screen supply
  71. Shocked!!!
  72. set el84 tube amp
  73. tube preamp RIAA
  74. 4E27 as a substitution of 845
  75. LS 37 lite audio phono
  76. I want to build an amp!!!
  77. Multimeter test leads?
  78. Choosing proper g2 grid stoppers for SE UL..?
  79. audio note P1SE improvements
  80. Help for choke input regulated PSU
  81. 5687 perveance
  82. Where Can I Pick Up Neutral
  83. Hyperlinear line preamp
  84. What tube to use.
  85. Using mains transformer as output transformer
  86. AutoCAD of tube Packages?
  87. Has Anyone Tried This Before??
  88. More Tube Learning (for me) Cathode followers
  89. weird hum problem
  90. Simple technique for guitar amp channel switching?
  91. Weird oscillation
  92. Tube stash strategy and testing (long)
  93. Choke loaded LTP
  94. LM Ericsson 2C51 help!
  95. Antek TXs??Any use em???
  96. Speaker impedance questions (SE KT88)
  97. Spud-Assist: Totem-Pole Current-Mirror PP Hybrid
  98. my 6922 / E88CC preamp
  99. For the moderator
  100. 3 amps for HE speakers
  101. Pentode sounds great
  102. Shindo claret
  103. james 6123hs
  104. 6550 Amplifier
  105. ARC Ls 15 Schematic
  106. Super spud-amp?
  107. Basic Oscilloscope Usage Questions
  108. Grounded Cathode phase?
  109. Simple SE, how to wire CFB with outputs for different speaker impedances?
  110. PCB Board designer?
  111. Speaker for your low power tube amp?
  112. Tube collection Database.
  113. E288cc value?
  114. Hi End Tube Project
  115. parallel SE 2A3
  116. Want to build a tube/SS hybrid preamp for HT
  117. Do anyone has schematic for Counterpoint SA3000 ?
  118. Thermistor B+ or primary
  119. Measuring AC at Radio Frequencies
  120. The MingDa MC67-HA meets Frankenstein
  121. What's the biggest full wave damper diode?
  122. Maximising Tube Life
  123. Darling power supply calculations
  124. This is nice - Pix Ongen tube RIAA amp
  125. Tubelab SE 45... Super amp!?
  126. DAC - tube gain stage w/ AC heaters
  127. Microphonics?
  128. Insides of Tango Transformers
  129. Thoughts on horizontal sweep tubes?
  130. 2A3 Design Issues (Long)
  131. Design using EL42 output pentodes
  132. Blumlein's Garter Bias question
  133. Original ECL86 "Baby Huey" thread
  134. Too low heater voltage?
  135. Tube and digital?
  136. 807 monoblocks
  137. What to swap a 6AV6 for?
  138. Pot Noise Help
  139. cathode bias circuit question
  140. ECC40 driver stage for 2A3
  141. heater current and 6922 - 6n6p swap
  142. Tube Crystal Clock Oscillator
  143. Decware Zen Plate Model ZSP1
  144. Battery Power Preamp E188CC review please !
  145. 6sl7
  146. Tube sale at AES
  147. 5v3a
  148. 813 trioded Datasheet and curves
  149. Importance of resistor working voltage spec?
  150. TCJ My-Stock DB
  151. 845 Amp
  152. Ripple filtering help... strange slow rise and fall of voltage
  153. Plate and Filament Transformers
  154. Tentlabs Neg Bias Vs Machmat AFB
  155. Looking for 12AT7/ECC81 phonostage schematic
  156. 6AV5 PP amp Design Review
  157. 6sn7 Preamp power supply
  158. Please: tube kit for <$300?
  159. making a load line
  160. Telefunken Consoles: not just for tube and iron scavenging!
  161. Genalex Gold Lion KT77
  162. driving HD600
  163. Counterpoint SA-3000
  164. Phono stage for 2 7F7s (stereo) plus buffer?
  165. Help and your input on YAQIN MC10L EL34
  166. EL Cheapo Quad amplifier???
  167. Noob questions about a K-12/K-502 kit
  168. 3 quick transformer questions
  169. Push Pull Output tranies for SE amp?
  170. Tube Rectifier Capacitance?
  171. rca 189 b console amps need more info
  172. upgrade transformer?
  173. Parasitic oscillation? (picture)
  174. newbie question : driver/output relationship, input sensitivity
  175. Unknown tube logo
  176. Impedance, the 10x rule, losses & bandwidth
  177. el84/6bq5 PSE
  178. A very odd phase inverter- comments?
  179. Please check my work :)
  180. NOS purchase, should I be concerned?
  181. Strange splitter in the Audio Research D4
  182. 6ak5/5654 plate resistance
  183. Further Troubleshooting Simple SE
  184. What is the purpose of the g2 bypass cap?
  185. questionable 2a3 schematic
  186. overdrive circuit for hammond organs(need help)
  187. A singular experiment with a unheated tube.
  188. Limited bass response in one channel
  189. Show me your fave phonostage circuits.
  190. tube heater voltage, how much is too much?
  191. Para feed choke
  192. Dynaco ST35 power?
  193. Tips/comments for upcoming 300B build
  194. page Eli Duttman's Simple p-p with 5965 MQ EXO-173 and 6AQ5
  195. DHT cathode follower idea
  196. GK71 Output Transformer
  197. Schematics for A.I. Mod 2D
  198. Determing Battery Voltage for cathode bias
  199. OT for audio but still tube
  200. Getting transfer characteristics
  201. Pentodes and Choke Loading
  202. Stepped airgap choke ?
  203. Noob question
  204. SE 300B Integrated Amp: Help choose circuit design
  205. SunAudio 2A3 to 300B
  206. Filament Snubber Cap Explodes! What happened?
  207. Alot of 12AX7's about
  208. DIY tube microphone preamp
  209. Tube tester and PSUD II questions
  210. Wurlitzer/Fisher Amp Musings
  211. please check my work
  212. How to get cathode bias info from grid bias info?
  213. SE 300B Integrated Amp: Transformers
  214. Positive feedback, improperly drawn screen, or WTF?
  215. GE Console RC 7100 A - need some help!
  216. Output tube for 600V B+, 5800 ohm primary PP, tertiary 25% UL taps?
  217. Still tring to find a couple 100uf motor runs
  218. small push-pull amp to preamp
  219. Electraprint EL84 PP with PSA-2N
  220. OpAmp Swap?
  221. Bogen MX-60A- output transformer bandwidth?
  222. 6AS7 Parallel Feed Amp
  223. PSpice model of output transformer
  224. simple guitar push pull amp
  225. Siemens capacitor
  226. Super 6BG6 vs. 6550
  227. 5687 line stage
  228. Audio Standards
  229. 4 x used 5867A (TB3/750) triodes
  230. 12au7 who has the best ultra low noise ???
  231. Questions about tweaking the Miniblok SET...
  232. The core -sonic reasons
  233. Removing pot from valve pre amp
  234. Power transformer question
  235. Tube construction materials
  236. LTP second grid
  237. How to figure out the bias point of fisher X-100A
  238. Schematic help! (Bell)
  239. Audio Note Soro SE SCHEMATICS
  240. 807 Tube Triode Connected
  241. Would you pls help.
  242. came across this nice 200W tube amp schematic
  243. Anyone seen this amp topology before?
  244. Max. grid resistance
  245. Yaqin mc10l &quot;popping&quot;
  246. Audio Electronics Supply
  247. Alamo Fury 2566
  248. My friends in the USA - tube stores in LA
  249. Can this marraige work?
  250. RJM with 12AY7

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