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  1. Low mu Preamp Triodes as Power Output Tubes
  2. 300B Transformer temperature
  3. Standby Switch Problems
  4. Worth repairing?
  5. Measuring current distortion
  6. GM70 sockets?
  7. high AC mains problem
  8. 250 V PSU help
  9. EL34 UL Curves
  10. datasheet for ge 5star and rca command 5814a?
  11. PS choke voltage/current quetsion
  12. push pull power amp design question (a lot of actually :) )
  13. Knight Amplifier Repair Question
  14. Grant G100AS circuit diagram?
  15. Hashimoto A-105 - summary so far
  16. Related Audio Worlds largest
  17. Why do valves go microphonic?
  18. Allen Wright Superreg manual
  19. Need help on resistor values for 5687 aikido kit
  20. Pioneer SM83 PP amps
  21. Techtube valves/tubes
  22. Datasheet for Russian 6p3s-e
  23. Continually Blowing Fuses
  24. I am done with AES -- a short rant.
  25. CineMag CMMI-15/15B
  26. In market for a Capacitor meter - for a tube project!
  27. What amp(s) would you buy under $1500
  28. Etf 2008
  29. All FET Aikido
  30. what 12au7 have different tone ??vintage and modern
  31. Can 3.5W 2A3 amp drive proAc 1SC?
  32. British seven pin sockets
  33. Pentodes, triode mode and grid screen dissipation 101
  34. Yakov Aronov amps
  35. Suitable tube pre-amp for Phase Linear 400?
  36. Goldpoint value?
  37. TubelabSE 300B power transformer ?
  38. 316A socket
  39. Hashimoto A105 - some results (ECC99)
  40. Some uses for old transformers
  41. Power Supply Question
  42. PY82 as rectifier
  43. Jackson 637 Tube tester Info needed
  44. pro-ject tube box
  45. Some dumb Questions on Heater CCS supply
  46. Aikido loses power?
  47. Quicksilver 8417/12FQ7 mods
  48. Calculations for an AIKIDO
  49. Music Angel Empty shells
  50. Enclosure for tube amp/speaker/reverb unit
  51. Need help troubleshooting preamp trouble
  52. Compactrons on the brain!
  53. XSE vs. GSXE Edcors
  54. output transformer
  55. How to simulate OPT in LTspice?
  56. 311-b
  57. PSU Design help !!!
  58. BDT Preamp build
  59. Russian tubes / capacitors purchasing
  60. Bored with Leak ST20 - ideas?
  61. KT-88 Music Angel problems with sound level
  62. Fusion Hybrid 300B
  63. I'm new here..... :(
  64. DIY/Buy/Kit
  65. Ralph from Atma-sphere will be giving a talk 09/16
  66. Modified USB DAC board, DDDAC with triode buffer
  67. LS50/GU50 Both Grid Drive
  68. Aikido filament question
  69. 6l6 Se.
  70. Feedback requested on 7591 PP design
  71. Blackburn Mullard/Philips video
  72. DIY sheilded B+ cable
  73. Experimenters Tube Sockets
  74. Used freebies precipitate questions
  75. Mains toroid as IT with DC balance?
  76. Tubes for Viva Solista 845 SET amp
  77. SE transformer for PP duty?
  78. Warning: new SS relay question / No flame I
  79. Tube Haunts Thread?
  80. Problem with Maida regulator
  81. 2 stage SE IT coupled amps..
  82. BUF420M Current Sink
  83. Direct from the mains?
  84. PSU capacitors: 30uF film ok instead of 100uF electrolytic?
  85. Annealed silicon core opt`s
  86. Designing a "cheap" highish-power PP amp...
  87. Improvements for the Mikael Abdellah KT88???
  88. DC supply on driver tube hums..
  89. Sun Audio SV-2A3
  90. Mullard Blackburn Tube Factory Tour Video
  91. SE amp: Please suggest a better operating point
  92. Paralleling Outputs or Bi-amp
  93. triple triode common cathode - only want to use 2 triodes
  94. Luxman 3045 Mono Block Tube Amp
  95. Eye tube for balancing multi amp system
  96. 12ax7 preamp.
  97. External PSU for Quad 22 pre-amplifier
  98. Keep Blowing Fuses
  99. learning tube rectified psu
  100. 17JB6... guitar amp?
  101. Series of Diode on HT Plate
  102. Quad II power amps......power output transformers!!!
  103. Mullard (factory) making tubes again
  104. CFB and A2 operation
  105. DIY triode
  106. Interesting symmetrical amp from 1955 magazine
  107. 6N23P, 6S19P anybody knows?
  108. Worlds smallest HiFi valve amp
  109. A DIY Interruptus Moment
  110. Noisy EL84 amp needs new front end
  111. Loosening up magnetic "stiction"
  112. The Return Of Blackburn Mullards?
  113. Can I use different value cap?
  114. tubelab SimpleSe power transformer connection question
  115. need output transformer for Fisher
  116. help for E182CC linestage/driver
  117. User Beware: A Report On Jj Tubes
  118. Depletion mode mosfets for 2mA CCS ?
  119. New tube stash question
  120. Stepped attenuator recommendation...
  121. Pros and cons of Cascoded front ends
  122. EF86 as a volume pot, line pre 2008
  123. RCA voltage regulator
  124. Input voltage attenuation
  125. Valve Buffer amp
  126. 6y6ga
  127. Filmosound L-1 6V6 Volume pot issue
  128. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  129. Another 3f4 spice triode model: 5718 submini triode
  130. hp-8903B advice??
  131. need info on how to convert my bogen k10 for guitars use
  132. Differential Amplfiers - current sources under/over the triodes
  133. Impedance rate VS impedance stability
  134. Anyone running Mikael's SE KT88 in Pentode?
  135. what double triode is less microphonic ?
  136. Need advice on proper use of anode chokes.
  137. Grounding problem?
  138. Current regulation for filament of say a 300B
  139. diagram for OTP 6.6K valve KT88
  140. Dynaco Pas Transformer
  141. Regulated screen supply
  142. Shocked!!!
  143. set el84 tube amp
  144. tube preamp RIAA
  145. 4E27 as a substitution of 845
  146. LS 37 lite audio phono
  147. I want to build an amp!!!
  148. Multimeter test leads?
  149. Choosing proper g2 grid stoppers for SE UL..?
  150. audio note P1SE improvements
  151. Help for choke input regulated PSU
  152. 5687 perveance
  153. Where Can I Pick Up Neutral
  154. Hyperlinear line preamp
  155. What tube to use.
  156. Using mains transformer as output transformer
  157. AutoCAD of tube Packages?
  158. Has Anyone Tried This Before??
  159. More Tube Learning (for me) Cathode followers
  160. weird hum problem
  161. Simple technique for guitar amp channel switching?
  162. Weird oscillation
  163. Tube stash strategy and testing (long)
  164. Choke loaded LTP
  165. LM Ericsson 2C51 help!
  166. Antek TXs??Any use em???
  167. Speaker impedance questions (SE KT88)
  168. Spud-Assist: Totem-Pole Current-Mirror PP Hybrid
  169. my 6922 / E88CC preamp
  170. For the moderator
  171. 3 amps for HE speakers
  172. Pentode sounds great
  173. Shindo claret
  174. james 6123hs
  175. 6550 Amplifier
  176. ARC Ls 15 Schematic
  177. Super spud-amp?
  178. Basic Oscilloscope Usage Questions
  179. Grounded Cathode phase?
  180. Simple SE, how to wire CFB with outputs for different speaker impedances?
  181. PCB Board designer?
  182. Speaker for your low power tube amp?
  183. Tube collection Database.
  184. E288cc value?
  185. Hi End Tube Project
  186. parallel SE 2A3
  187. Want to build a tube/SS hybrid preamp for HT
  188. Do anyone has schematic for Counterpoint SA3000 ?
  189. Thermistor B+ or primary
  190. Measuring AC at Radio Frequencies
  191. The MingDa MC67-HA meets Frankenstein
  192. What's the biggest full wave damper diode?
  193. Maximising Tube Life
  194. Darling power supply calculations
  195. This is nice - Pix Ongen tube RIAA amp
  196. Tubelab SE 45... Super amp!?
  197. DAC - tube gain stage w/ AC heaters
  198. Microphonics?
  199. Insides of Tango Transformers
  200. Thoughts on horizontal sweep tubes?
  201. 2A3 Design Issues (Long)
  202. Design using EL42 output pentodes
  203. Blumlein's Garter Bias question
  204. Original ECL86 "Baby Huey" thread
  205. Too low heater voltage?
  206. Tube and digital?
  207. 807 monoblocks
  208. What to swap a 6AV6 for?
  209. Pot Noise Help
  210. cathode bias circuit question
  211. ECC40 driver stage for 2A3
  212. heater current and 6922 - 6n6p swap
  213. Tube Crystal Clock Oscillator
  214. Decware Zen Plate Model ZSP1
  215. Battery Power Preamp E188CC review please !
  216. 6sl7
  217. Tube sale at AES
  218. 5v3a
  219. 813 trioded Datasheet and curves
  220. Importance of resistor working voltage spec?
  221. TCJ My-Stock DB
  222. 845 Amp
  223. Ripple filtering help... strange slow rise and fall of voltage
  224. Plate and Filament Transformers
  225. Tentlabs Neg Bias Vs Machmat AFB
  226. Looking for 12AT7/ECC81 phonostage schematic
  227. 6AV5 PP amp Design Review
  228. 6sn7 Preamp power supply
  229. Please: tube kit for <$300?
  230. making a load line
  231. Telefunken Consoles: not just for tube and iron scavenging!
  232. Genalex Gold Lion KT77
  233. driving HD600
  234. Counterpoint SA-3000
  235. Phono stage for 2 7F7s (stereo) plus buffer?
  236. Help and your input on YAQIN MC10L EL34
  237. EL Cheapo Quad amplifier???
  238. Noob questions about a K-12/K-502 kit
  239. 3 quick transformer questions
  240. Push Pull Output tranies for SE amp?
  241. Tube Rectifier Capacitance?
  242. rca 189 b console amps need more info
  243. upgrade transformer?
  244. Parasitic oscillation? (picture)
  245. newbie question : driver/output relationship, input sensitivity
  246. Unknown tube logo
  247. Impedance, the 10x rule, losses & bandwidth
  248. el84/6bq5 PSE
  249. A very odd phase inverter- comments?
  250. Please check my work :)

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