PDA

View Full Version : Tubes / Valves


Pages : [1] 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

  1. 866A, 3B25 LTSPICE models
  2. 6HB6 AS FINALS
  3. Leak OP Transformer Mod - Assistance please
  4. Leak OP Transformer Mod - Assistance please
  5. strange noise from tube line amp
  6. 6a6 tube as power output in headphone amp
  7. Eureka! Push/Pull vs Single Ended = Clarinet vs Saxophone!
  8. Mullard 6-7 stereo valve amp rebuild
  9. tube regulator for B+
  10. Yet another HV regulator
  11. Opinions on Clamping a ring-of-two bias-block in cathode of EL84
  12. Odd stabilized HV power EF86 + EL84
  13. NL710, 6011
  14. Somebody can identify this tube?
  15. Bullet proof driver circuit
  16. Need Grounding Advice for my System
  17. Use the chassis as the heatsink - Need safety advise
  18. Kofi's Tetra Sans
  19. Spice Simulation of NFB Amp with embedded PF
  20. Simplicity or complexity?
  21. 6N16B Aikido
  22. How to test a power supply
  23. Buying tubes in Bulgaria
  24. Input Trafo MFG reviews needed
  25. A cautinary tale.
  26. HELP! Hybrid Rectifier PSU with 2 Diodes und 2 TV-Dampers 6CG3
  27. ecc99-2a3:opinion
  28. AutoCAD tube/valve blocks
  29. Step By Step Journal Of My TubeLab SSE build
  30. Triode troubles
  31. Safe PSU capacitor values for old Dyna amp?
  32. KT88, 6550 SE Triode Strapped Performance.
  33. Dynaco A431 OPTs
  34. Gingertube's 'bias-block' EL84 Heatsunk MJE340?
  35. SST-70 w/KT-150's mono's build
  36. Error Correction?
  37. Tube amp issue
  38. 4x6N3 preamp board from ebay
  39. time delayed LED for heater
  40. Aikido PSU decisions
  41. coupling caps for RCA rebuild
  42. Recommended coax
  43. Adding solid state bass to valves
  44. Incompatibility between Aikido Pre and Tubelab SimpleSE
  45. What power amp design would suit Esoteric MG-20?
  46. PL36 (triode) SE
  47. Any thoughts on this?
  48. BAT VK 55 paralleled
  49. Looking for a good phono preamp schematic.
  50. Nice diy from Poland
  51. Unballancer humming in one channel
  52. 6S19P tubes instead of 7233 tubes.?
  53. Looking for good stereo amp <$350 - help
  54. Question on EL84 SE triode with CCS at cathode
  55. Convert choke loaded 12b4 to CCS and retain od3's
  56. What can I make with these?
  57. 12AT7 LTP Calling Eli Duttman
  58. Book Help, Please?
  59. Amplifier class A EL34
  60. ps audio hybrid tube buffer
  61. FS: Copper chassis, OPT and Power Xfmrs
  62. Negative Feedback Amplifier with embedded Positive Feedback Booster
  63. Looking for a single ended amp.
  64. EF39 as 300B driver...
  65. How is Electro Harmonix 6922 sonicly compared to NOS?
  66. Tube amp driving a Subwoofer
  67. Leak Stereo 20 Power Supply Choke?
  68. help me read circuit: broski 300b shunt reg
  69. CCS current regulators for OP valves
  70. 1930's push pull field coil amplifier
  71. Loudness and power and volts
  72. Opinions; big mess or have potential?
  73. Premier 90 Reverb Buzzzzz
  74. Star grounding
  75. High NFB OTL headphone amp
  76. Any technical advantages of almost floating grounds?
  77. Twisted power cables
  78. Output transformer
  79. 12AU7 Tube Line Pre-amp on Ebay
  80. Would you run these at say 1200vdc?
  81. MOSFET equivalent
  82. 6BY5 GA full wave rectifier replacement
  83. ID those parts - trafo
  84. Sweeps in class A
  85. Preamp valve rectified power supply
  86. Grommes Precision S-35 - Worth playing with?
  87. 6922 or E88CC in the Rode NTK Mic
  88. What the hell caused this?
  89. 6SN7 Aikido White Follower - Spice simulation
  90. Need to build a moving coil stage
  91. You guys and gals recognize any of this equipment?
  92. Help with first amp design, SET no feedback hp amp
  93. LTSPICE problems with 10Y model
  94. 5876 tube
  95. P2P wiring and cable types
  96. Claus Byrith 4-30: missing valve in the PCB?
  97. KR T1610 PP amp building
  98. Pls Help me Identify these Tubes!
  99. measuring output transformer primary impedance
  100. Unusual output transformer Triad
  101. Input transformer differences
  102. Faint buzz through power stage (845)
  103. Pros and Cons of 3rd Stage in SE (6AV5/2A3 drive requirements)
  104. Star grounding - wooden box
  105. R601P Tube Radio
  106. analog metric el34 se amp
  107. EL34 PP amplifier suggestions
  108. 6AU6 Triode Mode
  109. Another GM70
  110. newbie amp question.
  111. Push-Pull Plate Choke from Edcor?
  112. Finalizing 300B Amps==Please Comment
  113. Help!!!
  114. Controlling gain in VA stage
  115. 833 Push Pull Design
  116. restoring mullard valve paint
  117. Mentmore TVA1
  118. DIY in Korea?
  119. Case suggestions for Pye Black Box?
  120. help trouble shooting a problem
  121. Liteaudio 1s37 Phono preamp
  122. All DHT tube amp dream
  123. Suggestion for valve amp kit
  124. Alps black beauty inductive?
  125. Why are directly heated rectifiers still popular?
  126. Headphone amp with pre out
  127. wish to buy 10's or other tungsten DHT's
  128. Audio Innovations Series 300 II -red plate
  129. 811 heater power supply...
  130. Bijou resistors specs
  131. Bijou schematics question (PINs)
  132. Looking for a proficient tube tech in New England.
  133. hybrid amplifier using EF86
  134. Looking in San Diego....
  135. Ground of tube headphone amp
  136. Input Transformer Question
  137. Low imp tube headphone diy amp
  138. Cathode Follower as DAC Output Stage?
  139. Monoblock Gu-50 help.
  140. Aikido CF question
  141. Tube Power Amp Kit Recommendations
  142. EL34,KT66,6L6GC,KT77:who works better with high impedance OT load in SE Triode Mode?
  143. ECC40 Voltage Question
  144. Question re DC coupling vs RC coupling (AC)
  145. Measuring ripple in filament supply (coleman reg)
  146. What about use largest possible capacitor as interstage decoupling ( 1 or 2uf)
  147. replace 6N3 tube preamp with mullard E555L
  148. Preamp to Poweramp tube proximity/spacing?
  149. List of Tube Noise Measurements - please nominate lowest noise tubes
  150. Just for interest
  151. Time to build the big one.
  152. Opinion? Would the input/driver from a HK-5 be good to replace original Mk3 ft. end??
  153. Has anyone built this kit?
  154. 22 AWG PTFE Wire jacket
  155. mu-follower with output transformer?
  156. ECC81 double triode tubes flashed brightly when switched on.
  157. pre amp with tone controll
  158. Making own hifi tube amp from scratch!!
  159. Pentode CCS as a load for long tailed pair?
  160. E88CC & 6N23P plate voltage range?
  161. First pre phono design [newbie]
  162. Struggling with LTspice - How to use .inc to get a tube to appear
  163. Eico St 40
  164. ECC88 Input/driverstage for F4 amp
  165. Tube headphone amp
  166. Rike Audio S-cap
  167. Acquired free brand new Jolida 302a
  168. Triode vs Transistor
  169. Help with restoration of Audio Research equipment
  170. Grommes 103gt tuner
  171. Frank’s 6SN7 pre & regulated supply
  172. Sleeping giant
  173. hum by mounting powertransformer and tubes on same chassis
  174. Rectifier tube overheating
  175. "World's Best Technical Master Craftsmen"
  176. OPT for 2A3
  177. getting rid of pre amp in a tube amp
  178. A question on OPT and no loads.
  179. Auto-Bias vs Manual bias vs EFB
  180. Russian receiving tubes and foreign equivalents
  181. B+ delay timer module
  182. Testing DIY triodes
  183. Adding a dummy load to prevent amp from being damaged by having no load?
  184. 30 watt class A chopper controlled bias with 6 EL84
  185. THD
  186. Input resistor (What are purposes?)
  187. Posted new 300B push-pull amp design
  188. Help me source a pair of OPT for Knight KG-240 tube amp
  189. Help Pick Transformers for EICO HF-87
  190. PreAmp
  191. Original price of the Conrad Johnson PV-5
  192. balance pots in Williamson driver stage
  193. Another Question on Tektronix Transformers
  194. Philco K1629 Upgrade Options
  195. My return to tubes, via headphones - what circuit would you recommend?
  196. High Quality EL84 UL SE Amplifier
  197. regulated supply to CCS plate load
  198. Twin Audio Sinfonia Preamp
  199. ecll800 schematic confusion
  200. 6L6 recommendations
  201. tube 100th
  202. Luxman OY15-5k OPT?
  203. Has anyone had experience with Russian 5C8S and 5C9S?
  204. New Here looking for info on rare SVIKO russian made 6KG6 monoblocks
  205. DC-DC converters
  206. EL 84 pp amp - simple regulated circuit sought
  207. Any tube amp to drive B&W 802D?
  208. New to valve amplifiers
  209. SE 6GW8 output transformer with 5 wires.
  210. Mr.Curwen's single ended adventures
  211. Tube magic eye with em84-sensitivity?!
  212. Tube test
  213. Brimar 6V6 USSR
  214. Construction Guides
  215. World Design KT88 Kit
  216. Opinions appreciated: Lafayette LA 224b vs. McIntosh 225
  217. Clone X10D problems distortion / saturation ... help!
  218. 12DW7 or 12AU7+12AX7 if stereo?
  219. First preamp and gain control
  220. Tube life..
  221. Berman 76 preamplifier, I need some advice please
  222. How to light GM70 tube as decorative?
  223. Old Tube amp missing tubes. HELP
  224. Going to Berlin, looking for electronics diy shops
  225. 6SJ7 Vs 6Ж8 - Can the russian tube be considered an equivalent tube ?
  226. 6L6G Tung-Sol reissue: sweet sound and delicious night sight, but...
  227. Help with Eico ST70
  228. Class-D and Tube buffer/preamp off same 12V SLA?
  229. Hard time to find High Voltage medium power linear BJT
  230. Gu50 or 1624 PP amp first trials
  231. cathode follower driver A2
  232. High Pass Filter for OTL headphone Amp
  233. Bewitch 6550 Balance Issue
  234. ground hum issues in an old peak st-100
  235. Need an APPJ PA0901A Mini Amp Output Transformer.
  236. VTL Tiny Triode Schematics?
  237. A question of dynamics: Amplifier design?
  238. Rechargeable battery for cathode bias: open discussion
  239. High quality tube socket for 4P1L tube ?
  240. VTL Schematic needed
  241. Diode rating for filament voltage doubler
  242. SE vs PP for SET amps
  243. Use "mu output" from depletion mode MOSFET load?
  244. GM70 SE mov rectifiers
  245. First Preamp build
  246. Fisher KX-200 driving a pair of ESL from the plates
  247. Disadvantages of unbalanced tube
  248. The anatomy of a vacuum toob
  249. Valve Amplification Company CLA1 mkii help
  250. leak stereo 20 channel imbalance

Content Relevant URLs by vBSEO 3.3.2