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. DIY CAT SL1 preamp
  2. Phase inverter, your comments welcomed!
  3. Basic Bias Question for PP Amp
  4. Oddwatt 5751/6550
  5. Please help me to identify Telefunken PCC ...
  6. Modification of 300B SE Amplifier
  7. 300B Tube and Amp Questions
  8. ST70 "Imposter"
  9. cathode follower question
  10. marconi tubes....can someone idntify these
  11. DeathTrap400 : : A Pretty Damn Good 300B Amp
  12. SOS: First Build, Lots of Hum
  13. 1959 Silvertone Syntronic Can Capacitor question
  14. KR Audio Marconi R valve amp?
  15. Distortion
  16. Tung-Sol 6098/6AR6 Substitution
  17. Dropout in RTP3 phono stage
  18. Audio Research EC-3 modification
  19. 300b all-DHT SET
  20. My first tube project !
  21. Trouble with homebuilt amp
  22. Music angel el34b problem
  23. Elecrolytic capacitor reforming
  24. The end of tubes?
  25. Two stages EL34 power amplifier
  26. 7199 replacement in AMPEX 6973
  27. IT coupled tube-SS hybrid amp suggestion- needs development
  28. Original Cary CAD-300se upgrades?
  29. Convert Integrated Tube Preamp to an amplifier
  30. McCurdy AM405 Schematics
  31. Looking for Neumann N149 power supply schematic
  32. B&K model 747 tube tester for EL34
  33. Behringer DEQ2496 for testing amplifiers and preamps frequency response ???
  34. I need datasheet of 8753 tube, help me!
  35. New 6L6GC Project. DC -> LTP
  36. EL84 in UL
  37. 1953 revere amp conversion
  38. Manley transformer specifications
  39. Recommended 300B SE Amplifier Designs
  40. Found a new interstage coupling method (?)
  41. Amplifier Distortion (Northern Electric)
  42. when do filament supplies need to be floated
  43. gm70 filiment transformers
  44. Replacing 6922 Preamp Tube in ARC LS7
  45. Please educate me: Tube testing, the life test, and Grid Leakage
  46. 6AR6 6098 Triode PP Load Line
  47. music reference rm5-4 schematics
  48. S5 K-12G output trans
  49. Transformer center tap question
  50. EF86 + 4*EL84PSE
  51. solid state relays for plate load switching?
  52. Dont have a power transformer?
  53. Kora Equinoxe Triode or Blue Circle BC-21.1 preamp?
  54. Pre-Amp For my Tubelab Simple P-P
  55. Power Transformer Help
  56. Analog Metric 2A3 PP Kit
  57. Good, starter OTL kit
  58. Dual SE amplifier? - (not PSE) - Take two!
  59. Mysterious SE OTL headphone amp from China?!
  60. Inv. Futterman with gain stages between PI and O/P?
  61. PSU configurations for tube amp
  62. HP Model 712b Regulated Power supply
  63. Dynaco low Power Amp
  64. 300b power suply
  65. Very Strange Preamp Issue
  66. WTB: I am looking for a Freed 1400V or Chicago 1200V/1400V Potted Power Transformer
  67. tube transformer suppliers in Mercosur
  68. Please Help: 6CJ3 Damper Diode Tube as Rectifier Question
  69. time delay sophia electric
  70. Twisting the leads of filter choke
  71. This SPUD's 4 U
  72. I am Looking for tubes
  73. Thuan
  74. Nanjing 6V6GT ( 6P6P)
  75. Should I keep this old stuff?
  76. 300b
  77. ganged output transformers
  78. Holco H4P Resistors, Should I use them?
  79. 6BX8 curves, help !
  80. SANSUI AU-70 or 1000A???
  81. General Electric YTW-1 Tube Checker
  82. Ground or amp hum-which?
  83. need help to fix the "hiss" on my tube preamp
  84. Best SE interstage 1:1 for min. 15mA?
  85. Dual Single Ended Amplifier? - (not PSE)
  86. RIP Forum Member "Ivey"
  87. Balanced Buffer Needed with a Balanced Volume Control?
  88. valves to replace opamps in cd player
  89. Replacing capacitors on Audio Research D40 power amp.
  90. No sound and low B+?
  91. Replacing capacitors on Audio Research D40 power amp.
  92. 2 Channel Tube Amp and Sub Connection
  93. EZ125 Amp Project
  94. Yaqin MS-22b Phono Amp
  95. First post and a couple P.P. questions
  96. adding a preamp to tube power amp
  97. 6SN7 6N8S preamp suggestions
  98. 300b polarity
  99. Electrolytic capacitor vs extra triode stage
  100. WE JAN 274B Dating
  101. EICO 666 Tester Help
  102. Hickock 550X signal voltage
  103. First Headphone tube amp kit to build??
  104. Anyone owns a Dynavox VR-307 Amplifier ?
  105. NOS potted Chicago Transformer 1BC-150
  106. capacitor voltage for tube amp power supply
  107. 808 SE Design Help!
  108. Why can't I build my own ARC LS-5 or CJ PV-12?
  109. Post-mortem on a 80 year old 2A3 amp
  110. 6e5p gm70 with 6d22s?
  111. 6L6-6V6-EL34-KT88-6CA7-EL84
  112. Scheme for SE amp
  113. $16,000
  114. Hybrid power amp
  115. Diagnosis please
  116. On now! Jamerson's Ampeg
  117. BK 707 Tube Tester Mods
  118. monarch 614
  119. Separate Filament and B+ Switches
  120. Dynaco Low Power with 12AY7's
  121. PTP kits available?
  122. Which OP transformer and materials?
  123. Power of Tube Amp and Transistors Amp
  124. testing tubes
  125. current servo not voltage.
  126. Help Me, How to make Pre-amp using 12AU7 tube and Op-Amp Ic mix?
  127. 300b filament
  128. DHT SE auto bias circuit
  129. Anyone try swapping 6SN7 w/ 6F8G
  130. Eliminating Cathode Bypass Caps In SET Amplifier
  131. Nano vacuum tube
  132. Help High Line voltage
  133. Switchable Amp Output?
  134. PCB or hardwire?
  135. 27 line pre amplifier
  136. Mystery tubes on FB?
  137. amplifier discussion
  138. Mikael Abdellah KT88 SE with Cornet2
  139. 5879 to 12AX7 conversion
  140. CCDA SE output stage?
  141. Bravo V2 tube headphone amp - high pitched noise?
  142. Preamp Grounding Question
  143. SE on 300B
  144. musical paradise mp 301
  145. Newbie plan
  146. Capacitor Voltage rating Question
  147. Can anybody identify this amp?
  148. Old RCA radio; can anyone ID this?
  149. Class AB2 - Kink, how and why?
  150. 6SL7, 6J5, or 6SN7 unity gain buffer amp
  151. CCDA dissimilar triode preamp
  152. NOS NEGLECTED HIGH-END AUDIO TUBE
  153. GOSS C-core suppliers in UK/Europe
  154. Old radio -> tube amplifier
  155. Sowter 8650 in SE
  156. My Russian SET
  157. Raysonic vs. DIY tube amp?
  158. Which pins to use first?
  159. Bypass gain stage on K16LS amp
  160. Schematic help for a Pilot 505 amp please
  161. Question re: Distortion in triode gain stage
  162. Newbie needs help
  163. Marantz Model 9
  164. Is my power transformer bad?
  165. japanese 6v6 amp on youtube, anyone got the link?
  166. First attempt at tube amp.
  167. 6p3s,6N1P,6j1p
  168. 6bq5 p-p diagnosise
  169. MFA Lumi suddenly whistles (on bench)
  170. Pure tetrode and negative g2
  171. ECC85, EL84 tube amp please help.
  172. Pentode buffer.
  173. 5k:8 ohm vs. 10k:16 ohm output transformer. What is the difference?
  174. Help restoring old Maas-Rowe amp
  175. Early Sansui Valve Amp
  176. mismatched transformer impedance question.
  177. Second-hand or NOS tubes?
  178. Any suggestion for a 12AT7 / ECC81 SRPP powerstage ?
  179. Looking for High voltage double triode
  180. Will this ebay cover fit my Scott 272 integrated amp?
  181. My new find
  182. Thordarson Dual Tone Control
  183. samsung experiments with "tube sound"
  184. PP OPT design
  185. Heater voltage drops?
  186. WE448A data
  187. How come signal input capacitors are not on every amp?
  188. Any body can help to identify this pair of OPTs.
  189. tubelab SE component mounting
  190. Pre-amp for Tube Sound
  191. Audion tube amp capacitor questions
  192. Capacitor Substitution
  193. Hello, looking for advice on a tube project...
  194. Testing my Tube Tester
  195. Is this speaker a good choice for Tube amps
  196. Suggestions for upgrading my first tube amp!
  197. Why does the Miniwatt N3 have 4 connections to its output transformers?
  198. Anyone know if there is an octal
  199. Cathode Follower, where is the 3d H gone?
  200. Sylvania 45C14M progress.
  201. Collins R-390 Audio Deck
  202. 2 stage 2A3 SET - why does the 6n6p sim so well?
  203. Hi Everyone! Your thoughts on my Yaqin dilemma
  204. Audioromy in Shanghai ?
  205. volume Pot noise
  206. Full Music 300B solid plate sound fine ?
  207. Removing cathode-bypass capacitors, and compensation
  208. Q: UL PP Instability - Anode Grid2 Snubber
  209. The Shuguang SG-50 really support 650V in the plates ???
  210. Addinging windings to an Antek AS-... transformer
  211. Supertex dn2540 CCS Rset trimmer value
  212. help with amp ohms
  213. First Kit
  214. High-End Tube preamp with ECC88
  215. ALERT! WARNING! J. SOUND LAB 300b
  216. Gott 30u tube amp (biggs of ca)
  217. Tips needed for some testing my newly built tube amp
  218. Need help for designing C3g pentode driver for 6b4g se
  219. another circuit idea
  220. EL41 PP triode strapped
  221. Odd-ball PI circuit identification request, and headroom question
  222. b+ Delay Arrangement for Power Amp
  223. Stackin' Chokes
  224. Source of IXYS 10m45s and other CCS devices
  225. Help identifing a 12ax7a
  226. EICO HF-60, rebuild and test
  227. Hum in homebuilt amp
  228. 845 Heater Power supply problems
  229. Tubelab SE choke
  230. First Amp Build, (But not complete beginner to electronics)
  231. X10 V3 SERVICE MANUAL
  232. PP kt88 amp problem.
  233. How much power do I need?
  234. Hickok TV-7 D/U calibration
  235. 12 VAC for both AC heaters and DC B+ via voltage doubler?
  236. Adding CF to SRPP to lower output impedance?
  237. BCF build
  238. 12vac heater - dc elevated question -
  239. 6V6 VERIABLE TUBE REGULATED
  240. please help identify jennen tube amp.
  241. Settings for ECC808 tube on 539c tester
  242. KEG-EAR 6L6-KT88 PP AUDIO AMP
  243. Aikido LV
  244. RH-84 voltages
  245. RIAA Tube Preamp Build (Part 1)
  246. Hybrid amplifier with ECC88(PCC88) + LM3875
  247. Triode and Input Transformer
  248. RH-84
  249. DL22N
  250. Single Tube Amp

Content Relevant URLs by vBSEO 3.3.2