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

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

Content Relevant URLs by vBSEO 3.3.2