| Tubes - Showing threads 6801 to 7000 of 11693 available |
▫ updated pics of tube project ▫ 10-20-2005 02:54 AM - 6 replies
▫ help 12FV7 datasheet ▫ 10-19-2005 05:26 PM - 11 replies
▫ Why does my oversized preamp trafo gets much too hot?!?!? ▫ 10-19-2005 02:14 PM - 22 replies
▫ 6sn7 pre ▫ 10-19-2005 01:35 PM - 5 replies
▫ 12AY7/6SN7 preamp PSU check ▫ 10-19-2005 11:46 AM - 100 replies
▫ CT design trans application ▫ 10-18-2005 08:31 PM - 1 reply
▫ Shindo schematics? ▫ 10-18-2005 07:33 PM - 28 replies
▫ Octal Hagerman Cornet Experiences ▫ 10-18-2005 03:20 AM - 4 replies
▫ My first (guitar) amplifier ▫ 10-18-2005 01:01 AM - 11 replies
▫ Zenith AM/FM C835 tube Radio schematic ▫ 10-17-2005 08:31 PM - 2 replies
▫ Oh man, my telefunken stoops... ▫ 10-17-2005 08:11 PM - 14 replies
▫ 42 single ended ▫ 10-17-2005 05:44 PM - 38 replies
▫ EL34 Feedback circuit ▫ 10-17-2005 03:40 PM - 3 replies
▫ Spice model for EL86/6CW5 ▫ 10-17-2005 02:49 PM - 0 replies
▫ Ditching some High Voltage ▫ 10-17-2005 06:27 AM - 10 replies
▫ Newbie want to build simple tube preamp&psu!need help! ▫ 10-17-2005 05:50 AM - 55 replies
▫ Phono Pre-Design Input ▫ 10-16-2005 08:41 PM - 22 replies
▫ TS Audio 211-based monoblocks ▫ 10-16-2005 08:33 AM - 11 replies
▫ HV Direct Drive tube amp. ▫ 10-16-2005 03:34 AM - 26 replies
▫ A question about Cathodyne/split load/concertina PI's ▫ 10-15-2005 08:01 PM - 35 replies
▫ Kofi Annan in: "Hummin' Trafo Blues" ▫ 10-15-2005 07:23 PM - 10 replies
▫ Rattling Tube ▫ 10-15-2005 06:30 PM - 4 replies
▫ Berning output buffer ▫ 10-15-2005 06:03 PM - 10 replies
▫ Tube PSU Question ▫ 10-15-2005 04:39 PM - 18 replies
▫ JoLida Envoy PreAmp or DIY? ▫ 10-15-2005 03:28 PM - 1 reply
▫ Looking for Audio Note P1SE schematics. ▫ 10-15-2005 10:31 AM - 2 replies
▫ Which SE-ECL82 amp to build? ▫ 10-15-2005 07:04 AM - 12 replies
▫ PSU Help ▫ 10-15-2005 05:10 AM - 4 replies
▫ Help for stabilisator Data ▫ 10-14-2005 01:40 PM - 0 replies
▫ How much ripple on B+ is allowed? ▫ 10-14-2005 12:31 PM - 11 replies
▫ Typical 2A3 hum? ▫ 10-14-2005 10:06 AM - 31 replies
▫ 300B Filament Voltage Range ▫ 10-14-2005 05:05 AM - 4 replies
▫ Mullard EL34-Authenticity Verification ▫ 10-14-2005 02:54 AM - 19 replies
▫ Fading or Frying Fender Clone Issue ▫ 10-13-2005 10:44 PM - 34 replies
▫ Philips V30M amplifier ▫ 10-13-2005 12:31 PM - 0 replies
▫ PWM power supply??? ▫ 10-13-2005 12:23 PM - 11 replies
▫ Regulated psu for tube preamp ▫ 10-13-2005 11:37 AM - 21 replies
▫ About to start a new project: PP 6CK4s... ▫ 10-13-2005 11:31 AM - 5 replies
▫ Komuro DC 300B crct w/ 50dht? ▫ 10-13-2005 04:55 AM - 0 replies
▫ Anyone out there try a SEPP OTL guitar amp?? ▫ 10-12-2005 10:11 PM - 10 replies
▫ DIY speaker attenuator? ▫ 10-12-2005 07:28 AM - 1 reply
▫ So what are some good 7-pin, hi mu, low noise/microphonic tubes?? ▫ 10-12-2005 05:01 AM - 16 replies
▫ Audio meet pics from this past weekend ▫ 10-12-2005 03:32 AM - 9 replies
▫ Audio Note M7 Line Preamp?? ▫ 10-12-2005 03:13 AM - 16 replies
▫ PP 7591 amp ▫ 10-11-2005 08:08 PM - 0 replies
▫ Tube op amps ▫ 10-11-2005 06:43 PM - 16 replies
▫ Please tell me how to upgrade Music Angel KT88 amplifier? ▫ 10-11-2005 09:04 AM - 26 replies
▫ Do I want a fan? ▫ 10-11-2005 06:43 AM - 12 replies
▫ 3rd Aikido? ▫ 10-10-2005 04:05 PM - 6 replies
▫ More Questions about A.Wrights PP1C ▫ 10-10-2005 02:19 PM - 3 replies
▫ 7591s flashing on start-up? ▫ 10-10-2005 01:32 PM - 8 replies
▫ first amp build... wiring questions ▫ 10-10-2005 12:23 AM - 43 replies
▫ pentode aikido driver for 300b ▫ 10-09-2005 09:39 PM - 16 replies
▫ Question about single NOS triodes in cascode for fun ▫ 10-08-2005 07:39 PM - 39 replies
▫ oscillating PP EL84 amplifier ▫ 10-07-2005 06:06 PM - 21 replies
▫ 6H30P based cathode-follower schema kindly requested ▫ 10-07-2005 10:08 AM - 11 replies
▫ Cathode follower question ▫ 10-07-2005 06:33 AM - 6 replies
▫ Bunch of old parts, worth anything? ▫ 10-07-2005 06:19 AM - 29 replies
▫ 6922 vs. 6N1P Bass Response ▫ 10-06-2005 05:13 PM - 10 replies
▫ Behringer reaches a new high in tube "transparency" ▫ 10-06-2005 05:12 PM - 19 replies
▫ Input stage tube ▫ 10-06-2005 01:05 PM - 2 replies
▫ Using transformers as choke? ▫ 10-06-2005 10:50 AM - 12 replies
▫ Resistors ▫ 10-05-2005 11:37 PM - 16 replies
▫ melos gk1 preamps anybody? ▫ 10-05-2005 07:28 AM - 1 reply
▫ Looking for a thread... ▫ 10-05-2005 04:25 AM - 0 replies
▫ DG7-32 based oscillograph schematic needed ▫ 10-04-2005 03:27 PM - 5 replies
▫ Try!!! Ef37a + 6c33c ▫ 10-04-2005 04:11 AM - 0 replies
▫ qustion on tube grade wiring ▫ 10-04-2005 12:48 AM - 10 replies
▫ Balanced pre-amp attempt ▫ 10-03-2005 10:07 PM - 6 replies
▫ GRRR.. sanity check on PTx current please ▫ 10-03-2005 07:14 PM - 3 replies
▫ How do you measure ripple on the B+? ▫ 10-03-2005 04:29 PM - 9 replies
▫ Aikido + EL34 Integrated ▫ 10-03-2005 03:15 PM - 15 replies
▫ heater voltage: why ac, and not dc? ▫ 10-03-2005 01:53 PM - 18 replies
▫ Ideas for using one ECL82 in a preamp ▫ 10-03-2005 01:16 PM - 17 replies
▫ Question about 12AU7 ▫ 10-03-2005 03:30 AM - 3 replies
▫ 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre? ▫ 10-02-2005 08:36 PM - 4 replies
▫ WIMA FKP1 1000V as coupling cap ?? ▫ 10-02-2005 07:16 PM - 2 replies
▫ Ping amperex re: Hammond organs ▫ 10-02-2005 05:41 PM - 7 replies
▫ schematic needen variable power supply ▫ 10-02-2005 09:15 AM - 2 replies
▫ Distributed Load/Balanced Bridge Connection ▫ 10-01-2005 07:30 PM - 1 reply
▫ CCS, feedback and grid leak questions. ▫ 10-01-2005 12:25 PM - 35 replies
▫ Vdd ▫ 10-01-2005 11:16 AM - 3 replies
▫ Help with 6GW8/ECL86 tubes?? ▫ 10-01-2005 01:53 AM - 5 replies
▫ Best amplifier (recomendations) for Fostex FE108ez? ▫ 09-30-2005 09:28 PM - 4 replies
▫ Quick valve construction question ▫ 09-30-2005 08:31 PM - 25 replies
▫ Poindexter's 6v6 PP amp ▫ 09-30-2005 08:22 PM - 34 replies
▫ need some help with Ohm's law-fast! ▫ 09-30-2005 05:25 PM - 4 replies
▫ hybrid rectifier question ▫ 09-30-2005 05:05 PM - 17 replies
▫ I really, really wish I hadn't done that... ▫ 09-30-2005 03:02 PM - 25 replies
▫ Quicksilver 8417 conversion ▫ 09-30-2005 10:53 AM - 23 replies
▫ Supratek ▫ 09-29-2005 05:58 PM - 1 reply
▫ remote OPT, stupid idea ? ▫ 09-29-2005 05:35 PM - 17 replies
▫ Autoformer output stage ▫ 09-28-2005 11:08 PM - 24 replies
▫ Remote Power Supply: A Stupid Idea? ▫ 09-28-2005 07:31 PM - 22 replies
▫ Rjm simple tube phono pre ▫ 09-28-2005 07:24 PM - 2 replies
▫ Voltage controlled filter with tubes ?? ▫ 09-28-2005 07:04 PM - 3 replies
▫ Does this look right to you? ▫ 09-28-2005 05:40 PM - 12 replies
▫ PWM amplifier hooked onto a tube preamp ▫ 09-28-2005 11:04 AM - 2 replies
▫ Zenith Console Opt Question, Odd Secondary ▫ 09-28-2005 12:02 AM - 10 replies
▫ Marchand LN108 Tube Phono Preamp ▫ 09-27-2005 11:04 PM - 1 reply
▫ Anyone care to express an opinion on this output Transformer ▫ 09-27-2005 06:51 PM - 24 replies
▫ 6L6 Triode strapped amp suggestions ▫ 09-27-2005 09:14 AM - 8 replies
▫ 6F1 and 6P2 Equivalents ▫ 09-27-2005 05:05 AM - 1 reply
▫ in memoriam Fred N. AKA 807 ▫ 09-26-2005 09:28 PM - 5 replies
▫ Perplexed by 5AR4 Tube Socket? Picture Included ▫ 09-26-2005 08:32 PM - 4 replies
▫ Push pull 300B and more than a few questions... ▫ 09-26-2005 02:42 PM - 5 replies
▫ First tube project. ▫ 09-26-2005 01:34 PM - 15 replies
▫ DHT learning ▫ 09-26-2005 07:13 AM - 3 replies
▫ how do i add adjustable bias on amp? ▫ 09-25-2005 06:09 PM - 2 replies
▫ Tube tester: Accurate Instruments Model 157 ▫ 09-25-2005 04:09 PM - 0 replies
▫ "El Cheapo Valve Phono" using 6ER5=>12AT7WC? ▫ 09-25-2005 03:41 PM - 19 replies
▫ Valve headphone amp ▫ 09-25-2005 01:39 PM - 11 replies
▫ Design Questions ▫ 09-25-2005 12:09 PM - 5 replies
▫ SRPP + Gainclone ▫ 09-25-2005 06:15 AM - 4 replies
▫ dht p-p filament question ▫ 09-24-2005 02:01 AM - 7 replies
▫ Report - 2005 London HiFi Show ▫ 09-23-2005 10:03 PM - 1 reply
▫ Want to build hi - power amp ▫ 09-23-2005 07:35 PM - 5 replies
▫ Gibson Skylark Grouding Questions ▫ 09-23-2005 07:15 PM - 2 replies
▫ Can I mod this circuit to use 6922 tubes? ▫ 09-23-2005 11:17 AM - 4 replies
▫ 300B SE for Electrostatic Headphone ▫ 09-23-2005 07:10 AM - 5 replies
▫ tube preamp kit question (again?) ▫ 09-23-2005 06:28 AM - 1 reply
▫ 3f4 spice models needed ▫ 09-23-2005 05:41 AM - 1 reply
▫ Back to Back transformers to get +B of 200V ?? ▫ 09-22-2005 06:10 PM - 5 replies
▫ New amp project-some ideas of my own and looking for input from others... ▫ 09-22-2005 02:13 PM - 8 replies
▫ Emphasising the transients, but making the mediocre listenable ▫ 09-22-2005 01:31 PM - 11 replies
▫ Looking For a PP 6Y6GA Design ▫ 09-22-2005 03:11 AM - 7 replies
▫ Industrial vs Commercial amps and OPT's ▫ 09-21-2005 08:39 PM - 10 replies
▫ ECC99 operating points? ▫ 09-21-2005 01:13 PM - 6 replies
▫ Preamp suggestions for a tube newbie ▫ 09-21-2005 01:49 AM - 4 replies
▫ very odd thing happening in my amp... help ▫ 09-20-2005 11:05 PM - 15 replies
▫ 47 Penthode in triode mode. ▫ 09-20-2005 07:56 PM - 6 replies
▫ Capacitor value ▫ 09-20-2005 01:05 PM - 9 replies
▫ PSE bias how? ▫ 09-20-2005 09:51 AM - 0 replies
▫ GM70 Power supply ▫ 09-20-2005 08:29 AM - 4 replies
▫ interstage convert to phase splitter ▫ 09-20-2005 08:19 AM - 8 replies
▫ EL84 SE advice'n'schematics needed ▫ 09-20-2005 07:28 AM - 23 replies
▫ world's heaviest 2A3 amp? ▫ 09-20-2005 02:58 AM - 22 replies
▫ How To Tell What Tubes To Keep ▫ 09-20-2005 12:26 AM - 10 replies
▫ PX4 Trauma ▫ 09-19-2005 09:54 PM - 0 replies
▫ An amplifier project I'm looking for... ▫ 09-19-2005 08:51 PM - 2 replies
▫ Your 100volt plus moment ▫ 09-19-2005 04:00 PM - 32 replies
▫ Dynaco rectifier replacement? ▫ 09-19-2005 11:12 AM - 10 replies
▫ SET on a budget ▫ 09-19-2005 05:18 AM - 4 replies
▫ PSU Design Learning Links ▫ 09-19-2005 02:57 AM - 7 replies
▫ Expensive Commercial Amps ▫ 09-18-2005 04:11 PM - 27 replies
▫ Jaycar Preamp as a headphone amp? ▫ 09-18-2005 02:09 PM - 2 replies
▫ Tube modified CD player with TDA1543 ▫ 09-18-2005 05:37 AM - 0 replies
▫ Types of polypropylene capacitor.... ▫ 09-17-2005 05:10 PM - 9 replies
▫ Fluorescent lamp choke - use in tube amp? ▫ 09-17-2005 10:13 AM - 12 replies
▫ Mains Transformer for EL34PP ▫ 09-17-2005 07:17 AM - 20 replies
▫ Tube Overdrive ▫ 09-17-2005 07:17 AM - 5 replies
▫ Please review schematic ▫ 09-17-2005 02:06 AM - 9 replies
▫ Wire size for projects? ▫ 09-16-2005 11:16 PM - 18 replies
▫ super simple tube amp needed... ▫ 09-16-2005 10:53 PM - 2 replies
▫ Modifing A Fender Bassman Scheme ▫ 09-16-2005 05:41 PM - 5 replies
▫ Matlab-based triode modelling software ▫ 09-16-2005 04:26 PM - 1 reply
▫ 12AT7 Pre-amp schematic, where to find? ▫ 09-16-2005 02:54 PM - 11 replies
▫ Test settings for Hickok 539A for 183/483 tube? ▫ 09-16-2005 02:54 PM - 0 replies
▫ PV10 PS transformer ▫ 09-16-2005 02:54 PM - 0 replies
▫ choke input ripple level? ▫ 09-16-2005 02:54 PM - 4 replies
▫ 120 Hz Buzz Unplugged ▫ 09-16-2005 02:28 PM - 4 replies
▫ 300B like 845 ▫ 09-16-2005 02:19 PM - 24 replies
▫ Guitar amp picks up radio?? ▫ 09-16-2005 04:58 AM - 6 replies
▫ DC filament ground and high voltage ground ▫ 09-15-2005 05:52 PM - 0 replies
▫ Roll CALL: How many guitar amp guys are here ▫ 09-15-2005 05:03 PM - 19 replies
▫ DIY Club remote volume help? ▫ 09-15-2005 01:03 PM - 2 replies
▫ Aesthetix Rhea and I/O diagrams? ▫ 09-15-2005 12:18 PM - 6 replies
▫ Electrolytic vs polyprop capacitors ▫ 09-15-2005 12:07 PM - 2 replies
▫ Cathode Bypass Cap questions ▫ 09-15-2005 07:46 AM - 1 reply
▫ rectification and xfmr stress ▫ 09-15-2005 06:57 AM - 16 replies
▫ Audio Research ▫ 09-15-2005 04:50 AM - 26 replies
▫ Anybody got Melos MA-111 Schematic? ▫ 09-14-2005 11:46 PM - 0 replies
▫ Problem locating power supply ▫ 09-14-2005 10:04 PM - 7 replies
▫ Timer Relay ▫ 09-14-2005 06:29 PM - 6 replies
▫ Help With Jukebox Amp ▫ 09-14-2005 05:17 PM - 2 replies
▫ Help the Idiot: Simple, Great-Sounding Integrated Amp Designs ▫ 09-14-2005 04:07 PM - 7 replies
▫ Help Please Guitar Project Mess ▫ 09-14-2005 03:53 PM - 7 replies
▫ Help - tube driver for spring reverb... ▫ 09-14-2005 02:49 PM - 8 replies
▫ 6W6 as a driver ▫ 09-14-2005 11:29 AM - 9 replies
▫ Choosing the best EL34 pp opt ▫ 09-14-2005 10:33 AM - 17 replies
▫ Your opinion, please ▫ 09-14-2005 08:45 AM - 2 replies
▫ Tube surround sound ▫ 09-14-2005 06:29 AM - 17 replies
▫ Could you guys check this cascode article for me ▫ 09-13-2005 06:59 PM - 12 replies
▫ what would happen if... ▫ 09-13-2005 06:24 PM - 8 replies
▫ A Heretical Unity Gain Line Stage part III ▫ 09-13-2005 05:43 PM - 154 replies
▫ Which ECC83 tube and caps question ▫ 09-13-2005 05:19 PM - 4 replies
▫ Aikido as a headphone amplifier (Output transformer groupbuy) ▫ 09-13-2005 12:14 PM - 59 replies
▫ Paralle Push Pull Simulclass ▫ 09-13-2005 03:42 AM - 2 replies
▫ organ amp question ▫ 09-12-2005 10:48 PM - 1 reply
▫ Stereo build- Mikael Abdellah's KT88 SE amp ▫ 09-12-2005 09:45 PM - 88 replies
▫ Audio Research AC21 cross over ▫ 09-12-2005 09:44 PM - 0 replies
▫ First DIY amp pics-as promised! ▫ 09-12-2005 07:34 PM - 42 replies
▫ emission-lab info ▫ 09-12-2005 07:25 PM - 1 reply
▫ Simple EL84 PP design needed ▫ 09-12-2005 05:05 PM - 37 replies
▫ 6C33 Circlotron ▫ 09-12-2005 02:42 PM - 50 replies
▫ Valves glow fierce ▫ 09-12-2005 01:06 PM - 12 replies
▫ Kirung's GM70 SE-Amps from Korea ▫ 09-12-2005 10:47 AM - 2 replies
▫ Digital Pots ▫ 09-12-2005 10:15 AM - 5 replies
▫ Troubleshooting First Tube Project ▫ 09-12-2005 03:26 AM - 14 replies
▫ Millett Low mu Preamp help ▫ 09-11-2005 10:39 PM - 2 replies
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