| Tubes - Showing threads 7201 to 7400 of 11882 available |
▫ Hybrid X line amp ▫ 09-09-2005 06:15 AM - 4 replies
▫ any way to fix a end cap on a 807 power tube ▫ 09-08-2005 09:27 PM - 9 replies
▫ power tube question ▫ 09-08-2005 07:15 PM - 1 reply
▫ MJ head-amp- how does it sound? ▫ 09-08-2005 05:41 PM - 1 reply
▫ Quick Aikido question ▫ 09-08-2005 05:00 PM - 2 replies
▫ What kind of amp? ▫ 09-08-2005 03:33 PM - 11 replies
▫ Problem with cathode resistor ▫ 09-08-2005 02:31 PM - 3 replies
▫ 2A3 DRD schematic wanted ▫ 09-08-2005 01:46 PM - 0 replies
▫ reduce before amplifying? ▫ 09-08-2005 08:51 AM - 11 replies
▫ 6AS7-G RCA application considerations ▫ 09-08-2005 08:22 AM - 8 replies
▫ Matisse Fantasy waveform output test ▫ 09-08-2005 06:21 AM - 35 replies
▫ El84/6bq5/ecc83 + Ef86 = Dc Pp ▫ 09-07-2005 11:49 PM - 0 replies
▫ Searching for simple circuit ▫ 09-07-2005 08:30 PM - 8 replies
▫ McIntosh MC60 Screens ▫ 09-07-2005 06:53 PM - 0 replies
▫ Improve this Pilot 240 (EL84/6BQ5) ▫ 09-07-2005 03:28 PM - 7 replies
▫ Eimac 35TG ▫ 09-07-2005 03:07 PM - 6 replies
▫ power supply issues ▫ 09-07-2005 02:56 PM - 6 replies
▫ Which Amperex ECC88 is the best? ▫ 09-07-2005 01:24 PM - 1 reply
▫ laney PA amp questions ▫ 09-07-2005 10:22 AM - 3 replies
▫ Grid battery bias on phono.... ▫ 09-07-2005 09:47 AM - 16 replies
▫ EL34 identification ▫ 09-07-2005 01:26 AM - 3 replies
▫ Simple 6L6 PP Guitar Design Needed ▫ 09-07-2005 01:10 AM - 1 reply
▫ UL vs SE ▫ 09-06-2005 12:47 PM - 22 replies
▫ 6sn7 operating points ▫ 09-06-2005 03:55 AM - 15 replies
▫ HELP! B+ voltage problem/burning power resistor ▫ 09-06-2005 02:00 AM - 1 reply
▫ Free Lunch/Monkey/DRD inspired 2A3 ▫ 09-05-2005 08:59 PM - 19 replies
▫ are these tubes any good ????? ▫ 09-05-2005 08:59 PM - 5 replies
▫ E280F Triode mode operating point ▫ 09-05-2005 08:59 PM - 0 replies
▫ EL84 Guitar amp questions (long, sorry) ▫ 09-05-2005 05:14 PM - 2 replies
▫ 2nd Aikido PCB and PSU groupbuy ▫ 09-05-2005 03:14 PM - 66 replies
▫ Newbie question... ▫ 09-05-2005 02:23 PM - 1 reply
▫ Help in getting more gain out of 300B SE ▫ 09-05-2005 10:57 AM - 11 replies
▫ ECC808 what to do ▫ 09-05-2005 08:13 AM - 15 replies
▫ Microphonics When Hot, Raytheon CK5842 ▫ 09-05-2005 05:08 AM - 2 replies
▫ MOSCODE hybrid DIY ▫ 09-05-2005 01:38 AM - 0 replies
▫ transformer question ▫ 09-04-2005 10:29 PM - 1 reply
▫ help, my amp humz ▫ 09-04-2005 06:25 PM - 8 replies
▫ Le tube preamp ▫ 09-04-2005 11:32 AM - 0 replies
▫ Ideal operating point of 6sj7 ▫ 09-04-2005 09:55 AM - 5 replies
▫ Convert a non-valve amp to a Valve (tube) Amp ▫ 09-04-2005 07:44 AM - 11 replies
▫ Anyone tried the Hammond 1642SE in a BIG SE amp? ▫ 09-03-2005 11:49 PM - 2 replies
▫ MOSFET current source as triode load ▫ 09-03-2005 04:40 PM - 42 replies
▫ C-core transformers ▫ 09-03-2005 12:09 PM - 7 replies
▫ choke and choke ▫ 09-03-2005 11:56 AM - 8 replies
▫ High Voltage Power Supply Caps ▫ 09-03-2005 01:11 AM - 14 replies
▫ suggestions for 300B tubes ▫ 09-02-2005 08:59 PM - 2 replies
▫ Differential input stage ▫ 09-02-2005 04:45 PM - 8 replies
▫ rca conversion ▫ 09-02-2005 02:44 PM - 3 replies
▫ heating ▫ 09-02-2005 08:20 AM - 3 replies
▫ Russian 6N8S/1578 ▫ 09-02-2005 01:40 AM - 11 replies
▫ DIY tube amp squeals when turned up ▫ 09-02-2005 12:14 AM - 4 replies
▫ ECL80-Amp from Andreas Kirschner ▫ 09-01-2005 05:29 PM - 2 replies
▫ HSS preamp, anyone care to comment ▫ 09-01-2005 10:42 AM - 8 replies
▫ help me design an input stage for 6b4G PP ▫ 08-31-2005 10:20 PM - 11 replies
▫ Instrument/Microphone Tube Pre-amp ▫ 08-31-2005 06:46 PM - 6 replies
▫ first-time tube DIY project...phono preamp ▫ 08-31-2005 04:42 PM - 6 replies
▫ A question regarding schematics ▫ 08-31-2005 01:25 PM - 3 replies
▫ My first creation ▫ 08-31-2005 12:28 PM - 15 replies
▫ Your opinion on this VCCS heater supply please. ▫ 08-31-2005 10:15 AM - 3 replies
▫ Looking for ORIGINAL GE 6L6GC ▫ 08-31-2005 12:34 AM - 11 replies
▫ Need help - O/T trannies for future project ▫ 08-30-2005 09:20 PM - 13 replies
▫ ECL82 (6BM8) PP Stereo ▫ 08-30-2005 08:15 PM - 22 replies
▫ first DIY amp start up-yowza HELP! ▫ 08-30-2005 05:05 PM - 13 replies
▫ Ronette Info ▫ 08-30-2005 01:59 PM - 4 replies
▫ GE 5687 (5 stars) ▫ 08-29-2005 07:12 PM - 3 replies
▫ vox ac4 ▫ 08-29-2005 03:57 PM - 5 replies
▫ Who makes a 1962 Bassman head chassis? ▫ 08-29-2005 11:26 AM - 3 replies
▫ Help: Toroid choke for a preamp ▫ 08-29-2005 11:26 AM - 7 replies
▫ does meter degrade sound ? ▫ 08-29-2005 08:13 AM - 1 reply
▫ Eye Tube (1629) controller help ▫ 08-29-2005 06:04 AM - 15 replies
▫ Scott 99B & 99C Public Auction Find ▫ 08-28-2005 09:01 PM - 3 replies
▫ tube id book ▫ 08-28-2005 02:16 PM - 1 reply
▫ radio , tv station and radar stations still use the best single end class a amplifier ▫ 08-28-2005 01:32 PM - 16 replies
▫ Stupid question? ▫ 08-27-2005 08:38 PM - 6 replies
▫ looking for ideas on a small tube amp stand? ▫ 08-27-2005 07:58 PM - 5 replies
▫ Cascode gain stage info????? ▫ 08-27-2005 07:05 PM - 22 replies
▫ hi gain preamp ▫ 08-27-2005 04:50 PM - 2 replies
▫ Ideas for using a pair of ECL82 in a headphone amp. ▫ 08-27-2005 11:51 AM - 60 replies
▫ Tube flashing ▫ 08-27-2005 04:18 AM - 15 replies
▫ Bogen tube amp with variable Damping Factor ▫ 08-26-2005 11:35 PM - 0 replies
▫ Aikado Based Tubed Headphone Amp ▫ 08-26-2005 07:38 PM - 6 replies
▫ Question re Allen Wright PP-1cs ▫ 08-26-2005 12:55 PM - 18 replies
▫ What is a good Tube tester to get? ▫ 08-26-2005 12:28 PM - 20 replies
▫ High Gain Preamp ▫ 08-26-2005 11:43 AM - 3 replies
▫ SACThailand ▫ 08-26-2005 09:49 AM - 1 reply
▫ You know you're a tube junky when... ▫ 08-26-2005 07:42 AM - 19 replies
▫ 6AU6 to do EF86 duty? ▫ 08-26-2005 02:59 AM - 10 replies
▫ 6Н28Б-В datasheet? ▫ 08-25-2005 07:35 PM - 1 reply
▫ Is single ended Class A better than push-pull? ▫ 08-25-2005 05:43 PM - 49 replies
▫ Is 845 better than 211 tube amplifier? ▫ 08-25-2005 03:59 PM - 4 replies
▫ Cool Fireworks (tubes are tough!) ▫ 08-25-2005 01:49 PM - 3 replies
▫ Big Big hum ??? ▫ 08-25-2005 04:06 AM - 4 replies
▫ 5687 filament heater question ▫ 08-25-2005 12:47 AM - 2 replies
▫ Anyone know agood MOSFET drive for RCA 811A Tube? ▫ 08-24-2005 08:07 PM - 9 replies
▫ Who is into musical instrument tube amplification? ▫ 08-24-2005 06:56 PM - 15 replies
▫ buffer stage ECC88 or ECC83? ▫ 08-24-2005 05:13 PM - 4 replies
▫ EL34 Integrated ▫ 08-24-2005 03:48 PM - 18 replies
▫ Solid state HT regulator?? ▫ 08-24-2005 08:04 AM - 12 replies
▫ Tubes driving dipole mids ▫ 08-24-2005 01:22 AM - 20 replies
▫ How do I turn an high current signal into a line level signal?? ▫ 08-23-2005 09:43 PM - 8 replies
▫ Peer review, UL question ▫ 08-23-2005 08:50 PM - 8 replies
▫ Grundig TK60 - Where is the Line Out ? ▫ 08-23-2005 07:51 PM - 1 reply
▫ 12AX7, EL34 or 6L6 design wanted ▫ 08-23-2005 10:29 AM - 22 replies
▫ RCA to Speakers? ▫ 08-23-2005 07:36 AM - 10 replies
▫ Morgan Jones - Valve books ▫ 08-23-2005 07:24 AM - 4 replies
▫ Any one tried to use subminiature for input tubes? ▫ 08-23-2005 02:50 AM - 23 replies
▫ Tube data for current manufacturers? ▫ 08-23-2005 12:57 AM - 1 reply
▫ Pentode to Triode Switch ▫ 08-22-2005 11:15 PM - 22 replies
▫ fried Heatkit IP-17 power supply ▫ 08-22-2005 08:30 PM - 8 replies
▫ Suggestions for Tube Amplifier ▫ 08-22-2005 01:57 PM - 36 replies
▫ SMPS for 300B heater ? ▫ 08-22-2005 09:20 AM - 9 replies
▫ What does this mean? ▫ 08-22-2005 06:41 AM - 8 replies
▫ heater/cathode query ▫ 08-21-2005 03:21 PM - 5 replies
▫ Bottlehead S.E.X Amp ▫ 08-21-2005 04:55 AM - 6 replies
▫ Old Meets New ▫ 08-20-2005 07:27 PM - 3 replies
▫ 6336-SE modification ▫ 08-20-2005 06:00 AM - 26 replies
▫ 6as7 pre-amp questions. ▫ 08-19-2005 09:36 PM - 6 replies
▫ Help in calculating NFB loop. ▫ 08-19-2005 10:46 AM - 2 replies
▫ ECL86 - quick and dirty ▫ 08-19-2005 10:24 AM - 8 replies
▫ Headphone amp questions??? ▫ 08-19-2005 10:22 AM - 13 replies
▫ Help! Q? about Ohm load in '59 Bassman RI ▫ 08-19-2005 01:12 AM - 2 replies
▫ preamp tubes change ▫ 08-18-2005 07:07 PM - 3 replies
▫ Parallel PP ECL86 ▫ 08-18-2005 12:46 PM - 5 replies
▫ Anyone build a Minimal Reactance PSU? ▫ 08-18-2005 11:29 AM - 29 replies
▫ Transformer hook-up question to 115V AC line ▫ 08-18-2005 05:52 AM - 10 replies
▫ Langevin Schematic Archive ▫ 08-18-2005 03:09 AM - 2 replies
▫ PPP EL84 Amp ▫ 08-18-2005 01:37 AM - 8 replies
▫ Interesting comparison between NOS RCA 12ax7, Chinese 12ax7a ▫ 08-17-2005 09:41 PM - 6 replies
▫ Aikido: Width control ▫ 08-17-2005 07:48 PM - 1 reply
▫ Shielded Input Wire ▫ 08-17-2005 07:11 PM - 5 replies
▫ choke ▫ 08-17-2005 01:54 PM - 3 replies
▫ Multiple Inputs in One Shielded Cable? ▫ 08-17-2005 01:08 PM - 8 replies
▫ Presence control on a SE ? ▫ 08-17-2005 11:52 AM - 8 replies
▫ Question : pentode ccs schematic ? ▫ 08-17-2005 10:02 AM - 18 replies
▫ right capacitor value? ▫ 08-17-2005 07:56 AM - 7 replies
▫ Anybody knows this tube--WE 430C ▫ 08-17-2005 07:38 AM - 2 replies
▫ Transformer substitution help ▫ 08-17-2005 03:15 AM - 5 replies
▫ CFB Issues ▫ 08-16-2005 09:47 PM - 12 replies
▫ Please Suggest: Old Tube Usages ▫ 08-16-2005 09:27 AM - 2 replies
▫ Very powerful push/pull circuit ▫ 08-16-2005 08:30 AM - 2 replies
▫ Project choice for KT88 ▫ 08-16-2005 07:24 AM - 6 replies
▫ Tamura F-475 in Parafeed? ▫ 08-16-2005 01:57 AM - 2 replies
▫ Kofi Annan in: "Push and Pull with Me" ▫ 08-16-2005 01:24 AM - 340 replies
▫ Schmitt dephaser ▫ 08-15-2005 03:09 PM - 15 replies
▫ Anyone using Chelmer Valves? ▫ 08-15-2005 10:44 AM - 3 replies
▫ SET w/ 300B Ultrapath + Parafeed Typologies ▫ 08-15-2005 06:58 AM - 1 reply
▫ a question about local feedback ▫ 08-14-2005 04:18 PM - 8 replies
▫ about input transformer ▫ 08-14-2005 03:28 PM - 2 replies
▫ Power transformer selection madness ▫ 08-14-2005 02:35 PM - 2 replies
▫ EF91 Line Stage questions ▫ 08-14-2005 02:35 PM - 6 replies
▫ Sourcing parts for Dynaco PAS rebuild ▫ 08-14-2005 02:29 PM - 1 reply
▫ HH Scott 223 monoblock schematics ▫ 08-14-2005 12:37 PM - 0 replies
▫ info needed on the 7c6 tube ▫ 08-13-2005 07:38 PM - 2 replies
▫ A final question on grounding(yeah right!) ▫ 08-13-2005 01:34 PM - 2 replies
▫ Schematics and Manuals Site Found ▫ 08-13-2005 06:53 AM - 7 replies
▫ Sprague/Cap Color Codes ? ▫ 08-12-2005 10:21 PM - 4 replies
▫ saba console radio working? ▫ 08-12-2005 06:59 PM - 9 replies
▫ Feedback and mu-followers ▫ 08-12-2005 05:51 PM - 2 replies
▫ Hundreds of 6AL5s ▫ 08-12-2005 10:33 AM - 9 replies
▫ Orange/Red Spot on The Anode of Sovtek 6L6GC ▫ 08-12-2005 03:20 AM - 17 replies
▫ Best way to isolate non-isolated RCAs? ▫ 08-11-2005 11:23 PM - 7 replies
▫ Power Resistor Smoking on HF-81 ▫ 08-11-2005 10:29 PM - 14 replies
▫ Audio Innovations L-2 ▫ 08-11-2005 08:45 PM - 5 replies
▫ first tube project ▫ 08-11-2005 03:49 PM - 4 replies
▫ And now a question about power switch... ▫ 08-11-2005 11:33 AM - 13 replies
▫ 2E24 ultralinear ▫ 08-10-2005 11:51 PM - 4 replies
▫ tube pin numbers ▫ 08-10-2005 10:34 PM - 3 replies
▫ Will This possibly work? ▫ 08-10-2005 08:35 PM - 20 replies
▫ What is the right current for a 300B at 400V and -80V grid bias? ▫ 08-10-2005 06:57 PM - 11 replies
▫ Simple Cap-Coupled CF Advise Needed ▫ 08-10-2005 02:54 PM - 6 replies
▫ tube amp layout reality check ▫ 08-10-2005 02:49 PM - 5 replies
▫ plitron ▫ 08-10-2005 11:22 AM - 9 replies
▫ How long does a 7199 last? ▫ 08-10-2005 07:45 AM - 3 replies
▫ Modding Tube Mixer Into DAW Front End ▫ 08-10-2005 07:39 AM - 6 replies
▫ CAE Cascode Diffamp Front End ▫ 08-10-2005 04:39 AM - 1 reply
▫ recommended resistor wattage ▫ 08-09-2005 07:11 PM - 2 replies
▫ 6.3V Rectifier Tube Lit by 5V ▫ 08-09-2005 04:28 PM - 8 replies
▫ Grommes / Western Electric G5M Tube Mixer Mods ▫ 08-09-2005 06:55 AM - 2 replies
▫ Precision Electronics Amp w/ 6GT5's, Convert to 6L6's? ▫ 08-09-2005 06:55 AM - 5 replies
▫ WE121A, Please critique me ▫ 08-09-2005 06:55 AM - 10 replies
▫ schemes needed ▫ 08-09-2005 06:35 AM - 0 replies
▫ PP to PPP ▫ 08-08-2005 08:21 PM - 7 replies
▫ aikido voltage swing ▫ 08-08-2005 08:15 PM - 8 replies
▫ voltage drop across a CCS... ▫ 08-08-2005 04:08 PM - 4 replies
▫ bogen db20 Schematic ▫ 08-08-2005 03:42 PM - 14 replies
▫ Mullards branded as Telefunkens??? ▫ 08-08-2005 03:13 PM - 7 replies
▫ Pentodes; plate resistance; damping... ▫ 08-08-2005 02:42 PM - 20 replies
▫ PP amp has become SE? ▫ 08-08-2005 06:13 AM - 6 replies
▫ anyone mod a NYAL Moscode superIt? ▫ 08-07-2005 06:54 PM - 0 replies
▫ update to phillips sepp otl? ▫ 08-07-2005 02:09 PM - 2 replies
▫ DC filament supply LC or CL ▫ 08-07-2005 08:01 AM - 1 reply
▫ No Bass Control ▫ 08-07-2005 12:48 AM - 18 replies
▫ Unison Research Simply2 or s2schematics ▫ 08-06-2005 08:16 PM - 0 replies
▫ Border Patrol Power Supply ▫ 08-06-2005 04:08 PM - 4 replies
▫ Any leads on repairing a vintage Alamo Capri tube amp? >> ▫ 08-06-2005 03:27 AM - 0 replies
▫ nanocrystalline amorphous OPT ▫ 08-06-2005 12:19 AM - 20 replies
▫ El84 Pp ▫ 08-05-2005 08:20 AM - 11 replies
▫ Preamp, Euridice? ▫ 08-05-2005 03:02 AM - 13 replies
▫ Has anyone built a PS like this? ▫ 08-05-2005 12:18 AM - 5 replies
▫ Tube sockets in Eagle? ▫ 08-04-2005 10:20 PM - 14 replies
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