| Tubes - Showing threads 201 to 400 of 11880 available |
▫ what double triode is less microphonic ? ▫ 09-04-2008 11:52 AM - 24 replies
▫ Need advice on proper use of anode chokes. ▫ 09-04-2008 10:59 AM - 3 replies
▫ Grounding problem? ▫ 09-04-2008 10:20 AM - 16 replies
▫ Current regulation for filament of say a 300B ▫ 09-03-2008 03:11 PM - 10 replies
▫ diagram for OTP 6.6K valve KT88 ▫ 09-03-2008 08:24 AM - 17 replies
▫ Dynaco Pas Transformer ▫ 09-03-2008 03:33 AM - 2 replies
▫ Regulated screen supply ▫ 09-03-2008 02:13 AM - 5 replies
▫ Shocked!!! ▫ 09-03-2008 12:43 AM - 29 replies
▫ set el84 tube amp ▫ 09-02-2008 01:02 PM - 15 replies
▫ tube preamp RIAA ▫ 09-02-2008 11:39 AM - 5 replies
▫ 4E27 as a substitution of 845 ▫ 09-02-2008 02:12 AM - 0 replies
▫ LS 37 lite audio phono ▫ 09-02-2008 01:52 AM - 3 replies
▫ I want to build an amp!!! ▫ 09-01-2008 11:07 PM - 21 replies
▫ Multimeter test leads? ▫ 09-01-2008 08:32 PM - 4 replies
▫ Choosing proper g2 grid stoppers for SE UL..? ▫ 09-01-2008 07:41 PM - 3 replies
▫ audio note P1SE improvements ▫ 09-01-2008 07:07 PM - 0 replies
▫ Help for choke input regulated PSU ▫ 09-01-2008 01:29 PM - 5 replies
▫ 5687 perveance ▫ 09-01-2008 10:43 AM - 0 replies
▫ Where Can I Pick Up Neutral ▫ 09-01-2008 01:53 AM - 3 replies
▫ Hyperlinear line preamp ▫ 09-01-2008 01:07 AM - 8 replies
▫ What tube to use. ▫ 08-31-2008 08:45 PM - 8 replies
▫ Using mains transformer as output transformer ▫ 08-31-2008 07:56 PM - 163 replies
▫ AutoCAD of tube Packages? ▫ 08-31-2008 03:54 PM - 4 replies
▫ Has Anyone Tried This Before?? ▫ 08-31-2008 02:32 PM - 13 replies
▫ More Tube Learning (for me) Cathode followers ▫ 08-31-2008 07:00 AM - 45 replies
▫ weird hum problem ▫ 08-31-2008 04:33 AM - 4 replies
▫ Simple technique for guitar amp channel switching? ▫ 08-30-2008 08:38 PM - 2 replies
▫ Weird oscillation ▫ 08-30-2008 07:24 PM - 26 replies
▫ Tube stash strategy and testing (long) ▫ 08-30-2008 06:02 PM - 28 replies
▫ Choke loaded LTP ▫ 08-30-2008 11:15 AM - 5 replies
▫ LM Ericsson 2C51 help! ▫ 08-29-2008 11:07 PM - 3 replies
▫ Antek TXs??Any use em??? ▫ 08-29-2008 10:12 PM - 15 replies
▫ Speaker impedance questions (SE KT88) ▫ 08-29-2008 08:39 PM - 8 replies
▫ Spud-Assist: Totem-Pole Current-Mirror PP Hybrid ▫ 08-29-2008 08:19 PM - 41 replies
▫ my 6922 / E88CC preamp ▫ 08-29-2008 04:47 PM - 23 replies
▫ 3 amps for HE speakers ▫ 08-29-2008 04:40 PM - 3 replies
▫ For the moderator ▫ 08-29-2008 04:40 PM - 4 replies
▫ Pentode sounds great ▫ 08-29-2008 03:16 PM - 15 replies
▫ Shindo claret ▫ 08-29-2008 03:06 PM - 0 replies
▫ james 6123hs ▫ 08-29-2008 10:09 AM - 4 replies
▫ 6550 Amplifier ▫ 08-29-2008 07:30 AM - 2 replies
▫ ARC Ls 15 Schematic ▫ 08-28-2008 05:28 PM - 1 reply
▫ Super spud-amp? ▫ 08-28-2008 04:37 PM - 6 replies
▫ Basic Oscilloscope Usage Questions ▫ 08-28-2008 02:46 PM - 12 replies
▫ Grounded Cathode phase? ▫ 08-28-2008 02:03 PM - 2 replies
▫ Simple SE, how to wire CFB with outputs for different speaker impedances? ▫ 08-28-2008 06:09 AM - 1 reply
▫ PCB Board designer? ▫ 08-27-2008 07:27 PM - 6 replies
▫ Speaker for your low power tube amp? ▫ 08-27-2008 07:01 PM - 0 replies
▫ Tube collection Database. ▫ 08-27-2008 05:24 PM - 7 replies
▫ E288cc value? ▫ 08-27-2008 11:54 AM - 2 replies
▫ Hi End Tube Project ▫ 08-27-2008 09:13 AM - 18 replies
▫ parallel SE 2A3 ▫ 08-27-2008 07:35 AM - 20 replies
▫ Want to build a tube/SS hybrid preamp for HT ▫ 08-27-2008 05:26 AM - 4 replies
▫ Do anyone has schematic for Counterpoint SA3000 ? ▫ 08-27-2008 12:24 AM - 0 replies
▫ Thermistor B+ or primary ▫ 08-26-2008 10:34 PM - 9 replies
▫ Long time lurker - first build a tubelab Simple SE ▫ 08-26-2008 09:10 PM - 55 replies
▫ Measuring AC at Radio Frequencies ▫ 08-26-2008 08:32 PM - 2 replies
▫ The MingDa MC67-HA meets Frankenstein ▫ 08-26-2008 06:53 PM - 0 replies
▫ What's the biggest full wave damper diode? ▫ 08-26-2008 06:18 PM - 12 replies
▫ Maximising Tube Life ▫ 08-26-2008 05:28 PM - 44 replies
▫ Darling power supply calculations ▫ 08-26-2008 04:09 PM - 14 replies
▫ This is nice - Pix Ongen tube RIAA amp ▫ 08-26-2008 12:04 PM - 2 replies
▫ Tubelab SE 45... Super amp!? ▫ 08-26-2008 11:38 AM - 0 replies
▫ DAC - tube gain stage w/ AC heaters ▫ 08-26-2008 05:19 AM - 5 replies
▫ Microphonics? ▫ 08-26-2008 05:09 AM - 5 replies
▫ Insides of Tango Transformers ▫ 08-25-2008 11:41 PM - 6 replies
▫ Thoughts on horizontal sweep tubes? ▫ 08-25-2008 11:18 PM - 14 replies
▫ 2A3 Design Issues (Long) ▫ 08-25-2008 07:23 PM - 34 replies
▫ Design using EL42 output pentodes ▫ 08-25-2008 02:21 PM - 53 replies
▫ Blumlein's Garter Bias question ▫ 08-24-2008 10:03 PM - 6 replies
▫ Original ECL86 "Baby Huey" thread ▫ 08-24-2008 09:27 PM - 11 replies
▫ Too low heater voltage? ▫ 08-24-2008 08:12 PM - 6 replies
▫ Tube and digital? ▫ 08-24-2008 03:53 PM - 3 replies
▫ What to swap a 6AV6 for? ▫ 08-24-2008 09:40 AM - 2 replies
▫ 807 monoblocks ▫ 08-24-2008 09:40 AM - 13 replies
▫ Pot Noise Help ▫ 08-24-2008 05:01 AM - 8 replies
▫ cathode bias circuit question ▫ 08-23-2008 11:12 PM - 14 replies
▫ ECC40 driver stage for 2A3 ▫ 08-23-2008 08:20 PM - 3 replies
▫ heater current and 6922 - 6n6p swap ▫ 08-23-2008 07:44 PM - 3 replies
▫ Tube Crystal Clock Oscillator ▫ 08-23-2008 07:14 AM - 3 replies
▫ Decware Zen Plate Model ZSP1 ▫ 08-23-2008 04:57 AM - 3 replies
▫ Battery Power Preamp E188CC review please ! ▫ 08-23-2008 02:58 AM - 0 replies
▫ 6sl7 ▫ 08-23-2008 01:04 AM - 6 replies
▫ Tube sale at AES ▫ 08-22-2008 05:14 PM - 246 replies
▫ 5v3a ▫ 08-22-2008 12:24 PM - 34 replies
▫ 813 trioded Datasheet and curves ▫ 08-22-2008 10:49 AM - 55 replies
▫ Importance of resistor working voltage spec? ▫ 08-22-2008 03:51 AM - 11 replies
▫ TCJ My-Stock DB ▫ 08-22-2008 03:32 AM - 1 reply
▫ 845 Amp ▫ 08-22-2008 12:07 AM - 24 replies
▫ Ripple filtering help... strange slow rise and fall of voltage ▫ 08-21-2008 05:26 PM - 7 replies
▫ Plate and Filament Transformers ▫ 08-21-2008 04:25 PM - 1 reply
▫ Tentlabs Neg Bias Vs Machmat AFB ▫ 08-21-2008 01:32 PM - 6 replies
▫ Looking for 12AT7/ECC81 phonostage schematic ▫ 08-21-2008 05:59 AM - 1 reply
▫ 6AV5 PP amp Design Review ▫ 08-21-2008 04:42 AM - 5 replies
▫ 6sn7 Preamp power supply ▫ 08-20-2008 11:40 PM - 27 replies
▫ Resources for PA - Guitar amp conversion ▫ 08-20-2008 10:03 PM - 1 reply
▫ Please: tube kit for <$300? ▫ 08-20-2008 09:19 PM - 9 replies
▫ making a load line ▫ 08-20-2008 07:48 PM - 2 replies
▫ Telefunken Consoles: not just for tube and iron scavenging! ▫ 08-20-2008 05:01 PM - 3 replies
▫ Genalex Gold Lion KT77 ▫ 08-20-2008 09:52 AM - 24 replies
▫ driving HD600 ▫ 08-19-2008 11:44 PM - 1 reply
▫ Counterpoint SA-3000 ▫ 08-19-2008 10:14 PM - 0 replies
▫ Phono stage for 2 7F7s (stereo) plus buffer? ▫ 08-19-2008 03:37 PM - 7 replies
▫ Help and your input on YAQIN MC10L EL34 ▫ 08-19-2008 03:32 PM - 4 replies
▫ EL Cheapo Quad amplifier??? ▫ 08-19-2008 02:28 PM - 3 replies
▫ Noob questions about a K-12/K-502 kit ▫ 08-19-2008 07:11 AM - 6 replies
▫ 3 quick transformer questions ▫ 08-19-2008 03:32 AM - 16 replies
▫ Push Pull Output tranies for SE amp? ▫ 08-19-2008 02:33 AM - 7 replies
▫ Tube Rectifier Capacitance? ▫ 08-19-2008 12:06 AM - 6 replies
▫ rca 189 b console amps need more info ▫ 08-18-2008 09:05 PM - 0 replies
▫ upgrade transformer? ▫ 08-18-2008 07:14 PM - 6 replies
▫ Parasitic oscillation? (picture) ▫ 08-18-2008 06:44 PM - 14 replies
▫ newbie question : driver/output relationship, input sensitivity ▫ 08-17-2008 06:50 PM - 1 reply
▫ Unknown tube logo ▫ 08-17-2008 06:17 PM - 23 replies
▫ Impedance, the 10x rule, losses & bandwidth ▫ 08-17-2008 02:07 PM - 10 replies
▫ el84/6bq5 PSE ▫ 08-17-2008 12:41 PM - 7 replies
▫ A very odd phase inverter- comments? ▫ 08-16-2008 11:37 AM - 6 replies
▫ Please check my work :) ▫ 08-16-2008 06:36 AM - 11 replies
▫ NOS purchase, should I be concerned? ▫ 08-16-2008 04:38 AM - 6 replies
▫ Strange splitter in the Audio Research D4 ▫ 08-16-2008 04:26 AM - 4 replies
▫ 6ak5/5654 plate resistance ▫ 08-16-2008 02:23 AM - 7 replies
▫ Further Troubleshooting Simple SE ▫ 08-16-2008 02:00 AM - 6 replies
▫ What is the purpose of the g2 bypass cap? ▫ 08-16-2008 01:45 AM - 3 replies
▫ questionable 2a3 schematic ▫ 08-15-2008 07:12 PM - 28 replies
▫ overdrive circuit for hammond organs(need help) ▫ 08-15-2008 09:44 AM - 0 replies
▫ A singular experiment with a unheated tube. ▫ 08-15-2008 09:18 AM - 80 replies
▫ Limited bass response in one channel ▫ 08-15-2008 05:49 AM - 11 replies
▫ Show me your fave phonostage circuits. ▫ 08-15-2008 04:02 AM - 18 replies
▫ tube heater voltage, how much is too much? ▫ 08-14-2008 09:24 PM - 26 replies
▫ Para feed choke ▫ 08-14-2008 01:11 AM - 2 replies
▫ Dynaco ST35 power? ▫ 08-13-2008 02:59 PM - 15 replies
▫ Tips/comments for upcoming 300B build ▫ 08-13-2008 04:36 AM - 11 replies
▫ page Eli Duttman's Simple p-p with 5965 MQ EXO-173 and 6AQ5 ▫ 08-13-2008 03:42 AM - 25 replies
▫ DHT cathode follower idea ▫ 08-13-2008 01:30 AM - 5 replies
▫ GK71 Output Transformer ▫ 08-12-2008 07:43 PM - 5 replies
▫ Schematics for A.I. Mod 2D ▫ 08-12-2008 07:11 PM - 0 replies
▫ Determing Battery Voltage for cathode bias ▫ 08-12-2008 04:30 PM - 8 replies
▫ OT for audio but still tube ▫ 08-12-2008 02:23 PM - 1 reply
▫ Getting transfer characteristics ▫ 08-12-2008 02:16 PM - 1 reply
▫ Pentodes and Choke Loading ▫ 08-12-2008 12:35 PM - 8 replies
▫ Stepped airgap choke ? ▫ 08-11-2008 04:57 PM - 7 replies
▫ Noob question ▫ 08-11-2008 03:13 PM - 6 replies
▫ SE 300B Integrated Amp: Help choose circuit design ▫ 08-11-2008 12:49 PM - 2 replies
▫ SunAudio 2A3 to 300B ▫ 08-11-2008 04:47 AM - 13 replies
▫ Filament Snubber Cap Explodes! What happened? ▫ 08-10-2008 11:06 PM - 11 replies
▫ Alot of 12AX7's about ▫ 08-10-2008 12:06 PM - 84 replies
▫ DIY tube microphone preamp ▫ 08-10-2008 06:36 AM - 11 replies
▫ Tube tester and PSUD II questions ▫ 08-10-2008 03:25 AM - 6 replies
▫ Wurlitzer/Fisher Amp Musings ▫ 08-10-2008 01:07 AM - 2 replies
▫ please check my work ▫ 08-09-2008 11:08 PM - 10 replies
▫ How to get cathode bias info from grid bias info? ▫ 08-09-2008 06:08 PM - 8 replies
▫ SE 300B Integrated Amp: Transformers ▫ 08-09-2008 12:02 PM - 28 replies
▫ Positive feedback, improperly drawn screen, or WTF? ▫ 08-09-2008 11:33 AM - 3 replies
▫ GE Console RC 7100 A - need some help! ▫ 08-09-2008 04:21 AM - 22 replies
▫ Output tube for 600V B+, 5800 ohm primary PP, tertiary 25% UL taps? ▫ 08-08-2008 05:42 PM - 7 replies
▫ Still tring to find a couple 100uf motor runs ▫ 08-08-2008 03:44 PM - 16 replies
▫ small push-pull amp to preamp ▫ 08-08-2008 02:39 PM - 9 replies
▫ OpAmp Swap? ▫ 08-08-2008 06:10 AM - 5 replies
▫ Electraprint EL84 PP with PSA-2N ▫ 08-08-2008 06:10 AM - 8 replies
▫ Bogen MX-60A- output transformer bandwidth? ▫ 08-08-2008 12:04 AM - 3 replies
▫ 6AS7 Parallel Feed Amp ▫ 08-07-2008 03:45 PM - 7 replies
▫ PSpice model of output transformer ▫ 08-07-2008 03:13 PM - 4 replies
▫ simple guitar push pull amp ▫ 08-07-2008 02:50 PM - 8 replies
▫ Siemens capacitor ▫ 08-07-2008 10:12 AM - 2 replies
▫ Super 6BG6 vs. 6550 ▫ 08-07-2008 05:03 AM - 13 replies
▫ 5687 line stage ▫ 08-07-2008 02:21 AM - 35 replies
▫ Audio Standards ▫ 08-07-2008 01:23 AM - 4 replies
▫ 4 x used 5867A (TB3/750) triodes ▫ 08-07-2008 01:05 AM - 9 replies
▫ 12au7 who has the best ultra low noise ??? ▫ 08-06-2008 11:50 PM - 3 replies
▫ Questions about tweaking the Miniblok SET... ▫ 08-06-2008 02:49 PM - 11 replies
▫ The core -sonic reasons ▫ 08-06-2008 02:41 PM - 37 replies
▫ Removing pot from valve pre amp ▫ 08-06-2008 11:24 AM - 9 replies
▫ Power transformer question ▫ 08-06-2008 05:39 AM - 4 replies
▫ Beginners Guitar amp project, any suggestions? ▫ 08-06-2008 05:23 AM - 19 replies
▫ Tube construction materials ▫ 08-06-2008 03:39 AM - 20 replies
▫ LTP second grid ▫ 08-06-2008 01:52 AM - 9 replies
▫ How to figure out the bias point of fisher X-100A ▫ 08-05-2008 08:41 PM - 10 replies
▫ Schematic help! (Bell) ▫ 08-05-2008 08:30 PM - 3 replies
▫ Audio Note Soro SE SCHEMATICS ▫ 08-05-2008 12:53 PM - 0 replies
▫ 807 Tube Trode Connected ▫ 08-05-2008 06:08 AM - 5 replies
▫ Would you pls help. ▫ 08-05-2008 03:56 AM - 5 replies
▫ came across this nice 200W tube amp schematic ▫ 08-05-2008 02:35 AM - 7 replies
▫ Anyone seen this amp topology before? ▫ 08-05-2008 02:28 AM - 14 replies
▫ Max. grid resistance ▫ 08-04-2008 04:45 PM - 7 replies
▫ Yaqin mc10l "popping" ▫ 08-04-2008 03:46 PM - 5 replies
▫ Audio Electronics Supply ▫ 08-04-2008 03:55 AM - 2 replies
▫ Alamo Fury 2566 ▫ 08-04-2008 03:18 AM - 0 replies
▫ My friends in the USA - tube stores in LA ▫ 08-03-2008 10:50 PM - 3 replies
▫ Can this marraige work? ▫ 08-03-2008 09:09 PM - 0 replies
▫ RJM with 12AY7 ▫ 08-03-2008 07:26 PM - 27 replies
▫ Bias winding to power sand ▫ 08-03-2008 06:05 PM - 2 replies
▫ FM Tube radio design ▫ 08-03-2008 01:25 PM - 12 replies
▫ What do you use? Not technical but relative. ▫ 08-03-2008 10:26 AM - 11 replies
▫ looking for a pre-amp schematic ▫ 08-03-2008 08:37 AM - 3 replies
▫ I have waay too many 6DJ8's ▫ 08-03-2008 06:41 AM - 26 replies
▫ Tango NP126 ▫ 08-03-2008 02:18 AM - 0 replies
▫ Two 6J5 versus one 6SN7 ▫ 08-03-2008 01:39 AM - 11 replies
▫ Bunch of questions regarding plate CCS and some else. ▫ 08-02-2008 05:08 PM - 12 replies
▫ Tube Store in Washington DC (6C33C Triode Buy Where??) ▫ 08-02-2008 02:13 PM - 14 replies
▫ Scott 399 Receiver Schematics? ▫ 08-02-2008 04:55 AM - 2 replies
|
|
