| Tubes - Showing threads 1001 to 1200 of 11691 available |
▫ Motorola OPT ▫ 04-04-2008 07:50 PM - 0 replies
▫ Weird Input transformer hum. ▫ 04-04-2008 07:46 PM - 2 replies
▫ cascode vs asymmetrical cathode coupled ▫ 04-04-2008 02:08 PM - 47 replies
▫ music angel 845 SET ▫ 04-04-2008 02:08 PM - 5 replies
▫ Help! My amp stopped singing... ▫ 04-04-2008 10:48 AM - 20 replies
▫ LTP CCS IXYS with 10m45s opinions ▫ 04-04-2008 08:01 AM - 4 replies
▫ Boozhound Choke Tail Pair for HiFi ▫ 04-04-2008 02:04 AM - 0 replies
▫ Bass guitar amp... ▫ 04-04-2008 01:55 AM - 15 replies
▫ 5718 subminiture tube? ▫ 04-04-2008 12:40 AM - 11 replies
▫ Custom Headphone OPT ordered for the TubelabSE ▫ 04-03-2008 08:50 PM - 18 replies
▫ fixed bias for push pull tube amps ▫ 04-03-2008 03:15 PM - 4 replies
▫ EC86 and phono ▫ 04-03-2008 08:42 AM - 1 reply
▫ Power Transformer mystery lead.... ▫ 04-03-2008 03:26 AM - 2 replies
▫ Bias measurements 6L6 ▫ 04-03-2008 01:49 AM - 23 replies
▫ 0A3 Light ▫ 04-02-2008 11:46 PM - 16 replies
▫ Equivalent to Tango NC-10 IT ▫ 04-02-2008 11:28 PM - 5 replies
▫ Ammeter wiring? ▫ 04-02-2008 11:05 PM - 15 replies
▫ Highest Practical Primary Z in OPT? ▫ 04-02-2008 06:40 PM - 1 reply
▫ Ampex 6v6 PP Modifications ▫ 04-02-2008 05:33 PM - 20 replies
▫ Variability of RIAA eq with tube characteristics? ▫ 04-02-2008 04:59 PM - 21 replies
▫ 807/350B/6L6 PP amps PSU ? ▫ 04-02-2008 03:29 PM - 7 replies
▫ Need Help For Tube Amp ▫ 04-02-2008 12:24 PM - 6 replies
▫ ECC83 300B Loftin White amp ▫ 04-02-2008 11:08 AM - 1 reply
▫ Hashimoto and the wonderful 45 ▫ 04-02-2008 04:08 AM - 10 replies
▫ Capacitor identification–old PIO? ▫ 04-02-2008 02:02 AM - 2 replies
▫ Heathkit variac ▫ 04-02-2008 01:28 AM - 3 replies
▫ E80L pentode mode as driver? ▫ 04-01-2008 08:35 PM - 1 reply
▫ Transformer repair ▫ 04-01-2008 06:28 PM - 5 replies
▫ How many ga for chassis wire? ▫ 04-01-2008 09:31 AM - 2 replies
▫ I want to MOD - help? ▫ 04-01-2008 02:34 AM - 3 replies
▫ 807 Guitar Amplifier ▫ 04-01-2008 02:34 AM - 0 replies
▫ What About Beam Deflection Tubes? ▫ 04-01-2008 01:37 AM - 3 replies
▫ Capacitor ▫ 04-01-2008 01:03 AM - 3 replies
▫ Placement of Ultralinear Tap On Homemade Transformer ▫ 03-31-2008 07:43 PM - 11 replies
▫ Differential stage with CCS in cathode ▫ 03-31-2008 04:13 PM - 6 replies
▫ Directly heated Cathode/insulation question ▫ 03-31-2008 03:15 PM - 16 replies
▫ "Dirt Cheap SE" 6BM8 spud amp ▫ 03-31-2008 02:13 PM - 2 replies
▫ isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp ▫ 03-31-2008 02:06 PM - 7 replies
▫ Single-end Power amp with tubes ▫ 03-31-2008 01:39 PM - 3 replies
▫ Input pot question ▫ 03-31-2008 10:37 AM - 9 replies
▫ Need help putting 6Z4 into PSU Designer ▫ 03-31-2008 12:29 AM - 5 replies
▫ SimpleSE Under Chassis Mounting ▫ 03-30-2008 10:19 PM - 4 replies
▫ Bias methods? ▫ 03-30-2008 10:22 AM - 8 replies
▫ Aikido and SE KT88 ▫ 03-30-2008 10:15 AM - 10 replies
▫ Mystery tube in a Fisher FM-90X - V50,064 ▫ 03-30-2008 05:36 AM - 9 replies
▫ Built this pre amp today! ▫ 03-30-2008 05:36 AM - 3 replies
▫ Switch contacts for HV supply ▫ 03-30-2008 02:26 AM - 4 replies
▫ The First Sound Recording - we can hear it finally ▫ 03-30-2008 01:40 AM - 2 replies
▫ RCA made in Japan??????? ▫ 03-30-2008 12:56 AM - 2 replies
▫ 6V6GT in the SimpleSE ▫ 03-29-2008 11:04 PM - 10 replies
▫ trimmings for amp project ▫ 03-29-2008 10:56 PM - 11 replies
▫ Tube Preamp Hybrid new builder, lots of question! ▫ 03-29-2008 08:30 PM - 5 replies
▫ Chinese mini bias pots ▫ 03-29-2008 04:27 PM - 2 replies
▫ GU-50, GM70 and KT88 ▫ 03-29-2008 04:14 PM - 17 replies
▫ Please recommend me an amplifier design. ▫ 03-29-2008 02:26 PM - 47 replies
▫ Single-ended OR push-pull? ▫ 03-29-2008 11:55 AM - 48 replies
▫ Darling in Europe... (110 vs. 220) ▫ 03-29-2008 10:06 AM - 12 replies
▫ DC heater (+/-) -> elevated? ▫ 03-29-2008 08:31 AM - 3 replies
▫ Tubelab simple SE help needed...working but only on one channel ▫ 03-29-2008 08:17 AM - 11 replies
▫ Yaqin MS-300B SET amp ▫ 03-29-2008 05:48 AM - 16 replies
▫ 300b calibration (tubelab) ▫ 03-29-2008 02:43 AM - 3 replies
▫ Sonics of a "dynamic coupled" driver ▫ 03-28-2008 11:18 PM - 1 reply
▫ 716p's Vs. Fancy Caps ▫ 03-28-2008 10:35 PM - 3 replies
▫ ELL80 ▫ 03-28-2008 07:33 PM - 15 replies
▫ Will this work? ▫ 03-28-2008 07:08 PM - 11 replies
▫ What circuit to build with MQ TL-404 ▫ 03-28-2008 07:07 PM - 3 replies
▫ Very low output from Knight KN928 amp ▫ 03-28-2008 07:05 PM - 114 replies
▫ 6GK5 to drive a 6AS7? ▫ 03-28-2008 10:45 AM - 7 replies
▫ Plate Heater Dissipators ▫ 03-28-2008 08:05 AM - 1 reply
▫ preamp suitable for Dynaco st-70- OTHER than dynaco ▫ 03-28-2008 12:43 AM - 2 replies
▫ 'EL34 World' website for music amps ▫ 03-27-2008 11:51 PM - 0 replies
▫ Strange Russian(?) tube tester ▫ 03-27-2008 07:51 PM - 6 replies
▫ is this possible? ▫ 03-27-2008 03:51 PM - 9 replies
▫ Power transformer impedance ▫ 03-27-2008 01:22 PM - 2 replies
▫ Anybody did compared tube vs opamp for preamp ? ▫ 03-27-2008 05:46 AM - 0 replies
▫ The days of wine, roses & WE205D ▫ 03-27-2008 04:48 AM - 13 replies
▫ I need to ask... ▫ 03-27-2008 03:38 AM - 5 replies
▫ SPICE model for 6AK5 wanted! ▫ 03-27-2008 03:34 AM - 1 reply
▫ Differences with 6C33 Tube Types ▫ 03-27-2008 02:11 AM - 4 replies
▫ mugen hybride ▫ 03-26-2008 11:35 PM - 2 replies
▫ 1st Build - Kit or No Kit ▫ 03-26-2008 10:12 PM - 29 replies
▫ feedback problems ▫ 03-26-2008 10:08 PM - 11 replies
▫ Antique Electric Supply ▫ 03-26-2008 07:34 PM - 14 replies
▫ Highs ▫ 03-26-2008 02:53 PM - 8 replies
▫ ELK bass amp, mono, twin OPT's (?) ▫ 03-26-2008 02:39 PM - 0 replies
▫ Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP? ▫ 03-26-2008 01:11 PM - 1 reply
▫ Suggestions on books ▫ 03-26-2008 12:39 PM - 6 replies
▫ Cathode stripping in low voltage tubes ▫ 03-26-2008 12:36 PM - 1 reply
▫ Current to overcome 6.5 uuF input capacitance? ▫ 03-26-2008 05:38 AM - 18 replies
▫ Help me to work on the damping factor of my 845 SET ▫ 03-26-2008 12:15 AM - 16 replies
▫ Y A A B - Yet Another Aikido Build ▫ 03-25-2008 11:25 PM - 138 replies
▫ Music Angel - Help wanted ▫ 03-25-2008 07:47 PM - 6 replies
▫ Calculating PS current for octal Aikido ▫ 03-25-2008 12:37 PM - 4 replies
▫ X-10d ▫ 03-25-2008 10:58 AM - 1 reply
▫ wirewound vs standard pots ▫ 03-25-2008 03:49 AM - 2 replies
▫ Anyone famaliar with the 485 tube? ▫ 03-25-2008 02:45 AM - 0 replies
▫ Ideas for ground plane/shielding? ▫ 03-25-2008 02:16 AM - 7 replies
▫ TESLA E88CC 6922 Tubes shorting out??????? ▫ 03-25-2008 01:44 AM - 10 replies
▫ Will My Ipod Benefit Through a Tube Amp? ▫ 03-25-2008 01:28 AM - 14 replies
▫ PSU for testing circuits ▫ 03-24-2008 11:26 PM - 8 replies
▫ easier way to cut a square hole for xmfr ▫ 03-24-2008 10:29 PM - 14 replies
▫ Combine left & right for sub ▫ 03-24-2008 09:43 PM - 6 replies
▫ Noisy Squeal from SE amp ▫ 03-24-2008 09:16 PM - 10 replies
▫ Plate Choke calculation ▫ 03-24-2008 09:14 PM - 7 replies
▫ Audio Cable Deathmatch! ▫ 03-24-2008 08:34 PM - 16 replies
▫ tubelab PP? ▫ 03-24-2008 07:48 PM - 9 replies
▫ replacing op-amps with thermionic valves ▫ 03-24-2008 07:02 PM - 2 replies
▫ aikido heater ▫ 03-24-2008 06:57 PM - 23 replies
▫ Heathkit W 5M output transformers ▫ 03-24-2008 03:17 PM - 4 replies
▫ 6S19 Circlotron (OTL) ▫ 03-24-2008 11:23 AM - 57 replies
▫ Quality of Hammond 1600 series transformers and a question about loading. ▫ 03-24-2008 05:50 AM - 2 replies
▫ Kuei Yang Wang's 6sn7 linestage ▫ 03-24-2008 02:45 AM - 4 replies
▫ Laney TF-200 speaker farts out... ▫ 03-23-2008 10:17 PM - 6 replies
▫ E-mu 0202 + audiotester ▫ 03-23-2008 02:06 PM - 18 replies
▫ Where to buy HT toroids ? ▫ 03-23-2008 07:28 AM - 15 replies
▫ CJ 1.4: Power tubes are working but drivers not ! Help please. ▫ 03-22-2008 11:47 PM - 4 replies
▫ A 6SN7 direct coupled preamp & regulated supply for everyone's perusal. ▫ 03-22-2008 09:58 PM - 22 replies
▫ Slight hum from my new soldering station. ▫ 03-22-2008 07:55 PM - 1 reply
▫ phono stage ▫ 03-22-2008 06:25 PM - 20 replies
▫ 6sn7gtb problem ▫ 03-22-2008 04:02 PM - 5 replies
▫ The old man told me to get it all out of the basement ▫ 03-22-2008 03:15 PM - 32 replies
▫ The Look of Preamp Hum ▫ 03-22-2008 03:10 PM - 1 reply
▫ hookup wire options ▫ 03-22-2008 02:00 PM - 20 replies
▫ Tubelab Simple Se Trannie Shopping List-a Newbie Seeks Info ▫ 03-22-2008 08:24 AM - 3 replies
▫ Testing Amplifiers / Pad ▫ 03-22-2008 12:04 AM - 2 replies
▫ Volume Pot vs Stepped Attenuater ▫ 03-22-2008 12:01 AM - 49 replies
▫ Which tubes should I use? ▫ 03-21-2008 09:23 PM - 22 replies
▫ KT88s and grid current ▫ 03-21-2008 06:31 PM - 3 replies
▫ Gain stage with g2-feedback. ▫ 03-21-2008 05:37 PM - 18 replies
▫ K-502 Left Channel is out ▫ 03-21-2008 03:41 PM - 3 replies
▫ 12B4 help needed ▫ 03-21-2008 11:15 AM - 30 replies
▫ Power Trans question ▫ 03-21-2008 07:40 AM - 9 replies
▫ Noob amp wiring question... ▫ 03-21-2008 06:50 AM - 5 replies
▫ 5842 - russian ripoff ▫ 03-20-2008 06:06 PM - 7 replies
▫ Ruskie tube questions ▫ 03-20-2008 04:39 PM - 4 replies
▫ Opt placement ▫ 03-20-2008 04:37 PM - 1 reply
▫ 807 AB2 oscillation maybe? ▫ 03-20-2008 10:47 AM - 27 replies
▫ Amazon Does DIY Parts ▫ 03-20-2008 12:59 AM - 6 replies
▫ Shielded wire ▫ 03-20-2008 12:52 AM - 7 replies
▫ Guitar amp(s) for nephews ▫ 03-19-2008 11:05 PM - 18 replies
▫ Questions about Tube Amplifiers, Mikael's vs SimpleSE ▫ 03-19-2008 06:25 PM - 6 replies
▫ duncan psu simulation vox ac30cc ▫ 03-19-2008 01:04 AM - 0 replies
▫ Where low noise resistors matter ▫ 03-19-2008 12:13 AM - 14 replies
▫ funky power supply ▫ 03-18-2008 11:01 PM - 10 replies
▫ Choke loaded PSU versus VR tube regulated PSU? ▫ 03-18-2008 06:33 PM - 37 replies
▫ What would most of you do? ▫ 03-18-2008 11:58 AM - 27 replies
▫ IRFBC20 as source follower drivers for EL34s in AB1 PP ▫ 03-18-2008 11:37 AM - 21 replies
▫ first post, PS for 6em7 SET amp ▫ 03-18-2008 04:17 AM - 4 replies
▫ affordable transformers for KT-88's ▫ 03-18-2008 02:14 AM - 6 replies
▫ Need help with schematic ▫ 03-18-2008 01:58 AM - 2 replies
▫ How many people here use simulators, like LTspice, to help design tube stuff? ▫ 03-18-2008 12:22 AM - 6 replies
▫ newbie question regarding gain reduction ▫ 03-17-2008 10:45 PM - 5 replies
▫ Anybody did try this tube preamp ? ▫ 03-17-2008 10:42 PM - 8 replies
▫ Heathkit UA-2 output tx wiring question ▫ 03-17-2008 07:49 PM - 2 replies
▫ Question about the properties of "matched" tubes ▫ 03-17-2008 06:08 PM - 8 replies
▫ Using a passive direct box to kill ground loop noise? ▫ 03-17-2008 05:06 PM - 10 replies
▫ magnetized power transformer! ▫ 03-17-2008 04:16 PM - 2 replies
▫ Utc A-24 ▫ 03-17-2008 12:59 PM - 2 replies
▫ lower cost options for spectrum analyser/ function generator? ▫ 03-17-2008 12:45 PM - 25 replies
▫ Need schematics for Val VP-110S Tube Amp ▫ 03-17-2008 12:42 PM - 5 replies
▫ So What now ▫ 03-17-2008 12:04 PM - 3 replies
▫ What other tubes can I use this OPT for? ▫ 03-17-2008 11:48 AM - 11 replies
▫ Super Junkbox 6S19P SET ▫ 03-17-2008 06:33 AM - 11 replies
▫ Grid stopper resistors ▫ 03-16-2008 11:41 PM - 2 replies
▫ 1959 Pilot AA-908 Amp into Guitar Amp ▫ 03-16-2008 10:58 PM - 6 replies
▫ Please evaluate my new EL34 Amp (waveform attached) ▫ 03-16-2008 10:42 PM - 4 replies
▫ Max voltages for EL84? ▫ 03-16-2008 09:14 PM - 4 replies
▫ Tubelab SE finished but need help. ▫ 03-16-2008 06:40 PM - 50 replies
▫ Oscilloscope Probes for Tube Work ▫ 03-16-2008 05:41 PM - 2 replies
▫ ECC88 vs 6SN7 ▫ 03-16-2008 04:55 PM - 13 replies
▫ Good (tube) audio shows in the US? ▫ 03-16-2008 04:11 PM - 0 replies
▫ Please help me de-hum my new pre ▫ 03-16-2008 03:01 PM - 9 replies
▫ Help for newbie ▫ 03-16-2008 01:51 PM - 9 replies
▫ Simple ReAmp Mod? Help with Input Impedances, Please! ▫ 03-16-2008 02:12 AM - 7 replies
▫ Which of these two phono stages ▫ 03-16-2008 01:10 AM - 15 replies
▫ Crosley radio ▫ 03-15-2008 11:41 PM - 16 replies
▫ Small tube amp for headphones/computer speakers?(first post) ▫ 03-15-2008 11:10 PM - 5 replies
▫ Peculiar Fisher circuit ▫ 03-15-2008 08:39 PM - 9 replies
▫ Hum in Grounded Grid Pre ▫ 03-15-2008 03:45 PM - 4 replies
▫ Counterpoint SA-1000 ▫ 03-15-2008 02:46 PM - 3 replies
▫ K-502 How to select a potentiometer ▫ 03-15-2008 07:37 AM - 1 reply
▫ What are these Christmas light things? ▫ 03-15-2008 03:42 AM - 11 replies
▫ a CHEAP integrated tube amp kit-anybody? ▫ 03-15-2008 02:22 AM - 0 replies
▫ My amp is acting like a transducer!? ▫ 03-15-2008 01:55 AM - 9 replies
▫ Transformer current question ▫ 03-14-2008 11:40 PM - 6 replies
▫ Brimar date codes? ▫ 03-14-2008 10:45 PM - 0 replies
▫ Home made SE 300B amp ▫ 03-14-2008 09:54 PM - 12 replies
▫ Parallel Push Pull 6AS7 or 6080 ▫ 03-14-2008 06:16 PM - 29 replies
▫ random crackle ? (McMartin MA-20) ▫ 03-14-2008 05:22 PM - 3 replies
▫ KT88 filament failure - twice on same socket ▫ 03-14-2008 03:37 PM - 8 replies
▫ Solid State Regulator for tube amp ▫ 03-14-2008 02:06 PM - 43 replies
▫ Proposed screen-drive amp design... comments, please? ▫ 03-14-2008 01:58 PM - 36 replies
▫ SimpleSE PCB out of stock ▫ 03-14-2008 02:43 AM - 26 replies
▫ terraplane 300B ▫ 03-13-2008 09:07 PM - 6 replies
▫ Any good explanation of Passive EQ Filters?? ▫ 03-13-2008 09:07 PM - 4 replies
▫ Sun Audio transformers ▫ 03-13-2008 08:20 PM - 7 replies
▫ Vacuum State RTP5. ▫ 03-13-2008 07:52 PM - 4 replies
▫ Schematics for Audio Innovations s1000 pre ▫ 03-13-2008 03:34 PM - 0 replies
▫ Tube amp for newbye ▫ 03-13-2008 03:34 PM - 11 replies
▫ 3C24SE amp... ▫ 03-13-2008 02:45 PM - 10 replies
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