Audio Project Amplifier Speaker Loudspeaker Kit
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Tubes - Showing threads 2201 to 2400 of 12199 available
Dumb question about Twin Reverb speaker load01-18-2008 04:23 AM - 2 replies
Tone linestage idea01-18-2008 03:54 AM - 5 replies
SimpleSE amp: multiple taps with cathode feedback01-18-2008 02:59 AM - 27 replies
7W enough for 90dB speakers?01-18-2008 01:46 AM - 26 replies
Meaning of "hard to drive"01-17-2008 11:02 PM - 19 replies
Plate load resistor question01-17-2008 10:30 PM - 14 replies
BWD 216a power supply circuit needed, please help01-17-2008 09:21 PM - 1 reply
1st DIY project in a loooooong time01-17-2008 05:38 PM - 6 replies
Another AG9016 "addict"01-17-2008 02:59 PM - 3 replies
angela EL34 improvement and mods01-17-2008 09:02 AM - 3 replies
$120 battery powered tube amp on eBay??01-17-2008 07:38 AM - 34 replies
Help with 6AQ5 schematics01-17-2008 02:40 AM - 5 replies
5691 black base?01-17-2008 02:23 AM - 3 replies
DIY vacuum tubes!01-17-2008 01:02 AM - 1 reply
Replacing 5-pin DIN inputs on a Telefunken Radio? +weird speaker output?01-16-2008 10:03 PM - 8 replies
working out Z out for tube with IXYS IXP10M45S plate load01-16-2008 09:26 PM - 9 replies
Review of New S-5 K-16LS Kit01-16-2008 09:11 PM - 82 replies
Dumb question.01-16-2008 08:53 PM - 2 replies
Suggest KT88 Push-Pull schematics, please.01-16-2008 08:34 PM - 8 replies
AIKIDO: Main Thread???01-16-2008 06:50 PM - 3 replies
10Y/45 schematic wanted01-16-2008 04:43 PM - 1 reply
Dynaco ST-70 Kits Compaired FYI01-16-2008 01:32 PM - 0 replies
Mini amp using 12AU7's as power tubes?01-16-2008 12:18 PM - 3 replies
Quick question about star grounding01-16-2008 04:29 AM - 8 replies
3K or 5K OPT in EL35 SimpleSE?01-16-2008 04:26 AM - 2 replies
Bogen L60 schematic01-16-2008 02:41 AM - 2 replies
k-1201-16-2008 01:31 AM - 13 replies
Suggestion on tube for CCS01-16-2008 12:16 AM - 14 replies
Whats the model for this?01-15-2008 08:20 PM - 0 replies
ECL 82 schematic to suggest01-15-2008 06:46 PM - 5 replies
Stay tuned for the Pass F4 tube preamp01-15-2008 05:49 PM - 2 replies
Andrea Ciuffoli's KT88 PP01-15-2008 05:28 PM - 21 replies
Looking for comments on Welborne Labs PS10 reg. HT supply01-15-2008 12:35 PM - 10 replies
Thoughts and suggestions needed.01-15-2008 12:15 PM - 15 replies
PSU shunt capacitor selection01-15-2008 11:04 AM - 1 reply
Looking for comments in my first 300B project01-15-2008 06:06 AM - 7 replies
Transformer Coupling Questions01-15-2008 03:23 AM - 6 replies
ECL82 power supply question01-15-2008 03:11 AM - 26 replies
CGV-300B Amp Results...Fun.01-15-2008 12:39 AM - 5 replies
power transformer rating and tube current - SimpleSE01-14-2008 11:51 PM - 17 replies
Ping Drummerwill.01-14-2008 04:21 PM - 0 replies
Taking a Hammond 369BX filament winding to the limit?01-14-2008 04:12 PM - 3 replies
Using moter run caps in PSU.01-14-2008 01:04 PM - 10 replies
Need Help eliminating hum on a Aikido headphone amp01-14-2008 10:56 AM - 5 replies
Speaker connect: Speakon or banana01-14-2008 08:15 AM - 12 replies
50k or 100k output impedance.01-14-2008 06:07 AM - 5 replies
Need help remembering the name of a hybrid amplifier design book01-14-2008 12:51 AM - 0 replies
Measuring Output Impedance of Power Supply01-14-2008 12:27 AM - 18 replies
knob with long end for alpha pots01-13-2008 06:19 PM - 3 replies
IT tutorial n selection01-13-2008 11:45 AM - 2 replies
Anybody help identify these tubes01-13-2008 12:26 AM - 4 replies
CT wire -quick question01-12-2008 11:59 PM - 7 replies
New Amplifier01-12-2008 10:39 PM - 16 replies
Master Volume for Active Tube Crossover?01-12-2008 09:57 PM - 4 replies
Tube lifetime01-12-2008 06:34 PM - 4 replies
Raleigh Audio Preamp - somebody heard ?01-12-2008 10:47 AM - 4 replies
Mikael Abdellah SE KT88 ideas and questions01-12-2008 09:33 AM - 6 replies
Masco MA-8 for guitar01-12-2008 08:48 AM - 0 replies
Bogen CHB-35 to conversion to B-12/B-1501-12-2008 08:48 AM - 0 replies
Melos triode 200+ looking for spare parts01-12-2008 06:00 AM - 16 replies
Opinions on integrated amp project01-12-2008 01:51 AM - 15 replies
6AL5 for clipping diodes?01-12-2008 12:56 AM - 3 replies
Confusion over Knight 600 tester numbers01-12-2008 12:54 AM - 4 replies
12AU7A: I need fuzz, overdrive and distortion schematic01-12-2008 12:34 AM - 1 reply
12AT7 vs 12AU7 (interchangeable?)01-12-2008 12:19 AM - 5 replies
Angela Electronics - Customer Service01-11-2008 09:33 PM - 23 replies
PAS visits the naughty side of town (red lit)01-11-2008 06:05 PM - 16 replies
Summing at the LTPI01-11-2008 03:52 PM - 2 replies
Test of ECC81 to 8301-11-2008 01:31 PM - 1 reply
Polypropylene caps01-11-2008 12:50 PM - 19 replies
Was this already posted here? Handmade tubes video01-11-2008 03:24 AM - 6 replies
Twist dc filament wire?01-11-2008 01:12 AM - 4 replies
Power transformer: How Big?01-11-2008 12:59 AM - 13 replies
Heater supply options and to Vhk rating of 6X4 & 620301-10-2008 11:59 PM - 10 replies
Hickok TV-7A/U settings for 8417 tube?01-10-2008 10:04 PM - 2 replies
Hammond 125ESE and sections01-10-2008 07:41 PM - 0 replies
6P15P hybrid amp schema?01-10-2008 05:34 PM - 16 replies
Switching voltage converter for HV supply01-10-2008 02:56 PM - 7 replies
VT4C output transformer01-10-2008 02:40 PM - 6 replies
Sound Multiplex Amp01-10-2008 12:58 PM - 0 replies
Suggestions needed for improving Rogers Cadet II PP power amplifier01-10-2008 11:16 AM - 3 replies
Adjustable Line out off of Extra Speaker Jack01-10-2008 05:47 AM - 1 reply
Transcendere Audio01-10-2008 01:12 AM - 0 replies
Wrong capacitors!01-10-2008 12:32 AM - 1 reply
6LW6 operating points01-09-2008 11:33 PM - 6 replies
?? xmer specs for Scott LC 21 or 130 Preamp for rewind...01-09-2008 11:01 PM - 0 replies
Loctal 6SN7?01-09-2008 10:31 PM - 11 replies
peavey heritage vtx how can i make it clean?01-09-2008 09:06 PM - 4 replies
Need some help with simulation01-09-2008 07:54 PM - 4 replies
output tranny for 6AK601-09-2008 07:14 PM - 2 replies
What tubes for 7K6PP X-former01-09-2008 07:06 PM - 4 replies
Ham radio op makes his own triodes01-09-2008 03:18 PM - 0 replies
Newbie looking for some advice on mods and tubes for Cayin TA-3001-09-2008 07:45 AM - 0 replies
Power Transconductance Amp with Tubes, How?01-09-2008 06:28 AM - 26 replies
using the 6BX7 at low'ish current in Aikido01-09-2008 05:07 AM - 4 replies
What preamp should I build?01-09-2008 02:53 AM - 144 replies
Transformer hookup question.01-09-2008 12:49 AM - 8 replies
Home made vacuum tubes01-08-2008 10:36 PM - 1 reply
My New EL84 PP01-08-2008 10:27 PM - 17 replies
Hammond power transformer fillament rating01-08-2008 08:39 PM - 4 replies
Need help with a Russian Triode01-08-2008 07:02 PM - 12 replies
TRAFO NEEDED FOR EL84 pp01-08-2008 06:34 PM - 18 replies
Difference between 6JN6 (Berning output) and 6JB6 tubes?01-08-2008 04:35 PM - 1 reply
2A3 SE Amp01-08-2008 04:02 PM - 16 replies
Soldering tubes directly to PCB?01-08-2008 01:01 PM - 18 replies
pa amp distortion at low volume01-08-2008 03:09 AM - 2 replies
Transformer input for guitar01-08-2008 02:35 AM - 7 replies
Potted transformers01-07-2008 10:49 PM - 22 replies
if this can works...01-07-2008 10:38 PM - 4 replies
Differential scope probes?01-07-2008 05:42 PM - 10 replies
Fisher X100B Iron01-07-2008 04:29 PM - 3 replies
Solid state power suppy for CAT SL-101-07-2008 03:57 PM - 0 replies
Help with wiring a Hammond Power Transformer01-07-2008 10:52 AM - 3 replies
User manual for GTA SE-40 Tube Amp ?01-07-2008 06:58 AM - 2 replies
tube caps that fit.. anyone?01-07-2008 01:53 AM - 8 replies
Heater wires through conduit01-06-2008 07:46 PM - 5 replies
AB2 guitar amp design questions01-06-2008 06:49 PM - 12 replies
Wanted - Svet Sk4A bases01-06-2008 01:18 PM - 0 replies
AC Characteristics of Glow Tubes?01-06-2008 06:58 AM - 9 replies
Bargain Used Transformers: Where?01-06-2008 01:36 AM - 1 reply
Top cap tube users: pics of your amps?01-06-2008 12:21 AM - 30 replies
Question01-05-2008 02:38 PM - 3 replies
„New“ Pentode – measuring resistance between grids G2 and G3 – any idea?01-05-2008 02:22 PM - 5 replies
Audio Transformers 10101-05-2008 07:52 AM - 2 replies
Thinking about having a 211 SET amp built, anyone know of good schematics?01-05-2008 04:54 AM - 0 replies
4-65A Triode curves?01-05-2008 02:19 AM - 24 replies
Is This A Good Reliable Tube Tester?01-05-2008 01:34 AM - 11 replies
Tube projects01-05-2008 12:47 AM - 2 replies
Push-Pull Cathode Bias Resistors01-04-2008 10:02 PM - 5 replies
Opinion on 300B SETs01-04-2008 08:00 PM - 1 reply
Output transformer for a 6EM7 headphone amp01-04-2008 04:21 PM - 6 replies
So how tattered is your Morgan Jones?01-04-2008 03:35 PM - 8 replies
Friend wants to buy a nice tube preamp01-04-2008 12:17 PM - 8 replies
Large Oil Capacitors01-04-2008 11:31 AM - 23 replies
Too awesome for words01-04-2008 10:12 AM - 28 replies
M65 stereo preamp question01-04-2008 08:58 AM - 4 replies
nasty buzz in old 35EH5 amp01-04-2008 01:44 AM - 12 replies
6C33C tube stamp01-04-2008 01:01 AM - 4 replies
Question about VTV 6SN7 Schematic01-03-2008 05:48 PM - 6 replies
Simple Magic Eye Circuit Wanted01-03-2008 05:20 PM - 7 replies
Mute circuit on sonic frontier line one01-03-2008 01:20 PM - 1 reply
Data point software?01-03-2008 01:01 AM - 6 replies
MingDa MC-3R / icon audio la3 preamp mods01-02-2008 11:52 PM - 2 replies
Biasing01-02-2008 06:39 PM - 4 replies
Compactron characteristic curves?01-02-2008 06:15 PM - 16 replies
Analog Metric grounded grid preamp kit01-02-2008 01:33 PM - 6 replies
Possible group buy of Lundahl input/phase splitter transformers.01-02-2008 01:30 PM - 51 replies
Audio Measurements01-02-2008 12:41 PM - 13 replies
B/A 20-4 tube mono block??01-02-2008 07:36 AM - 0 replies
Strange find.. help ID?01-02-2008 05:22 AM - 10 replies
813 Thoughts01-02-2008 02:37 AM - 40 replies
External 12V heater supply conversion question01-02-2008 02:30 AM - 20 replies
My Latest Acquisition01-01-2008 05:08 PM - 22 replies
50/60/whatever cycle hum01-01-2008 12:27 PM - 11 replies
OEP input transformers. Anyone used ??01-01-2008 11:27 AM - 4 replies
Restack transformer from PP to SE12-31-2007 08:30 PM - 17 replies
Se 807??12-31-2007 05:43 PM - 1 reply
Min 9-pin or 7-pin sockets to fit octal-sized holes?12-31-2007 09:01 AM - 8 replies
Question about phono preamp schematic12-31-2007 01:41 AM - 11 replies
Lectron JH50 unknown parts?12-30-2007 06:17 PM - 1 reply
Fostex or Car Speakers for My Tube Car Amp12-30-2007 04:28 PM - 1 reply
schematics? (also some questions)12-30-2007 03:35 AM - 0 replies
Regulated Power Supply. Bipolar, JFET or MOS?12-30-2007 01:34 AM - 4 replies
UL to triode mode conversion on cathode bias amp-different cathode resistors needed?12-29-2007 08:08 PM - 6 replies
Blown up resistor in S-5 amp kit...12-29-2007 05:55 PM - 24 replies
EZ80 or 8112-29-2007 03:23 PM - 8 replies
Gun or Iron?12-29-2007 01:30 AM - 13 replies
Shanling SP-80C Problem - DC Spikes?!12-29-2007 12:07 AM - 7 replies
Silvertone Organ amp, weird osc section.12-28-2007 10:02 PM - 11 replies
Need some advice on a LTP input stage.12-28-2007 07:14 PM - 56 replies
CAT 110V to 220 V conversion12-28-2007 06:39 PM - 3 replies
When is a compactron not a compactron?12-28-2007 06:45 AM - 4 replies
Looking for big Ni lams12-28-2007 01:35 AM - 24 replies
Three PP KT88 designs. Which one ... (please;-)12-28-2007 12:32 AM - 28 replies
EAR 834P needing repair12-27-2007 10:23 PM - 12 replies
How to make non-polarized electrolytic cap?12-27-2007 09:20 PM - 6 replies
Toasted PW tranformer?12-27-2007 07:37 PM - 16 replies
Tube Cad from Glass-Ware questions12-27-2007 05:56 PM - 2 replies
U-links for earthing12-27-2007 05:43 PM - 0 replies
Supreme 45 tube amp12-27-2007 03:10 PM - 7 replies
Boxing Day Special12-27-2007 06:03 AM - 22 replies
Look what Santa brought!12-27-2007 03:13 AM - 30 replies
Soft Start for Tubes12-27-2007 02:55 AM - 4 replies
Need help to check out this preamp schematic.12-27-2007 12:23 AM - 7 replies
What dimensions for perforated AL sheet?12-26-2007 11:49 PM - 2 replies
NC pins on submin tubes12-26-2007 11:23 PM - 3 replies
Cheap alternative to EF8612-26-2007 10:23 PM - 29 replies
MOSFET follower driver oscillation12-26-2007 08:48 PM - 19 replies
Fender "Twin Reverb Amp" has no output.12-26-2007 05:49 PM - 5 replies
Hi-Fi system build12-26-2007 04:27 PM - 13 replies
Car Tube Amp12-26-2007 03:43 PM - 17 replies
Tube Identification12-26-2007 12:04 PM - 7 replies
Supratek schematics?12-26-2007 10:55 AM - 0 replies
Choice of OTL output capacitors12-25-2007 06:02 PM - 2 replies
Feedback scheme.12-25-2007 12:30 PM - 9 replies
Christmas Eve12-24-2007 08:30 PM - 33 replies
Best tubes for Scott 22212-24-2007 07:55 AM - 0 replies
HH Scott 222 speaker recommendations and upgrades12-24-2007 07:55 AM - 3 replies
mixing coupling cap types12-24-2007 02:51 AM - 1 reply
Transformer chassis layout12-24-2007 02:06 AM - 5 replies

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