Mic Kaczmarczik’s Tube Information
This directory contains USENET articles Mic has saved about guitars, equipment, pickup, techniques, players, and so on. Mic has graciously granted permission to post the stuff on the JT30 page on the off chance that it might be useful in the context of Blues Harmonica. Mic is not responsible for the content, just the collection. He must have quite alot of free time.
| 12AX7-Comparisons | 26-Mar-1998 15:31 2k |
| 12AX7-gain-test | 26-Mar-1995 14:37 2k |
| 12AX7-vs-12AT7 | 20-Aug-1995 09:53 3k |
| 12AX7-vs-5751 | 19-Aug-1995 20:34 1k |
| 12AX7-vs-7025 | 27-Aug-1994 09:01 2k |
| 5881-in-Deluxe | 20-Dec-1994 11:19 3k |
| 5881=6L6GB | 20-Nov-1994 09:58 3k |
| 5AR4-Typing | 01-Mar-1996 16:52 3k |
| 5AR4-data | 14-Dec-1995 11:50 14k |
| 5V4-for-5AR4 | 06-Apr-1996 14:18 1k |
| 62-Twin-Speakers | 17-Dec-1995 17:15 3k |
| 6550s-in-Twin | 03-Sep-1996 09:41 2k |
| 6EY6 | 09-Jan-1997 10:39 1k |
| 6EY6-Characteristics | 21-May-1997 16:43 1k |
| 6EY6-close-to-6V6 | 05-Jan-1997 22:03 1k |
| 6EY6-rating-vs-6V6 | 03-Dec-1997 20:24 2k |
| 6L6-GC-meaning | 28-May-1995 10:32 1k |
| 6L6-Taste-Tests | 31-Jul-1999 10:39 11k |
| 6L6-Types | 20-Jan-1996 15:41 3k |
| 6L6GC-ID | 27-Aug-1998 09:02 2k |
| 6L6WGB-vs-7581 | 12-May-1997 10:22 6k |
| 6MB8-tube-specs | 30-Jan-1995 10:35 1k |
| 6V6-6L6-swaps | 14-Jan-1997 10:42 3k |
| 6V6-NOS-vs-Sovtek | 27-Sep-1996 15:27 2k |
| 6V6-Ratings | 29-Jul-1996 10:38 4k |
| 6V6-Russian-RCA-Copies | 29-Jan-1999 12:36 2k |
| 6V6-Types | 07-Nov-1998 10:50 3k |
| 6V6-duty-cycle | 25-Nov-1995 00:12 4k |
| 6V6-to-EL84-Cathode-..> | 08-Nov-1998 11:37 3k |
| 6V6=7408 | 09-Jul-1996 01:03 1k |
| 6V6EH-Taste-Test | 21-Dec-1999 13:14 13k |
| 6V6EH-vs-RCA-Blackpl..> | 19-Apr-2000 14:02 1k |
| 6V6GT-Types | 09-Feb-1999 16:20 2k |
| 6V6GT-vs-GTA | 19-Aug-1995 00:08 2k |
| 6V6s-in-6L6-amps | 27-Mar-1996 13:32 6k |
| 7408-info | 05-Jun-1997 11:39 2k |
| 7581A-tubes | 19-May-1995 22:39 1k |
| 7868-equivalents | 05-Oct-1996 13:16 1k |
| Amperex-history | 16-Mar-1997 02:10 3k |
| Best-6V6 | 27-Aug-1998 09:00 2k |
| Blue-Glow-Sylvania | 18-Jan-1998 10:20 3k |
| Breaking-in-Tubes | 18-Jun-1995 09:45 2k |
| Breathe-on-tubes | 24-Aug-1995 15:02 1k |
| Brimar-Special-Quality | 17-Oct-1996 11:57 3k |
| CEI-6V6GTs | 23-Oct-1998 09:22 1k |
| Chinese-12AT7s | 01-Dec-1995 10:37 2k |
| Chinese-6V6GTBC | 12-Sep-1995 22:45 2k |
| Design-Max-Rating | 31-Dec-1995 10:52 2k |
| EL34-coding-explained | 06-Apr-1995 10:09 2k |
| Euro-Tube-Code | 23-Jan-1997 00:04 11k |
| Fingerprints | 21-Jan-1996 19:55 3k |
| Fuzzy-Cathodes | 18-Jun-1997 17:24 4k |
| GE-and-Sylvania | 26-Aug-1995 22:14 1k |
| GZ34-Varieties | 20-Jan-1998 23:06 2k |
| GZ34-types | 13-May-1998 15:19 2k |
| GZ37-vs-5U4 | 03-Apr-1997 12:42 1k |
| Groove-Tubes | 01-Oct-1994 00:22 3k |
| Groove-Tubes-6V6HD | 27-Nov-1994 17:04 6k |
| Groove-Tubes-testing | 23-Sep-1998 09:11 7k |
| How-Are-Tubes-Made | 10-Mar-1997 22:11 3k |
| Hytron-tubes | 18-Oct-1996 10:02 2k |
| ID-Tube-Makers | 17-Dec-1997 12:44 3k |
| Identify-Tube-Makers | 31-Jan-1997 20:48 6k |
| Is-Tube-Matching-Needed | 14-Oct-1994 11:17 3k |
| LV-Visseaux-6V6-Warning | 30-Apr-1999 09:18 2k |
| M.O.Valve-Gold-Lion | 30-Apr-1997 19:26 2k |
| Making-Tubes | 06-Sep-1997 10:11 4k |
| Mazda-History | 13-May-1998 13:50 5k |
| Metal-6V6s | 25-Jun-1995 09:53 3k |
| More-M.O.Valve-History | 06-May-1997 16:49 7k |
| New-US-6L6GCs | 21-Nov-1996 13:44 2k |
| No-More-Chinese-12AX7s | 17-Feb-1998 09:30 2k |
| Overvoltage-Effects | 10-Aug-1997 21:34 6k |
| Phillips-6L6GB-JAN | 13-Jun-1996 09:58 1k |
| Photon-Noise | 20-Jun-1998 11:27 4k |
| RTV-Tube-Damping | 19-Jan-1997 10:58 5k |
| Real-Mullard-GZ34s | 12-Jul-1996 20:46 3k |
| Relabeling | 23-Mar-1997 20:01 2k |
| Ruby-6V6GTBC | 19-Nov-1995 10:55 2k |
| SPICE-tube-models | 22-Aug-1995 09:25 1k |
| SV-6L6GC | 24-Oct-1996 20:41 1k |
| Sovtek-12AT7EH-5751-..> | 21-Sep-2000 10:14 6k |
| Sovtek-5881 | 31-Aug-1996 09:46 4k |
| Sovtek-5881-Confusion | 24-Sep-1996 13:15 2k |
| Sovtek-5881-data | 17-Apr-1996 00:57 7k |
| Sovtek-5881-for-7027 | 19-Sep-1995 11:35 2k |
| Sovtek-5881-specs | 03-Nov-1995 11:01 3k |
| Sovtek-5881WXT | 24-Feb-1996 11:06 3k |
| Sovtek-6CA7-problems | 01-Jun-1995 00:00 4k |
| Sovtek-6L6WXT+ | 11-Aug-1998 10:49 2k |
| Sovtek-Midget | 28-Jul-1995 15:31 2k |
| Sovtek-Online | 03-Jun-1996 00:14 1k |
| Sovtek-Tube-specs | 08-Aug-1995 11:34 3k |
| Sovtek-page | 24-May-1995 17:47 1k |
| Standby-Switches | 02-Oct-1999 13:55 4k |
| Svetlana-6550s | 07-Nov-1995 11:01 4k |
| Svetlana-6L6GC | 26-Oct-1996 00:18 2k |
| Svetlana-7591A | 28-Oct-1996 20:13 1k |
| Svetlana-EL34-review | 16-May-1996 10:18 6k |
| Telefunken-Tubes | 16-Oct-1994 09:36 1k |
| Telefunken-placement | 08-Dec-1995 12:47 1k |
| Tesla-12AX7 | 18-Feb-1998 11:07 2k |
| Tesla-6L6GC | 21-Oct-1996 00:50 1k |
| Tomorrows-tubes | 31-Aug-1995 22:03 9k |
| Tube-Amp-Books | 17-Feb-1995 12:10 3k |
| Tube-Amp-FAQ-Feb-96 | 01-Mar-1996 18:51 65k |
| Tube-Chickens | 24-Apr-1997 12:20 5k |
| Tube-Curve-Tracers | 12-Apr-1996 20:36 1k |
| Tube-Data-Page | 31-Jan-1998 23:44 1k |
| Tube-Data-Web-site | 03-Feb-1996 19:24 1k |
| Tube-Failures | 21-Mar-1996 12:58 2k |
| Tube-Manufacturers | 13-Dec-1997 00:31 7k |
| Tube-Mfgr-Codes | 17-Dec-1996 15:46 3k |
| Tube-Naming-Explained | 30-May-1995 22:42 5k |
| Tube-Relabeling | 07-Nov-1998 18:47 4k |
| Tube-Stability | 12-Aug-1999 11:45 2k |
| Tube-amp-books | 12-May-1995 12:40 10k |
| Tube-gas-avalanche | 26-Jun-1995 21:11 2k |
| Tube-heating-effects | 24-Mar-1994 12:37 4k |
| Tube-mismatch-harmonics | 26-Aug-1995 22:23 5k |
| Tube-rejuvenation | 18-Apr-1996 12:11 2k |
| Tube-types | 13-Aug-1994 16:19 5k |
| Tubes-vs-SS | 07-Jul-1995 11:23 4k |
| Visseaux-6V6 | 06-Feb-1999 13:28 4k |
| Visseaux-6V6-Warning | 30-Apr-1999 13:27 7k |
| Vudu-Tube-Replacement | 01-Sep-1995 08:14 1k |
| What-Does-6L6GC-Mean | 12-Apr-1999 10:20 1k |
| What-is-5881 | 23-May-1997 20:53 9k |
| What-is-7027 | 31-Mar-1998 22:19 2k |
| Which-Rectifier | 25-Nov-1995 00:18 3k |
| Why-5V-rectifier-vs-..> | 23-Mar-1998 13:10 3k |
| Why-6.3V-Filaments | 19-Nov-1996 19:25 4k |
| Why-Tubes-Coated-Inside | 05-May-1998 08:53 5k |
| Worn-Out-GZ34s | 19-Sep-1998 15:35 2k |
| YA-tube-page | 28-Aug-1996 21:39 2k |
