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1. [Amps] Tube suggestion needed - 6 and/or 2M ~500W level with 800-1kv on plate? (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Sat, 21 Jun 2008 09:01:13 -0600; I've got old Dentron GLA-1000 sweep tube amp; mulling over what to do with it as I don't really need for HF. They are a convenient package size for ~500W class amp, so wondering if there are any tube; /archives//html/Amps/2008-06/msg00152.html (7,498 bytes)
2. Re: [Amps] Tube suggestion needed - 6 and/or 2M ~500W level with800-1kv on plate? (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Sat, 21 Jun 2008 13:15:04 -0600; To take it back to the original interest - can the GLA1000 in this case be used as a mule to build a portable tube-based 6M amp (2M was something of an afterthought when I made the posting) of middli; /archives//html/Amps/2008-06/msg00159.html (11,259 bytes)
3. Re: [Amps] Tube suggestion needed - 6 and/or 2M ~500W level with800-1kv on plate? (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Sat, 21 Jun 2008 16:40:00 -0600; Thanks, Joe - your suggestion about EL-509 lead me to another prospect - the GI7B triode. Looking at some data sheets, it appears to be characterized between 700 and 1.5kv on plate, and has 300W plat; /archives//html/Amps/2008-06/msg00163.html (14,548 bytes)
4. [Amps] Creating chimneys from silicone sheet (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Tue, 24 Jun 2008 06:24:26 -0600; I'd like to understand how one can make chimneys from silicone sheets, such as the chimneys in the Alpha 76. Is the following material suitable? http://www.smallparts.com/products/descriptions/899.CF; /archives//html/Amps/2008-06/msg00204.html (7,779 bytes)
5. Re: [Amps] Creating chimneys from silicone sheet (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Tue, 24 Jun 2008 07:03:55 -0600; Thanks, Harold -- what sort of cleaner/solvent would you suggest, and would any particular treatment or waiting time after cleaning be recommended to avoid cleaner residue interfering with action of; /archives//html/Amps/2008-06/msg00207.html (9,189 bytes)
6. [Amps] WTB - 4-1000 amp/project/parts/etc. can pick up locally - DALLAS TX area (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Sat, 9 Aug 2008 11:13:26 -0600; Looking for a 4-1000-based amateur HF (not CB or industrial) amp - project completed or not, homebrew or otherwise, parts/spares or what have you... Need not be complete nor working, but that would b; /archives//html/Amps/2008-08/msg00054.html (7,351 bytes)
7. [Amps] Use of toroids in tank circuit of tube amp? (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Sat, 6 Sep 2008 13:41:33 -0600; I'm looking for information on applying toroidal inductors in the plate tank circuit of a (large, 4-1000 based) tube HF amp. Are there special considerations in estimating core size and material type; /archives//html/Amps/2008-09/msg00030.html (6,982 bytes)
8. [Amps] Need DC curve characteristics for 4-1000A (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Thu, 11 Sep 2008 10:15:53 -0600; I'm in need of a set of characteristic curves for the 4-1000A that show relationship of grid, screen and plate voltage with current. Anyone have this information they could send along? Purpose is to; /archives//html/Amps/2008-09/msg00112.html (7,802 bytes)
9. Re: [Amps] Need DC curve characteristics for 4-1000A (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Thu, 11 Sep 2008 10:39:38 -0600; Thank you, that was what I was looking for.... _________________________________________________________________ See how Windows Mobile brings your life togetherat home, work, or on the go. http://cl; /archives//html/Amps/2008-09/msg00114.html (9,422 bytes)
10. [Amps] Slightly OT - Looking for source to replace the teflon/plastic dielectric used in Nye Viking MB-V-A padding capacitors (score: 1): Author: "David Feldman" <wb0gaz@hotmail.com>; Date: Sun, 15 Mar 2009 17:50:14 -0700; I know this is OT, but the amplifier was the cause of the probem, not the operator, I'm absolutely certain ;-) !! I'm repairing a MB-V-A tuner which had damage to one of the padding capacitors after; /archives//html/Amps/2009-03/msg00430.html (7,747 bytes)
11. [Amps] WTB - plate current meter from Alpha 374/76/78 series (score: 1): Author: david feldman <wb0gaz@hotmail.com>; Date: Thu, 10 Sep 2009 15:29:23 -0600; Looking for a used, functional plate current meter from this series amplifier; if you replaced yours with a new one at some point and have the old one and would like to sell it, please contact off-li; /archives//html/Amps/2009-09/msg00143.html (7,667 bytes)

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