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Total 13 documents matching your query.

1. [AMPS] Tetrode Amp Help (score: 1): Author: bipi@worldnet.att.net (Leigh); Date: Wed, 08 Dec 1999 16:42:47 -0800; Hello Amp People, I acquired a very nice home-brew amplifier recently and I am in the process of figuring out what I need to do to get it on the air. Unfortunately, it came with no documentation, ugh; /archives//html/Amps/1999-12/msg00059.html (9,722 bytes)
2. [AMPS] Tetrode Amp Help (score: 1): Author: w1nr@eecorp.com (Michael McCarthy, W1NR); Date: Thu, 09 Dec 1999 00:41:44 -0500; Here are a couple of sources you may find at the library: Radio Handbook, 22nd Edition, 1981 page 22.52-22.61 has something that may be very close. It uses a directly grounded screen that floats the; /archives//html/Amps/1999-12/msg00062.html (12,049 bytes)
3. [AMPS] Tetrode Amp Help (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 9 Dec 1999 08:53:27 +0000; The Eimac advice assumes that you are not using a regulated screen supply, only a "dumb" bleed resistor - but for good linearity and tube protection you MUST regulate the screen voltage closely. When; /archives//html/Amps/1999-12/msg00065.html (9,795 bytes)
4. SV: [AMPS] Tetrode Amp Help (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Thu, 09 Dec 1999 12:27:09 +0000; Hej! Do you really need a stabilized screen grid supply? If the g2 voltage follows relatively slowly the envelope of a SSB signal, you should get a only a slow gain variation in the tube??? You have; /archives//html/Amps/1999-12/msg00066.html (11,405 bytes)
5. SV: [AMPS] Tetrode Amp Help (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 9 Dec 1999 07:34:46 -0700; ? On page four of Eimac's specification it says that the screen voltage must be maintained constant. ? Not slow. Anode current increases exponentially with increasing screen potential. ? Why? One is; /archives//html/Amps/1999-12/msg00070.html (9,387 bytes)
6. [AMPS] Tetrode Amp Help (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 9 Dec 1999 07:34:45 -0700; ? Eimac 8660 specification sheet dated 6-1-1967, page 4, "The screen voltage must be maintained constant... ...". ' ? Typical screen current is stated to be Negative 14mA. cheers, Ian. - Rich..., 80; /archives//html/Amps/1999-12/msg00071.html (10,111 bytes)
7. [AMPS] Tetrode Amp Help (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 9 Dec 1999 07:34:43 -0700; See Figure 10 on my Web site. ? The 8660/4CX1500B has a 12w-rated screen but it requires very little in the way of screen current. In fact, it generates about 14mA of screen current in Class AB1 ope; /archives//html/Amps/1999-12/msg00072.html (11,957 bytes)
8. [AMPS] Tetrode Amp Help (score: 1): Author: mike@g0mjw.freeserve.co.uk (G0MJW); Date: Fri, 10 Dec 1999 08:26:49 -0000; Do you really need a stabilized screen grid supply? If the g2 voltage follows relatively slowly the envelope of a SSB signal, you should get a only a slow gain variation in the tube??? You have then; /archives//html/Amps/1999-12/msg00081.html (9,130 bytes)
9. SV: [AMPS] Tetrode Amp Help (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 9 Dec 1999 20:30:57 +0000; Rich has answered most of your points. I don't remember any drive-variable screen voltage feature in the NAGs that came into this country. Using an IC-202, you must have been one of the few people on; /archives//html/Amps/1999-12/msg00082.html (9,874 bytes)
10. [AMPS] Tetrode Amp Help (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 9 Dec 1999 20:24:16 +0000; The advice that Leigh was quoting comes from Care & Feeding, Section 2.2, which doesn't recognise the need for shunt-regulated screen supplies. Yet another major area for revision... but don't get m; /archives//html/Amps/1999-12/msg00083.html (11,376 bytes)
11. [AMPS] Tetrode Amp Help (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 10 Dec 1999 03:20:43 -0700; ? yes. ? Does screen current exist without drive? This is hardly a logical method to cut the tube off, Ian. Tis easier to switch grid bias. Ordinary relays are more suitable for switching 90vdc than; /archives//html/Amps/1999-12/msg00085.html (10,977 bytes)
12. [AMPS] Tetrode Amp Help (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 10 Dec 1999 03:20:45 -0700; ? The grid of the 4CX350A has a rating of 2mA Max. G-G service with this tube is Bananas. ........ - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.h; /archives//html/Amps/1999-12/msg00086.html (9,494 bytes)
13. [AMPS] Tetrode Amp Help (score: 1): Author: bipi@worldnet.att.net (Leigh); Date: Fri, 10 Dec 1999 21:37:35 -0800; I would like to acknowledge the following great people for all of the information that they have provided to me: George K6GT Colin K7FM Marv WC6W Mike W1NR Ian G3SEK Hans SM5KI Rich AG6K I have learn; /archives//html/Amps/1999-12/msg00103.html (9,716 bytes)

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