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Total 13 documents matching your query.

1. [AMPS] Alpha 77 amps (score: 1): Author: ab4ru@stc.net (Ron Hooper); Date: Sat, 02 Aug 1997 18:27:01 +0100; Hello All, Thanks for the input on the Alpha's. I am going to purchase a 77d, which is a large case, like the DX. From what I have gathered from the reflector, the DX is a newer model and has provisi; /archives//html/Amps/1997-08/msg00012.html (7,933 bytes)
2. [AMPS] Alpha 77 amps (score: 1): Author: measures@vc.net (Rich Measures); Date: Sat, 2 Aug 97 14:36:24 -0700; Adding the extra tube is relatively easy. Correcting the ramifications is not. The tank L needs to be decreased for each tap. There isn't enough tune C to make it work with a Q of greater than 6 on; /archives//html/Amps/1997-08/msg00013.html (9,727 bytes)
3. [AMPS] Alpha 77 amps (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Sat, 2 Aug 1997 20:13:19 +0000; To: <amps@contesting.com> <SNIP> Strange. I just looked at a bone stock tank two tube Alpha conversion and it worked just fine. Power output was good (about 4 kW) and harmonics were within reason. A; /archives//html/Amps/1997-08/msg00015.html (9,076 bytes)
4. [AMPS] Alpha 77 amps (score: 1): Author: measures@vc.net (Rich Measures); Date: Sat, 2 Aug 97 17:55:21 -0700; To: <amps@contesting.com> You thought period=1/frequency and frequency=1/period was strange In serious contesting service? .......With the stock tune-C and 2-holer conversion, the tank Q is under 6; /archives//html/Amps/1997-08/msg00016.html (10,098 bytes)
5. [AMPS] Alpha 77 amps (score: 1): Author: pgerba@crl.com (Peter Gerba); Date: Sat, 2 Aug 1997 23:37:16 -0700 (PDT); Rich; I own an Alpha 77 (not a D) and the bottom end of the Pi-L is 3Mhz. What's with 160 meters ? Did some 77s cover 160.. I thought the later "D" models did but not the 77 ? Peter Gerba pgerba@crl.; /archives//html/Amps/1997-08/msg00018.html (11,340 bytes)
6. [AMPS] Alpha 77 amps (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Sun, 03 Aug 1997 04:54:50 -0500; You are correct, Peter. Only the Alpha 77DX and SX's have 160 meter capability, and it was an afterthought to say the least. added, Actually, it was the original Peter Dahl 50 mfd @ 5kv replacement c; /archives//html/Amps/1997-08/msg00019.html (11,441 bytes)
7. [AMPS] Alpha 77 amps (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Sun, 3 Aug 1997 11:04:42 +0000; To: <amps@contesting.com> Only your use of it in defining "coherent", and calling square waves "incoherent". I measured it here and it was about 4 kW. It tuned properly and had -47dB second harmonic; /archives//html/Amps/1997-08/msg00020.html (11,608 bytes)
8. [AMPS] Alpha 77 amps (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 3 Aug 97 11:09:58 -0700; ...snip true The circulating current tthrough the load C and tune C are virtually identical and roughly equal to tank-Q*I-anode. agreed large value 58-Series capacitors are not available in low therm; /archives//html/Amps/1997-08/msg00021.html (8,935 bytes)
9. [AMPS] Alpha 77 amps (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Sun, 03 Aug 1997 14:54:07 -0500; As I stated in earlier posts, 160m was truly an afterthought on the 77DX/SX's. A pair of the same doorknobs (858S's) are used in the plate block. The current through them on 10m is far in excess of t; /archives//html/Amps/1997-08/msg00023.html (9,734 bytes)
10. [AMPS] Alpha 77 amps (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Sun, 3 Aug 1997 20:12:10 +0000; To: <amps@contesting.com> Tank current relates only the the fundamental frequency RF current driving the tank and the Q. If the operating anode impedance (done by Chaffe analysis) is 2000 ohms, and; /archives//html/Amps/1997-08/msg00024.html (12,919 bytes)
11. [AMPS] Alpha 77 amps (score: 1): Author: kn6dv@qnet.com (Will, KN6DV); Date: Mon, 4 Aug 1997 00:25:41 -0000; Alan Emerald (K6GA) 714-964-3912, has all the parts needed to "upgrade" a 77DX to a 77SX and also has the knowledge and info to do so. Unfortunately he has no Internet available. 73 Will, KN6DV -- FA; /archives//html/Amps/1997-08/msg00025.html (9,203 bytes)
12. [AMPS] Alpha 77 amps (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 06 Aug 1997 10:55:29 EDT; On Sun, 3 Aug 1997 20:12:10 +0000 w8jitom@postoffice.worldnet.att.net writes: IMO the above statement should be applied to its author as well. At least on this list we have an administrator that perm; /archives//html/Amps/1997-08/msg00050.html (11,263 bytes)
13. [AMPS] Alpha 77 amps (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 6 Aug 97 09:51:53 -0700; Amen, Carl. Before the grate vhf parasitics debate got going, I was warned that one of the prime Rauchian debating weapons was the Text Avalanche, which Rauch uses to bury those who dare question hi; /archives//html/Amps/1997-08/msg00051.html (11,452 bytes)

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