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21. [Amps] Phillips BLF177 Transistor (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Thu, 12 Sep 2002 09:19:05 -0700 (PDT); Is Philips BLF177 equivalent to the Motrola MRF154? 73, Bill Smith KO4NR == Bill Smith KO4NR __________________________________________________ Do you Yahoo!? Yahoo! News - Today's headlines http://n; /archives//html/Amps/2002-09/msg00092.html (6,510 bytes)
22. [Amps] Electrolytic Capacitors for sale (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 15 Sep 2002 06:10:50 -0700 (PDT); I have 10 new CDE electrolyitc capacitors. The are CDE Type 381LX. 470 uf at 450vdc 500vdc surge. They are 2 inches high by 1 3/8 diameter and are rated at 105 deg C. Got them in trade at a swap meet; /archives//html/Amps/2002-09/msg00104.html (6,723 bytes)
23. [Amps] Heath SB-230 Plate Voltage (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 15 Sep 2002 17:12:41 -0700 (PDT); What is the plate voltage and plate current in the SB-230? 73, Bill == Bill Smith KO4NR __________________________________________________ Do you Yahoo!? Yahoo! News - Today's headlines http://news.y; /archives//html/Amps/2002-09/msg00107.html (6,374 bytes)
24. [Amps] Svetlana EL-509/6KG6 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 18 Sep 2002 05:01:30 -0700 (PDT); FYI Gintaras Sakenas has NOS Svetlana EL-509/6KG6 tubes for $12.50 each. Said he had a couple of dozen left in stock. I got some and they were excellent. His email is: ly2kw@kwtubes.com 73, Bill == B; /archives//html/Amps/2002-09/msg00123.html (6,516 bytes)
25. [Amps] Gonset Amplifier (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 18 Sep 2002 09:01:43 -0700 (PDT); Does anyone know anything about the Gonset 500-W 10-80M amplifier. I have been offered one to fix up if I think I can carry it out of a guy's basement. Is it worth the trouble. Would it be a good fou; /archives//html/Amps/2002-09/msg00126.html (7,602 bytes)
26. [Amps] Gonset Amplifier (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 18 Sep 2002 13:33:43 -0700 (PDT); == Bill Smith KO4NR __________________________________________________ Do you Yahoo!? Yahoo! News - Today's headlines http://news.yahoo.com; /archives//html/Amps/2002-09/msg00135.html (8,370 bytes)
27. [Amps] Amplifier Power Supply Ripple (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Thu, 19 Sep 2002 12:12:45 -0700 (PDT); What is an acceptable ripple voltage in an amplifier's power supply? I've been told anywhere from 10 to 3 percent???? 73, Bill == Bill Smith KO4NR __________________________________________________ D; /archives//html/Amps/2002-09/msg00149.html (6,588 bytes)
28. [Amps] 4CX250F Tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 23 Sep 2002 13:30:34 -0700 (PDT); Just came in to possession of a box full of new 4CX250F tubes. Thought they may be a very low cost alternative to the 3-400Z tubes in my Swan Mark 1 amp. I know it would take quite a bit of work to d; /archives//html/Amps/2002-09/msg00210.html (7,160 bytes)
29. [Amps] 4-250F tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 23 Sep 2002 13:31:55 -0700 (PDT); TypoThey are rated at 2000vdc Plate Voltage. 73, Bill == Bill Smith KO4NR __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.; /archives//html/Amps/2002-09/msg00211.html (6,373 bytes)
30. [Amps] Legal Limit Amps using 4CX250B tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 23 Sep 2002 15:12:17 -0700 (PDT); Are there any legal limit amps out there that use the 4CX250B tube? 73, Bill == Bill Smith KO4NR __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Y; /archives//html/Amps/2002-09/msg00214.html (6,997 bytes)
31. [Amps] Amperex with Eimac Tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 25 Aug 2002 06:12:15 -0700 (PDT); Can Amperex 3-400Z or 3-500Z tubes be used in parallel with a like Eimac tube? 73, Bill == Bill Smith KO4NR __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real; /archives//html/Amps/2002-08/msg00263.html (6,550 bytes)
32. [Amps] ETO Model 70 Amplifier (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 1 Jul 2002 12:23:29 -0700 (PDT); A guy swore he saw a ETO Model 70 amplifier the other day. It is part of an estate sale as well as a lot of other radio equipment. I know little of these old amps. Was there such an amplifier? If so; /archives//html/Amps/2002-07/msg00007.html (7,085 bytes)
33. [Amps] 3-400Z vs. 4-400A (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Fri, 5 Jul 2002 07:55:54 -0700 (PDT); Some time ago a guy told me he was substituting the 4-400A tube in his Swan Mark 1 amplifier instead of using the 3-400Z tube. He had a large supply of the 4-400A tubes on hand and said they were wor; /archives//html/Amps/2002-07/msg00069.html (7,679 bytes)
34. [Amps] Zero Bias Amps Question (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 8 Jul 2002 08:48:31 -0700 (PDT); It has been suggested I add a string of diodes in the center tap of the Filament Transformer in my Swan Mark 1 amplifier for bias. This is a Zero Bias amp but bias is suggested anyway to ensure a sta; /archives//html/Amps/2002-07/msg00124.html (6,901 bytes)
35. [Amps] Bakelite on base of 3-400Z Tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Fri, 12 Jul 2002 04:16:40 -0700 (PDT); I found some old but good 3-400Z tubes. A couple of them have a bakelite cover or attachement on the base. Anyone know what it was for? 73, Bill == Bill Smith KO4NR __________________________________; /archives//html/Amps/2002-07/msg00160.html (6,648 bytes)
36. [Amps] Muffin Fans and hot exhaust (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 21 Jul 2002 15:15:26 -0700 (PDT); Do the muffin fans hold up ok with all the hot air being pulled through them? I use one to enhance the exhaust from two 3-400Z tubes. 73, Bill == Bill Smith KO4NR ____________________________________; /archives//html/Amps/2002-07/msg00386.html (7,752 bytes)
37. [Amps] Muffin Fan on Swan Mark 1 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 24 Jul 2002 08:13:36 -0700 (PDT); Well I reinstalled a muffin fan on the back of the Swan Mark 1. I fused it seperately from the amp so I would not blow fuses in the amp. I checked the air flow out of the amp using only the internal; /archives//html/Amps/2002-07/msg00456.html (8,124 bytes)
38. [Amps] Swan Mark 1 Meter Problem (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 3 Jun 2002 06:28:35 -0700 (PDT); My Mark 1 meter will not indicate anything at all. I have traced all the wiring throughout and did continuity checks but can't find anything wrong. How can I test the meter without damaging the movem; /archives//html/Amps/2002-06/msg00016.html (6,893 bytes)
39. [Amps] Swan Mark 1 Amplifier T/R relay keying (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Tue, 18 Jun 2002 07:21:08 -0700 (PDT); I have run up on an odd problem. The keying circuit I built to key amplifier T/R relays with my Kenwood 850ATS will not work with my Swan Mark 1 T/R relay but works well with my other amplifiers. The; /archives//html/Amps/2002-06/msg00137.html (6,855 bytes)
40. [Amps] 3-400Z Tube problem (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Tue, 18 Jun 2002 07:27:19 -0700 (PDT); I have a 3-400Z tube that has 100ma of plate current when it is supposed to be cut off. I verified this by installing a spare tube. There is a 47K ohm resistor in this Swan Mark 1 that cuts off the t; /archives//html/Amps/2002-06/msg00138.html (6,732 bytes)

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