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21. Re: [Amps] Amps] SB-220 update & gettering (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Tue, 29 Nov 2016 01:16:23 +0000 (UTC)
**shudder** Yes. Fortunately I put no more than 5W of exciter power into it before finding and fixing that problem. I found that at full power, 1200-1300 watts CW, I get to a dull red/orange on the
/archives//html/Amps/2016-11/msg00154.html (11,083 bytes)

22. Re: [Amps] A cheer for the SPE 2K (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Wed, 30 Nov 2016 02:45:13 +0000 (UTC)
Very few amps will run legal limit on 100% duty cycle RTTY! I don't think I'd want to pay for the power supply that would need. 73, Cathy N5WVR _______________________________________________ Amps ma
/archives//html/Amps/2016-11/msg00168.html (7,713 bytes)

23. Re: [Amps] A cheer for the SPE 2K (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Wed, 30 Nov 2016 14:14:47 +0000 (UTC)
The Alpha 9500 is well beyond my price point. I have an AL-811H and a Heathkit SB-220. I was originally going to buy an AL-80B, but I decided to trade down to an AL-811H and use the price difference
/archives//html/Amps/2016-11/msg00181.html (10,617 bytes)

24. Re: [Amps] FW: "Conventional" current flow (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Fri, 2 Dec 2016 13:44:08 +0000 (UTC)
Einstein showed mathematically that Planck's quantum theory correctly predicted the photoelectric effect. This was the foundation of his Nobel Prize. He was not an experimenter but a theoretician. 73
/archives//html/Amps/2016-12/msg00012.html (7,360 bytes)

25. [Amps] Not just you... The cost of amplifiers (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sat, 3 Dec 2016 06:12:05 -0800
"Maybe its just me, but I have problems wrapping my head around spending $7995.00  ( $10,313.55  in cdn dollars)...on any amplifier" It's not just you. I have trouble picturing myself spending more t
/archives//html/Amps/2016-12/msg00028.html (7,305 bytes)

26. Re: [Amps] The cost of amplifiers, radios (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sun, 4 Dec 2016 01:06:36 +0000 (UTC)
No argument there, but most of us couldn't afford a $13,000 radio today. Luxuries, including ham radio equipment, have gotten cheaper in real (non-inflationary) dollars since the 1950s and 1960s. But
/archives//html/Amps/2016-12/msg00036.html (10,785 bytes)

27. Re: [Amps] The cost of amplifiers, radios (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sat, 3 Dec 2016 18:50:11 -0800
Yes, but usually the "way that is found" is to get on the air with cheaper gear. Hence the proliferation of Ameritron equipment, used SB-200s, etc.  I've never heard of a ham getting a second job to
/archives//html/Amps/2016-12/msg00042.html (8,165 bytes)

28. [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sat, 3 Dec 2016 19:03:02 -0800
What's everyone doing to plan for the day when most tubes are unobtainium? I am wondering if I should be stocking up on Ryazan G811A tubes. They seem to shelf-age in a more friendly way than the 3-50
/archives//html/Amps/2016-12/msg00043.html (7,496 bytes)

29. Re: [Amps] The cost of amplifiers, radios (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sun, 4 Dec 2016 05:22:54 -0800
OK, then the Henry was the wrong example to make my point. I don't think I've ever seen one at a hamfest, and as far as I know none of the local hams use one. They run Ameritron, Dentron, or Kenwood.
/archives//html/Amps/2016-12/msg00058.html (8,577 bytes)

30. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sun, 4 Dec 2016 05:56:22 -0800
Sounds like a business opportunity for a small outfit like King Conversions. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/
/archives//html/Amps/2016-12/msg00060.html (7,271 bytes)

31. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Sun, 4 Dec 2016 16:47:53 -0800
We'll see. Last time I looked, the cost per watt of solid state amps was still 2X vacuum tubes. I'm sure that won't last forever, but I have not been seeing the price of complete solid state amps (as
/archives//html/Amps/2016-12/msg00082.html (8,719 bytes)

32. Re: [Amps] Value of a fully upgraded SB220? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Mon, 5 Dec 2016 17:08:40 +0000 (UTC)
As near as I can tell, SB-220's go for about $500 in working condition, less if they need maintenance. One in really superb condition with all upgrades might go for $600. $500 seems to be typical. I
/archives//html/Amps/2016-12/msg00097.html (7,425 bytes)

33. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Mon, 5 Dec 2016 19:25:33 -0800
No. The SB-220 power transformer is the weak link in that amp. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2016-12/msg00112.html (9,493 bytes)

34. Re: [Amps] Value of a fully upgraded SB220? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Mon, 5 Dec 2016 19:45:19 -0800
That's $1235 in modern dollars! No wonder you didn't have any to spend elsewhere! 73, Cathy N5WVR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.co
/archives//html/Amps/2016-12/msg00113.html (7,713 bytes)

35. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Mon, 5 Dec 2016 19:47:29 -0800
Sounds like you would really be using the parts from the old amp to build a new amp. That's no longer a "modification" once the changes snowball. _______________________________________________ Amps
/archives//html/Amps/2016-12/msg00114.html (9,447 bytes)

36. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Mon, 5 Dec 2016 19:51:37 -0800
I think $1,000 for a commercial amp based on this tech is way optimistic. We'll see once someone introduces it, or something similar. Cathy N5WVR _______________________________________________ Amps
/archives//html/Amps/2016-12/msg00116.html (8,548 bytes)

37. Re: [Amps] Stock up on tubes? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Tue, 6 Dec 2016 14:26:03 +0000 (UTC)
Is that VSWR of 65:1 key-down transmit at 1,700 watts, without any pulsing? So if I accidentally transmit normal hand-sent slow CW into a bad antenna mismatch, no damage will occur? I've gotten reall
/archives//html/Amps/2016-12/msg00130.html (13,368 bytes)

38. Re: [Amps] The cost of amplifiers, radios (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Tue, 6 Dec 2016 17:46:39 +0000 (UTC)
If you're going to move to Canada, be sure your ideal amp can cover 630 meters too! Wish the FCC would hurry up and approve 630 and 2200. _______________________________________________ Amps mailing
/archives//html/Amps/2016-12/msg00143.html (8,696 bytes)

39. [Amps] Pulls? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Tue, 6 Dec 2016 20:13:44 -0800
Where do you guys get your tube pulls? I see many, many mentions of pulls from medical or other devices, but I have never seen these offered. Have they dried up? Or do they all go up on eBay at crazy
/archives//html/Amps/2016-12/msg00156.html (6,385 bytes)

40. Re: [Amps] Pulls? (score: 1)
Author: Catherine James <catherine.james@att.net>
Date: Wed, 7 Dec 2016 16:50:09 +0000 (UTC)
And how do you find these deals when broadcast stations with older transmitters do a pull? I hear a lot of discussion around how great pulls are as an affordable source of good tubes, but it is alway
/archives//html/Amps/2016-12/msg00162.html (7,656 bytes)

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