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201. [TenTec] Scout VS. DX-77 (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Fri, 29 Oct 1999 09:47:27 -0500
What makes you think the company ad writer didn't provide the copy to CQ. That's a lot cheaper than loaning a radio! 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions
/archives//html/TenTec/1999-10/msg00797.html (8,577 bytes)

202. [TenTec] Tentec Scout/ "Anything Positive" (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Fri, 29 Oct 1999 12:11:23 -0500
So there's a LM2940-11.0? Means 11.5 volts is the low limit on the input voltage. After some use a poor battery will drop down that far under load, and it doesn't take much of a resistive connection
/archives//html/TenTec/1999-10/msg00808.html (10,171 bytes)

203. [TenTec] Tentec Scout/ "Anything Positive" (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 30 Oct 1999 09:51:55 -0500
The LM2940-10 is supposed to regulate down to an input of 10.5 volts. Makes me wonder if some generations of Scout might actually have LM7810 from days before the LM2940-10 was created. And the 7810
/archives//html/TenTec/1999-10/msg00845.html (9,920 bytes)

204. [TenTec] Tentec Scout/ "Anything Positive", a bit more (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 30 Oct 1999 20:09:20 -0500
The FB-3 before that even... 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems:
/archives//html/TenTec/1999-10/msg00860.html (7,721 bytes)

205. [TenTec] Tentec Scout/ "Anything Positive", a bit more (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 30 Oct 1999 20:11:03 -0500
Seems to me a lot of BC-610 were used mobile in a radio shelter on the back of a duce and a half truck... 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@co
/archives//html/TenTec/1999-10/msg00861.html (8,686 bytes)

206. Fwd: [TenTec] Corsair questions- please (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 01 Sep 1999 15:50:44 -0500
Remembers better than I about the four filters... I think the Corsair 1 uses a 4 pole filter in the first IF while the Corsair II uses an 8 pole filter. There have been Corsair 1s modified to use an
/archives//html/TenTec/1999-09/msg00015.html (7,240 bytes)

207. [TenTec] Which filters (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 08 Sep 1999 10:29:25 -0500
Actually I think I prefer the original TenTec because with their less steep slopes (poorer shape factor as INRAD would say) they tend to ring less on noise transients which I think is a very good tra
/archives//html/TenTec/1999-09/msg00097.html (8,304 bytes)

208. [TenTec] Pegasus Software/PcPakRatt Version 1.0/NT 4.0 Performance (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 09 Sep 1999 09:58:52 -0500
Practically every maker of windoze software figures he knows your computer and uses better than you and can therefore change everything including DLLs necessary for your living as he wishes. The safe
/archives//html/TenTec/1999-09/msg00131.html (10,275 bytes)

209. [TenTec] Pegasus Software/PcPakRatt Version 1.0/NT 4.0 Performance (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 09 Sep 1999 11:12:01 -0500
I've written one program to extract windoze fonts for my own use, both in C and C++. The C++ program with the same windoze interfaces and function was 30% larger than the C program. Same compiler. I
/archives//html/TenTec/1999-09/msg00135.html (9,755 bytes)

210. [TenTec] Ten Tec cases (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Fri, 10 Sep 1999 14:23:28 -0500
As traditionally as aluminum parts are alodined for military and aircraft parts, steel parts are cadmium plated and alodined. Both end up with the same "sheep dip" irregular color. Keeps corosion at
/archives//html/TenTec/1999-09/msg00156.html (6,833 bytes)

211. [TenTec] Battery Operation (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 11 Sep 1999 14:33:18 -0500
By the time you get a lead acid battery down to 10.5 volts there's not much capacity left. The problem with many radios seems to be in the regulators. The 7800/LM340 family of regulators needs a coup
/archives//html/TenTec/1999-09/msg00163.html (9,474 bytes)

212. [TenTec] Battery Operation-another solution (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 11 Sep 1999 21:55:43 -0500
Another solution is to insert a step up switching type voltage regulator between the radio and the battery. Need only run at a few KHz for keeping the noise down with larger L and C. Let it produce 1
/archives//html/TenTec/1999-09/msg00166.html (8,024 bytes)

213. [TenTec] Triton IV (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 12 Sep 1999 11:52:30 -0500
The power switch in the Triton probably can't handle the full power supply output current. If its like the Corsair II its intended to operate the power supply line switch only. Lower current there. S
/archives//html/TenTec/1999-09/msg00176.html (7,498 bytes)

214. [TenTec] Tentec Amps (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 18 Sep 1999 13:13:31 -0500
Some manufacturers lie more than others or run higher voltage, or measure the amplifier under audio amplifier rules which means with an external regulated power supply holding up the plate voltage, o
/archives//html/TenTec/1999-09/msg00316.html (8,265 bytes)

215. [TenTec] Type and Size of the Tentec Transformer (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 19 Sep 1999 23:00:13 -0500
What the ammeter shows for the line current on a particular transformer will depend on the ammeter, the transformer core, the load, and the line voltage. In a plate transformer application the load c
/archives//html/TenTec/1999-09/msg00345.html (13,161 bytes)

216. [TenTec] Elmer (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Tue, 21 Sep 1999 10:16:20 -0500
The difference between 15 and 20 amps won't cause wiring to go into a meltdown condition. And that wire size is chosen by the electrical codes to be protected by the circuit breaker in the panel. If
/archives//html/TenTec/1999-09/msg00386.html (7,308 bytes)

217. [TenTec] Corsair value? (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 22 Sep 1999 10:10:04 -0500
I saw one at a hamfest last summer for $425 with power supply. Probably should have grabbed it. I paid $850 from a dealer last spring. Had to rebuild the PTO since then. 73, Jerry, K0CQ -- FAQ on WWW
/archives//html/TenTec/1999-09/msg00404.html (7,020 bytes)

218. [TenTec] Copying CW in your head (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 23 Sep 1999 13:20:23 -0500
Copying code groups can be easier than plain language because you absolutely can't anticipate the next character or the ending of the group. Anticipating and finishing a word before its all sent is a
/archives//html/TenTec/1999-09/msg00451.html (8,919 bytes)

219. [TenTec] Older Argosy 525 - internal noise floor? (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 23 Sep 1999 13:23:38 -0500
Sounds to like a symptom of a leaking coupling capacitor or a noisy transistor. Cleary before the audio gain control. Resistors occasionally fail in a noise producing mode. Time for some signal traci
/archives//html/TenTec/1999-09/msg00452.html (7,387 bytes)

220. [TenTec] [Q] Pegasus distorted xmit audio? (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 26 Sep 1999 10:11:58 -0500
All radios will get reports of distorted audio during auroral events like early in the evening last Wednesday. Distortion on 2m was beyond understandability for ssb. Only CW was copiable. Likely 10m
/archives//html/TenTec/1999-09/msg00523.html (7,246 bytes)


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