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141. [TenTec] Ten Tec Corsair II CW Sidetone? (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson)
Date: Thu, 23 Mar 2000 22:25:23 -0600
Naw, its too rough for a square wave, its a saw tooth from a relaxation oscillator. I cleaned one of those up once by putting a resistor on the discharge side to make an equal sloped triangular wave,
/archives//html/TenTec/2000-03/msg00356.html (8,996 bytes)

142. [TenTec] SWR Bridge Null Adjustment (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson)
Date: Wed, 29 Mar 2000 11:04:30 -0600
After you confirm the network analyzer with another network analyzer or precision load, you simply adjust the nulling capacitor in the amplifier for minimum on the reflected meter while feeding power
/archives//html/TenTec/2000-03/msg00424.html (7,020 bytes)

143. [TenTec] [Fwd: [Fwd: [R-390] R-390A Front Panel Painting]] (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson)
Date: Thu, 30 Mar 2000 16:23:05 -0600
Message-ID: <38E3B2E0.367C@ames.net> To: <tentec@contesting.com> Date: Thu, 30 Mar 2000 14:02:40 -0600 From: "Dr. Gerald N. Johnson" <geraldj@ames.net> Reply-To: geraldj@ames.net Organization: Gerald
/archives//html/TenTec/2000-03/msg00470.html (10,637 bytes)

144. [TenTec] CORSAIR I (tick,tick,tick...) (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Tue, 01 Feb 2000 12:14:45 -0600
Frequency gate? Shielding of the counter missing, or added for the Corsair II? DC to the counter not filtered? Does moving a hand close to the readout make the clicks louder? 73, Jerry, K0CQ -- FAQ o
/archives//html/TenTec/2000-02/msg00011.html (8,002 bytes)

145. [TenTec] Answers on AirPax breakers (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 02 Feb 2000 17:26:45 -0600
But with NEWARK you aren't done paying. Add $3 for using a credit card, then another $3 for shipping the second item you choose to get the minimum order up to $25 because they will invariably ship it
/archives//html/TenTec/2000-02/msg00038.html (7,254 bytes)

146. [TenTec] 6M (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 02 Feb 2000 17:26:51 -0600
I have a 1209. Its pretty good, RF switching could be improved a bit. There's a receiver RF transistor good for a 1 dB NF and the system NF is more like 7 dB because, I believe, the front end switchi
/archives//html/TenTec/2000-02/msg00039.html (8,276 bytes)

147. [TenTec] 6M (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 03 Feb 2000 12:18:16 -0600
Having had numerous Japanese VHF rigs, I've grown tired of their relative lack of sensitivity, selectivity, user friendliness, and strong signal handling. So I'm going to transverters or maybe my own
/archives//html/TenTec/2000-02/msg00047.html (7,945 bytes)

148. [TenTec] Omni C / Corsair Hssssss. (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 03 Feb 2000 14:12:17 -0600
I use a metal cased Motorola mobile speaker from the Motrac days. It doesn't pass much high pitched hiss. And I round off more with the Pass band tuning. There have been some passive low pass filters
/archives//html/TenTec/2000-02/msg00050.html (9,022 bytes)

149. [TenTec] Erratic Transmit Output (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 13 Feb 2000 10:34:11 -0600
Time for a hot air gun (hair dryer will do) and some freeze mist. Open up the radio, heat up the transmitter section with the hot air gun while transmitting into a dummy load. When power disappears,
/archives//html/TenTec/2000-02/msg00157.html (7,833 bytes)

150. [TenTec] OMNI VI FM reception (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Thu, 17 Feb 2000 13:25:46 -0600
Its generally necessary to use a connection direct to the discriminator output for 9600 baud data. The data can't stand the phase shift introduced by the deemphasis network and by other random phase
/archives//html/TenTec/2000-02/msg00191.html (7,323 bytes)

151. [TenTec] Hercules II Power Source (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 01 Jan 2000 19:36:36 -0600
The proportional difference is greater because the saturation voltage of the PA transistors is probably 2.5 volts. That reduces the swing available. So the swing with 14 supply is only 10.5. With 12
/archives//html/TenTec/2000-01/msg00029.html (8,441 bytes)

152. [TenTec] 961PS Troubleshoot (Pt 2 - long) (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 02 Jan 2000 00:44:08 -0600
Probably all the small electrolytics and all the small chips and maybe the transistors are blown. Fuses are only reliable indicators of semiconductor failure and reversed polarity on chips (like the
/archives//html/TenTec/2000-01/msg00036.html (7,044 bytes)

153. [TenTec] Pegasus and DOS programs (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sun, 02 Jan 2000 20:46:18 -0600
I use DesqView to multitask DOS programs all the time. I'm running three or four packet programs simultaneously on a 386SX16 with 4 MB. DesqView multitasks far better than windoze. Its no problem in
/archives//html/TenTec/2000-01/msg00067.html (7,598 bytes)

154. [TenTec] Re: Pegasus and DOS programs - DesqView!!!!! (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Mon, 03 Jan 2000 09:10:20 -0600
DesqView used to run Windoze 3 as a task, but it might not run windoze 95. Since neither will run on a Hercules mono card, my packet computer doesn't have that complication to contend with. Likely Lo
/archives//html/TenTec/2000-01/msg00076.html (7,553 bytes)

155. [TenTec] Arrrrggggg (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 01 Dec 1999 10:01:01 -0600
I think 'Himmiherrgottssakramentkruzifixhallelujasaupreissn' may be a little strong. Arrrrgggg is for the top of the stairs at the beginning of the fall after tripping over the sleeping cat. 'Himmihe
/archives//html/TenTec/1999-12/msg00009.html (9,061 bytes)

156. [TenTec] Arrrrggggg (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 01 Dec 1999 13:17:05 -0600
Excuse my school book German from 40 years ago, but I think it breaks down: 'Himmiherrgottssakramentkruzifixhallelujasaupreissn' Himmi is short for himmel or Heaven. Herr Gott is Lord God. Sakrament
/archives//html/TenTec/1999-12/msg00015.html (9,122 bytes)

157. [TenTec] watt meter calibration (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Fri, 17 Dec 1999 14:55:05 -0600
The 1N34's aren't consistent enough to predict their handling of the PIV at RF when connected in series. What I use is a 200 MHz Tek scope but that may be overkill. Another workable solution is an HP
/archives//html/TenTec/1999-12/msg00310.html (7,552 bytes)

158. [TenTec] FS: Corsair I, microphone and manual (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Wed, 22 Dec 1999 10:18:20 -0600
The standard technique from removing magnetic chips from a meter movement is to snare them with a strip of adhesive tape, like scotch tape. That will get them away from the magnet, where plain paper
/archives//html/TenTec/1999-12/msg00451.html (7,875 bytes)

159. [TenTec] Hercules II Power Source (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 25 Dec 1999 20:07:56 -0600
The battery will supply very large current peaks and act to smooth the supply. Amplifier output will depend a lot on voltage. A tenth volt change will have a large effect on the output power. I think
/archives//html/TenTec/1999-12/msg00493.html (9,819 bytes)

160. [TenTec] Hercules II Power Source (score: 1)
Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.)
Date: Sat, 25 Dec 1999 22:34:06 -0600
That 10% limit applies to gel cells only as far as I know. Wet cells will accept and deliver bigger currents. The electrolyte doesn't circulate to accept charge rapidly in the gel cell, that's a limi
/archives//html/TenTec/1999-12/msg00499.html (11,767 bytes)


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