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- Date: Thu, 17 Feb 94 15:43:25 PST
- From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
- Errors-To: Info-Hams-Errors@UCSD.Edu
- Reply-To: Info-Hams@UCSD.Edu
- Precedence: Bulk
- Subject: Info-Hams Digest V94 #170
- To: Info-Hams
-
-
- Info-Hams Digest Thu, 17 Feb 94 Volume 94 : Issue 170
-
- Today's Topics:
- Daily Summary of Solar Geophysical Activity for 16 February
- DX: Tune In To Tuva
- Frequency doubler design, help, VFO.
- Help me find quartz for TV station in Novosibirsk
- IC-820
- John Ramsey
- TS850-PK232 Comments - Cures !
- What the heck are these?
-
- Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
- Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Info-Hams Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: Thu, 17 Feb 1994 01:13:38 MST
- From: agate!howland.reston.ans.net!wupost!gumby!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
- Subject: Daily Summary of Solar Geophysical Activity for 16 February
- To: info-hams@ucsd.edu
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
-
- 16 FEBRUARY, 1994
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- (Based In-Part On SESC Observational Data)
-
-
- SOLAR AND GEOPHYSICAL ACT
- ------------------------------------------------------------
-
- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 047, 02/16/94
- 10.7 FLUX=104.7 90-AVG=106 SSN=071 BKI=3433 3322 BAI=014
- BGND-XRAY=B2.1 FLU1=2.7E+06 FLU10=1.3E+04 PKI=3433 3332 PAI=015
- BOU-DEV=030,050,023,034,033,023,017,015 DEV-AVG=028 NT SWF=00:000
- XRAY-MAX= B6.2 @ 1113UT XRAY-MIN= B1.8 @ 1815UT XRAY-AVG= B2.4
- NEUTN-MAX= +002% @ 2235UT NEUTN-MIN= -003% @ 1620UT NEUTN-AVG= +0.0%
- PCA-MAX= +1.2DB @ 1940UT PCA-MIN= -0.3DB @ 0350UT PCA-AVG= +0.0DB
- BOUTF-MAX=55356NT @ 0319UT BOUTF-MIN=55310NT @ 1842UT BOUTF-AVG=55336NT
- GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+062,+000,+000
- GOES6-MAX=P:+125NT@ 1803UT GOES6-MIN=N:-067NT@ 0530UT G6-AVG=+086,+040,-031
- FLUXFCST=STD:105,110,110;SESC:105,110,110 BAI/PAI-FCST=015,025,020/015,025,020
- KFCST=1112 2111 3333 4121 27DAY-AP=012,007 27DAY-KP=3333 3232 2311 1232
- WARNINGS=
- ALERTS=
- !!END-DATA!!
-
- NOTE: The Effective Sunspot Number for 15 FEB 94 is not available.
- The Full Kp Indices for 15 FEB 94 are: 4- 3- 3o 3o 5- 3o 3o 3+
- The 3-Hr Ap Indices for 15 FEB 94 are: 23 14 15 16 36 15 15 20
- Greater than 2 MeV Electron Fluence for 16 FEB is: 5.4E+08
-
-
- SYNOPSIS OF ACT
- --------------------
-
- Solar activity was very low. A new region was assigned:
- 7672 (N03E28).
-
- Solar activity forecast: solar activity is expected to be
- low.
-
- The geomagnetic field has been at mostly unsettled levels
- at mid-latitudes while some high latitude stations reported
- major storm levels. Energetic electron fluxes continue to be at
- elevated levels. It appears as if the long duration geomagnetic
- storm is about to end. A-Fredericksburg values for the past
- eleven days are listed below:
-
- Date: Feb 5 6 7 8 9 10 11 12 13 14 15
- A-Fred: 21 39 45 42 32 28 38 27 30 28 26
-
- This represents the longest string of days greater than 20
- since 1957.
-
- Geophysical activity forecast: the geomagnetic field is
- expected to be unsettled to begin the period. Active to minor
- storm conditions are expected for the end of the period due
- to a well positioned coronal hole.
-
- Event probabilities 17 feb-19 feb
-
- Class M 10/10/10
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- Geomagnetic activity probabilities 17 feb-19 feb
-
- A. Middle Latitudes
- Active 25/35/35
- Minor Storm 25/35/25
- Major-Severe Storm 05/05/05
-
- B. High Latitudes
- Active 30/35/35
- Minor Storm 25/35/30
- Major-Severe Storm 05/05/05
-
- HF propagation conditions continued to improve to
- near-normal values over the low and middle latitudes today.
- High and polar latitudes also showed improvements, although
- periods of below-normal conditions persisted primarily along
- the night-sectors where residual localized substorming is
- persisting. Conditions should continue at current levels until
- 18 February when the next disturbance from another well placed
- (although smaller) coronal hole is due to begin perturbing the
- high and upper-middle latitude ionosphere.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WIT
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7668 N08W55 283 0020 BXO 04 005 BET
- 7669 N08E17 211 0010 BXO 04 002 BET
- 7670 N10E24 204 0040 CRO 09 008 BET
- 7671 N10E38 190 0420 CKO 05 004 BET
- 7672 N03E28 200 0010 AXX 01 002 ALPHA
- REGIONS DUE TO RET
- NMBR LAT
- 7661 N08 133
- 7660 S08 114
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 16 FEBRUARY, 1994
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
- 1340 1340 1341 150
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 16 FEBRUARY, 1994
- -----------------------------------------------------------
- BEGIN MAX END LOCATION TYPE SIZE DUR II IV
- NO EVENTS OBSERVED
-
-
- INFERRED CORONAL HOLES. LOCATIONS VALID AT 16/2400Z
- ---------------------------------------------------
- ISOLATED HOLES AND POLAR EXT
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- 62 S19W02 S19W02 N17W26 N22W04 246 ISO NEG 013 10830A
- 63 S15E63 S27E51 S01E46 S01E46 184 ISO POS 008 10830A
-
-
- SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
- ------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
- 15 Feb: 0049 0141 0157 B9.0
- 0345 0351 0402 C1.0 SF 7670 N12E49
- 0551 0556 0600 C1.1 SF 7670 N10E47
- 0747 0757 0811 C1.8 SF 7671 N09E63 15 16 24
-
-
- REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- C M X S 1 2 3 4 Total (%)
- -- -- -- -- -- -- -- -- --- ------
- Region 7670: 2 0 0 2 0 0 0 0 002 (50.0)
- Region 7671: 1 0 0 1 0 0 0 0 001 (25.0)
- Uncorrellated: 0 0 0 0 0 0 0 0 001 (25.0)
-
- Total Events: 004 optical and x-ray.
-
-
- EVENTS WIT
- ----------------------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations
- ------ ---- ---- ---- ---- -- ------ ------ ---------------------------
- NO EVENTS OBSERVED.
-
- NOTES:
- All times are in Universal Time (UT). Characters preceding begin, max,
- and end times are defined as: B = Before, U = Uncertain, A = After.
- All times associated with x-ray flares (ex. flares which produce
- associated x-ray bursts) refer to the begin, max, and end times of the
- x-rays. Flares which are not associated with x-ray signatures use the
- optical observations to determine the begin, max, and end times.
-
- Acronyms used to identify sweeps and optical phenomena include:
-
- II = Type II Sweep Frequency Event
- III = Type III Sweep
- IV = Type IV Sweep
- V = Type V Sweep
- Continuum = Continuum Radio Event
- Loop = Loop Prominence System,
- Spray = Limb Spray,
- Surge = Bright Limb Surge,
- EPL = Eruptive Prominence on the Limb.
-
-
- ** End of Daily Report **
-
- ------------------------------
-
- Date: Wed, 16 Feb 94 22:37:00 -0600
- From: agate!howland.reston.ans.net!cs.utexas.edu!swrinde!menudo.uh.edu!nuchat!cld9!greg.pool@network.ucsd.edu
- Subject: DX: Tune In To Tuva
- To: info-hams@ucsd.edu
-
- TUNE IN TO TUVA
- Greg Pool WH6DT/6
-
- A group of radio amateurs from the Central Coast of California met with
- hoomeii-master Kongar-ool Ondar and his family last October in an effort to
- bring Amateur Radio to the land of Tannu-Tuva, near Mongolia in central Asia.
-
- Ondar and his student, Bady-Dorzhu, had been showcasing hoomeii, their unique
- style of throat-singing, at concerts in New York, San Francisco, and Los
- Angeles. Their trip included a heartwarming appearance on the former Chevy
- Chase Show, where nine-year old Bady's performance stole the show.
-
- Ondar's livelihood is the teaching of hoomeii, which dates back thousands of
- years. The performer accentuates the natural harmonics present in all our
- voices to sing several different tones all at once. An oddly mesmerizing
- sound to the listener and equally difficult one for the performer to
- maintain, it is a national treasure to the Tuvinian people and a heralded
- craft throughout the world.
-
- Spearheaded by Pat Barthelow AA6EG and Ralph Leighton, of Friends of Tuva
- (FOT), the group presented radio equipment to Ondar for delivery to the
- Lyceum of Tuva, a high school located in the capital city of Kyzyl. FOT was
- founded jointly by Leighton and the late physicist, Nobel Laureate Richard
- Feynman.
-
- The equipment included a Drake 2-NT transmitter and 2-C receiver, donated by
- Paul Herrschaft KQ6G, and both the ARRL's Radio Amateur's Handbook and
- Antenna Book, donated by Jim Maxwell W6CF.
-
- "Tannu-Tuva is an extremely remote republic of about 300,000 people," Pat
- informs. "The winters are very severe; temperatures can reach -60 deg F.
- The republic is surrounded by the 10,000-foot high Sayan mountain range to
- the north and the Tannu-ola mountains to the south.
-
- "Between 1921 and 1944, Tuva was an independent state. They joined the
- Soviet Union voluntarily in 1944 as an autonomous region, and were consti-
- tuted as an autonomous republic in October, 1961. Tuva now faces a new
- future as a member of the Commonwealth of Independent States."
-
- A member of the Naval Postgraduate School ARC in Monterey CA, Pat is working
- on furnishing enough ham radio equipment to help activate a radio club at the
- Lyceum.
-
- "The Lyceum amateur radio station," he says, "is likely to become a
- centerpiece of attention throughout the republic, enabling the school to
- become connected to the rest of the world, particularly to other schools.
- They are very interested in communicating with other students."
-
- Although not an amateur himself, Ondar immediately recognized the Morse Code
- key given to him and gladly agreed to bring back the equipment to the Lyceum
- in Tuva. Quite a celebrity in his own country, Ondar informed the group
- through Leighton that he would tell his fellow Tuvinians of his visit with
- the US amateurs.
-
- Besides FOT, Pat is also working with the Foundation for Amateur Radio
- International Radio Service (FAIRS) and the Northern California DX
- Association (NCDXA).
-
- On hand to represent the NCDXA was Jim W6CF, who noted that Tuva (UA0Y..) is
- on the air but still quite rare. "Tuva is located in Zone 23, which includes
- Mongolia and Tibet, but is not that active." Jim informed Leighton that the
- project would be of interest to a great many amateurs, even to the point of
- DXpeditions into the area.
-
- Pat adds the power grid there is 220 volt and 50 Hz. "HF, VHF, UHF,
- satellite, and packet is needed. If anyone knows how to obtain ham radio
- equipment through educational grants, I would love to hear about it."
-
- This first delivery will be a test to see how best to transport radio
- equipment into Tuva. Hand-carrying anything of significant value through
- customs in Russia can carry a slight risk. A letter from the President of
- Tuva in support of the project will accompany all donations.
-
- "Any equipment would go to Tuva under the close accounting and supervision of
- myself and Ralph Leighton, " assures Pat. Leighton authored Tuva or Bust!,
- an account of the FOT's formation in 1977 and their ensuing exploits.
-
- You can contact Pat at on internet at 4927 @ msg.com, packet @
- K6LY.#NOCAL.CA.USA.NA or mail at 810-B Airport Rd., Monterey CA 93940 USA.
-
- Bylirig! (Tuvinian for 73)
-
- from:
- Pool, G., 1994, "Tune In To Tuva," Worldradio, March, p. 16.
- see also:
- Pool, G., 1993, "Iniki and the Red Cross," Worldradio, June, pp. 1, 18-21.
- Pool, G., 1993, "Royal Gardens QRT," Worlradio, April, pp. 1, 13-16.
- Pool, G., 1992, "Volcano Voice," Worldradio, August, pp. 11-12.
-
- ---
- OLX 2.1 TD Aloha+73 de Greg WH6DT greg.pool@nitelog.com
- [R2.00o] Usenet Nitelog BBS Monterey CA 408-655-1096
-
- ------------------------------
-
- Date: Thu, 17 Feb 1994 15:43:13 GMT
- From: library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!newsserver.jvnc.net!raffles.technet.sg!ntuix!ntuvax.ntu.ac.sg!asirene@network.ucsd.edu
- Subject: Frequency doubler design, help, VFO.
- To: info-hams@ucsd.edu
-
- Hi,
-
- I need a simple design for a 20m VFO that drops into the place of
- a X-tal. My exact transmitting circuit is the 6-watter from the 1986 ARRL
- Handbook.
-
- I have also built a 40 meter VFO from the QRP tranceiver designs in
- the 1994 ARRL Handbook and they work. But when I use the VFO with the freq.
- doubler circuit from the September 1993 issue of CQ, I found the output to
- be too weak and fundamental frequency rejection is insufficient.
-
- The doubler was originally intended for doubling 3.5 MHz to 7 MHz
- but I am using it to double 7 MHz to 14 MHz. Is there a problem doing this
- and/or is there a more suitable means of deriving 20 m from a 40 m VFO?
-
- The VFO works fine right now. I just can't get a strong and clean
- doubled frequency. Can anyone help me, especially if you have access to the
- documents I cited, could you take a look at the circuits and advise me. Tks.
-
- 73 de 9V Daniel
-
- ------------------------------
-
- Date: Thu, 17 Feb 1994 21:48:55 GMT
- From: news.cerf.net!megatek!jimc@network.ucsd.edu
- Subject: Help me find quartz for TV station in Novosibirsk
- To: info-hams@ucsd.edu
-
- In article <AAOIYOjmC5@msib.nsk.su> main@msib.nsk.su writes:
- >
- >Hi, world!
- >
- > Anybody know where can I find a few quartz resonators for
- >governmental TV station in Novosibirsk, becouse component plants in
- >Russia are stay or closed and component distributors demand minimal order
- >in $1000.
- >
- >Please, help me find quartz
- >
- >Freq Q-ty
- >98,217 MHz 1
- >48,972 ... 1
- >49,986 1
- >50,388 1
- >50,791 1
- >52,000 1
- >52,201 1
- >52,590 1
- >53,368 1
- >44,333333 1
- > 5,13550 8 <-- urgent & urgent
- > 5,040 2 <--
- >
- >98,217 KHz 2
- >
- >Please, answer me directly by e-mail, because I don't follow
- >this newsgroups.
- >
- >Thanks,
- >
- >----
- >Alexandr N.MAINICHEV /Telex: (64)412062 OCTET SU,
- > / BOX 50516
- > Dipl.Physic. / POST BOX 82, / main@msib.nsk.su
- > Director of / NOVOSIBIRSK-90, / Fax:(383 2) 35 68 11
- > "Agency MicroSib" / 630090, RUSSIA / Ph :(383 2) 35 44 28
- >
- >
- >
- >
- >
- >
-
-
- Most of you probably already know this, but the commas in this posted
- request serve the same funtion as our decimal points. So they are *not* looking
- for XTALs in the GHZ range...
-
- --
- Jim Campbell "The Tye-Dye Guy" | "Remember to tweet!"
- jimc@megatek.com | When in doubt, you're probably
- WB6ZPB NSS ASA TNS | unsure about something
-
- ------------------------------
-
- Date: 17 Feb 94 23:09:15 GMT
- From: news-mail-gateway@ucsd.edu
- Subject: IC-820
- To: info-hams@ucsd.edu
-
- Hello Everyone,
- Has anyone heard anything about the IC-820 all mode dual band rig.
- All I have seen is a jpg picture of it on the UO-22 bird.
- Is it already availble ?
- what are the general specification ?
- How much does it cost?
- thanks and bye ,Assi
- s2902081@techst02.technion.ac.il
-
- ------------------------------
-
- Date: Wed, 16 Feb 1994 20:32:05 GMT
- From: news.Hawaii.Edu!uhunix3.uhcc.Hawaii.Edu!jherman@ames.arpa
- Subject: John Ramsey
- To: info-hams@ucsd.edu
-
- In article <CLAz5v.Iss@news.direct.net> kg7bk@indirect.com (Cecil Moore) writes:
- >JEFF M. GOLD (JMG@tntech.edu) wrote:
- >: Well I will say it flat out: John Ramsey is a liar.
- >
- >Jeff, a psychologist will tell you that anyone who says a person is
- >a "thing" rather than saying a person acted in a certain manner under
- >certain circumstances, has at least abandoned objectivity and at worst,
- >abandoned rationality. I think I've seen these exact words before. Do
- >you have this file stored on your disk drive somewhere?
- >
-
- Oh no. Cecil, are you going to be the net.psychologist and analyze what
- we say and how we say it? These newsgroups aren't science journals -
- were not turning out research papers on here. Most are at work and in
- a hurry, and will type out their comments as if they were speaking to
- someone. Jeff got his point across - we understood what he said quite
- clearly, and I don't think anyone (except you) cares how he said it:
- 1. Joe is a liar
- 2. Joe has lied in the past
- 3. Joe frequently lies
- 4. Joe is currently lying
- 5. Joe will continue to lie
-
- I think 1. encompasses all the others quite nicely.
-
- Oh, by the way: I am a mathematics lecturer - isn't `lecturer' a thing
- just like `liar'.
-
- Jeff NH6IL
-
- ------------------------------
-
- Date: 17 Feb 94 20:19:51 GMT
- From: news-mail-gateway@ucsd.edu
- Subject: TS850-PK232 Comments - Cures !
- To: info-hams@ucsd.edu
-
-
-
- PK232 Mods - Problems - 440S - 850S Radios
-
- PK232 to Kenwood TS 440
-
- For those who are having difficulty changing power i.e. a very small increase
- in mic gain
- makes a big difference in power output. If you have been plugging your
- PK232MBX on
- mike plug of your TS440S, you must try instead at the rear of your 440s with
- the 13 pin
- din plug. Pins 4, 8 and 12 must be shorted together. And 1 of those pins
- soldered with
- the brown wire ( ground ) supplied with the PK232MBX. Pin 3 must go with the
- green
- wire ( audio speaker output ). Pin 11 must be soldered with white wire ( Audio
- mic ).
- And pin 13 must be soldered with the red wire ( PTT ). Don't forget to wire the
- brown
- with the bare wire. And also the shield wire must be clamped with the metal
- frame of the
- 13 pin din plug.
- After this small modifications you'll have to increase the afsk variable
- resistor at the rear
- of the PK232MBX. ( approx. 3/4 of max. : 75mvolts rms ). You will see with that
- after
- you
- will be in better control of the TS440S
-
- .
-
- PK232MBX and distortion problems:
-
- 1. Own a PK232 or PK232MBX ?
- 2. Have it connected to an HF rig ?
- 3. Experience distortion on ssb when the '232' is connected to the HF rig ?
-
- Here's the fix:
-
- There are two 680 ohm resistors in the audio output circuits of the TNC (noted
- R151 and
- R152 in the schematic). These resistors are located on the pc board near the 5
- pin output
- jacks of the TNC ("Radio 1 & 2"). Carefully cut or unsolder one end of the
- resistor nearest
- the jack used for the HF rig. Bend the resistor away from the circuit board
- slightly. That's
- all there is to it !
-
- THIS REMOVES A GROUND LOOP introduced into the HF audio circuit which in turn
- causes the distortion, even when the TNC is off. If you are using AFSK on HF,
- you may
- have to readjust the mic gain control and/or the TNC level pot for proper
- drive/ALC level,
- but the SSB distortion will be gone !
-
-
- Mod for PK232MBX
-
- For those who are experiencing the same problem as I do: At some extreme
- condition,
- when it is getting really difficult copying a station, doing some digital mode
- on HF... Well
- what I want to explain is: with some conditions like when you still can copy a
- station
- while increasing your AF (Audio) gain, but your PK232MBX cannot do so ( still
- decoding ),
-
- There is two ways of hooking your PK232MBX up, the first one: your audio out of
- your rig
- is variable ( probably like an audio jack ) you do not have to bother with this
- modification.
- If you have plugged into the acc jack (independent level of AF for any change
- of AF gain)
- You can try this modifications with good success.. In my settings: My rig is a
- TS440 and
- the PK232MBX is plugged into the 13 pin din socket. The mod is to change R34 in
- the
- PK232MBX the factory value is 10K, change this to 4.7K. This mod was discussed
- with
- AEA and confirmed to be workable.
-
-
-
-
-
-
- The above information has not been proof read or checked for grammar, but is
- simply
- a collection of the subject matter. I take no credit for any of the ideas !
- The mod
- for SSB distortion does work, I know of one other station other than mine that
- has
- performed this mod.
-
- Now that Red Adar ( Spelling perhaps ? ) has retired. Perhaps some of us can
- purchase
- some flame proof suits to ward off the knuckle headed clowns who persist in
- nailing
- anyone they can who might just want to post something to this list.
- WA2MZF
-
- ------------------------------
-
- Date: Wed, 16 Feb 1994 16:35:01 -0500
- From: titan.ksc.nasa.gov!k4dii.ksc.nasa.gov!user@ames.arpa
- Subject: What the heck are these?
- To: info-hams@ucsd.edu
-
- In article <45@ted.win.net>, mjsilva@ted.win.net (Michael Silva) wrote:
- > I've got a bag full of 3-pin semiconductors, small-transistor
- > sized. They are marked either "U1994" or "U1837E". For some
- > reason I think they might be RF JFETs. Anyone know what they are
- > and what they might cross to? The manufacturer's logo looks like
- > the bottom half of an 8-sided compass rose (4 polygons). Thanks.
-
- Mike-
-
- These are both N-Channel JFETs, manufactured by Teledyne Semiconductor. I
- found them in an old "selector guide" dated 1973. It lists Teledyne at
- 1300 Terra Bella Avenue, Mountain View, California 94040, Phone
- (415)968-9241. However, in 20 years, the company could have moved or gone
- out of business!
-
- The U1837E is listed as a member of the "2N4391 Family" General-Purpose
- Switch, in the plastic package category. No lead configuration was given,
- however. Its data is:
-
- rDS(ON)(Max.) 30 ohms
- VGS(OFF) (Min.-Max.) 5.0-10 V
- ID(OFF)(Max.) 0.2 nA
- Ciss(Max.) 16 pF
- Crss(Max.) 5 pF
- BVGSS(Min.) 40 V
- IDSS(Min.-Max.) 30---mA
-
- Typical Characteristics curves for the 2N4391 family, are shown for Yfs,
- rDS(ON), IDSS and ID.
-
- The U1994E (rather than the non-E) is listed as a member of the "2N4416
- Family" VHF RF Amplifier - 400 MHz, in the plastic package category. Its
- data is:
-
- Yfs(Min.-Max.) 4,500-7,500 micromhos
- IGSS(Max.) 100 pA
- VGS(OFF)(Min.-Max.) ----6 V
- IDSS(Min.-Max.) 5-15mA
- BVGSS(Min.) 30 V
- Ciss(Max.) 4 pF
- Crss(Max.) 1.0 pF
- 400 MHz N.F.(Max.) 4 dB
-
- Again, Typical Characteristics curves for the 2N4416 family, are shown for
- Yfs, rDS(ON), IDSS and ID.
-
- I hope you can find someone with more up-to-date information, especially
- the lead configuration.
-
- 73, Fred, K4DII
-
- ------------------------------
-
- Date: Wed, 16 Feb 1994 22:22:05 GMT
- From: elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!howland.reston.ans.net!news.intercon.com!udel!news.sprintlink.net!direct!kg7bk@ames.arpa
- To: info-hams@ucsd.edu
-
- References <01H8X21VF1N6ECXSL5@tntech.edu>, <CLAz5v.Iss@news.direct.net>, <2jtq4nINNl22@abyss.West.Sun.COM>net
- Subject : Re: John Ramsey
-
- Dana Myers (myers@sunspot.West.Sun.COM) wrote:
- : >But my approach was not, "you idiots don't know your ass from..."
-
- : The implication is that Jeff's approach was this. Do you knoe something we
- : don't?
-
- That has been Jeff's approach toward Ramsey for the year that I have been
- on Internet.
-
- : In the 20 or so years I've been building kits, especially Heathkits,
- : I've had at least 90% of them work from the moment the power was turned on.
-
- Your experience has been different from mine. I had 100 times the trouble
- out of Heathkits that I had with Ramsey kits. You probably weren't around
- for the '50s when it was a miracle if a Heathkit ever worked.
-
- : Err... settle down Cecil; I think Jeff is mentioning that the assembly
- : manual didn't say you needed to stretch the coil.
-
- Ramsey immediately responded with that information and included it in the
- next manual printing.
-
- : I will say, flat out, that John Ramsey indeed bad-mouthed Jeff Gold by
- : name during a phone call with me despite the fact I asked him not to do so.
- : * Dana H. Myers KK6JQ
-
- I agree it was probably not a "politically correct" thing to do. But John
- may (or may not) share my attitude that anyone who calls another person
- a liar in public is less than human. And John probably doesn't appreciate
- his name being a line item on Internet so how about us taking this off
- line?
-
- 73, Cecil, kg7bk@indirect
-
- ------------------------------
-
- Date: Wed, 16 Feb 1994 21:15:55 GMT
- From: elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!howland.reston.ans.net!news.intercon.com!udel!news.sprintlink.net!direct!kg7bk@ames.arpa
- To: info-hams@ucsd.edu
-
- References <1994Feb14.144321.10990@tellab5.tellabs.com>, <CL8qE6.Lxz@news.direct.net>, <1994Feb16.130055.21938@tellab5.tellabs.com>
- Subject : Re: HAMBLASTER INCORRECT STATEMENTS
-
- John W. Albert (jwa@tellabs.com) wrote:
- : >: ... for Ham use you only need an... 8 bit A/D.
-
- : The Hamblaster has a 14 bit A/D.
- : Jack Albert WA9FVP
-
- I'll rephrase my question... if "for Ham use you only need an... 8 bit A/D",
- why does the Hamblaster have a 14 bit A/D?
-
- 73, Cecil, kg7bk@indirect.com
-
- ------------------------------
-
- Date: Thu, 17 Feb 1994 20:46:36 GMT
- From: agate!howland.reston.ans.net!europa.eng.gtefsd.com!library.ucla.edu!csulb.edu!csus.edu!netcom.com!jfh@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <N4HY.94Feb9140932@harder.ccr-p.ida.org>, <1994Feb11.140442.11801@tellab5.tellabs.com>, <CLAC34.Dq@cscsun.rmc.edu>om
- Subject : Re: Hamblaster update
-
- dtiller@cscsun.rmc.edu (Dave Tiller) wrote:
-
- >Is it just me, or is anyone else wondering why we're being continually
- >bombarded with a blatantly commercial posting? I'm glad they've taken
- >the initiative to make a new piece of hardware for hams, but I don't think
- >this is the proper forum for their continous ads disguised as status
- >reports.
-
- It's hard to think of them as ads when the product doesn't even exist yet.
- In any case, there's no blanket prohibition against advertising on the net.
-
- I don't plan to buy a Hamblaster (I already have a SoundBlaster 16 ASP),,
- but I think the progress reports are mildly interesting.
-
- --
-
- ------------------------------------------------------
- Jack Hamilton USMail: POB 281107 SF CA 94128 USA
- jfh@netcom.com Packet: kd6ttl@w6pw.#nocal.ca.us.na
-
- ------------------------------
-
- End of Info-Hams Digest V94 #170
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