Re: [Drakelist] TR5

Steve, Yes, my TR-5 vfo operates backwards from my TR-7. Clockwise decreases frequency. Tom, AG9X On Wed, Mar 8, 2017 at 8:02 AM, Steve Cochrane wrote: > Thanks guys, I thought I remembered seeing somewhere a long time ago that > it did operate backwards, but I wanted to make sure. I have tw

Re: [Drakelist] drake tr7 repair

http://www.rldrake.com/support-repair.php On Tue, Jul 23, 2013 at 10:19 PM, dave streight wrote: > who does repair on the drake tr 7 radios?? > > ___ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/dra

Re: [Drakelist] TR7 freq counting up

Sheldon, That means the PLL is out of lock. The most common cause is mild corrosion on the card contacts. Re-seating the cards will usually fix that problem plus a few problems you haven't yet discovered. Take care not to bump the pots on the right front. Tom, AG9X On Sun, May 19, 2013 at 1

Re: [Drakelist] Article by Garey K4OAH

All, Sorry for the confusion. If anyone fails to get a copy, please email me off-list and I'll do waht I can to help you. And while you're asking for back issues, the Feb 2012 issue has an article about clandestine radio communications that I just had to share with the XYL. She found it fascina

[Drakelist] Article by Garey K4OAH

I downloaded my April issue of "The K9YA Telegraph" today and was happy to find an article by Garey Barrell. Titled 'Genesis,' part 1 tells of his getting started in ham radio. The publication is available as a downloadable pdf that you can sign up for here: http://www.k9ya.org/k9ya_telegraph1.htm

Re: [Drakelist] Drale Fuse

Gary, In the TV repair shop we used to use a pair of S-clips to bridge a regular fuse across a blown pigtail fuse. The closest thing I've found is this: http://www.mouser.com/catalog/specsheets/cooperbussman_3434.pdf 73, Tom AG9X On Thu, Oct 13, 2011 at 12:24 PM, GARY ELLIOT wrote: > ** > G

Re: [Drakelist] double posts??

Bud, I received just one copy of your email. And the same with recent messages from others. Tom, AG9X On Sun, Oct 2, 2011 at 11:04 PM, sebdesnCC wrote: > Wonder if its my machine , I get most messages,from this list, in groups > of 2 that are identical,and sent at the same time..Is this s

Re: [Drakelist] Sign on

Dave, At http://mailman.zerobeat.net/mailman/listinfo/drakelist it says "Once a month, your password will be emailed to you as a reminder." Ask your friend to search his email for an email with this Subject: "zerobeat.net mailing list memberships reminder" The last one was sent on Sept 1, 2011

Re: [Drakelist] R-7 SSB audio distortion

Jose, I experienced the same problem with my TR-7. I de-tuned the last IF transformer a little and things improved. My 2nd IF/Audio board uses a diode bridge. I wish I had the MC1496 product detector. 73, Tom, AG9X On Sat, Sep 3, 2011 at 3:47 PM, Jose V. Gavila wrote: > Hi all, > > I am

Re: [Drakelist] Basic electronics

Neil, In a Class A amplifier a D.C. bias voltage is applied to the input grid circuit. This prevents the A.C. output signal from being rectified. Since a Class A amplifier is the least efficient, other classes of amplifiers are used for CW, FM, etc. -Tom, AG9X On Sun, May 1, 2011 at 4:23 PM,

Re: [Drakelist] Drake TR7: Lee Blue Filter Foils

Try here: http://www.wb4hfn.com/DRAKE/DrakeArticles/TechTips/Drake-Tech-Exchange-17.pdf On Sat, Apr 16, 2011 at 4:59 AM, Karl du Roi wrote: > Good morning, > > I am going to swap outaged blue filter foils at my TR7 and RV7 as well. I > found that foils from LEE could be a good solution. I am u

Re: [Drakelist] Fwd: First Jet Flight

At 5:17 into the video, the 'mission control center' looks like it's using ARC-5/T-21 equipment which looks a lot like this: http://hug-a-bug.com/arc5b.jpg -Tom, AG9X On Fri, Feb 18, 2011 at 4:44 PM, Morrell Siegel wrote: > can anyone identify the radio the ground crew is using? mickey wa6fiz

Re: [Drakelist] Upgrade/Maintenance On All Email Accounts.

Be sure to ignore the message below requesting your email address and password. -Tom, AG9X On Sun, Jan 16, 2011 at 4:46 AM, Technical Support wrote: > Dear Email Users, > > Due to numerous complaints on ongoing recent spam activities on your > account, vital maintainance will be conducted on o

Re: [Drakelist] Drake 1A Coil Slugs

Paul, I took a look at the schematic and don't see slugs indicated for 20 - 10 M. If they were originally present but now missing, I'm guessing you'd not be able to peak the antenna trim cap for maximum band noise on those bands. Hopefully someone with a 1A will respond. -Tom, AG9X On Sun, Ja

Re: [Drakelist] Kano Laboratories

-- Forwarded message -- From: Date: Sun, Jan 16, 2011 at 1:56 PM Subject: Re: [Drakelist] Kano Laboratories My forwarding to Drake list not working, apparently: Please forward Kano Labs direct order line # is 1-800-311-3374, ORDER DIRECT and pics of master card, visa, PO (purch

Re: [Drakelist] Kano Laboratories

James, Good question. I haven't tried it on a rusty chassis yet, just rusty bolts. If anyone's interested, you can order 2 aerosol cans for $12 delivered to your company address. Details here: http://www.kanolabs.com/google/ -Tom, AG9X On Sun, Jan 16, 2011 at 1:30 PM, James wrote: If it w

Re: [Drakelist] Kano Laboratories

My wife purchased Kroil to loosen her antique sewing machines. It's sold through Amazon.com. 8 oz can $8.95 plus shipping. Tom, AG9X On Sun, Jan 16, 2011 at 10:52 AM, Bob Loving wrote: > James Barrie and all: > > I've used Kroil and SiliKroil in the past and it does wonders on frozen > bolts

Re: [Drakelist] Searching the List

Curt, Go to the Drakelist home page athttp://www.zerobeat.net/drakelist/ Click on *The NEW Drake Mailing List Archive* It will take you to mail-archive.com where there is a search box at the top. -Tom, AG9X On Mon, Nov 29, 2010 at 12:19

Re: [Drakelist] TR-7 Oscillating?

Dave, Does the built-in TR-7 reflected power meter jump to infinity? A couple troubleshooting suggestions: Disconnect the antenna and feed the TR-7 directly into a dummy load. Disconnect the mic and see if this happens on CW. Good luck with it. Tom, AG9X On Sat, Oct 16, 2010 at 9:19 AM, K8

Re: [Drakelist] TR7 dead receive

Paul, Make sure there is continuity between the 'EXT RCVR' J4 to 'EXT ANT' jacks. If not, add a short jumper cable. -Tom, AG9X On Sun, Oct 10, 2010 at 1:27 AM, Drakedude wrote: > Took my TR7 that was in temp controlled storage for about one year and found > I have no receive. Radio worked 100

Re: [Drakelist] TR-4C RCV / XVCR switch

Joe, If the switch has not been abused, cleaning the contacts should restore it to 100%. A little bit of Caig DeOxit followed by exercising the switch will probably remove any built up oxidation. The RF Output issue could be soft final tubes or the driver tube. Which band you're getting 65 W out

Re: [Drakelist] Wiring SignaLink USB interface

Sanford, Attached is an image of the pinout of the TR-7 Accessories socket. It confirms Don's comments. -Tom, AG9X On Thu, Jul 29, 2010 at 12:07 PM, Don Cunningham wrote: > Sandy, > That "accessories" jack is NOT designed for the use you want.  It is only > for accessories like the RV7 or RV7

Re: [Drakelist] Tr-7 Display

Has anyone ever seen a TR-7 without a DR-7 ? I've never heard of one. Tom, AG9X On Wed, Jul 7, 2010 at 12:00 AM, Kirk Smith wrote: > Since the TR-7 uses both analog & digital displays, will it still function > if the digital display/card were to go bad? > _

Re: [Drakelist] Deoxit

I like the 100% concentration with the needle applicator. DeoxIT® D100L D-Series Needle Dispenser, 100% solution, 25 ml You only need a little bit and the sprays and brushes only encourage you to use too much. -Tom, AG9X On Mon, Jun 28, 2010 at 6:04 PM, Charles Ring wrote: > Looking to clean c

Re: [Drakelist] L7 mod for 10 meters

That should have read: The domestic L-7 without the 68 pf input capacitor acts a lowpass filter on 15 Meters. Adding the 68 pf on the input converted it to a Pi bandpass filter. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.

Re: [Drakelist] Drake TR-7A problem.

Check the REF/FWD switch. Push it in and out a few times and leave it in the 'out' position. 73, Tom, AG9X On Sat, Dec 26, 2009 at 11:57 AM, Bent wrote: > Hello All > > First of all a Merry Christmas to all of you. > > I got a problem with my TR-7A. > Output power is not more indicated on the

Re: [Drakelist] TR7 Help please

Adrian, There are two boards that are commonly found with a TR-7. One is the board needed to operate the rig when the DR-7 digital display board is removed for testing or alignment. It is labeled C3990W and is shown here: http://incolor.inetnebr.com/jshorney/tr7ext.htm The other is the board wh

Re: [Drakelist] L4B Question

"meters light, but tubes are dead" So you're saying that the tubes do not light up at all? On Sun, Oct 25, 2009 at 9:55 AM, Richard Radke wrote: > All, > > I was working the CQ WW DX Friday night (C line and L4B) on 40, picking up > a couple "new ones", cndx here were just so,so. All was we

Re: [Drakelist] Drake Tr7 with cw problem

Frank, On 80 meters into a dummy load on CW you should get around 140 watts when the ALC light just turns on. As you go up in frequency the output will decrease. On 10 meters, you should get over 100 watts CW into a dummy load when the ALC light just starts to turn on. I wouldn't run any tests w

[Drakelist] 4 Board set for TR-7 modifications

I have a copy of the 1992 Communications Quarterly article "Improving the Drake TR-7" by Scott Prather, N7NB The features provided are - Full receive coverage from 10KHz to 30 MHz with no reduction in sensitivity across the entire range. - Smooth, quiet, full break-in (QSK) CW operatio

Re: [Drakelist] tr7 turn on problem

Jay, Does this occur only in CW? Early TR-7s required a mod to prevent them from waking up in transmit when turned on in CW mode. Perhaps that hasn't been done to yours. The "Pop mod" was done to the 2nd IF/Audio board. It connected R1112 to the +10R line instead of +10 CW line. Also added a

Re: [Drakelist] tr7 turn on problem

Bob, Sounds like the antenna relay to me. To test that theory, attach a lead to the VLF Antenna input on the rear Aux connector and see if signals get stronger. That input bypasses the antenna relay. Be careful not to transmit with the VLF Antenna attached. I attached a picture of the Accessor

Re: [Drakelist] TR-7 Question

Ron, I don't disagree with "in some cases purchasing a TR7A is a buyer beware." But I must say that IF the TR-7 has had all the modifications that upgrade a TR-7 to a TR-7A, the only remaining significant difference is the use of a '1496 balanced modulator in the 2nd IF/Audio board rather than th

Re: [Drakelist] My Drake TR-4C restoration WEB page

Jose, That's an awesome improvement! Tom, AG9X On Thu, Sep 11, 2008 at 6:27 AM, Gary Poland <[EMAIL PROTECTED]> wrote: > Thanks for the pictures Jose, good job! > > Gary > > ___ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobe

Re: [Drakelist] SP75 Speech Processor and C Line

John, I have a friend who used the DX Engineering RF Speech Processor on his C-Line with great results. If you use it at settings which actually improve your audio, I don't think you'll have a problem. My experience with a Sherwood 7-SP MK III speech processor installed in my TR-7 is that about

Re: [drakelist] TR7 PTO Frequency Stability

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- John, On the website of Carel Mulder, PA0CMU are two versions of what's called a "Huff & Puff" stabilizer circuit

Re: [drakelist] TR7 2nd IF Audio board

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- David, You'll find the answer here: http://www.dproducts.be/Drake_Museum/page_1.htm Tom, AG9X On Sun, May 25, 2008 at 10

Re: [drakelist] re TR7 PTO/troubleshooting in general

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- On Thu, Mar 6, 2008 at 10:32 AM, <[EMAIL PROTECTED]> wrote: > For example, the service manuals don't tell you, for a

Re: [drakelist] RV-7 Warble while tuning a signal.

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Mike, Do you have a braided ground wire in the RV-7 PTO? See http://www.zerobeat.net/drakelist/ptogrounding.html or http://www.

Re: [drakelist] dsp

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Try this instead: http://www.gapantenna.com/Files/anemreview.pdf "A REVIEW OF THE BHI AMPLIFIED NOISE ELIMINATING MODULE U

[drakelist] Re: Drake TR5 schematic

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Thanks to all who have offered a copy of the TR5 schematic. 73, Tom, AG9X On 4/4/07, Tom Evans, AG9X <[EMAIL PROTECTED]> w

[drakelist] Drake TR5 schematic

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- I'm looking for a TR5 schematic in either paper or electronic form. I was unable to locate one online at BAMA or WB4HF

Re: [drakelist] TR7

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Peter, I also have a 1.8 KHz SSB filter. When I switch from the 2.3 KHz filter to the 1.8, the extreme lows and a little of the

Re: [drakelist] RE: audio waveform has warble/hum on it!

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Frank, Inspect the PTO to see if it has the "braid" mod. Without it, the frequency can jump around ever so slightly

Re: [drakelist] Substitution Filter Upper Low of TR4-c

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Alignment instructions from TR-4C manual at http://www.dproducts.be/drake_Museum/TR4.pdf 5-9 9.0 MHz Oscillator a. Let T

Re: [drakelist] L7

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- http://www.geocities.com/maxmartin3/drake/tech.html L7 Power Supply schematic http://www.geocities.com/maxmartin3/drake/l7ps.j

Re: [drakelist] PS7 Voltage Regulation Problem

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Kevin, Here's the PS-7 manual: http://www.wb4hfn.com/DRAKE/DrakeManuals/PS7/Manual_PS7.htm Here's a better version o

Re: [drakelist] Re: Drake TR-7 S/N 5586

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Bob, Defective PIN diodes can cause this. I'll forward you a thread from this list. Tom, AG9X On 3/1/06, Robert C. Ab

Re: [drakelist] Certain R4B's may be factory wired for hum

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- I just repaired my high-end Sony STR-GX67ES receiver where an electrolytic capacitor was installed backwards at the factory. T

Re: [drakelist] Lost subscibers

"Tom Evans, AG9X" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- If any of you Drakelist members want to try Google's free email (gmail), I'll be glad to send you an invitation. Drop me

Re: [drakelist] LF coverage?

Craig, You have to remove the DR-7 board to reach the AUX-7 board. No need to remove the front panel or mess with the bandswitch. I also have an AUX-7 board with homebrew RTM-7 modules for 0 - 500, 500-1000, 1000-1500 and the WARC bands. Since you have the AUX-7 board, you might as well build