[Drakelist] R-4B Notch Adjust
How is the slug in the r-4B notch adjustment adjusted. From the rear of the can? Can’t see in there, and haven’t found a tool yet that will grab anything. Or is it done with the little spring tail that connects to the notch control? Thanks … Grant NQ5T ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Blonder-Tongue Buys Drake
I suspect it means the final nail in the coffin of one of a long list of ham radio's great companies (and great products). It's too bad, although Drake has been out of our business for a long time. Their legacy will live on for a long time to come. I've passed on my B-line and C-line, and was planning to sell my TR-7/RV-75, but I think I'll hang on to it for a while. On the plus side, the torch has been passed to some excellent new ones here at home … Elecraft, Ten-Tec, and Flex. And somewhere down the line, they'll pass on the torch .. and so it goes. I just wish I hadn't sold my 1-A last year :-) Grant/NQ5T On Feb 2, 2012, at 3:12 PM, kc9...@aol.com wrote: Oh...interesting...I hope that means they will be building the C line, TR4-C etc...again, brand new! Would create some nice job opportunities.. 73, Lee ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Ever seen a Henry 2-B Mechanical Filter ad on?
info is here, including installation, wiring, schematic, etc. http://www.dproducts.be/drake_museum/accessories.htm Grant/NQ5T On Oct 27, 2011, at 4:43 PM, Paul Gerhardt wrote: Here is something I have never seen Henry Radio Mechanical Filter for a 2-B. Does anyone know which IF freq this worked on? fleabay item # 190593633063 If you want to see a pix of it in the next day or two. -- Paul Gerhardt K3PG http://pgerhardt.blogspot.com QRP ARCI 6674 FP 274 You must do this work with love or you fail. -- John Muir, from How to Keep Your Volkswagen Alive ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] So if crystals change frequency ...
They had pencil, paper, slide rules, and brains. The modern computer may be faster, but not necessarily smarter. I still carry a Decilon around with me.Just to convince myself that 64-bit floating point doesn't guarantee a better or simpler (or necessarily faster) answer :-) Grant/NQ5T While the Bell System used astonishingly complex filters for carrier telephone service in the 1950's calculating them without modern computers must have been extremely difficult ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Sherwood Engineering
Sent from my iPhone On Jul 27, 2011, at 1:47 PM, Wolfgang Peringer dk...@bingo-ev.de wrote: Hello: I have tried several times to contact Rob Sherwood to place an ordner but did get no response. Is he still in business? Any information welcome. vy 73 Wolfgang dk7cy ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] D104 and TR7
Why wouldn't you use the preamp? While there may be better preamp circuits out there, even the preamp in an amplified Astatic stand sounds decent if it's used properly. Turn it all the way down. Set the rig's mic gain at about 10:00, and then SLOWLY advance the gain of the preamp for normal modulation. The biggest problem happens when you just crank it all the way up for that good buddy effect. I've used amp'd d104 and 10D mics on rigs of all kinds (including Drake's of all kinds without getting cr*p for audio. The preamp eliminates the need to be concerned about matching the input Z of the radio and eliminates the effect of the input Z of the radio on the freq response of the mic. Grant/NQ5T Sent from my iPhone On Jul 6, 2011, at 8:47 PM, K9sqg k9...@aol.com wrote: Woody, I've heard of numerous people using the D-104 with the TR-7 as discussed on the Drake nets. Values I've heard range from 470K to 1.3 meg in series with the mic hot lead. If there is a speech pre-amp in the mic, it should not be used. 73, Evan, K9SQG -Original Message- From: Woody ko4...@gmail.com To: Drake List drakelist@zerobeat.net Sent: Wed, Jul 6, 2011 9:19 pm Subject: [Drakelist] D104 and TR7 Does any one know the mod to make the 104 work well with the TR7, I was told you added a resistor of some value but they didn't know the value or where to put it. I need to know it at the Mod's for Dummies level, I was a Toolmaker not a electronics man, well just enough to be dangerous and stay alive. Thanks Woody -- ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Amplified D104
444D -- hamfest, e-whatever. Not expensive. Great mic with a TR-7. Sent from my iPhone On Jul 6, 2011, at 9:40 PM, Woody ko4...@gmail.com wrote: I clipping. So I'm trying to find a cure without going to a 7075 for close to a hundred bucks and having to hold it. Woody -- ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] D104 and TR7
That's true. But if one has an amplified stand it will work fine, too. Sent from my iPhone On Jul 6, 2011, at 10:13 PM, K9sqg k9...@aol.com wrote: Grant, There is no real need for the pre-amp circuit when the D-104 is used with the TR-7, more than enough gain exists. Don't have to replace the battery every year or two either. At any rate, it is personal preference. 73, Evan - ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Low Mic Input
That sounds perfectly normal. You shouldn't expect to see much more than 30-35 watts AVERAGE power with normal speech. So unless you're using a peak reading watt meter, there may be no low modulation. Grant/NQ5T Sent from my iPhone modulation , at wistle the power excced the 150 watts but in the normal modulatión is around of 30, 35 watts , ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] First Rigs - If you could do it all over again, what would your first station be?
Started about the same way. 1959. DX-40, one 7198 crystal, and a borrowed BC-455. When I upgraded to a BC-312N, I thought I'd died and gone to heaven. After passing the General the next year I was rewarded with a 2nd hand SX-100. Used the DX-40 well into high school until I was presented with a Globe Champion 350 my dad found for sale for $25! Never owned a Drake of any kind until I started collecting and using the catalog contents of my youth. Been through a lot if it including some of the marine products. All time favorites are the 1-A and 2-B. All that's left of that today is a TR-7/RV-75 which I keep as a backup radio. Grant/NQ5T My first rig was a command set receiver on 40 meters along with a factory built Knight T-60 bought from another more affluent teenage ham. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Dewsoldering
Dew soldering is particularly difficult :-) Better in low humidity, or later in the morning ... On Mar 29, 2011, at 2:45 PM, Thomas C. Dailey - Dailey Services, LLC wrote: ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Wanted 4NB Noise Blanker
Interesting in the different perspectives. I always found my R-4C to have a noise blanker that was a standard of comparison for anything else. At least on the noise here, it worked very well with a GUF-1 installed. Dynamic range is another issue, but the NB was outstanding. Grant/NQ5T On Feb 1, 2011, at 6:18 PM, John Hudson wrote: FWIW, the mod's to my Sherwood R-4C do allow you to use the standard 6kHz front end filter. The 4NB noise blanker has only been marginally successful, at best, even when I revert to the standard filters. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] guf1 filter
http://www.inrad.net On Jun 20, 2010, at 9:12 AM, AirRadio wrote: Where can I buy a GUF-1 filter for my R-4C? 73 Max M0GHQ I am using the Free version of SPAMfighter. We are a community of 7 million users fighting spam. SPAMfighter has removed 3085 of my spam emails to date. The Professional version does not have this message. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR-5 - How Many Were Made?
Mine is serial #1505. Grant/NQ5T On Nov 5, 2009, at 5:49 PM, gypsym...@aol.com wrote: rfch...@verizon.net writes: Can someone familiar with the TR-5 please clarify these numbers and the rumor? Ed K2ZE Ed, NOW you have my curiosity up too. I own # 1386 that I purchased new. Steve Whitefield was one of the two lead engineer types on the TR5 at that time for Drake. He is chairman of our local radio group (MARA Mound Amateur Radio Association) and I will ask him if he knows. In addition Bill Frost who retired from Drake last Friday, monitors this list and lives close by, I will try and verify what he knows. My next potential information source would be John Kriner. Carl Hibbard Dayton, OH PS the sunken ship is definitely blarney. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Drake 1-A Question -- Missing coil slugs
I purchased a 1-A several years ago (probably in the late 90's), and overall it is one of my favorite collectible radios. It worked reasonably well -- seemingly -- so until yesterday I had actually never even bothered to take it out of the cabinet. Just used it casually as an appliance radio from time to time. Decided I finally found the correct Round To-It .. and that it could possibly benefit from an alignment at least. Took it out of the cabinet, marveled at the extent of the copper corrosion, etc., noted there were a few paper caps that might benefit from at least a check if not replacement. AND dIscovered that the coil slugs for the Antenna coils (closest to the back panel) in the 20, 15 and 10 meter bands didn't just need an alignment check -- they were missing, gone, nada, vanished, nowhere to be found. So -- a question or two: -- Was there some EC that called for removal of these slugs for some reason? -- and if not, does anyone have a beater/junker 1-A with three slug/ screw assemblies still intact (for a price of course)? Or a Drake spares hoard with some of these slugs in the larder? It appears that all of the slugs in the three sets of similar coil assemblies are identical, so any three of the slugs from any of the coils might work. -- or, can anyone suggest a source for some slug material close to what should be in there? I can always epoxy a brass screw to the slug material. Thanks ... Grant/NQ5T TR-5, TR-7, 1-A ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[drakelist]
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- Unsubscribe drakelist -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist]
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- Oops, sorry ... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Grant Youngman Sent: Monday, August 27, 2007 8:15 PM To: [EMAIL PROTECTED] Subject: [drakelist] Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- Unsubscribe drakelist -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] Drift on TR7
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- One simple thing you can try is to just remove the pilot lamp from the analog VFO dial -- you don't need to see it with the digi display anyway. The heat from this lamp is a known cause of warmup drift. There is also a blue led replacement module (http://home.wi.rr.com/n9oo/products/tr7lamp/d7lamp.html) for both the meter and VFO lamps, which does not generate the heat of the incandescant bulb and also solves the where do I find blue filters problem. I don't think the 1 Khz up/down drifting around after warmup is at all normal. Grant/NQ5T TR-5/TR-7/RV-75 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Bent Sent: Saturday, August 25, 2007 12:55 PM To: [EMAIL PROTECTED] Subject: [drakelist] Drift on TR7 Am a happy new owner of as Drake tr 7. The rig checks out so far, on all fronts. There does seem to be some drift in frequency. After it warms ups, about 45 minutes, it pretty much stablilizes, but seems to wander up and down a bit. About 1khz +/-. I certainly can live with this problem. is this typical for the TR7? Any sage advice from anyone. thanks. -- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] Noise Blanker discussion
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- found any of them to be of much use, if any. Most of these are/were designed for pulse type noises, which, depending on your location and application may or may not be needed. That's what a Noise Blanker is for -- pulse type noise, electric fences, ignition noise, power-line noise, your neigbors old touch controlled lamp, and the like. They won't rid your audio of hiss, miscellaneous band grunge, thunderstorm static, etc. because these tend to be glops of noise rather that pulses of noise. The blanker in the TR-7 (NB7A) is very good, and the blanker in the R-4C is phenomenal. Practically speaking.Are they worth it? And,...outside of mobile operating, what noises are they effective? In my opinion, yes. If you've ever suffered throug the power company repeated telling you that the s-9 buzzsaw running on your receiver isn't their fault, you'd understand why :) Again, pulse noises -- ignition, power transformer arching (not in your radio, at the power pole), unfiltered electrical devices controlled by triacs, etc. But they won't necessary get rid of everything -- it depends on the blanker characteristics, pulse width of the noise, filter width and characteristics ahead of the blanker, etc. Someone also may wish to discuss other noise reduction alternatives such as the ANEM which el34guy mentioned. DSP noise reduction devices tackle a different problem (there are DSP-based noise blankers, but that's a different beast. It doesn't help much to blank a noise pulse in the receiver's audio chain -- it needs to be done BEFORE the noise pulse gets to the AGC). These basically reduce his and clean up or reduce some other forms of non-pulse noise. They can take a noisy 75M band at night and (at least on strong signals) give you much quiter copy. The end objective should always be to improve Signal to Noise ratio. Sometimes they do that, and sometimes they don't. Nothing is perfect :) Grant/NQ5T -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] External DDS experience with Drake equipment
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- Good question. I've been looking for a similar solution for the TR7. For the TR-7 (or R-7/TR-7 combo) this is worth a look. May seem pricey, but it's really no more expensive than an RV-75. Down to 1 Hz or 10 Hz per step. http://www.mistyhollowenterprises.com/resources2.html Grant/NQ5T -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] R7 questions
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- The only difference between the 4 kHz and 6 kHz filter with the synchro-phase AM detector is the selectivity. I had both filters, and always thought the radio sounded better with the 4 Khz than the 6 Khz. Both were in the radio, and I always chose the 4 Khz, with a little PBT cranked in as the better sounding option. YMMV. I sold my fully loaded, practically NIB R-7 (serial #117) over the weekend, and to make myself feel better after suffering through a bad case of seller's remorse (sigh!), set up my TR-5 station and have been been enjoying the blazes out of it. Too bad the TR-5 doesn't have an AM option :-) Grant/NQ5T -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] R7 questions
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- The following accessories and modifications have been added to update your R7 to an R7A for more versatility. The biggest difference, aside from the R7A coming with all the options (and certainly, the NB7A was worth having), is the plastic strip across the top with R7A on it. In today's market, the biggest difference is that that little plastic strip causes the price of the radio to skyrocket, for reasons only PT Barnum could imagine ;-) Grant/NQ5T -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] OT: Difference in Vibroplex bugs
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- The bug on the desk MOST of the time is a GHB optical bug, but that's a different story :-) No one ever gave me an award for typing ... That should be a GHD optical bug Grant/NQ5T -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
RE: [drakelist] OT: Difference in Vibroplex bugs
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- If I were going to find one of these to buy and USE are there any concerns using the really old bugs vs. using the new bugs? Generally speaking, the older bugs work just fine, if they're complete and not bashed up. I've found some issues with badly burned up contacts on some of them. My personal favorites are the Lightning Bugs and I have several of different vintages. They all handle about the same, although I'm stuck on a WW-II version (J-36) made by Lionel as the one I use most often. The bug on the desk MOST of the time is a GHB optical bug, but that's a different story :-) Grant/NQ5T -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] Web Forum -- was The EBAY Thread
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- I think it's time for the ebay thread to die. Please feel free to use the Web Based forum http://www.zerobeat.net/drakelist/phpBB2/ to continue the discussion. eBay threads or anything else, I just wish more people would use the Web forum :-) The original forum was a valuable resource, and the new one could be, too, if it were just USED more. Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
RE: [drakelist] QUESTION S: R-4 and 2-B IF bandwidth filtering
Grant Youngman [EMAIL PROTECTED] made an utterance to the drakelist gang -- If you want to listen to AM, why not use a receiver that was designed primarily to receive it ..? Just another grouchy opinion, maybe worth abt what you paid for it. Grouchy or not, it's a perfectly good opinion :-) Sure, a lot of radio's can receive AM, including all of the Drake 2-series, 4-series, etc., and comparisons can be drawn between which one of those is better in some sense. But some other radios are MUCH better at AM -- SP-600 variants, most any super pro, R-390 (better than R-390A, but harder to find working well), and many others. The R-388 is also a much better AM radio than the 51J4 (because of those pesky mechanical filter thingies), and won't compress your vertebra quite as much as a 390. In many respects, the R-388 ends up being one of the best of the lot (especially with an external sync detector, or at least outboard audio). Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] TR7-A Cooling Fan
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- I use my TR7-A mostly for short-wave listening, so I've unplugged the cooling fan to cut down on the dirt that might be drawn into the radio. Am I correct in assuming that this fan is only required if I'm transmitting? Any advice would be appreciated...73, David You're correct. Generally, the fan is only needed if you operate (transmit) in high duty cycle modes, e.g. RTTY, etc. Grant/NQ5T --- Grant Youngman /NQ5T http://www.globeking.com [EMAIL PROTECTED] -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] R4C NB pricing
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- ... ,snip Today a working unit sells on eBay from $125 to around $200.I don't know how many Drake manufactured but you don't see them for sale very often. I think the price is driven by supply and demand. I'll rant on this one. I think a big part of the problem is parts ... or parted out radios. In this sense. Some sellers pull all of the options out of a perfectly good complete radio and sell them separately. Noise blankers, crystals, crystal filters, calibrators, option boards, and most scummarily .. things like band modules for an HRO. You want to buy an HRO-5? You might have to separately purchase the radio frame, all of the band plugins (one at a time, plus one more sale for the storage box), the power supply, etc. In a competitive bid situation, by the time you're done that radio has cost a fortune .. and you probably still have an incomplete radio. I'm surprised in some cases that the knobs and tubes aren't also sold one at a time ...:-( Some poor schmuck actually trying to buy a whole radio pays the price. Next prospective seller sees the prices on options and his eyes glaze over as he begins to salivate at the thought of the bankroll; and he does the same. Slowly the prices creep. I'ts easy to see ... the same guy will have the radio (no options) and all of the options for sale separately. e-place or private sale .. same same. Happens all the time. Of course, the other expanation is that there just aren't enough of them to go around :-) Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: e: [drakelist] T4XC and D104
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- If that's the case (and I'm not doubting anyone's word here), it should be a simple matter to brew up a good low-noise op-amp configured as a unity gain amplifier with a suitably high input Z. Hang a pot across the output to attenuate in case the mic output is too high for those newer rigs. This I could be comfortable with. No need for a pre-AMP, in any case. Just a Z-matching buffer. That's probably true. Maybe something really simple like this source follower from the AM Press Exchange. http://www.amfone.net/AMPX/074_1.gif Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] T4XC and D104
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- Again, when signals are good, unprocessed audio seemes less fatigueing. When signals are weak to non-existant, the processor can make the difference between making the contact and not... I agree completely. It depends on what one means by processing. I think most people end up doing to much. I do believe that two specific types of processing are generally good, regardless of radio or microphone, and in the order I've described them. The first is a noise gate (downward expander). A good noise gate can really help keep your amp fan noise, the dog barking downstairs and other miscellany off the air. But not too aggressive, or it will make you sound choppy. The second is just a wee bit of compression (note I'm talking about audio compression and not RF processing). Again it's something that needs to be under done rather than over done, because too much audio compression will take all the dynamic out of your voice and doesn't sound good. But lightly done, it isn't obvious to the listener and will assist in keeping a reasonably constant audio level into the radio as your mouth to mic distance changes. Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: e: [drakelist] T4XC and D104
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- I've got an ols Turner '+2' amplified mike. I wonder if its the same thing for the CB crowd because I have an older similar Turner that's without the amp. While it's true that some of the preamps in the mics were designed for the CB bunch so they could increase their swing, the preamp in the D-104 (which is the only one I'm directly familiar with) is unnecessarily maligned. The problem is less the preamp than the misuse of the preamp. Sure, if you crank it all the way up and then wonder why you have lousy audio, well, you got what you deserved. If you set your rig's mic gain at a normal level ( say 9-10 o'clock) and then adjust the preamp gain until you get a normal modulation indication (meter reading or lamp flicker) you will avoid most of the problems. I've used a stock Astatic preamp'd base with a D-104 or 10DA head for years on both old gear and modern radios with no problems, and perfectly good undistorted audio. Without the preamp base you simply can't run a D-104 into a modern rig with its low input impedance. It will sound like crp. An unamplified D-104 works well in the typical high Z input of a tube type radio because the crystal element needs a high Z load. Replace the grid resistor with something at 5 or 10 megs (higher than stock in most tube-type radios) and it will sound even better, because that will restore what is often lost low end response. If you look at a D-104 spec sheet, the change in low end response with preamp input impedance is clear. Impedance matching is in part the reason for the preamp in the first place. Except that even the Astatic preamp doesn't have a high enough input impedance to get the D-104 to sound as good as it can. That can be fixed by simply increasing the value of the input resistor on the preamp. Many alternate simple preamp designs, some with variable input Z to allow tailoring of the mic's response are around also. The D-104 is an excellent element, and it's too bad that Astatic finally dropped it from the product line. Apparently, the primary reason was the difficulty of obtaining the Rochelle salt crystals. It has a nice rise in its frequency response which adds clarity and punch without the screaching-parakeet sound of elements such as the Heil HC-4. And it has a good low end, IF you operate it into a very high impedance. Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] TR-5 Serial Number Fun, So Far..
"Grant Youngman" <[EMAIL PROTECTED]> made an utterence to the drakelist gang -- On 16 Jul 2004 at 15:38, [EMAIL PROTECTED] wrote: So far 8 of you from the list have responded with their TR-5 serial numbers Been out of town, and couldn't look at the back of the radio. I have TR-5 #1506 Grant/NQ5T -- On Behalf of "Grant Youngman" <[EMAIL PROTECTED]> Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] pricing and the TR-5
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- On 14 Jul 2004 at 19:40, Ron Baker wrote: Jim, the TR5 is a fine radio and works well and was to be the solid state replacement for the TR4 series. I think the reason for the high value is its a rare item to find. Drake only manufactured 517 units, One more voice in the melee ... the TR-5 is a wonderful little radio. It's simple, sounds great on both transmit and receive, and is just a delight to use. The fact that not many were made may add to the price, but just having fun with it from time to time is enough reward. I've occasionally come up with the notion of putting mine on the block, but in the end I put it back where it belongs and hang on to it. Like the 1-A I can't bring myself to part with, either :-) Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] TR7 misc.
Grant Youngman [EMAIL PROTECTED] made an utterence to the drakelist gang -- Mike, I would NOT put in the lamp for the analog dial. It will make drift of the vfo much worse, And if there's one in there, remove it. There is a light for the S-meter, but no illumination specific to the bandswitch. Congratulations on your TR-7 .. they're (still) great radios. Grant/NQ5T -- On Behalf of Grant Youngman [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] Drake 2B
The two line is one of the most undervalued (this auction notwithstanding!) rigs around. I agree. I think the 2-B is a great receiver, chassis corrosion and all. Now a kilobuck for one is a different issue altogether, but then how often does a NIB radio come along? From the point of view of a serious collector (of anything .. radios, fine art, whatever), that may not seem like a bad price at all. Grant/NQ5T -- Submissions:[EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] TR-7 Genreal Info. Wanted
Hi All: First, where are the skeletons, specifically are there common failures that are difficult to repair either because of complexity or hard-to-find parts? In my experience, the TR-7 is a fine, reliable radio, with excellent transmit and receive audio. I have it paired up with a R-7 for transceive operation, but rarely use the R-7. You should definitely get your hands on a service manual. You'll need it if you have any kind of the problem. The most common misadjustment that causes problems -- bad audio (tinny, bassy), funky sideband response, etc. is the 10V regulator board and it's associated adjustments to place the reference oscillators in the right spot. But alignment is straightforward. I've had two failures on the digital display board, which caused frequency display problems. They were not difficult to isolate and repair, but might be a problem if you don't have experience tracing and debugging digital circuits. Second, if one of these radios does fail and needs servicing beyond my abilities, is reputable service easy to come by? There are guys out there who repair these things. One such person is here: http://www.siscom.net/~jandsuz/index1.htm. Besides that, there are a lot of people with experience that can help, and it's often possible to find complete boards, or parts units at not too unreasonable prices. Also, it's a good idea to look around for a set of extender boards. And then hope you never have to use them :-) But you can't service critical parts of the radio without them. Pulling, applying (sparingly) DeOxit, etc. to board contacts, and reseating is a reasonable preventive measure. You may also find that a previous owner has really stretched the limit on power output adjustments, and in my view there's no reason to stress the radio by pushing output to the max. Drift in the analog PTO is affected by heat from the pilot lamp on the analog display. A lot of people (me included) pull that lamp out. You don't need it as long as your TR-7 isn't one of the very early ones without the DR-7 (digital display). It was initially an option and not a standard feature. I wouldn't buy one without the digital display anyway. Finally, what should I be on the alert for when buying a TR-7 (common failures, expensive failures, etc.)? If you can get a few minutes with it before plunking down your cash, I'd try to check it on all bands .. at least to make sure the display and asociated digital hardware is working properly. Thats the only place I've ever had a failure with one. Grant/NQ5T -- Submissions:[EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] R-7A/RV-75 Question
Hello, I have recently obtained an RV-75 remote VFO for my R-7A. I notice that when the RV-75 is plugged in to the adapter on the rear of the R-7A, and turned on to control receive frequency, received signals take on a very rough-sounding tone. If things are working properly, there should be no discernable difference on received signal purity with the RV-75. It sounds like there is a problem either in the connection between the two units, or in the RV-75 itself. I use an RV-75 with a TR-7/R-7 combination, and have never experienced a problem like you describe. Grant/NQ5T -- Submissions:[EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
