Thanks Greg will check that out.
|
Re: connecting a set of paddles to a drake B-line station?
Since most folks were on straight keys or bugs, it seems so odd that HV like that would be presented like that at the key.
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Wednesday, May 24, 2023 7:12:07 AM
Subject: Re: [DRAKE-RADIO] connecting a set of paddles to a drake B-line station?
And the key jack is two-conductor. Mind that the tip conductor has about -100VDC on it.? 73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Tue, May 23, 2023 at 4:58 PM, Tom Hellem <tom.hellem@...> wrote: Justin- Looking at the T4XB from the back, starting from the left you have a small knob that is the vox delay control, then immediately to the right of that is the key jack, which is a 1/4" phone jack.
Tom H K0SN
hi Tom, what jack specifically do you use to connect the key, or keyer to on the back? I¡¯m totally blind, so I may need some sihted assistance in order to figure that one out. Thanks, Justin-ai5os.
Justin- You will need an electronic keyer capable of keying the voltages associated with older tube rigs. I use an old Logikey, it has provision for keying modern solid state TX as well as old tube rigs. Many others do as well. Or you could use a bug, like a Vibroplex. Hooking up paddles directly to the key jack on the T4XB will not work, unless you just want to use it as a hand key.
Tom K0SN FOlks,
I¡¯ve got a Drake B-line station, the TX4, and the R4b, I¡®m assuming there is not a built-in keyer for the thing, so if I were to connect a set of paddles, what are the appropriate jacks that I¡¯d use? Also, I have this station going through an MN-2000 tuner, I like the tuner, it¡¯s beautiful, but if I have my antenna tuned to resonance at say 3800 KHZ, I might change the frequency to say 3870 KHZ, and I notice that the SWR will be quite high. If i have my heathkit 2060a in line, I notice that the SWR curve is not as steep. Is this expected behavior of the tuner itself?
Thanks.
Justin
|
Can you post a photo of the shaft showing what is broken?
Gary
toggle quoted message
Show quoted text
On May 24, 2023, at 12:37 AM, Bill via groups.io <billnopic@...> wrote:
Garry,
Appreciate the reply. Not sure how to answer your question because I'm not sure how I would use the tubing to repair the break. I guess I need to take it apart and see what the possibilities may be.?
Thanks
73
Bill
W4WCS
|
It would help more if the guy with the broken shaft would just send
a couple of pictures.
Much less guessing.
Jim W7RY
On 5/24/2023 6:50 AM, Gregory Beat via
groups.io wrote:
Drake MN-2700 ¡ª INSIDE VIEW
MOLDED Phenolic Rods (non-conductive shaft, usually 1/4 inch OD)
--
Thanks and 73, Jim W7RY
|
2-B's and related Stuff Available
Fellow Drake fans --
I am almost done redoing the 2-B that I'm going to keep and need to move the others along.? They are as described:
2-B No. 1, Mostly Complete.? It receives but haven't tested how well.? Chassis good compared with most (some spots).? Slug carriage doesn't want to move when knob is attached.? Missing dial cord and the pointer for same.? All the tubes are with it.?Q Mult connector was scavenged but I have a replacement that's close that I will include. Crystals for 20 and 10 (2) only.? I was going to keep this for parts but it will make a good receiver if you have the right parts and metalworking skills.?$75 + shipping.?
2-B No. 2.? Complete and aligned.? All tubes screened with Hickok 6000B and weak ones were replaced.? Works great and comes with the calibrator.? Chassis was cleaned and probably a 7/10, with some spotting.? Has crystals that were provided by factory.? $200 plus shipping.
2-BQ Q Multiplier.? Works fine.? Cabinet has some rust and could stand a repaint.? Aligned.? These things make what is already a surprisingly good (for 1962) CW receiver into an excellent receiver.? $80 plus shipping.
2-AC Calibrator.? Works with 2-A, 2-B, 2-C.? works great. $75 plus shipping.
I use Pirate Ship, so shipping rates are pretty reasonable.? I prefer a cheque or PP F&F.? If I know you from? being on here, we're good with personal cheques.? Unlike if I sell them on that auction site, I stand behind these amongst the folks on this reflector.
I'm clearing some space so I can do some woodworking again :-)
COMING SOON: I have two R-4A's (one 11-tube and one 13-tube).? They're working but I haven't tested them yet.? The 11-tube one has a dead AC switch that I'll bypass.? Seem to be working on all bands.? If you're interested, let me know and/or make offers.? They're in decent shape but not museum quality by any stretch.
I will also have either a 2-BQ or a 2-AQ.? I'm torn because the -AQ is in better shape but has the smaller speaker.??
More to come.? Like I said, clearning some stuff out and I will be also using the money to buy a new "modern" rig to replace my K3/P3...
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
|
Re: Output power - Part deux
I have a Telepost LP-100A. An *awesome* vector wattmeter. NIST-traceable.
Trust it much more than my Bird 4410a. Bought it a few years ago because I was building
a couple of linear amplifiers, and was VERY interested in power output.
I notice that the price has almost doubled.
- Jerry, KF6VB
toggle quoted message
Show quoted text
On 2023-05-24 06:38, Jim VE7RF wrote: The array solutions 'powermaster' series of PEP wattmeter's ( they
ONLY read pep, not average). They are hand calibrated to NIST
standards. Each HF coupler is marked for the frwd / rvs calibrations
points to be programmed into the mating display unit. The
calibration point for both frwd and also rvs can be tweaked +/- 15%
...... in 1% increments. They make both my bird / CD wattmeter's
with the pep kit, look like a sick puppy. Both the bird (+/- 8% of
FULL scale with the bird pep kit)..and the coaxial dynamics (+/- 7% of
FULL scale with the coaxial dynamics pep kit) require that the
smallest slug that can be used...be installed.
The array solutions powermaster meters have a switchable feature on
them that allows for ..'net power' ( frwd - rvs power) so swr is a
NON issue. I get the SAME pep out, regardless of swr. Unlike both
my bird / CD meter's, the powermaster meters do not drift when the
room temp increases. Bird slugs calibrated in the early AM, will be
put of calibration by the late afternoon. Any bird / cd meter, left
in a mobile setup, in hot wx, with windows up, isn't even close to
reality. The beauty of the powermaster is.... there is no pots or
trimmer caps to mess with to calibrate em....(and drift out of
alignment) ..... instead it's all done in software. When bought new,
the calibration points take all of mere seconds to program into the
mating display. Once that's done, you never touch em again.
Links:
------
[1] /g/DRAKE-RADIO/message/71429
[2] /mt/99067872/243852
[3] /g/DRAKE-RADIO/post
[4] /g/DRAKE-RADIO/editsub/243852
[5] /g/DRAKE-RADIO/leave/12260778/243852/767576506/xyzzy
|
Re: connecting a set of paddles to a drake B-line station?
And unlike modern radios this
is NOT a keyer input it is strictly a straight key operation.
Paddles alone will NOT act like a keyer an external keyer like a
WinKeyer is needed for using a paddle.
Joe WB9SBD
On 5/24/2023 7:12 AM, Steve Wedge,
W1ES/4 via groups.io wrote:
toggle quoted message
Show quoted text
And the key jack is two-conductor. Mind that the
tip conductor has about -100VDC on it.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Tue, May 23, 2023 at 4:58 PM, Tom Hellem <tom.hellem@...>
wrote:
Justin-
Looking at the T4XB from the back,
starting from the left you have
a small knob that is the vox delay
control, then immediately to the right of that
is the key jack, which is a 1/4" phone
jack.
Tom H
K0SN
hi Tom,
what jack specifically do you use to connect the key,
or keyer to on the back? I¡¯m totally blind, so I may
need some sihted assistance in order to figure that one
out.
Thanks,
Justin-ai5os.
Justin-
You will need an
electronic keyer capable of keying the
voltages associated with older tube
rigs. I use an old
Logikey, it has provision for keying modern
solid state TX as well as old
tube rigs. Many others
do as well. Or you could use a bug, like a
Vibroplex.
Hooking up paddles
directly to the key jack on the T4XB will not
work, unless you just want
to use it as a hand key.
Tom
K0SN
FOlks,
I¡¯ve got a Drake B-line station, the TX4, and
the R4b, I¡®m assuming there is not a built-in
keyer for the thing, so if I were to connect a
set of paddles, what are the appropriate jacks
that I¡¯d use? Also, I have this station going
through an MN-2000 tuner, I like the tuner,
it¡¯s beautiful, but if I have my antenna tuned
to resonance at say 3800 KHZ, I might change
the frequency to say 3870 KHZ, and I notice
that the SWR will be quite high. If i have my
heathkit 2060a in line, I notice that the SWR
curve is not as steep. Is this expected
behavior of the tuner itself?
Thanks.
Justin
|
Re: Output power - Part deux
The array solutions 'powermaster' series of PEP wattmeter's ( they ONLY read pep, not average).? They are hand calibrated to NIST standards.? ?Each HF coupler is marked for the frwd / rvs calibrations points to be programmed into the mating display unit.? ?The calibration point for both frwd and also rvs? can be tweaked +/- 15% ...... in? 1% increments.? They make? both my bird / CD? wattmeter's with the pep kit, look like a sick puppy.? ?Both the bird (+/- 8% of FULL scale with the bird pep kit)..and the coaxial dynamics (+/- 7% of FULL scale with the coaxial dynamics pep kit)? require that the smallest slug that can be used...be installed.?
?
The array solutions powermaster meters have a switchable? feature on them that allows for ..'net power'? ?( frwd - rvs power)? ?so swr is a NON issue.? I get the SAME pep out, regardless of swr.? ?Unlike both my bird / CD meter's, the powermaster meters do not drift when the room temp increases.? Bird slugs calibrated in the early AM, will be put of calibration by the late afternoon.? ?Any bird / cd meter, left in a mobile setup, in hot wx, with windows up, isn't even close to reality.? ?The beauty of the powermaster is.... there is no pots or trimmer caps to mess with to calibrate em....(and drift out of alignment) ..... instead it's all done in software. When bought new, the calibration points take all of mere seconds to program into the mating display.? Once that's done, you never touch? em again.?
|
Thank you everyone for all the advice! I was sent a diagram of the needed cable and luckily I was able to find three of those connectors online so I bought them. I also bought some of the coaxial cable that I will need to fabricate the cable. It really doesn't look that hard.
I appreciate all the responses to my inquiry. I will be building the cable and look forward to using the R7 with my TR7.
I also want to thank everybody for their links to all the different resources. Now I have some stuff to read over and learn. Like I said, it's a lot of fun to use this vintage Drake gear.
73,
Rocco - WU2M?
On Wed, May 24, 2023, 7:54 AM VE7PS < ve7ps@...> wrote: Rocco:
The original Drake transceiver cable you would need was called a Model 1548 and an original is in the ¡°unobtanium¡± category. It consists of a pair of Cinch-Jones 12 pin male connectors, several discreet wires, and two (or three?) small diameter coaxial cables. While tedious to make, I would not call it difficult. Bill¡¯s reference shows you the details.
WB4HFN used to make and sell them for $50, but I believe Ron is no longer making them. Worth asking him though. I see KE9PQ¡¯s Nationwide Radio site shows the complete set of cables you need including the ¡°1548¡± and audio/RF cables for around $125. Pretty sure you could build your own for about 1/3 of that or even less. Once you have the two connectors the rest is easy, but for your labor.
I have two of Ron¡¯s cables here and one of my own build.
73
Peter
VE7PS
> On May 23, 2023, at 10:23 PM, Jim Shorney <jimNU0C@...> wrote:
>
> ?
> It is all documented in the manuals. You can build the control cable yourself if you have the skills, the info is online. Otherwise they are often available online from aftermarket sellers. Likewise the RF cables with for example RG-58A/U coax and some decent RCA connectors. The internal jumper between the two RX antenna jacks on the back of the TR7 needs to be cut. For the audio cable you can use good shielded cable of any type, including the same type of coax you use for the RF cables.
>
> The 7-Twins were a DXer's dream back in the day and I can still do tricks with them that might surprise some users of "modern" rigs. My latest trick has been to monitor FT8 on two bands at once with a stereo audio feed to the computer from the audio out RCA jacks on the back of the rigs. Fun stuff.
>
> 73
>
> -Jim
> NU0C
>
>
>
>> On Tue, 23 May 2023 08:50:14 -0700
>> "Rocco Conte, WU2M" <rconte41@...> wrote:
>>
>> Hi Everyone,
>>
>> I have a Drake TR7 station that I use from time to time. It's a great rig and I love it. I recently picked up an R7 and I was wondering if there is a way to use it with the TR7. I don't see any sort of cable to connect the two together so they function together
>> like some other units do. I wonder if anyone is doing this. Sorry for the newbie question but I did not see anything in the receiver manual although I could have missed it.
>>
>> Thanks,
>>
>> Rocco - WU2M
>>
>>
>>
>>
>>
>
>
>
>
>
>
|
Re: connecting a set of paddles to a drake B-line station?
And the key jack is two-conductor. Mind that the tip conductor has about -100VDC on it.? 73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Tue, May 23, 2023 at 4:58 PM, Tom Hellem < tom.hellem@...> wrote: Justin- Looking at the T4XB from the back, starting from the left you have a small knob that is the vox delay control, then immediately to the right of that is the key jack, which is a 1/4" phone jack.
Tom H K0SN
hi Tom, what jack specifically do you use to connect the key, or keyer to on the back? I¡¯m totally blind, so I may need some sihted assistance in order to figure that one out. Thanks, Justin-ai5os.
Justin- You will need an electronic keyer capable of keying the voltages associated with older tube rigs. I use an old Logikey, it has provision for keying modern solid state TX as well as old tube rigs. Many others do as well. Or you could use a bug, like a Vibroplex. Hooking up paddles directly to the key jack on the T4XB will not work, unless you just want to use it as a hand key.
Tom K0SN FOlks,
I¡¯ve got a Drake B-line station, the TX4, and the R4b, I¡®m assuming there is not a built-in keyer for the thing, so if I were to connect a set of paddles, what are the appropriate jacks that I¡¯d use? Also, I have this station going through an MN-2000 tuner, I like the tuner, it¡¯s beautiful, but if I have my antenna tuned to resonance at say 3800 KHZ, I might change the frequency to say 3870 KHZ, and I notice that the SWR will be quite high. If i have my heathkit 2060a in line, I notice that the SWR curve is not as steep. Is this expected behavior of the tuner itself?
Thanks.
Justin
|
Rocco:
The original Drake transceiver cable you would need was called a Model 1548 and an original is in the ¡°unobtanium¡± category. It consists of a pair of Cinch-Jones 12 pin male connectors, several discreet wires, and two (or three?) small diameter coaxial cables. While tedious to make, I would not call it difficult. Bill¡¯s reference shows you the details.
WB4HFN used to make and sell them for $50, but I believe Ron is no longer making them. Worth asking him though. I see KE9PQ¡¯s Nationwide Radio site shows the complete set of cables you need including the ¡°1548¡± and audio/RF cables for around $125. Pretty sure you could build your own for about 1/3 of that or even less. Once you have the two connectors the rest is easy, but for your labor.
I have two of Ron¡¯s cables here and one of my own build.
73
Peter
VE7PS
toggle quoted message
Show quoted text
On May 23, 2023, at 10:23 PM, Jim Shorney <jimNU0C@...> wrote:
?
It is all documented in the manuals. You can build the control cable yourself if you have the skills, the info is online. Otherwise they are often available online from aftermarket sellers. Likewise the RF cables with for example RG-58A/U coax and some decent RCA connectors. The internal jumper between the two RX antenna jacks on the back of the TR7 needs to be cut. For the audio cable you can use good shielded cable of any type, including the same type of coax you use for the RF cables.
The 7-Twins were a DXer's dream back in the day and I can still do tricks with them that might surprise some users of "modern" rigs. My latest trick has been to monitor FT8 on two bands at once with a stereo audio feed to the computer from the audio out RCA jacks on the back of the rigs. Fun stuff.
73
-Jim
NU0C
On Tue, 23 May 2023 08:50:14 -0700
"Rocco Conte, WU2M" <rconte41@...> wrote:
Hi Everyone,
I have a Drake TR7 station that I use from time to time. It's a great rig and I love it. I recently picked up an R7 and I was wondering if there is a way to use it with the TR7. I don't see any sort of cable to connect the two together so they function together
like some other units do. I wonder if anyone is doing this. Sorry for the newbie question but I did not see anything in the receiver manual although I could have missed it.
Thanks,
Rocco - WU2M
|
Drake MN-2700 ¡ª INSIDE VIEW
MOLDED Phenolic Rods (non-conductive shaft, usually 1/4 inch OD)
|
Garry,
Appreciate the reply. Not sure how to answer your question because I'm not sure how I would use the tubing to repair the break. I guess I need to take it apart and see what the possibilities may be.?
Thanks
73
Bill
W4WCS
|
It is all documented in the manuals. You can build the control cable yourself if you have the skills, the info is online. Otherwise they are often available online from aftermarket sellers. Likewise the RF cables with for example RG-58A/U coax and some decent RCA connectors. The internal jumper between the two RX antenna jacks on the back of the TR7 needs to be cut. For the audio cable you can use good shielded cable of any type, including the same type of coax you use for the RF cables. The 7-Twins were a DXer's dream back in the day and I can still do tricks with them that might surprise some users of "modern" rigs. My latest trick has been to monitor FT8 on two bands at once with a stereo audio feed to the computer from the audio out RCA jacks on the back of the rigs. Fun stuff. 73 -Jim NU0C On Tue, 23 May 2023 08:50:14 -0700 "Rocco Conte, WU2M" <rconte41@...> wrote: Hi Everyone,
I have a Drake TR7 station that I use from time to time. It's a great rig and I love it. I recently picked up an R7 and I was wondering if there is a way to use it with the TR7. I don't see any sort of cable to connect the two together so they function together
like some other units do. I wonder if anyone is doing this. Sorry for the newbie question but I did not see anything in the receiver manual although I could have missed it.
Thanks,
Rocco - WU2M
|
Jerry, On Tue, 23 May 2023 10:25:17 -0700 "jerry-KF6VB" <jerry@...> wrote: The S meter calibration was less successful. S9 is supposed to be 30
microvolts on all bands. It turned out to be more like
160 microvolts - and 600 microvolts on 160 meters. You have a problem. The S-Meter should be pretty flat across the bands. How does the measured sensitivity check out? Trying to do the ALC and power meter calibrations, I discovered that
the ALC board was not well documented on the scans that I had of the
Service Manual. As in - no schematic, no pictorial, no parts list. The ALC board is part of the High Pass Filter module. All the info you need should be there. So what EXACTLY does the "RCV FIXED" button do? Drake doesn't
directly say. THe FIXED buttons activate fixed crystals on the AUX-7 board and switch the PTO feed off. If you have no crystals reinstalled there will be nothing to lock to. If the problem is inside the PTO, that's fairly bad news. Drake
doesn't give any info on the PTO, other than "ABANDON HOPE ALL YE WHO
ENTER HERE". "Send it to us if you have a problem". No schematic, no
pictorial, no parts list, nada. Look for a copy of the RV7 VFO manual. The PTO schematic is there. 73 -Jim NU0C
|
How long does it need to be?
I have a shaft from a Collins radio that is very strong fiber with flats most of the length and a 3/16 diameter by 1/2 inch knob shaft on on end/ You could use a piece of 1/2 brass tubing to make up the knob diameter.
Garry
toggle quoted message
Show quoted text
On May 23, 2023, at 12:48 PM, Bill via groups.io <billnopic@...> wrote:
I have an MN-2700 that the Resistive knob broke off at the knob. So my obvious question is: NOW what??? hihi!
I searched the archive and didn't find any info on how I might repair. On the tuner the shaft ends at the last nut. On the knob there is practically nothing except what is in the knob.
Also. I can feel that the other knobs are tight in turning. So what is the proper preventative measure to use to not do this again. Lubricate? With what? Probably needs to be done to all my vintage gear.
Any ideas? Help! :-)
Thanks
73
Bill
W4WCS
|
Anybody got a nice MS-7 that they would like to sell?? If so please advise shipped price to 49534
Thanks,
Eric
K8CCA
|
Re: connecting a set of paddles to a drake B-line station?
Justin- Looking at the T4XB from the back, starting from the left you have a small knob that is the vox delay control, then immediately to the right of that? is the key jack, which is a 1/4" phone jack.
Tom H K0SN
hi Tom, what jack specifically do you use to connect the key, or keyer to on the back?? I¡¯m totally blind, so I may need some sihted assistance in order to figure that one out. Thanks, Justin-ai5os.
Justin- You will need an electronic keyer capable of keying the voltages associated with older tube rigs. I use an old Logikey, it has provision?for keying modern solid state TX as well as old tube rigs. Many others do as well. Or you could use a bug, like a Vibroplex. ?Hooking up paddles directly to the key jack on the T4XB will not work, unless you just want to use it as a hand key.
Tom K0SN FOlks,
I¡¯ve got a Drake B-line station, the TX4, and the R4b, I¡®m assuming there is not a built-in keyer for the thing, so if I were to connect a set of paddles, what are the appropriate jacks that I¡¯d use?? Also, I have this station going through an MN-2000 tuner, I like the tuner, it¡¯s beautiful, but if I have my antenna tuned to resonance at say 3800 KHZ, I might change the frequency to say 3870 KHZ, and I notice that the SWR will be quite high.? If i have my heathkit 2060a in line, I notice that the SWR curve is not as steep.? Is this expected behavior of the tuner itself?
Thanks.
Justin
|
Rocco,
Together they make a fine pair. I use my TR7A and R7A all the time. For the cable, try this link:
This is covered in the manual but is easier to read on the link. I suspect that there may be something about this on the WB4HFN website as well:
Good luck,
73,
-Bill, W9MXQ
|
Re: connecting a set of paddles to a drake B-line station?
You will need a keyer and it will need to have a grid block output that you just plug into the key jack. I have an MFJ-422E that I use.
73 de Mike, W1NR
toggle quoted message
Show quoted text
On 5/23/2023 2:29 PM, Justin Mann via groups.io wrote: FOlks,
I¡¯ve got a Drake B-line station, the TX4, and the R4b, I¡®m assuming there is not a built-in keyer for the thing, so if I were to connect a set of paddles, what are the appropriate jacks that I¡¯d use? Also, I have this station going through an MN-2000 tuner, I like the tuner, it¡¯s beautiful, but if I have my antenna tuned to resonance at say 3800 KHZ, I might change the frequency to say 3870 KHZ, and I notice that the SWR will be quite high. If i have my heathkit 2060a in line, I notice that the SWR curve is not as steep. Is this expected behavior of the tuner itself?
Thanks.
Justin
|
Bill
Rocco Conte, WU2M
Greg W9GB
Jim Shorney
K8CCA