Of course, but I did not want to characterize them as CB connectors. You will find a 2 pin version on the back of the R7. 73 -Jim NU0C On Sun, 21 Mar 2021 18:51:31 -0500 "Jeffrey Angus" <jdangus@...> wrote: On 3/21/21 3:34 PM, Jim Shorney wrote:
No, the SP75 came with 4 pin aviation connectors like what were common for mic connectors on rigs of that era. And were on 90% of every CB radio.
|
Yes, I think that is where I read it. 73 -Jim NU0C On Sun, 21 Mar 2021 16:53:38 -0700 "VE7PS" <ve7ps@...> wrote: I have heard of that legend....perhaps Loughmiller's book?
|
I have heard of that legend....perhaps Loughmiller's book?
But sure seems to be something more than just a coincidence given the dual connection with the TR-3, TR-4, TR-5, TR-6, TR-7, and even the Drake prototype TR-8!
Ahhh....but Drake had a TR-4CW/rit!? Take that Triumph!
73
PS
toggle quoted message
Show quoted text
On 2021-03-21 1:54 p.m., Jim Shorney wrote:
Interestingly, legend has it that Bob had a fondness for British sports cars which had some impact on how he named radios.
My brother had a TR-6 (four wheel version). Seems to me like he was always tinkering with it.
73
-Jim
NU0C
On Sun, 21 Mar 2021 13:40:39 -0700
"VE7PS" <ve7ps@...> wrote:
Hmmmmm....nothing looks cast in stone.
Wikipedia shows the Triumph with no hyphen (TR7) in the whole article.
Drake shows the radio as "*TR7*" on the front page of the manual, and on
the front panel of the radio itself, but refers to it over and over as
*TR-7* inside the manual.
Too bad we can't ask Bob what he really called it!
Enough....gotta go get my vaccination!!!
73
PS
On 2021-03-21 1:26 p.m., Jim Shorney wrote:
No, I mean the TR7, not the TR-7.
73
-Jim
NU0C
On Sun, 21 Mar 2021 13:04:36 -0700
"VE7PS" <ve7ps@...> wrote:
Jim -
I would challenge your claim of the 1st blue TR-7.? I would think that
belongs to Triumph Motors, 3 years before the Drake!? ;-)
TRIUMPH TR7 BUYER'S GUIDE | Classics World
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be? working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
On 3/21/21 3:34 PM, Jim Shorney wrote: No, the SP75 came with 4 pin aviation connectors like what were common for mic connectors on rigs of that era. And were on 90% of every CB radio. -- "I am a river to my people." Jeff-1.0 WA6FWI www.foxsmercantile.com
|
I've got an SW1 I found at a local Goodwill for $35. The keypad was non-functional due to cracked solder joints. Easy fix. Nice little radio. 73 -Jim NU0C On Sun, 21 Mar 2021 19:18:59 -0400 "John" <johnk5mo@...> wrote: I had a SW2 and it too had great audio out of the front firing speaker. It
was one of the best-sounding SW radios I've owned. Sadly, the synth went
bad and I gave the remains away. It was perhaps the best chairside
shortwave receivers available.
John K5MO
On Sun, Mar 21, 2021 at 2:42 PM Donald Rusbult via groups.io <drusbult2003=
[email protected]> wrote:
I found a nice little Drake PRN 1000 locally. Nice rich sound and looks
good too. Only paid $100.00 for it. Nice add to my twins.
|
I had a SW2 and it too had great audio out of the front firing speaker. It was one of the best-sounding SW radios I've owned.? Sadly, the synth went bad and I gave the remains away. It was perhaps the best chairside shortwave receivers available.
John K5MO
On Sun, Mar 21, 2021 at 2:42 PM Donald Rusbult via <drusbult2003= [email protected]> wrote: I found a nice little Drake PRN 1000 locally. Nice rich sound and looks good too. Only paid $100.00 for it. Nice add to my twins.
|
Re: DR7 fitting partial success.
Picky, picky, picky... :-)
Tony - W9JXN
toggle quoted message
Show quoted text
On Mar 21, 2021, at 3:26 PM, Jim Shorney <jshorney@...> wrote:
?
No, I mean the TR7, not the TR-7.
73
-Jim
NU0C
On Sun, 21 Mar 2021 13:04:36 -0700
"VE7PS" <ve7ps@...> wrote:
Jim -
I would challenge your claim of the 1st blue TR-7. I would think that
belongs to Triumph Motors, 3 years before the Drake! ;-)
TRIUMPH TR7 BUYER'S GUIDE | Classics World
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Re: DRAKE TECHNICAL NET UPDATE ( March 21, 2021 )
Tried to check in but band wasn't cooperating in SC. W4BRX
On Sun, Mar 21, 2021, 4:53 PM M Gilger < wb0iqk@...> wrote: The Drake tech net today had 16 check-ins under very poor band conditions.?
We had the following mix of Drake radio's.
TR-4(X) = 4 TR-5 = 3 TR-7 = 3 C TWINS = 2
73'S, Mark, WB0IQK
|
Re: DR7 fitting partial success.
I don't suppose you kept copies of those service bulletins? 73 -Jim NU0C On Sun, 21 Mar 2021 16:06:00 -0500 "Gary Follett" <xntrick1948@...> wrote: I remember being at work in 1978, having a chat with a few fellow workers. Two of them were hams.
I announced to my ham friends that I had planned to purchase a new TR7, not specifically saying ¡°radio¡±.
One of the non-hams quickly commented as to what a pile of junk the TR7 was (the car, of course) and that I should reconsider.
One of the ham friends quickly comforted my concerned friend that I was buying a TR7 radio, not a TR7 car, and that the TR7 radio was indeed a great choice.
I went on to purchase TR7 serial number 1207, pretty early version, and really enjoyed it. Every time Drake announced a service bulletin, I installed it. Sold the radio during my divorce, and ended up repairing that radio for the next 15 years for a friend to whom I sold it.
Just my piece of TR7 trivia.
Gary
W0DVN
On Mar 21, 2021, at 3:06 PM, VE7PS <ve7ps@...> wrote:
Guess pics can't be embedded...
<>
PS
On 2021-03-21 1:04 p.m., VE7PS via groups.io <> wrote:
Jim -
I would challenge your claim of the 1st blue TR-7. I would think that belongs to Triumph Motors, 3 years before the Drake! ;-)
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> <mailto:mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Re: DR7 fitting partial success.
I remember being at work in 1978, having a chat with a few fellow workers. Two of them were hams.
I announced to my ham friends that I had planned to purchase a new TR7, not specifically saying ¡°radio¡±.?
One of the non-hams quickly commented as to what a pile of junk the TR7 was (the car, of course) and that I should reconsider.
One of the ham friends quickly comforted my concerned friend that I was buying a TR7 radio, not a TR7 car, and that the TR7 radio was indeed a great choice.
I went on to purchase TR7 serial number 1207, pretty early version, and really enjoyed it. Every time Drake announced a service bulletin, I installed it. Sold the radio during my divorce, and ended up repairing that radio for the next 15 years for a friend to whom I sold it.
Just my piece of TR7 trivia.
Gary
toggle quoted message
Show quoted text
On Mar 21, 2021, at 3:06 PM, VE7PS < ve7ps@...> wrote:
Guess pics can't be embedded...PSOn 2021-03-21 1:04 p.m., VE7PS via??wrote:
Jim -?
I would challenge your claim of the 1st blue TR-7.? I would think that belongs to Triumph Motors, 3 years before the Drake!? ;-)
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be? working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Re: DRAKE TECHNICAL NET UPDATE ( March 21, 2021 )
I hated I missed it, I got in at the very end after check ins finished. Yes, conditions were pretty bad. I couldn't even hear Ron even though he's only a couple hundred miles west of me.
|
Interestingly, legend has it that Bob had a fondness for British sports cars which had some impact on how he named radios. My brother had a TR-6 (four wheel version). Seems to me like he was always tinkering with it. 73 -Jim NU0C On Sun, 21 Mar 2021 13:40:39 -0700 "VE7PS" <ve7ps@...> wrote: Hmmmmm....nothing looks cast in stone.
Wikipedia shows the Triumph with no hyphen (TR7) in the whole article.
Drake shows the radio as "*TR7*" on the front page of the manual, and on
the front panel of the radio itself, but refers to it over and over as
*TR-7* inside the manual.
Too bad we can't ask Bob what he really called it!
Enough....gotta go get my vaccination!!!
73
PS
On 2021-03-21 1:26 p.m., Jim Shorney wrote:
No, I mean the TR7, not the TR-7.
73
-Jim
NU0C
On Sun, 21 Mar 2021 13:04:36 -0700
"VE7PS" <ve7ps@...> wrote:
Jim -
I would challenge your claim of the 1st blue TR-7.? I would think that
belongs to Triumph Motors, 3 years before the Drake!? ;-)
TRIUMPH TR7 BUYER'S GUIDE | Classics World
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be? working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Thank you, Jim.
¡ªSteve, W?PZ
toggle quoted message
Show quoted text
On Mar 21, 2021, at 1:34 PM, Jim Shorney <jshorney@...> wrote:
?
No, the SP75 came with 4 pin aviation connectors like what were common for mic connectors on rigs of that era.
There should be no problem with TRS, it's all three wire on the inside. Don't worry about matching impedance, that's a non-issue. You are not transferring power and you are not operating a transmission line. Just do your grounding properly to keep RF on the outside of the box. You may also need a ground bond to the chassis of the rig, despite what the manual says.
73
-Jim
NU0C
On Sun, 21 Mar 2021 12:57:53 -0700
"Steve Beaman" <beamanator@...> wrote:
I didn¡¯t word that quite right. I don¡¯t intend to mod the SP-75. Just the ends of the cable connectors.
¡ª Steve, W?PZ
On Mar 21, 2021, at 12:54 PM, Steve Beaman via groups.io <beamanator@...> wrote: ?Did the SP-75 originally come with 4-pin XLR connectors?
If so, are there any ¡°gotchas¡± in converting to TRS on both sides so as to plug a Shure 444 in one side of the SP-75, and plug in to a T-4XC on the other side (I¡¯m concerned about matching the Shure cable impedance, etc).
The Shure 444 uses TRS and so does the T-4XC.
I¡¯m trying to do this in such a way that I do not cut my original Shure cable, but that means I (probably) have to locate a short additional Shure cable.
¡ªSteve, W?PZ
On Mar 21, 2021, at 11:42 AM, Donald Rusbult via groups.io <drusbult2003@...> wrote:
?I found a nice little Drake PRN 1000 locally. Nice rich sound and looks good too. Only paid $100.00 for it. Nice add to my twins.
--
Steve W0PZ
--
Steve? W0PZ
|
DRAKE TECHNICAL NET UPDATE ( March 21, 2021 )
The Drake tech net today had 16 check-ins under very poor band conditions.?
We had the following mix of Drake radio's.
TR-4(X) = 4 TR-5 = 3 TR-7 = 3 C TWINS = 2
73'S, Mark, WB0IQK
|
Hmmmmm....nothing looks cast in stone.
Wikipedia shows the Triumph with no hyphen (TR7) in the whole
article.
Drake shows the radio as " TR7" on the front page of the
manual, and on the front panel of the radio itself, but refers to it
over and over as TR-7 inside the manual.
Too bad we can't ask Bob what he really called it!
Enough....gotta go get my vaccination!!!
73
PS
On 2021-03-21 1:26 p.m., Jim Shorney
wrote:
toggle quoted message
Show quoted text
No, I mean the TR7, not the TR-7.
73
-Jim
NU0C
On Sun, 21 Mar 2021 13:04:36 -0700
"VE7PS" <ve7ps@...> wrote:
Jim -
I would challenge your claim of the 1st blue TR-7.? I would think that
belongs to Triumph Motors, 3 years before the Drake!? ;-)
TRIUMPH TR7 BUYER'S GUIDE | Classics World
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be? working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Yeah, it's sort of a dark gray. I thought maybe I had a pic of mine with the green knobs. I'll do that later. I'm more of a function over form guy. It it does the job I don't care how it looks. In my case it matches a Hy-Gain Penetrator 500 from 10 through 12 Meters. 73 -Jim NU0C On Sun, 21 Mar 2021 13:32:51 -0700 "VE7PS" <ve7ps@...> wrote: Jim:
You are right about the A model being green...or at least the cabinet
is.? Front panel looks like dark gray??? But maybe I have only ever seen
them in B & W QST's!!!? Not too many of those ever made it north of the
49th.
The B model appears to have been a gray hammertone cabinet, unless the
one I saw in an old Ebay listing has been painted.? Front panel looks
black in the pic I found.
Great tuner from all reports....but maybe not a good match for a Drake
4-line station, at least from a cosmetic standpoint.
PS
On 2021-03-21 1:23 p.m., Jim Shorney wrote:
Commercial version of Lew McCoy's "Ultimate Transmatch" described in the linked article. This is what mine looks like (except for the outer knobs).
73
-Jim
NU0C
On Sun, 21 Mar 2021 12:51:12 -0700
"Joe Wolfe" <w7rkn.7@...> wrote:
At the appearance of being incredibly dumb, what is a 'Murch'?
Joe - W7RKN
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jim Shorney
Subject: Re: [DRAKE-RADIO] MN2000
This is the tech behind the Murch. And also why you find homebrew variants.
73
-Jim
NU0C
|
No, the SP75 came with 4 pin aviation connectors like what were common for mic connectors on rigs of that era. There should be no problem with TRS, it's all three wire on the inside. Don't worry about matching impedance, that's a non-issue. You are not transferring power and you are not operating a transmission line. Just do your grounding properly to keep RF on the outside of the box. You may also need a ground bond to the chassis of the rig, despite what the manual says. 73 -Jim NU0C On Sun, 21 Mar 2021 12:57:53 -0700 "Steve Beaman" <beamanator@...> wrote: I didn¡¯t word that quite right. I don¡¯t intend to mod the SP-75. Just the ends of the cable connectors.
¡ª Steve, W?PZ
On Mar 21, 2021, at 12:54 PM, Steve Beaman via groups.io <beamanator@...> wrote:
?Did the SP-75 originally come with 4-pin XLR connectors?
If so, are there any ¡°gotchas¡± in converting to TRS on both sides so as to plug a Shure 444 in one side of the SP-75, and plug in to a T-4XC on the other side (I¡¯m concerned about matching the Shure cable impedance, etc).
The Shure 444 uses TRS and so does the T-4XC.
I¡¯m trying to do this in such a way that I do not cut my original Shure cable, but that means I (probably) have to locate a short additional Shure cable.
¡ªSteve, W?PZ
On Mar 21, 2021, at 11:42 AM, Donald Rusbult via groups.io <drusbult2003@...> wrote:
?I found a nice little Drake PRN 1000 locally. Nice rich sound and looks good too. Only paid $100.00 for it. Nice add to my twins.
--
Steve W0PZ
|
Jim:
You are right about the A model being green...or at least the cabinet is.? Front panel looks like dark gray??? But maybe I have only ever seen them in B & W QST's!!!? Not too many of those ever made it north of the 49th.
The B model appears to have been a gray hammertone cabinet, unless the one I saw in an old Ebay listing has been painted.? Front panel looks black in the pic I found.
Great tuner from all reports....but maybe not a good match for a Drake 4-line station, at least from a cosmetic standpoint.
PS
toggle quoted message
Show quoted text
On 2021-03-21 1:23 p.m., Jim Shorney wrote: Commercial version of Lew McCoy's "Ultimate Transmatch" described in the linked article. This is what mine looks like (except for the outer knobs).
73
-Jim
NU0C
On Sun, 21 Mar 2021 12:51:12 -0700
"Joe Wolfe" <w7rkn.7@...> wrote:
At the appearance of being incredibly dumb, what is a 'Murch'?
Joe - W7RKN
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jim Shorney
Subject: Re: [DRAKE-RADIO] MN2000
This is the tech behind the Murch. And also why you find homebrew variants.
73
-Jim
NU0C
|
Re: DR7 fitting partial success.
No, I mean the TR7, not the TR-7. 73 -Jim NU0C On Sun, 21 Mar 2021 13:04:36 -0700 "VE7PS" <ve7ps@...> wrote: Jim -
I would challenge your claim of the 1st blue TR-7.? I would think that
belongs to Triumph Motors, 3 years before the Drake!? ;-)
TRIUMPH TR7 BUYER'S GUIDE | Classics World
73
Peter
VE7PS
On 2021-03-21 11:01 a.m., Jim Shorney wrote:
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am discouraging you from sending DF4NW some money, he is a good guy. I bought the first blue display in the original LED size from him. Since I had already changed the ALC lamp to blue I had the first all blue TR7 in the world, a claim that has not been challenged to this day!
73
-Jim
NU0C
On Sun, 21 Mar 2021 10:49:07 -0700
"Mike Davidsohn G3ZCC" <mike@...> wrote:
Hi Jim
Managed to repair one of the spare PTO's all fitted back and seems to be? working ok.
Not putting the front back as I am changing the bulbs to blue LED's.
Then to the DR7 will check through again, thanks for the tip on checking the segments, will do that tomorrow.
If those LED's have a problem I will check out DF4NW to see if I can get a replacement.
Hoping it's just a solder joint.
Kind Regards
Mike
G3ZCC
|
Commercial version of Lew McCoy's "Ultimate Transmatch" described in the linked article. This is what mine looks like (except for the outer knobs). 73 -Jim NU0C On Sun, 21 Mar 2021 12:51:12 -0700 "Joe Wolfe" <w7rkn.7@...> wrote: At the appearance of being incredibly dumb, what is a 'Murch'?
Joe - W7RKN
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jim Shorney
Subject: Re: [DRAKE-RADIO] MN2000
This is the tech behind the Murch. And also why you find homebrew variants.
73
-Jim
NU0C
|
Jim Shorney