Re: TR7 recommission stalls.
On your original post you said the TR7 "Stopped Working."?
?
What exactly "stopped working?"?
?
Have you checked the supply voltages from the small PS board? (+24, +10, +5, etc)
?
Put a piece of electrical tape on the chassis before you check the higher pins, so you don't short them to gnd.?
--
Craig/W8CS
Greenville, SC
|
Re: TR7 recommission stalls.
Hi guys
Signals on each of the neccessary board pins present.
Going to refit the extender cards and see what's missing on the board.
Mike
G3ZCC
|
Re: Mn2000 broken insulator
Question is what caused them to break to begin with?
|
Re: Using the PLJ-6LED digital display with the R4C
Wouldn't the probe load the INJ line by around 2 pF?
Steve Wedge, W1ES
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, January 13th, 2025 at 9:22 AM, Mark - WB0IQK <mgilger@...> wrote:
Floyd,
How about putting your scope on the injection line and peaking each band for maximum signal instead of using Drake's procedure? You might be able to get a bit more output that way.?
Mark
|
Re: Using the PLJ-6LED digital display with the R4C
Floyd,
How about putting your scope on the injection line and peaking each band for maximum signal instead of using Drake's procedure? You might be able to get a bit more output that way.?
Mark
|
Good morning Mike,
?
Could you send me a photo?
?
Thank you.
?
73,
Michael, N4KZO
|
Re: Mn2000 broken insulator
I just discovered this company...they have ceramic insulators & stand offs.
https://www.daburn.com/10-40steatitestandoffs.aspx
|
I have a B line PTO with a clear, not discolored dial, a metal and nylon set of gears and it's in excellent condition.
The PTO tunes very smooth. It has 3 point 6x32x3/8" machine screw mounting studs. The mounting stud threads
are in excellent condition.
?
Price is $40 shipped. If interested contact me off group.
?
73
Mike W5RKL
?
|
I don¡¯t think I¡¯ve ever seen one with metal gears. Interesting.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 22:04, Barry KJ5GQM via groups.io < chasbg@...> wrote:
It¡¯s the same vintage as the TR-3 and is wired exactly the same. The VFO in the RV-3 I have is mounted to the chassis in four places as is the early SN-13nn TR-3 and both have plastic gears. The TR-3 I¡¯m restoring is SN-10nnn and the VFO is mounted in three places. The gear on the dial part is metal. Otherwise it looks like the other two.
On Sunday, January 12, 2025 at 08:11:33 PM CST, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
Does the RV-3 use a tube for the PTO? ?I¡¯m thinking the RV-3 was made later and may have a solid state PTO.?
Enquiring minds want to know.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 19:37, Barry KJ5GQM via groups.io <
chasbg@...> wrote:
I have a TR-3 with half the dial tinted. I have a RV-3 and a very early TR-3 parts radio that are both clear. One of them is going to ¡°donate¡± the dial. I was going to transplant the whole VFO from the RV-3 but the mounting hole pattern is different.
|
It¡¯s the same vintage as the TR-3 and is wired exactly the same. The VFO in the RV-3 I have is mounted to the chassis in four places as is the early SN-13nn TR-3 and both have plastic gears. The TR-3 I¡¯m restoring is SN-10nnn and the VFO is mounted in three places. The gear on the dial part is metal. Otherwise it looks like the other two.
On Sunday, January 12, 2025 at 08:11:33 PM CST, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
Does the RV-3 use a tube for the PTO? ?I¡¯m thinking the RV-3 was made later and may have a solid state PTO.?
Enquiring minds want to know.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 19:37, Barry KJ5GQM via groups.io < chasbg@...> wrote:
I have a TR-3 with half the dial tinted. I have a RV-3 and a very early TR-3 parts radio that are both clear. One of them is going to ¡°donate¡± the dial. I was going to transplant the whole VFO from the RV-3 but the mounting hole pattern is different.
|
Thanks.
I decided to put a little WD-40 on the pivot pins. Levers move MUCH
better now.? I still need to mess with getting the dial on the PTO
in the TR7 closer.? I was able to find the Drake net today and check
in with it and the L4B.? I've got to figure out what the low output
problem is on 40 meters. I'm sure it's a similar problem in the high
pass filter I had long ago.? I can only get about 10 watts out on 40
meters.? L4B will put out around 100 watts or so with that much
drive on low plate voltage.
73
Stan
KM4HQE
On 1/12/25 20:08, Steve Wedge, W1ES/4
via groups.io wrote:
toggle quoted message
Show quoted text
Let me know if you need me to look in mine :-)
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 18:28, Stan Gammons via groups.io <buttercup11421@...>
wrote:
The rig I have
is in the 9300 range. RV7 is in the 2400 range.?
I messed with the PTO in the RV7 and I see how it's done now.?
Both levers, the one on the PTO in the TR7 and the one on the
PTO in the RV7, are a bit sluggish. Not sure if lubricating the
pivot pin is the right decision but there is a spring on the
bottom of the lever to a hole in the left side of the frame. If
you pull the lever to the left you can move the white dial, but
not the clear dial. I have the one on my RV7 pretty close.? It
looks like one would have to loosen the nut on the front to move
the clear dial. I think that is what needs to be done with the
PTO in the TR7.
Maybe I can fix the broken DR7 board I got off Ebay when I get
it.? Kind of given up on the original one. It seems pretty
flaky.
Time to put the RV7 back together.
73
Stan
KM4HQE
On 1/12/25 16:50, Steve Wedge,
W1ES/4 via groups.io wrote:
Hmmm.?
The rig I did had a s/n in the 5000s. Perhaps
a change? ?I can¡¯t exactly remember, unfortunately.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 11:31, Stan Gammons via groups.io <
buttercup11421@...>
wrote:
No, I was
wrong. That lever will pivot permitting one to move the
dial. Looks like a lot of? "fun" though.
73
Stan
KM4HQE
On 1/12/25 10:12, Stan Gammons
via groups.io wrote:
Looks like the only way to move the
dial is to loosen the screw on the arm in this pic. Looks
like that will allow one to push the gear back enough to
move the dial. This is a pic of the PTO in my RV7. Looks
like it use a bit of cleaning while I have it out.
73
Stan
KM4HQE
On 1/12/25 06:33, Steve
Wedge, W1ES/4 via groups.io wrote:
I¡¯m trying to remember if there was
anything special about doing it because I know that I
did have a TR7 with the 100s dial annoyingly out of
whack.?
IIRC, there¡¯s a spring-loaded idle
gear, just like the older ones. Push against the
tension and you can move the dials. It almost seemed
like I needed a third hand but somehow I managed (and
my hands aren¡¯t small). The problem I remember is
keeping both of them aligned at the same time.?
73,
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a
banana.
On Sat, Jan 11, 2025 at 19:20, Stan Gammons via
groups.io < buttercup11421@...>
wrote:
Hi
All,
We got a little bit of snow yesterday, about 4 inches,
so I decided to
finally pull the DR7 board to try and figure out
what's causing the PLL
unlock problem.? I replaced the DR7 with the jumper
board and the rig
has been solid all day. So, it's looks like a DR7
problem.? However, the
dial on the PTO is about 9 Kc high when I'm on the
right frequency and
the knob is full clockwise and no way to get the dial
to match the
actual frequency.? I looked on the WB4HFN site but I
couldn't find an
article describing how to recenter the dial on the
PTO.? Any advice on
how to get the dial recentered so it will be a bit
closer than it is now?
73
Stan
|
Does the RV-3 use a tube for the PTO? ?I¡¯m thinking the RV-3 was made later and may have a solid state PTO.?
Enquiring minds want to know.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 19:37, Barry KJ5GQM via groups.io < chasbg@...> wrote:
I have a TR-3 with half the dial tinted. I have a RV-3 and a very early TR-3 parts radio that are both clear. One of them is going to ¡°donate¡± the dial. I was going to transplant the whole VFO from the RV-3 but the mounting hole pattern is different.
|
Let me know if you need me to look in mine :-)
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 18:28, Stan Gammons via groups.io < buttercup11421@...> wrote: The rig I have is in the 9300 range. RV7 is in the 2400 range.?
I messed with the PTO in the RV7 and I see how it's done now.? Both levers, the one on the PTO in the TR7 and the one on the PTO in the RV7, are a bit sluggish. Not sure if lubricating the pivot pin is the right decision but there is a spring on the bottom of the lever to a hole in the left side of the frame. If you pull the lever to the left you can move the white dial, but not the clear dial. I have the one on my RV7 pretty close.? It looks like one would have to loosen the nut on the front to move the clear dial. I think that is what needs to be done with the PTO in the TR7.
Maybe I can fix the broken DR7 board I got off Ebay when I get it.? Kind of given up on the original one. It seems pretty flaky.
Time to put the RV7 back together.
73
Stan
KM4HQE
On 1/12/25 16:50, Steve Wedge, W1ES/4 via groups.io wrote:
Hmmm.?
The rig I did had a s/n in the 5000s. Perhaps a change? ?I can¡¯t exactly remember, unfortunately.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 11:31, Stan Gammons via groups.io <
buttercup11421@...> wrote:
No, I was wrong. That lever will pivot permitting one to move the dial. Looks like a lot of? "fun" though.
73
Stan
KM4HQE
On 1/12/25 10:12, Stan Gammons via groups.io wrote:
Looks like the only way to move the dial is to loosen the screw on the arm in this pic. Looks like that will allow one to push the gear back enough to move the dial. This is a pic of the PTO in my RV7. Looks like it use a bit of cleaning while I have it out.
73
Stan
KM4HQE
On 1/12/25 06:33, Steve Wedge, W1ES/4 via groups.io wrote:
I¡¯m trying to remember if there was anything special about doing it because I know that I did have a TR7 with the 100s dial annoyingly out of whack.?
IIRC, there¡¯s a spring-loaded idle gear, just like the older ones. Push against the tension and you can move the dials. It almost seemed like I needed a third hand but somehow I managed (and my hands aren¡¯t small). The problem I remember is keeping both of them aligned at the same time.?
73,
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sat, Jan 11, 2025 at 19:20, Stan Gammons via groups.io <
buttercup11421@...> wrote:
Hi All,
We got a little bit of snow yesterday, about 4 inches, so I decided to
finally pull the DR7 board to try and figure out what's causing the PLL
unlock problem.? I replaced the DR7 with the jumper board and the rig
has been solid all day. So, it's looks like a DR7 problem.? However, the
dial on the PTO is about 9 Kc high when I'm on the right frequency and
the knob is full clockwise and no way to get the dial to match the
actual frequency.? I looked on the WB4HFN site but I couldn't find an
article describing how to recenter the dial on the PTO.? Any advice on
how to get the dial recentered so it will be a bit closer than it is now?
73
Stan
|
I have a TR-3 with half the dial tinted. I have a RV-3 and a very early TR-3 parts radio that are both clear. One of them is going to ¡°donate¡± the dial. I was going to transplant the whole VFO from the RV-3 but the mounting hole pattern is different.
|
The rig I have is in the 9300 range. RV7 is in the 2400 range.?
I messed with the PTO in the RV7 and I see how it's done now.? Both
levers, the one on the PTO in the TR7 and the one on the PTO in the
RV7, are a bit sluggish. Not sure if lubricating the pivot pin is
the right decision but there is a spring on the bottom of the lever
to a hole in the left side of the frame. If you pull the lever to
the left you can move the white dial, but not the clear dial. I have
the one on my RV7 pretty close.? It looks like one would have to
loosen the nut on the front to move the clear dial. I think that is
what needs to be done with the PTO in the TR7.
Maybe I can fix the broken DR7 board I got off Ebay when I get it.?
Kind of given up on the original one. It seems pretty flaky.
Time to put the RV7 back together.
73
Stan
KM4HQE
On 1/12/25 16:50, Steve Wedge, W1ES/4
via groups.io wrote:
toggle quoted message
Show quoted text
Hmmm.?
The rig I did had a s/n in the 5000s. Perhaps a
change? ?I can¡¯t exactly remember, unfortunately.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 11:31, Stan Gammons via groups.io <buttercup11421@...>
wrote:
No, I was wrong.
That lever will pivot permitting one to move the dial. Looks
like a lot of? "fun" though.
73
Stan
KM4HQE
On 1/12/25 10:12, Stan Gammons via
groups.io wrote:
Looks like the only way to move the
dial is to loosen the screw on the arm in this pic. Looks like
that will allow one to push the gear back enough to move the
dial. This is a pic of the PTO in my RV7. Looks like it use a
bit of cleaning while I have it out.
73
Stan
KM4HQE
On 1/12/25 06:33, Steve Wedge,
W1ES/4 via groups.io wrote:
I¡¯m trying to remember if there was
anything special about doing it because I know that I did
have a TR7 with the 100s dial annoyingly out of whack.?
IIRC, there¡¯s a spring-loaded idle gear,
just like the older ones. Push against the tension and you
can move the dials. It almost seemed like I needed a third
hand but somehow I managed (and my hands aren¡¯t small).
The problem I remember is keeping both of them aligned at
the same time.?
73,
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a
banana.
On Sat, Jan 11, 2025 at 19:20, Stan Gammons via groups.io
< buttercup11421@...>
wrote:
Hi All,
We got a little bit of snow yesterday, about 4 inches, so
I decided to
finally pull the DR7 board to try and figure out what's
causing the PLL
unlock problem.? I replaced the DR7 with the jumper board
and the rig
has been solid all day. So, it's looks like a DR7
problem.? However, the
dial on the PTO is about 9 Kc high when I'm on the right
frequency and
the knob is full clockwise and no way to get the dial to
match the
actual frequency.? I looked on the WB4HFN site but I
couldn't find an
article describing how to recenter the dial on the PTO.?
Any advice on
how to get the dial recentered so it will be a bit closer
than it is now?
73
Stan
|
As mentioned earlier, it is interesting that all of the Twins i have seen with brown dials have been B Line. The change in raw material could account for it.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 13:51, VE7PS via groups.io < ve7ps@...> wrote:
On the B-line (and earlier) dial graphics.... that one posted by Mark, WB0IQK, is very good, and should work well with the B-line and early transmitters and receivers.? (Transceivers...NO)
If doing this project, check out the QST "Hints and Kinks" article by Jeff Covelli, WA8SAJ, on making the dial with a clear printed stick-on overlay and the clear plastic protection sheets found in packages?of CD's/DVD's.? Admittedly...those might be a little harder to find now than 10 years ago.? I have a few saved...just in case I need them someday.
Search?the FILES section on the Drake-Radio group for "
Restore Drake B-line
Dials".
And a warning......keep the sun from shining on your radios!
73
Peter
VE7PS
On Sun, Jan 12, 2025 at 7:06?AM Gary WB6OGD via
<winbladgary=
[email protected]> wrote:
There is a good graphic of the dial in the Files area:
Drake_Dial.pdf
?
73,
Gary
WB6OGD
?
|
Hmmm.?
The rig I did had a s/n in the 5000s. Perhaps a change? ?I can¡¯t exactly remember, unfortunately.?
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sun, Jan 12, 2025 at 11:31, Stan Gammons via groups.io < buttercup11421@...> wrote: No, I was wrong. That lever will pivot permitting one to move the dial. Looks like a lot of? "fun" though.
73
Stan
KM4HQE
On 1/12/25 10:12, Stan Gammons via groups.io wrote:
Looks like the only way to move the dial is to loosen the screw on the arm in this pic. Looks like that will allow one to push the gear back enough to move the dial. This is a pic of the PTO in my RV7. Looks like it use a bit of cleaning while I have it out.
73
Stan
KM4HQE
On 1/12/25 06:33, Steve Wedge, W1ES/4 via groups.io wrote:
I¡¯m trying to remember if there was anything special about doing it because I know that I did have a TR7 with the 100s dial annoyingly out of whack.?
IIRC, there¡¯s a spring-loaded idle gear, just like the older ones. Push against the tension and you can move the dials. It almost seemed like I needed a third hand but somehow I managed (and my hands aren¡¯t small). The problem I remember is keeping both of them aligned at the same time.?
73,
Steve Wedge, W1ES
Time flies like an arrow. Fruit flies like a banana.
On Sat, Jan 11, 2025 at 19:20, Stan Gammons via groups.io <
buttercup11421@...> wrote:
Hi All,
We got a little bit of snow yesterday, about 4 inches, so I decided to
finally pull the DR7 board to try and figure out what's causing the PLL
unlock problem.? I replaced the DR7 with the jumper board and the rig
has been solid all day. So, it's looks like a DR7 problem.? However, the
dial on the PTO is about 9 Kc high when I'm on the right frequency and
the knob is full clockwise and no way to get the dial to match the
actual frequency.? I looked on the WB4HFN site but I couldn't find an
article describing how to recenter the dial on the PTO.? Any advice on
how to get the dial recentered so it will be a bit closer than it is now?
73
Stan
|
DRAKE TECHNICAL NET UPDATE - 12 January 2025
There were 32 check-in stations in today¡¯s Drake Technical Net on 7.238 MHz at 3:00 PM Central Standard Time. ? Conditions were good. ? The following Drake radios were used by check-in stations:? ? Twins (All Versions) = 6 TR-3 = 0 TR-4 (All Versions) = 7 TR5 = 1 TR7 (All Versions) = 9 ? Join us again next week ¨C 19 January 2025 ¨C 3:00 PM CST/4:00 PM EST when Ron, WB4HFN, will be Net Control.? ? 73, ? Bill Shadid, W9MXQ ¨C Net Control for 12 January 2025 Drake Technical Net W9MXQ@... ? ?
|
On the B-line (and earlier) dial graphics.... that one posted by Mark, WB0IQK, is very good, and should work well with the B-line and early transmitters and receivers.? (Transceivers...NO)
If doing this project, check out the QST "Hints and Kinks" article by Jeff Covelli, WA8SAJ, on making the dial with a clear printed stick-on overlay and the clear plastic protection sheets found in packages?of CD's/DVD's.? Admittedly...those might be a little harder to find now than 10 years ago.? I have a few saved...just in case I need them someday.
Search?the FILES section on the Drake-Radio group for "Restore Drake B-line Dials".
And a warning......keep the sun from shining on your radios!
73 Peter VE7PS
On Sun, Jan 12, 2025 at 7:06?AM Gary WB6OGD via <winbladgary= [email protected]> wrote: There is a good graphic of the dial in the Files area:
Drake_Dial.pdf
?
73,
Gary
WB6OGD
?
|
I thought I'd seen one before.? If anyone makes up a batch, I'd like to get a couple (and of course pay for 'em).
I don't have the equipment to make these.
Steve Wedge, W1ES
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Sunday, January 12th, 2025 at 10:06 AM, Gary WB6OGD via groups.io <winbladgary@...> wrote:
There is a good graphic of the dial in the Files area:
Drake_Dial.pdf
?
73,
Gary
WB6OGD
?
|
Craig W8CS
Mike Davidsohn G3ZCC
Robin K4IDC