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What is the name/description, manufacturer, and part number of these
coaxial connectors?

Also, what is the particular coaxial cable or cables that are
compatible with these connectors?
Thanks/73,
Jerry, N4JL
FROM: [email protected] <[email protected]> ON BEHALF OF Glenn
Hetchler WB0DKT
SENT: Tuesday, March 12, 2024 12:01 AM
TO: [email protected]
SUBJECT: [DRAKE-RADIO] Item to check on TR7 plug-in coax connections
A friend who is a new ham and I have taken on a project TR7 in hopes
of getting it on the air for him. I have enjoyed mine for 40 years.
As we were doing inspection of the plug-in boards (well aware of the
many and varied connector issues) we came across an issue with a
plug-in coax that I cannot remember seeing discussed before (or at
least recently), so I thought I would warn others. It happened to be
on the noise blanker filler board, but could have been on any of them.
That board looked untouched from the factory, so I have to believe it
was built that way. The coax connector had the ground assembly that
the cable plugs into, but I was stunned to see that there was no
female socket for the coax center wire to plug into. It seems that
because the coax was pushed at an angle from being in the shield cage,
that the side force on the wire is all that made the center conductor
touch the (unsoldered) plated through hole on the circuit board. There
was no indication that any repair soldering (or unsoldering) had been
done in that area.
Very luckily a friend who had been winding down his Drake collection a
while back had offered me a few of the connector parts that he had
acquired during his years of working on TR7s, as he knew I was trying
to keep mine (OK, more than just one TR7 :) going. So I had exactly
the center wire socket for us to push into the circuit board with a
tweezers through the center of the ground connector, hold against the
board with a small screwdriver and then apply solder on the bottom
side. I have no idea where those connector parts could be obtained
these days. If anyone does know of a supplier, please reply to this
thread.
So now when inspecting the boards and their connectors, make sure the
coax connectors have all their parts. If Drake forgot to install it on
one board, there may be other ones out there with the same issue. It
was by luck that I saw it when unplugging the coax; it would have been
easy to miss.
73,
-Glenn/ WB0DKT
Links:
------
[1] /g/DRAKE-RADIO/message/76670
[2] /mt/104879045/243852
[3] /g/DRAKE-RADIO/post
[4] /g/DRAKE-RADIO/editsub/243852
[5] /g/DRAKE-RADIO/leave/12260778/243852/767576506/xyzzy

What is the name/description, manufacturer, and part number of these coaxial connectors?

Also, what is the particular coaxial cable or cables that are compatible with these connectors?



Thanks/73,



Jerry, N4JL





From: [email protected] <[email protected]> On Behalf Of Glenn Hetchler WB0DKT
Sent: Tuesday, March 12, 2024 12:01 AM
To: [email protected]
Subject: [DRAKE-RADIO] Item to check on TR7 plug-in coax connections



A friend who is a new ham and I have taken on a project TR7 in hopes of getting it on the air for him. I have enjoyed mine for 40 years.



As we were doing inspection of the plug-in boards (well aware of the many and varied connector issues) we came across an issue with a plug-in coax that I cannot remember seeing discussed before (or at least recently), so I thought I would warn others. It happened to be on the noise blanker filler board, but could have been on any of them.



That board looked untouched from the factory, so I have to believe it was built that way. The coax connector had the ground assembly that the cable plugs into, but I was stunned to see that there was no female socket for the coax center wire to plug into. It seems that because the coax was pushed at an angle from being in the shield cage, that the side force on the wire is all that made the center conductor touch the (unsoldered) plated through hole on the circuit board. There was no indication that any repair soldering (or unsoldering) had been done in that area.



Very luckily a friend who had been winding down his Drake collection a while back had offered me a few of the connector parts that he had acquired during his years of working on TR7s, as he knew I was trying to keep mine (OK, more than just one TR7 :) going. So I had exactly the center wire socket for us to push into the circuit board with a tweezers through the center of the ground connector, hold against the board with a small screwdriver and then apply solder on the bottom side. I have no idea where those connector parts could be obtained these days. If anyone does know of a supplier, please reply to this thread.



So now when inspecting the boards and their connectors, make sure the coax connectors have all their parts. If Drake forgot to install it on one board, there may be other ones out there with the same issue. It was by luck that I saw it when unplugging the coax; it would have been easy to miss.



73,

-Glenn/ WB0DKT

Aha! Jim, you solved a mystery for me, as I knew I had seen those connectors somewhere else.

Steve Wedge, W1ES/4

Time flies like an arrow. Fruit flies like a banana.

Sent from [Proton Mail]() for iOS

On Tue, Mar 12, 2024 at 15:49, Jim Shorney <[jimNU0C@...](mailto:On Tue, Mar 12, 2024 at 15:49, Jim Shorney <<a href=)> wrote:

They are similar to Tektronix Peltola connectors in the way they work.



Roughly RG174 size cable with a solid center conductor that slips into a socket soldered to the board that somewhat resembles a machined DIP IC socket contact. The shield connection is a crimped ring that mates with a receptacle that reminds me of a power tube pin socket.

WA4F reportedly has some.

/g/DRAKE-RADIO/message/71107

73

-Jim
NU0C

On Tue, 12 Mar 2024 12:13:20 -0400
"Jerry Kessler" <N4JL.cw@...> wrote:

What is the name/description, manufacturer, and part number of these coaxial connectors?

Also, what is the particular coaxial cable or cables that are compatible with these connectors?



Thanks/73,



Jerry, N4JL





From: [email protected] <[email protected]> On Behalf Of Glenn Hetchler WB0DKT
Sent: Tuesday, March 12, 2024 12:01 AM
To: [email protected]
Subject: [DRAKE-RADIO] Item to check on TR7 plug-in coax connections



A friend who is a new ham and I have taken on a project TR7 in hopes of getting it on the air for him. I have enjoyed mine for 40 years.



As we were doing inspection of the plug-in boards (well aware of the many and varied connector issues) we came across an issue with a plug-in coax that I cannot remember seeing discussed before (or at least recently), so I thought I would warn others. It happened to be on the noise blanker filler board, but could have been on any of them.



That board looked untouched from the factory, so I have to believe it was built that way. The coax connector had the ground assembly that the cable plugs into, but I was stunned to see that there was no female socket for the coax center wire to plug into. It seems that because the coax was pushed at an angle from being in the shield cage, that the side force on the wire is all that made the center conductor touch the (unsoldered) plated through hole on the circuit board. There was no indication that any repair soldering (or unsoldering) had been done in that area.



Very luckily a friend who had been winding down his Drake collection a while back had offered me a few of the connector parts that he had acquired during his years of working on TR7s, as he knew I was trying to keep mine (OK, more than just one TR7 :) going. So I had exactly the center wire socket for us to push into the circuit board with a tweezers through the center of the ground connector, hold against the board with a small screwdriver and then apply solder on the bottom side. I have no idea where those connector parts could be obtained these days. If anyone does know of a supplier, please reply to this thread.



So now when inspecting the boards and their connectors, make sure the coax connectors have all their parts. If Drake forgot to install it on one board, there may be other ones out there with the same issue. It was by luck that I saw it when unplugging the coax; it would have been easy to miss.



73,

-Glenn/ WB0DKT

--

73

-Jim
NU0C