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Re: TR-7 mode switch

 

Don,

On receive, turn on PBT and verify that the front panel PBT control is working.

Tom, AG9X


On Thu, Apr 11, 2024 at 10:01?AM Don Humphrey <dscc1947@...> wrote:
I think so nobody has told me i am transmitting DSB


Re: TR-7 mode switch

 

I think so nobody has told me i am transmitting DSB


Re: TR-7 mode switch

 

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I don’t have a fix but just to clarify it must be transmitting in the mode you have selected?

?

Dan K9DTC

?

From: [email protected] <[email protected]> On Behalf Of Don Humphrey
Sent: Thursday, April 11, 2024 9:56 AM
To: [email protected]
Subject: Re: [DRAKE-RADIO] TR-7 mode switch

?

That sounds reasonable to me, thanks? so how do i fix it.
The TR-7 manual says (I think) that the filter trims off the unwanted sideband.
This is what the trim pots are for . To set the pass band?


Re: TR-7 mode switch

 

That sounds reasonable to me, thanks? so how do i fix it.
The TR-7 manual says (I think) that the filter trims off the unwanted sideband.
This is what the trim pots are for . To set the pass band?


Re: TR-7 mode switch

 

If you are on 40 meters listening to lsb and you flip mode switch
to usb the sig does not change flip to cw no effect.
The only position that makes a difference is AM.


On Thu, Apr 11, 2024 at 10:36?AM Jim Shorney <jimNU0C@...> wrote:

It makes no difference in what exactly? Tuning a signal until it is understood is how you operate a radio. We need more information.

73

-Jim
NU0C

On Thu, 11 Apr 2024 07:17:23 -0700
"Don Humphrey" <dscc1947@...> wrote:

> OK Gang,
> Here's my problem I am restoring a TR-7.
> I almost have it in good order and have made a few
> contacts.
> But none of the mode switch positions make any difference.
> lsb, usb, cw, rtty make no difference.
> Just tune in the sig until it's understood.
> I have calibrated the pots on power board and tried
> different filters. Help please.
> TNX,
>
>
>
>
>



--

73

-Jim
NU0C






Re: TR-7 mode switch

 

I think he means it is in "BFO" mode only no sidebands.

Dan K9DTC

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Shorney
Sent: Thursday, April 11, 2024 9:37 AM
To: [email protected]
Subject: Re: [DRAKE-RADIO] TR-7 mode switch


It makes no difference in what exactly? Tuning a signal until it is
understood is how you operate a radio. We need more information.

73

-Jim
NU0C

On Thu, 11 Apr 2024 07:17:23 -0700
"Don Humphrey" <dscc1947@...> wrote:

OK Gang,
Here's my problem I am restoring a TR-7.
I almost have it in good order and have made a few contacts.
But none of the mode switch positions make any difference.
lsb, usb, cw, rtty make no difference.
Just tune in the sig until it's understood.
I have calibrated the pots on power board and tried different filters.
Help please.
TNX,






--

73

-Jim
NU0C


Re: TR-7 mode switch

 

It makes no difference in what exactly? Tuning a signal until it is understood is how you operate a radio. We need more information.

73

-Jim
NU0C

On Thu, 11 Apr 2024 07:17:23 -0700
"Don Humphrey" <dscc1947@...> wrote:

OK Gang,
Here's my problem I am restoring a TR-7.
I almost have it in good order and have made a few
contacts.
But none of the mode switch positions make any difference.
lsb, usb, cw, rtty make no difference.
Just tune in the sig until it's understood.
I have calibrated the pots on power board and tried
different filters. Help please.
TNX,






--

73

-Jim
NU0C


TR-7 mode switch

 

OK Gang,
Here's my problem I am restoring a TR-7.
I almost have it in good order and have made a few
contacts.
But none of the mode switch positions make any difference.
lsb, usb, cw, rtty make no difference.
Just tune in the sig until it's understood.
I have calibrated the pots on power board and tried
different filters. Help please.
TNX,


Re: For Sale Drake RV7 VFO and Original Manual

 

Thanks Peter,

Will do.

Bill


Several Drake items available from estates.

 

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?

Because there are so many items, please contact me at n8zmtwh at mymetronet.net for details of specific items and pricing.

?

Located near Dayton, so can arrange easy inspection and pickup at Hamvention. Will ship, if necessary, at cost.

?

I have not checked any of these to see if they work; simply haven’t had time and am cautious about firing up old electrolytics and tubes of unknown age.

?

Will provide pictures on request, as there would be too many bytes involved to include them here.

?

Will discuss prices when contacted, and while I have no need to be greedy, I also need to be fair to the widows involved.

?

______________________________

?

1A w/original paper manual

?

TR4C/MS4/PS

?

T4X/R4C/ MN2000/MS4/PS/ Matching Homebrew control console.?

Prefer to not break up this set. In Drake boxes. Interconnect cables included.

?

UV-3 w/all three bands

?

MN4

?

MN2000

?

MN-2700

?

_______________________________

?

The widows get all the money.

?

?

Thanks, and enjoy!

?

Tom, N8ZM


Found- Re: WTB TR-4 Plate meter

 

Thanks to everyone who replied. I found a meter so am all set.


Re: For Sale Drake RV7 VFO and Original Manual

 

Bill:

You should send WB4HFN that photo of the QC tag for the RV-7.? That one is not yet listed in his serial # database.

Charlie Talbot, K3ICH, has the chrome?inserts for Drake knobs (for your CW-75).? E-mail is pincon@...


73,
Peter
VE7PS


On Wed, Apr 10, 2024 at 11:26?AM Bill via <billnopic=[email protected]> wrote:
For Sale Drake RV7 VFO and Original Manual
Part of my ongoing sale of my TR7 and peripherals.
VFO is in good condition and functions. In all modes the frequency on the TR7 follows the RV7. I have never used it in the over 10 years I have owned it.
The cabinet was covered? with adhesive vinyl by previous owner. So obviously something was not right with the paint. I have never pulled it off.
$165 includes shipping.
Extra Bonus Quality Control tag from 1978

73
Bill
W4WCS
billnopic@...


For Sale Drake RV7 VFO and Original Manual

 

For Sale Drake RV7 VFO and Original Manual
Part of my ongoing sale of my TR7 and peripherals.
VFO is in good condition and functions. In all modes the frequency on the TR7 follows the RV7. I have never used it in the over 10 years I have owned it.
The cabinet was covered? with adhesive vinyl by previous owner. So obviously something was not right with the paint. I have never pulled it off.
$165 includes shipping.
Extra Bonus Quality Control tag from 1978

73
Bill
W4WCS
billnopic@...


Re: For Sale Drake CW-75 CW Electronic Keyer

 

Well just noticed the speed dial chrome cap is missing. hmmm It was there at some point.
We can cuss and discuss :-)


For Sale Drake CW-75 CW Electronic Keyer

 

For Sale Drake CW-75 CW Electronic Keyer
Part of my ongoing sale of my TR7 and peripherals.
This keyer is in excellent condition. I have owned it for over 10 years. Never used it. Tested it with a standard key. Works as determined by me. :-)
More pictures available if needed.
Original Manual included in Very Good condition. Except for where the previous owner marked the spots for hole punch. Guess you will have to punch it :-)
$235 Shipping included.
73
Bill
W4WCS


Found- Re: WTB TR-4 Plate meter

 

Thanks to everyone who replied. I found a meter so no longer have a need.

Regards

Kevin M. W2AQY


Re: WTB TR-4 Plate meter

 

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Huh ? ?You initially posted a need for a plate meter.

73,
Bill
KJ5BNE


On Apr 9, 2024, at 6:02?PM, Tim KD2SC via groups.io <kd2sc@...> wrote:

?
Kevin I am looking for a 9 mhz crystal not a meter at the moment. The crystal is located in the back of the TR4C.?
Thanks Tim KD2SC?

On Tuesday, April 9, 2024 at 06:34:27 PM EDT, Kevin Kampman <k8kvn@...> wrote:


Yes, I have one.?
<IMG_2715.jpeg>

--
73, Kevin, K8KVN
<IMG_2715.jpeg>


Re: WTB TR-4 Plate meter

 

Kevin I am looking for a 9 mhz crystal not a meter at the moment. The crystal is located in the back of the TR4C.?
Thanks Tim KD2SC?

On Tuesday, April 9, 2024 at 06:34:27 PM EDT, Kevin Kampman <k8kvn@...> wrote:


Yes, I have one.?
--
73, Kevin, K8KVN


Re: WTB TR-4 Plate meter

 

Yes, I have one.?
--
73, Kevin, K8KVN


Re: R4-C

 

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Thanks. I will be ordering some

Skip?


On Apr 9, 2024, at 11:09, Michael Jensen <kavigal@...> wrote:

?Those manuals are worrh every $
Best money I’ve spend in a long time ?

Sendt fra min iPhone

Den 9. apr. 2024 kl. 17.02 skrev VE7PS <ve7ps@...>:

?
Skip:

It's on "Board 2".? With the radio upside down and facing you, it's the board right next to the two can caps on the left side.? C100 is a tantalum cap almost dead centre of the board.

Note: The K4OAH Service Manuals make finding these parts easy.? I've had them since 2004.? Still available at K4OAH.com from Garey's wife.

73
Peter
VE7PS

On Tue, Apr 9, 2024 at 5:19?AM Skip via <wb4yvo=[email protected]> wrote:
Can someone tell me or a picture would help better? Where C100 is?? Should be a .22 uf?

Skip