I am restoring a TR-3 and have already restored the AC-3 and purchased a nice MS-4 - I also purchased a D-104 microphone at a local hamfest recently and would like to use it with the TR-3 - has anyone used this mic with a TR-3 successfully?
Thanks in advance and 73's,
Don W.
KD4APP
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Arnie,
I have used this method for quite some time, with all lines, and it is definitely? LOT less hassle than swamping the premixer.? The tuned band circuits are pretty much identical across the versions (A,B,C).
Another thing to be aware of is that when aligning the transmitter, the caps are adjusted with no receiver or cables connected.? The INJ cable was designed with a specific capacitance so that it should match when connected together.? Some trouble comes when a substitute cable is used because it throws off the tuning.? If you have a different INJ cable (using coax or a different length), then the transmitter and receiver will need to be aligned when they're connected.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Tuesday, March 28th, 2023 at 9:24 AM, W8DU_Arnie <mdjdmi@...> wrote:
Rob:
Would the procedures set forth in that document also be applicable to a R4b / T4xc combo?
Tnc es 73 de Arnie W8DU
|
The ones at AES look identical to the ones I have seen in some of my Collins knobs.? It may be time to experiment and see if they'd work with the Drake knobs that have no setscrew.? Many times, those screwless knobs get loose due to the spring wearing out.
I'll pull one off my second Collins receiver and try it on my TR-4Cw RIT, as that rig will be visiting the bench soon to look at the Squirrely behaviour on 20m.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Tuesday, March 28th, 2023 at 8:13 AM, John K5MO <johnk5mo@...> wrote:
Man, that's an obscure niche product line.
Great find! John
KNOB SPRINGS
LECTRA Fasteners (Arvada, CO)
Manufacturer of D, D with barbs and double-D inserts used with control knobs
CATALOG
greg, w9gb
chicago
|
Rob:
Would the procedures set forth in that document also be applicable to a R4b / T4xc combo?
Tnc es 73 de Arnie W8DU
|
Man, that's an obscure niche product line.
Great find! John
KNOB SPRINGS
LECTRA Fasteners (Arvada, CO)
Manufacturer of D, D with barbs and double-D inserts used with control knobs
CATALOG
greg, w9gb
chicago
|
KNOB SPRINGS
LECTRA Fasteners (Arvada, CO)
Manufacturer of D, D with barbs and double-D inserts used with control knobs
CATALOG
greg, w9gb
chicago
|
Re: TR7/R7 Extender Boards and Puller
Jim and Stan,
Thank you for the puller information.
Chuck
|
Hi Ralph,
?
This isn’t two rigs, but one receiver and one transmitter that can be operated as separates or transceive off of either VFO.
?
With this much gain discrepancy between 80m and 15 meters there is a problem, likely alignment.? There could be some variation in the different band crystal
output level, but I doubt it.? For certain the AGC threshold is all over the map.? A 1 microvolt signal (-107 dBm) should read S3 on all bands 80 – 10 meters.? With those S meter readings there is no chance the S meter will read S3 at -107 dBm on all bands.
?
With low gain on 80 and 40m reception may not be drastically affected since band noise is so much higher on the low bands.? The bottom line is Skip asked if
this was the way the R-4C should operate and it is not operating anywhere near spec.
?
Rob, NC0B
?
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Show quoted text
From: [email protected] [mailto:[email protected]]
On Behalf Of Ralph Mowery via groups.io
Sent: Monday, March 27, 2023 4:15 PM
To: [email protected]; [email protected]
Subject: Re: [DRAKE-RADIO] Drake T4XC and R4C
?
People would be better off if they scraped the numbers off the old rigs s-meters.
As you have a calibrated generator you probably have a meter you can put across the speaker.? Send in a low level signal in the two rigs and see if you can hear or measure the audio at
the speaker and see if the two? rigs seem to hear the weak signal equally.? This will tell you if the low s-meter indicates a problem or just a low meter reading.
On Monday, March 27, 2023 at 04:51:31 PM EDT, Skip via groups.io <wb4yvo@...> wrote:
Haven't powered up in a while. So I thought I would..? Measured the signal strength using a Calibrated HP Signal Generator..? at -73DBM.? OR S9..
I got the following..
??????????????????? R4C??????????? T4XC
3.5 ?? Mhz??????? S6????????????????? S2
7.1??? Mhz??????? S8????????????????? S9
14? ?? Mhz??????? S9????????????????? +10
21???? Mhz??????? +10??????????????? +10
28.5? Mhz???????? S9???????????????? +10
They should all be the same I would think...They are NOT
Question? Why??
Does this need a good alignment?? Looks like the 3.5 Mhz is way off..
Skip
|
Re: TR7/R7 Extender Boards and Puller
Yeah,
The spacing on the Drake extractor seem to be a bit short.? Seems like
it was designed to lift one end of the board, then finish extracting the
board with the hole on the other end of the board.
73
Stan
KM4HQE
toggle quoted message
Show quoted text
On 3/27/23 20:19, Jim Shorney wrote: I like PA0CMU's copy better. Easier on the fingers. :)
Of course a classic PC slot cover works best for the DR7.
73
-Jim
NU0C
On Tue, 28 Mar 2023 00:48:38 +0000
"Stan Gammons via groups.io" <buttercup11421@...> wrote:
Here's a pic of the board extractor I have.? Seems like I got it with
the extender board kit?? Or I got it when I ordered the service manual.
Too much water under the bridge. I'm not sure.
73
Stan
KM4HQE
On 3/27/23 19:40, Jim Shorney wrote:
You can find instructions for making your own copy of the Drake board extractor near the bottom of this page:
73
-Jim
NU0C
On Mon, 27 Mar 2023 15:16:19 -0700
"aa5wg via groups.io" <aa5wg@...> wrote:
Hello to the group.
I am looking for a set of extender boards and puller for the Drake TR7/R7.
Thank you for your time and consideration.
73,
Chuck
aa5wg@...
231-668-1115
|
Re: TR7/R7 Extender Boards and Puller
I like PA0CMU's copy better. Easier on the fingers. :) Of course a classic PC slot cover works best for the DR7. 73 -Jim NU0C On Tue, 28 Mar 2023 00:48:38 +0000 "Stan Gammons via groups.io" <buttercup11421@...> wrote: Here's a pic of the board extractor I have.? Seems like I got it with
the extender board kit?? Or I got it when I ordered the service manual.?
Too much water under the bridge. I'm not sure.
73
Stan
KM4HQE
On 3/27/23 19:40, Jim Shorney wrote:
You can find instructions for making your own copy of the Drake board extractor near the bottom of this page:
73
-Jim
NU0C
On Mon, 27 Mar 2023 15:16:19 -0700
"aa5wg via groups.io" <aa5wg@...> wrote:
Hello to the group.
I am looking for a set of extender boards and puller for the Drake TR7/R7.
Thank you for your time and consideration.
73,
Chuck
aa5wg@...
231-668-1115
|
Re: TR7 Extender Boards for sale. And a bad DR7 board, maybe.
Oops. Missed one. RIT centering also requires the Jumper Board if you have a very early Parent Board. Later boards have a bottom access hole in the Parent. On Mon, 27 Mar 2023 19:46:37 -0500 "Jim Shorney via groups.io" <jimNU0C@...> wrote: The only board you need for alignment is the Jumper Board for VCO and Translator alignment. In my experience the VCO and Translator rarely need alignment. They pretty much work or they don't. IIRC the Carrier Balance pot is accessible though a hole in the DR7. 2nd IF/Audio cans through rear panel holes. Most of the boards you would NOT want to put on extenders to align or alignment will not be optimal.
73
-Jim
NU0C
|
Re: TR7/R7 Extender Boards and Puller
Here's a pic of the board extractor I have.? Seems like I got it with
the extender board kit?? Or I got it when I ordered the service manual.?
Too much water under the bridge. I'm not sure.
73
Stan
KM4HQE
toggle quoted message
Show quoted text
On 3/27/23 19:40, Jim Shorney wrote: You can find instructions for making your own copy of the Drake board extractor near the bottom of this page:
73
-Jim
NU0C
On Mon, 27 Mar 2023 15:16:19 -0700
"aa5wg via groups.io" <aa5wg@...> wrote:
Hello to the group.
I am looking for a set of extender boards and puller for the Drake TR7/R7.
Thank you for your time and consideration.
73,
Chuck
aa5wg@...
231-668-1115
|
Re: TR7 Extender Boards for sale. And a bad DR7 board, maybe.
The only board you need for alignment is the Jumper Board for VCO and Translator alignment. In my experience the VCO and Translator rarely need alignment. They pretty much work or they don't. IIRC the Carrier Balance pot is accessible though a hole in the DR7. 2nd IF/Audio cans through rear panel holes. Most of the boards you would NOT want to put on extenders to align or alignment will not be optimal. 73 -Jim NU0C On Mon, 27 Mar 2023 09:42:56 -0500 "Keith Erickson" <kognw@...> wrote: Extender boards needed for trouble shooting, alignment think not so much.
Keith
K0GNW
On Mar 27, 2023, at 4:36 AM, aa5wg via groups.io <aa5wg@...> wrote:
?Chuck Pool - AA5WG
Suttons Bay, Michigan
231-668-1115
aa5wg@...
|
Re: TR7/R7 Extender Boards and Puller
You can find instructions for making your own copy of the Drake board extractor near the bottom of this page: 73 -Jim NU0C On Mon, 27 Mar 2023 15:16:19 -0700 "aa5wg via groups.io" <aa5wg@...> wrote: Hello to the group.
I am looking for a set of extender boards and puller for the Drake TR7/R7.
Thank you for your time and consideration.
73,
Chuck
aa5wg@...
231-668-1115
|
Whoops, my message was lost… NO, I haven’t done the 6146 mod and don’t? plan to unless I blew my 6JB6s and I couldn’t find any more. ?Seeing as how I have NEVER LOST ANY final since 1965, I am doubtful I ever will have to! 73, Gary? WB6OGD?
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Show quoted text
On Mar 27, 2023, at 5:03 PM, W6MQI via groups.io <w6mqi@...> wrote:
?Are you thinking of or have done the 6146 mod? Never really heard of anyone doing this except K5DKZ
Dave
|
On Mar 27, 2023, at 5:03 PM, W6MQI via groups.io <w6mqi@...> wrote:
?Are you thinking of or have done the 6146 mod? Never really heard of anyone doing this except K5DKZ
Dave
|
Are you thinking of or have done the 6146 mod? Never really heard of anyone doing this except K5DKZ
Dave
|
Hi John, Thanks for your reply. Would you contact me please at aa5wg@...?or? 231-668-1115. Sir, thank you. 73, Chuck?
|
TR7/R7 Extender Boards and Puller
Hello to the group. I am looking for a set of extender boards and puller for the Drake TR7/R7. Thank you for your time and consideration. 73, Chuck aa5wg@...231-668-1115
|
People would be better off if they scraped the numbers off the old rigs s-meters.
As you have a calibrated generator you probably have a meter you can put across the speaker.? Send in a low level signal in the two rigs and see if you can hear or measure the audio at the speaker and see if the two? rigs seem to hear the weak signal equally.? This will tell you if the low s-meter indicates a problem or just a low meter reading.
Ralph ku4pt
On Monday, March 27, 2023 at 04:51:31 PM EDT, Skip via groups.io <wb4yvo@...> wrote:
Haven't powered up in a while. So I thought I would..? Measured the signal strength using a Calibrated HP Signal Generator..? at -73DBM.? OR S9.. I got the following.. ??????????????????? R4C??????????? T4XC 3.5 ?? Mhz??????? S6????????????????? S2 7.1??? Mhz??????? S8????????????????? S9 14? ?? Mhz??????? S9????????????????? +10 21???? Mhz??????? +10??????????????? +10 28.5? Mhz???????? S9???????????????? +10 They should all be the same I would think...They are NOT Question? Why?? Does this need a good alignment?? Looks like the 3.5 Mhz is way off.. Skip
_._,_._,_
|
Greg W9GB
Rob Sherwood
Jim Shorney
Gary WB6OGD
W6MQI