On 2023-05-28 13:35, Ronnie Hull - W5SUM wrote: Drive around and see if one of your neighbors has solar cells on roof.
Notorious noise generators Do they make noise even at night? I've got a serious noise problem on 40M. Sounds like a washing machine running. Peaks about every 15kHz. Around here, most of the houses have solar, including mine. But the lot is large, and my antenna is about a hundred feet away from the house. If the problem is *my* solar, then I might be able to hire somebody to do something about it. At my age, I don't climb roofs anymore. - Jerry, KF6VB
|
Drive around and see if one of your neighbors has solar cells on roof. Notorious noise generators
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On May 28, 2023, at 12:18 PM, n4buq <n4buq@...> wrote:
? Frank - That's good advice.? I'll have to try that if/when the problem returns.
Thanks,
Barry - N4BUQ
From: "Frank Barnes" <fbw4npn@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Sunday, May 28, 2023 9:35:41 AM
Subject: Re: [DRAKE-RADIO] Another 2-B Question
The next time you experience the "white noise," disconnect the antenna.? If the white noise disappears, then it is being generated externally, almost certainly by some electronic gadget; not necessarily in your house.? ?If the white noise persists after disconnecting the antenna, something in the radio is causing it, such as W1NR suggests. On Sun, May 28, 2023 at 9:22?AM n4buq < n4buq@...> wrote: I was thinking that the noise might have been in the audio chain.? I'll see if I have any spares and try swapping them.
Thanks,
Barry - N4BUQ
----- Original Message -----
> From: "Michael McCarthy" <lists@...>
> To: "DRAKE-RADIO" <[email protected]>
> Sent: Sunday, May 28, 2023 8:11:37 AM
> Subject: Re: [DRAKE-RADIO] Another 2-B Question
> Not specific to the 2-B but I have had noisy audio tubes do that. If it
> happens again, try swapping the 6AQ5 and/or 8BN8.
>
> Mike, W1NR
>
> On 5/28/2023 9:03 AM, n4buq wrote:
>> After an alignment, I noticed my 2-B had a rather noticeable amount of white
>> noise on all bands.? I attributed that to atmospheric and normal background
>> noise; however, the more I listened, the more I thought that might not be
>> normal.
>>
>> Last evening I was listening when suddenly that white noise died out drastically
>> and the signals seemed to stay at the levels they were before the white noise
>> dropped.? That was a rather pleasant surprise and made listening to the radio
>> much more pleasant (and, likely, more normal for that radio).
>>
>> Unless that noise was something outside of the radio, I wonder what might have
>> been causing that noise and what I might need to do to find/correct it.
>>
>> This is a later model (serial number 11893) if that makes any significant
>> difference.
>>
>> Thanks,
>> Barry - N4BUQ
>>
>>
>>
>>
>>
>
>
>
Frank Barnes
W4NPN
Chapel Hill, NC
Grid Square FM05
Cell 919.260.7955
|
Frank - That's good advice.? I'll have to try that if/when the problem returns.
Thanks,
Barry - N4BUQ
From: "Frank Barnes" <fbw4npn@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Sunday, May 28, 2023 9:35:41 AM
Subject: Re: [DRAKE-RADIO] Another 2-B Question
The next time you experience the "white noise," disconnect the antenna.? If the white noise disappears, then it is being generated externally, almost certainly by some electronic gadget; not necessarily in your house.? ?If the white noise persists after disconnecting the antenna, something in the radio is causing it, such as W1NR suggests. On Sun, May 28, 2023 at 9:22?AM n4buq < n4buq@...> wrote: I was thinking that the noise might have been in the audio chain.? I'll see if I have any spares and try swapping them.
Thanks,
Barry - N4BUQ
----- Original Message -----
> From: "Michael McCarthy" <lists@...>
> To: "DRAKE-RADIO" <[email protected]>
> Sent: Sunday, May 28, 2023 8:11:37 AM
> Subject: Re: [DRAKE-RADIO] Another 2-B Question
> Not specific to the 2-B but I have had noisy audio tubes do that. If it
> happens again, try swapping the 6AQ5 and/or 8BN8.
>
> Mike, W1NR
>
> On 5/28/2023 9:03 AM, n4buq wrote:
>> After an alignment, I noticed my 2-B had a rather noticeable amount of white
>> noise on all bands.? I attributed that to atmospheric and normal background
>> noise; however, the more I listened, the more I thought that might not be
>> normal.
>>
>> Last evening I was listening when suddenly that white noise died out drastically
>> and the signals seemed to stay at the levels they were before the white noise
>> dropped.? That was a rather pleasant surprise and made listening to the radio
>> much more pleasant (and, likely, more normal for that radio).
>>
>> Unless that noise was something outside of the radio, I wonder what might have
>> been causing that noise and what I might need to do to find/correct it.
>>
>> This is a later model (serial number 11893) if that makes any significant
>> difference.
>>
>> Thanks,
>> Barry - N4BUQ
>>
>>
>>
>>
>>
>
>
>
Frank Barnes
W4NPN
Chapel Hill, NC
Grid Square FM05
Cell 919.260.7955
|
Not with a 4-position switch.? The 2-A did not have a concentric switch for selecting bandwidth.
I will still guess that this was done by the factory using an R-4 BPF assembly.? It is likely to have been an employee's receiver.? For a while (and I foolishly sold it to make more space) I had a TR-3 that was converted as much as possible to be a TR-4.? Holes were punched for the new tubes for the sidetone, etc, the front panel was changed, the wiring updated using the same wire as factory for the relative power out circuit, finals changed to 6JB6's, just everything that was needed to make it a TR-4 -- EXCEPT that it still had the 6AU6 PTO and the "soup can" filters.? It was a great-sounding rig with that soft filtering.? In my examination of it, it was either done at the factory or an extremely-skilled ham did all of those changes, using the same wire, Greenlee punches, etc., which back in the day were pretty expensive.
Your set is quite interesting.? I'd be interested in seeing photos of the areas around the BPF.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Sunday, May 28th, 2023 at 10:37 AM, amfone via groups.io <amfone20000@...> wrote:
Billy a friend of mine Ralph NO8W has a 2B just like that with the extra wider filtering. The 2A had that filtering so if its an early S/N my bet is Drake just continued to make early 2B's that way and changed later in the S/N.
73 Tim
WB8UHZ
On Saturday, May 27, 2023 at 10:23:40 PM EDT, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
That¡¯s an early serial number. I¡¯m still betting that someone who worked there was the owner. This receiver was built in 1961 and the first R-4¡¯s came out in 1965. It wasn¡¯t a huge difference in the PBT assemblies but it did go from 3 to 4 widths with a super wide setting and a ¡°wide-narrow¡±. ?The lines in the sticker look like factory graphics.?
It¡¯s a really interesting set!
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 27, 2023 at 19:36, Billy Pickering < pickeringw@...> wrote: Here is a picture of the back.
On Sat, May 27, 2023 at 07:11 PM, Steve Wedge, W1ES/4 wrote:
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
?
73,
?
Steve Wedge, W1ES/4
?
Time flies like an arrow.? Fruit flies like a banana.
?
Sent with secure email.
?
------- Original Message ------- On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
Billy a friend of mine Ralph NO8W has a 2B just like that with the extra wider filtering. The 2A had that filtering so if its an early S/N my bet is Drake just continued to make early 2B's that way and changed later in the S/N.
73 Tim
WB8UHZ
On Saturday, May 27, 2023 at 10:23:40 PM EDT, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
That¡¯s an early serial number. I¡¯m still betting that someone who worked there was the owner. This receiver was built in 1961 and the first R-4¡¯s came out in 1965. It wasn¡¯t a huge difference in the PBT assemblies but it did go from 3 to 4 widths with a super wide setting and a ¡°wide-narrow¡±. ?The lines in the sticker look like factory graphics.?
It¡¯s a really interesting set!
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 27, 2023 at 19:36, Billy Pickering < pickeringw@...> wrote: Here is a picture of the back.
On Sat, May 27, 2023 at 07:11 PM, Steve Wedge, W1ES/4 wrote:
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
?
73,
?
Steve Wedge, W1ES/4
?
Time flies like an arrow.? Fruit flies like a banana.
?
Sent with secure email.
?
------- Original Message ------- On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show. ![]()
|
The next time you experience the "white noise," disconnect the antenna.? If the white noise disappears, then it is being generated externally, almost certainly by some electronic gadget; not necessarily in your house.? ?If the white noise persists after disconnecting the antenna, something in the radio is causing it, such as W1NR suggests.
On Sun, May 28, 2023 at 9:22?AM n4buq < n4buq@...> wrote: I was thinking that the noise might have been in the audio chain.? I'll see if I have any spares and try swapping them.
Thanks,
Barry - N4BUQ
----- Original Message -----
> From: "Michael McCarthy" <lists@...>
> To: "DRAKE-RADIO" <[email protected]>
> Sent: Sunday, May 28, 2023 8:11:37 AM
> Subject: Re: [DRAKE-RADIO] Another 2-B Question
> Not specific to the 2-B but I have had noisy audio tubes do that. If it
> happens again, try swapping the 6AQ5 and/or 8BN8.
>
> Mike, W1NR
>
> On 5/28/2023 9:03 AM, n4buq wrote:
>> After an alignment, I noticed my 2-B had a rather noticeable amount of white
>> noise on all bands.? I attributed that to atmospheric and normal background
>> noise; however, the more I listened, the more I thought that might not be
>> normal.
>>
>> Last evening I was listening when suddenly that white noise died out drastically
>> and the signals seemed to stay at the levels they were before the white noise
>> dropped.? That was a rather pleasant surprise and made listening to the radio
>> much more pleasant (and, likely, more normal for that radio).
>>
>> Unless that noise was something outside of the radio, I wonder what might have
>> been causing that noise and what I might need to do to find/correct it.
>>
>> This is a later model (serial number 11893) if that makes any significant
>> difference.
>>
>> Thanks,
>> Barry - N4BUQ
>>
>>
>>
>>
>>
>
>
>
-- Frank Barnes
W4NPN
Chapel Hill, NC
Grid Square FM05
Cell 919.260.7955
|
I was thinking that the noise might have been in the audio chain. I'll see if I have any spares and try swapping them.
Thanks,
Barry - N4BUQ
toggle quoted message
Show quoted text
----- Original Message ----- From: "Michael McCarthy" <lists@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Sunday, May 28, 2023 8:11:37 AM
Subject: Re: [DRAKE-RADIO] Another 2-B Question Not specific to the 2-B but I have had noisy audio tubes do that. If it
happens again, try swapping the 6AQ5 and/or 8BN8.
Mike, W1NR
On 5/28/2023 9:03 AM, n4buq wrote:
After an alignment, I noticed my 2-B had a rather noticeable amount of white
noise on all bands. I attributed that to atmospheric and normal background
noise; however, the more I listened, the more I thought that might not be
normal.
Last evening I was listening when suddenly that white noise died out drastically
and the signals seemed to stay at the levels they were before the white noise
dropped. That was a rather pleasant surprise and made listening to the radio
much more pleasant (and, likely, more normal for that radio).
Unless that noise was something outside of the radio, I wonder what might have
been causing that noise and what I might need to do to find/correct it.
This is a later model (serial number 11893) if that makes any significant
difference.
Thanks,
Barry - N4BUQ
|
Not specific to the 2-B but I have had noisy audio tubes do that. If it happens again, try swapping the 6AQ5 and/or 8BN8.
Mike, W1NR
toggle quoted message
Show quoted text
On 5/28/2023 9:03 AM, n4buq wrote: After an alignment, I noticed my 2-B had a rather noticeable amount of white noise on all bands. I attributed that to atmospheric and normal background noise; however, the more I listened, the more I thought that might not be normal.
Last evening I was listening when suddenly that white noise died out drastically and the signals seemed to stay at the levels they were before the white noise dropped. That was a rather pleasant surprise and made listening to the radio much more pleasant (and, likely, more normal for that radio).
Unless that noise was something outside of the radio, I wonder what might have been causing that noise and what I might need to do to find/correct it.
This is a later model (serial number 11893) if that makes any significant difference.
Thanks,
Barry - N4BUQ
|
After an alignment, I noticed my 2-B had a rather noticeable amount of white noise on all bands. I attributed that to atmospheric and normal background noise; however, the more I listened, the more I thought that might not be normal.
Last evening I was listening when suddenly that white noise died out drastically and the signals seemed to stay at the levels they were before the white noise dropped. That was a rather pleasant surprise and made listening to the radio much more pleasant (and, likely, more normal for that radio).
Unless that noise was something outside of the radio, I wonder what might have been causing that noise and what I might need to do to find/correct it.
This is a later model (serial number 11893) if that makes any significant difference.
Thanks,
Barry - N4BUQ
|
Since the plate current meter is not switched (it¡¯s always connected), I would check the meter itself first, followed by the resistor at the B-
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sun, May 28, 2023 at 00:52, K6OXN Bob < bobk6oxn@...> wrote: [Edited Message Follows]
Just got my L7 PS mod'd with the Harback mod. It has about 1800 volts on CW and 2600 on SSB. I have control over the IG but no reading on the Plate Current meter. My WH7 and MN2000 both show good power out.? What should I be looking for in the L7?? Still learning on this old heavy beast.? Have tried to tune up on both CW and SSB and it seems to work. I am getting out about 800 watts on CW can't tell on SSB. I am using 115vac at this time. Will be upgrading to 220 in the near future.
|
Just got my L7 PS mod'd with the Harback mod. It has about 1800 volts on CW and 2600 on SSB. I have control over the IG but no reading on the Plate Current meter. My WH7 and MN2000 both show good power out.? What should I be looking for in the L7?? Still learning on this old heavy beast.? Have tried to tune up on both CW and SSB and it seems to work. I am getting out about 800 watts on CW can't tell on SSB. I am using 115vac at this time. Will be upgrading to 220 in the near future.
|
That¡¯s an early serial number. I¡¯m still betting that someone who worked there was the owner. This receiver was built in 1961 and the first R-4¡¯s came out in 1965. It wasn¡¯t a huge difference in the PBT assemblies but it did go from 3 to 4 widths with a super wide setting and a ¡°wide-narrow¡±. ?The lines in the sticker look like factory graphics.?
It¡¯s a really interesting set!
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 27, 2023 at 19:36, Billy Pickering < pickeringw@...> wrote: Here is a picture of the back.
On Sat, May 27, 2023 at 07:11 PM, Steve Wedge, W1ES/4 wrote:
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
?
73,
?
Steve Wedge, W1ES/4
?
Time flies like an arrow.? Fruit flies like a banana.
?
Sent with secure email.
?
------- Original Message ------- On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
So what does it look like under the chassis, just behind the passband tuning knob? Could you send a photo of that view? 2-B serial numbers went up to the 12XXX range so this isn't a late model.
Dan
WB4GRA
|
Considering the serial numbers at WB4HFN seem to indicate this radio is low in the order, maybe it is a homebrew experiment with a PBT from the R-4 series?
Bob Loving K9JU
Maryville, TN
On Saturday, May 27, 2023 at 07:36:38 PM EDT, Billy Pickering <pickeringw@...> wrote:
Here is a picture of the back.
On Sat, May 27, 2023 at 07:11 PM, Steve Wedge, W1ES/4 wrote:
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
?
73,
?
Steve Wedge, W1ES/4
?
Time flies like an arrow.? Fruit flies like a banana.
?
Sent with secure email.
?
------- Original Message ------- On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show. ![]()
|
Here is a picture of the back.
On Sat, May 27, 2023 at 07:11 PM, Steve Wedge, W1ES/4 wrote:
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
?
73,
?
Steve Wedge, W1ES/4
?
Time flies like an arrow.? Fruit flies like a banana.
?
Sent with secure email.
?
------- Original Message ------- On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
As Paul Harvey would have said? ... "now here's a strange...."??
What a cool find. I've never seen such a thing. Thanks for sharing it.
John K5MO
On Sat, May 27, 2023 at 7:11?PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd < garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
I was just going to mention that.? What's the serial number of the 2-B?? Could it have been a test mule for the factory to try out the 4-position BPF?
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Saturday, May 27th, 2023 at 6:54 PM, wb6ogd <garywinblad@...> wrote:
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
Billy,
It looks like it has the passband tuner from a R-4 series!? One extra filter width.
73,
Gary
WB6OGD
?
On 05/27/2023 3:41 PM PDT Billy Pickering <pickeringw@...> wrote:
?
?
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show.
|
So my brother in law picked up a 2B at Dalton and while we were checking it out, my father in law said he noticed something different from the other 2B we have. The Passband switch is different and it has a different label on the switch. Not for sure what has been done, it¡¯s fully functional as well. I put a picture up to show. 
|
Re: FS -- 2-AC Calibrator
Sure thing.? Stephen Wedge 555 Woodland Dr Graham, NC? 27253.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Saturday, May 27th, 2023 at 12:04 PM, Dan Presley <N7CQR@...> wrote:
Thanks Steve. I¡¯ll mail a check on Tuesday. If you can email your address directly I¡¯ll get it going and send you mine.?
Dan Presley 503-701-3871 danpresley@me. com? N7CQR@...
On May 27, 2023, at 05:46, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
? I've put it aside for you.? Personal cheque or PP F&F.
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Friday, May 26th, 2023 at 3:01 PM, Dan Presley <N7CQR@...> wrote:
I¡¯ll grab it Steve. Out of town until Monday but we can make arrangements then if that¡¯s okay with you. Thanks. This will complete my 2NT/2C/2CQ setup!
Dan Presley 503-701-3871 danpresley@me. com? N7CQR@...
On May 26, 2023, at 08:24, Steve Wedge, W1ES/4 via groups.io <w1es@...> wrote:
? Previous deal fell through.? This is well-functioning with a somewhat dark chassis but not corroded.? Better than average.? $85 shipped in USA & possessions.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
|
Ronnie Hull - W5SUM
Gary WB6OGD