Re: Drake 7 Series Cabinet Paint
I used a rust oleum black textured, something like That. Can¡¯t think of the exact name of it. ?Then I knocked down the glossy finish with a flat black. While not powder coated, it has a powder coated look. It¡¯s hard to tell the difference between the speaker I did and my R7a. I¡¯ll post the exact paint names tomorrow. I have the cans in the garage.?
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On May 1, 2023, at 7:08 AM, Michael Smith via groups.io <tw8kcabpilot@...> wrote:
?What is the best matching quality paint for seven series cabinets, spray can or otherwise, but not powder coat? ?Is there some kind of primer that can be used to approximate the original surface texture?
Thank you.
Michael Smith, N4KZO
|
Very helpful Steve, 73 OM?
On Sat, May 20, 2023 at 6:57 PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: You¡¯re welcome.?
Remember that the transmitter interface is different between the two. All TR-3/TR-4 sets do not have a reduced output TUNE mode. When you tune up in CW, that¡¯s your power out and the drive control stays the same.?
With the T-4(any) you need to adjust your power out in CW mode. The GAIN control gets advanced much farther for more power out.?
The manuals have the recommended max plate current, which is a good guideline. Remember that most hams did not have accurate power meters ¡°back in the day¡±. Even the W-4 (which is a very good wattmeter)?wasn¡¯t used at every station.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 21:18, Sean (KK6BEB) < seanlynch@...> wrote: Thanks so much Steve, I think you¡¯re exactly right that I¡¯m just seeing the reduction in power due to being in the tune position. Both transmitters are new (to me) and I¡¯m still familiarizing myself with them. Recently received both back from Ron (who did an amazing job of course).
I don¡¯t intend to run them at max power, but was interested in what they¡¯re capable of ¡°real world¡°.
Thanks again, KK6BEB Sean On Sat, May 20, 2023 at 5:49 PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: Firstly, in TUNE mode, you will not get full output with the T-4X. The screen voltage is reduced in TUNE mode. You need to put it into CW mode to see your power out. Fresh tubes should provide 140W or so on 20m ¡ª slightly less on the higher bands and slightly more on the lower bands
The TR-4 should see around 180+ watts out on 40, and fresh tubes would give you over 150W on the higher bands. It is important that the PA is properly loaded to around 450 mA by adjusting the LOAD control after dipping the PLATE control. These values can change if the RF TUNE isn¡¯t set up right.
It¡¯s important for best tube life to not run them at full max and to avoid keying down for prolonged times. I like running my twins at no more than 120W out and my TR-4Cw RIT at 175W or less.
Bear in mind that the difference of 20W from 120W is a fraction of a dB. Ditto for 175 vs 200W.
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 20:17, Sean (KK6BEB) < seanlynch@...> wrote: I have a TR-4Cw and a T-4XB. Both max at about ~100 watts in cw/tune. Curious what others are seeing, I know the transmitters are rated for more but it¡¯s obviously old equipment.
I have some NOS finals for both and my intention was to not do any tube replacements until necessary, but I am curious what kind of performance others are seeing?
Sean KK6BEB
|
You¡¯re welcome.?
Remember that the transmitter interface is different between the two. All TR-3/TR-4 sets do not have a reduced output TUNE mode. When you tune up in CW, that¡¯s your power out and the drive control stays the same.?
With the T-4(any) you need to adjust your power out in CW mode. The GAIN control gets advanced much farther for more power out.?
The manuals have the recommended max plate current, which is a good guideline. Remember that most hams did not have accurate power meters ¡°back in the day¡±. Even the W-4 (which is a very good wattmeter)?wasn¡¯t used at every station.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 21:18, Sean (KK6BEB) < seanlynch@...> wrote: Thanks so much Steve, I think you¡¯re exactly right that I¡¯m just seeing the reduction in power due to being in the tune position. Both transmitters are new (to me) and I¡¯m still familiarizing myself with them. Recently received both back from Ron (who did an amazing job of course).
I don¡¯t intend to run them at max power, but was interested in what they¡¯re capable of ¡°real world¡°.
Thanks again, KK6BEB Sean On Sat, May 20, 2023 at 5:49 PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: Firstly, in TUNE mode, you will not get full output with the T-4X. The screen voltage is reduced in TUNE mode. You need to put it into CW mode to see your power out. Fresh tubes should provide 140W or so on 20m ¡ª slightly less on the higher bands and slightly more on the lower bands
The TR-4 should see around 180+ watts out on 40, and fresh tubes would give you over 150W on the higher bands. It is important that the PA is properly loaded to around 450 mA by adjusting the LOAD control after dipping the PLATE control. These values can change if the RF TUNE isn¡¯t set up right.
It¡¯s important for best tube life to not run them at full max and to avoid keying down for prolonged times. I like running my twins at no more than 120W out and my TR-4Cw RIT at 175W or less.
Bear in mind that the difference of 20W from 120W is a fraction of a dB. Ditto for 175 vs 200W.
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 20:17, Sean (KK6BEB) < seanlynch@...> wrote: I have a TR-4Cw and a T-4XB. Both max at about ~100 watts in cw/tune. Curious what others are seeing, I know the transmitters are rated for more but it¡¯s obviously old equipment.
I have some NOS finals for both and my intention was to not do any tube replacements until necessary, but I am curious what kind of performance others are seeing?
Sean KK6BEB
|
Re: Drake 7 Series Cabinet Paint
Steve, I didn¡¯t see a reply to your query from Gary on this. I used Krylon satin black spray initially but used Rustoleum satin black for the final roll on finish.
--
73
John?N9FCA
|
Thanks so much Steve, I think you¡¯re exactly right that I¡¯m just seeing the reduction in power due to being in the tune position. Both transmitters are new (to me) and I¡¯m still familiarizing myself with them. Recently received both back from Ron (who did an amazing job of course).
I don¡¯t intend to run them at max power, but was interested in what they¡¯re capable of ¡°real world¡°.?
Thanks again, KK6BEB? Sean
On Sat, May 20, 2023 at 5:49 PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: Firstly, in TUNE mode, you will not get full output with the T-4X. The screen voltage is reduced in TUNE?mode. You need to put it into CW mode to see your power out. Fresh tubes should provide 140W or so on 20m ¡ª slightly less on the higher bands and slightly more on the lower bands
The TR-4 should see around 180+ watts out on 40, and fresh tubes would give you over 150W on the higher bands. It is important that the PA is properly loaded to around 450 mA by adjusting the LOAD control after dipping the PLATE control. These values can change if the RF TUNE isn¡¯t set up right.?
It¡¯s important for best tube life to not run them at full max and to avoid keying down for prolonged times. I like running my twins at no more than 120W out and my TR-4Cw RIT at 175W or less.?
Bear in mind that the difference of 20W from 120W is a fraction of a dB. Ditto for 175 vs 200W.?
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 20:17, Sean (KK6BEB) < seanlynch@...> wrote: I have a TR-4Cw and a T-4XB. Both max at about ~100 watts in cw/tune. Curious what others are seeing, I know the transmitters are rated for more but it¡¯s obviously old equipment.
I have some NOS finals for both and my intention was to not do any tube replacements until necessary, but I am curious what kind of performance others are seeing?
Sean KK6BEB
|
Firstly, in TUNE mode, you will not get full output with the T-4X. The screen voltage is reduced in TUNE?mode. You need to put it into CW mode to see your power out. Fresh tubes should provide 140W or so on 20m ¡ª slightly less on the higher bands and slightly more on the lower bands
The TR-4 should see around 180+ watts out on 40, and fresh tubes would give you over 150W on the higher bands. It is important that the PA is properly loaded to around 450 mA by adjusting the LOAD control after dipping the PLATE control. These values can change if the RF TUNE isn¡¯t set up right.?
It¡¯s important for best tube life to not run them at full max and to avoid keying down for prolonged times. I like running my twins at no more than 120W out and my TR-4Cw RIT at 175W or less.?
Bear in mind that the difference of 20W from 120W is a fraction of a dB. Ditto for 175 vs 200W.?
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Sat, May 20, 2023 at 20:17, Sean (KK6BEB) < seanlynch@...> wrote: I have a TR-4Cw and a T-4XB. Both max at about ~100 watts in cw/tune. Curious what others are seeing, I know the transmitters are rated for more but it¡¯s obviously old equipment.
I have some NOS finals for both and my intention was to not do any tube replacements until necessary, but I am curious what kind of performance others are seeing?
Sean KK6BEB
|
I have a TR-4Cw and a T-4XB. Both max at about ~100 watts in cw/tune. Curious what others are seeing, I know the transmitters are rated for more but it¡¯s obviously old equipment.
I have some NOS finals for both and my intention was to not do any tube replacements until necessary, but I am curious what kind of performance others are seeing?
Sean KK6BEB?
|
Re: TR4-CW Service Bulletin
On Fri, May 19, 2023 at 06:33 PM, Chuck Rippel - K8HU and ex - NMN wrote:
Steve, et al...
I just filled in the blank spots in my tube spares for the "C Line" and TR4-CWxit.? Luckily, a core set of spares came with the "C" Line but I found many of the ones I needed had mil-spec versions that were NOS and had late build dates.? There were a few which were not JAN/Mil spec and those were obtained from Frank Krize, K5SVC:
He also sells through E-Bay.
--
Chuck Rippel, K8HU
Yeah.? He even had tube "kits" for the TR-4C and others.?? When you click on the actual links to "Buy Now", it takes you to eBay. And for anyone looking for 12JB6's for a TR-3, he has 4 left? @ $34.95 each (and FYI has 12JB6's for $18....but you have to call them to see how many they have ) ? --
73/Rick
WA6III
*Every post is created using Linux
|
Re: TR4-CW Service Bulletin
Steve, et al...
I just filled in the blank spots in my tube spares for the "C Line" and TR4-CWxit.? Luckily, a core set of spares came with the "C" Line but I found many of the ones I needed had mil-spec versions that were NOS and had late build dates.? There were a few which were not JAN/Mil spec and those were obtained from Frank Krize, K5SVC:
He also sells through E-Bay.
--
Chuck Rippel, K8HU
|
Re: Not much Drake gear today at Dayton
How are the prices? Ham swap prices, or Ebay prices?
- Jerry, KF6VB
|
Not much Drake gear today at Dayton
Although I did buy a nice c line today? 
|
Re: wtb: repairable ac-3 or ac-4
I have one. I'm at Dayton,? spaces 9717, 9718, 9719.
Thanks Ron WB4OQL? Clyde, NC?
I could also use a AC-3 or AC-4 for my TR-3.
This is on my list to look for at Dayton.
Dave KC3AM
On 5/11/2023 6:52 PM, Jim Linsenbardt
wrote:
Hi to all!
I recently got a TR-3 functional and hope to use it on some of the
vintage nets. I'm now looking for a repairable power supply to
pair with it (with or without speaker.) If you happen to have one,
please let me know.
73's and best wishes
Jim
KD0WF
|
Re: wtb: repairable ac-3 or ac-4
GM Jim, Contact me off list.
Ron WB4OQL? Clyde, NC?
Hi Ron,
I won't be at Dayton but would you still be willing to sell it with shipping?
Jim
KD0WF
|
Re: wtb: repairable ac-3 or ac-4
Hi Ron,
I won't be at Dayton but would you still be willing to sell it with shipping?
Jim
KD0WF
|
I notice that the manual seems to be slightly unorganized but not bad.? It's all there and it's not that many pages so that's fine.? Like I said, I really need to reread the entire manual.
I wish I could find a searchable version.
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 11:58:27 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
It¡¯s well after the actual alignment procedure. It¡¯s strange that it is where it is.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Thu, May 18, 2023 at 10:47, n4buq <n4buq@...> wrote: I see now where other places in the manual refers to zeroing the S-Meter as setting it to the "1".? I should read the entire manual! Just curious where the procedure you outline is defined in the manual.? I see where it states it can be set using the calibrator on 80M but are there other places where a more/better procedure is defined? Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 9:10:31 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
on the rear, next to the SENSITIVITY adjustment is the S METER CAL (R67).? You turn down the RF Gain as much as possible and set the meter for S9+60 or the right peg -- whichever comes first :-)? I mention the peg because I had one meter where the needle hit the peg before getting to S9+60.? I was able to remove the plastic cover and bend the peg a little to the right, which fixed it, but some meters may be very difficult or impossible to open without breaking things.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:59 AM, n4buq <n4buq@...> wrote:
There's R-48 (RF GAIN) and R-24 (S METER ZERO).? What's the third component?? Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 8:45:55 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
If you can set all three within the adjustment ranges of the pots then you have a good set.? One of the 2-B's that I'm in the process of completing had an RF GAIN pot that was at 28M (surprisingly, my Fluke 77 measured it!) but was otherwise working.? I paralleled the highest value resistor that I had, which was a 24M 1/2W and got the pot's range down to a max of 13M -- which is within the tolerance of the original part.
The three adjustments do interact somewhat.??
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:08 AM, n4buq <n4buq@...> wrote:
That was what I suspected was the case and I set it there but thought I'd check with the group to be sure. Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 6:52:47 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
Yes. Set for S1.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Wed, May 17, 2023 at 21:32, n4buq <n4buq@...> wrote: For setting the receiver gain in a 2-B, the manual states to zero the S-Meter. Is that supposed to be "1" on the dial? I know 0 != 1, but the meter doesn't have a zero on it. Is it possible that zero is the extreme left-hand side of the meter (just at the point where the needle hits the stop?
Thanks,
Barry - N4BUQ
|
It¡¯s well after the actual alignment procedure. It¡¯s strange that it is where it is.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Thu, May 18, 2023 at 10:47, n4buq < n4buq@...> wrote: I see now where other places in the manual refers to zeroing the S-Meter as setting it to the "1".? I should read the entire manual!
Just curious where the procedure you outline is defined in the manual.? I see where it states it can be set using the calibrator on 80M but are there other places where a more/better procedure is defined?
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 9:10:31 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
on the rear, next to the SENSITIVITY adjustment is the S METER CAL (R67).? You turn down the RF Gain as much as possible and set the meter for S9+60 or the right peg -- whichever comes first :-)? I mention the peg because I had one meter where the needle hit the peg before getting to S9+60.? I was able to remove the plastic cover and bend the peg a little to the right, which fixed it, but some meters may be very difficult or impossible to open without breaking things.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:59 AM, n4buq <n4buq@...> wrote:
There's R-48 (RF GAIN) and R-24 (S METER ZERO).? What's the third component?? Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 8:45:55 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
If you can set all three within the adjustment ranges of the pots then you have a good set.? One of the 2-B's that I'm in the process of completing had an RF GAIN pot that was at 28M (surprisingly, my Fluke 77 measured it!) but was otherwise working.? I paralleled the highest value resistor that I had, which was a 24M 1/2W and got the pot's range down to a max of 13M -- which is within the tolerance of the original part.
The three adjustments do interact somewhat.??
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:08 AM, n4buq <n4buq@...> wrote:
That was what I suspected was the case and I set it there but thought I'd check with the group to be sure. Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 6:52:47 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
Yes. Set for S1.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Wed, May 17, 2023 at 21:32, n4buq <n4buq@...> wrote: For setting the receiver gain in a 2-B, the manual states to zero the S-Meter. Is that supposed to be "1" on the dial? I know 0 != 1, but the meter doesn't have a zero on it. Is it possible that zero is the extreme left-hand side of the meter (just at the point where the needle hits the stop?
Thanks,
Barry - N4BUQ
|
Re: TR4-CW Service Bulletin
toggle quoted message
Show quoted text
From: "Rick" <myr748@...> To: "DRAKE-RADIO" < [email protected]> Sent: Wednesday, May 17, 2023 8:12:34 PM Subject: Re: [DRAKE-RADIO] TR4-CW Service Bulletin
On Wed, May 17, 2023 at 07:56 PM, KL7AM wrote:
I have tube boxes that are factory printed 6EV7 6FQ7
?
And they have 6AU6's in them? Hey, You got an antenna for 75/40 up yet? --
73/Rick
WA6III
*Every post is created using Linux
|
I see now where other places in the manual refers to zeroing the S-Meter as setting it to the "1".? I should read the entire manual!
Just curious where the procedure you outline is defined in the manual.? I see where it states it can be set using the calibrator on 80M but are there other places where a more/better procedure is defined?
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 9:10:31 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
on the rear, next to the SENSITIVITY adjustment is the S METER CAL (R67).? You turn down the RF Gain as much as possible and set the meter for S9+60 or the right peg -- whichever comes first :-)? I mention the peg because I had one meter where the needle hit the peg before getting to S9+60.? I was able to remove the plastic cover and bend the peg a little to the right, which fixed it, but some meters may be very difficult or impossible to open without breaking things.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:59 AM, n4buq <n4buq@...> wrote:
There's R-48 (RF GAIN) and R-24 (S METER ZERO).? What's the third component?? Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 8:45:55 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
If you can set all three within the adjustment ranges of the pots then you have a good set.? One of the 2-B's that I'm in the process of completing had an RF GAIN pot that was at 28M (surprisingly, my Fluke 77 measured it!) but was otherwise working.? I paralleled the highest value resistor that I had, which was a 24M 1/2W and got the pot's range down to a max of 13M -- which is within the tolerance of the original part.
The three adjustments do interact somewhat.??
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:08 AM, n4buq <n4buq@...> wrote:
That was what I suspected was the case and I set it there but thought I'd check with the group to be sure. Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 6:52:47 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
Yes. Set for S1.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Wed, May 17, 2023 at 21:32, n4buq <n4buq@...> wrote: For setting the receiver gain in a 2-B, the manual states to zero the S-Meter. Is that supposed to be "1" on the dial? I know 0 != 1, but the meter doesn't have a zero on it. Is it possible that zero is the extreme left-hand side of the meter (just at the point where the needle hits the stop?
Thanks,
Barry - N4BUQ
|
on the rear, next to the SENSITIVITY adjustment is the S METER CAL (R67).? You turn down the RF Gain as much as possible and set the meter for S9+60 or the right peg -- whichever comes first :-)? I mention the peg because I had one meter where the needle hit the peg before getting to S9+60.? I was able to remove the plastic cover and bend the peg a little to the right, which fixed it, but some meters may be very difficult or impossible to open without breaking things.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:59 AM, n4buq <n4buq@...> wrote:
There's R-48 (RF GAIN) and R-24 (S METER ZERO).? What's the third component??
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 8:45:55 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
If you can set all three within the adjustment ranges of the pots then you have a good set.? One of the 2-B's that I'm in the process of completing had an RF GAIN pot that was at 28M (surprisingly, my Fluke 77 measured it!) but was otherwise working.? I paralleled the highest value resistor that I had, which was a 24M 1/2W and got the pot's range down to a max of 13M -- which is within the tolerance of the original part.
The three adjustments do interact somewhat.??
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
------- Original Message -------
On Thursday, May 18th, 2023 at 9:08 AM, n4buq <n4buq@...> wrote:
That was what I suspected was the case and I set it there but thought I'd check with the group to be sure. Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 6:52:47 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
Yes. Set for S1.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Wed, May 17, 2023 at 21:32, n4buq <n4buq@...> wrote: For setting the receiver gain in a 2-B, the manual states to zero the S-Meter. Is that supposed to be "1" on the dial? I know 0 != 1, but the meter doesn't have a zero on it. Is it possible that zero is the extreme left-hand side of the meter (just at the point where the needle hits the stop?
Thanks,
Barry - N4BUQ
|
There's R-48 (RF GAIN) and R-24 (S METER ZERO).? What's the third component??
Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 8:45:55 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
If you can set all three within the adjustment ranges of the pots then you have a good set.? One of the 2-B's that I'm in the process of completing had an RF GAIN pot that was at 28M (surprisingly, my Fluke 77 measured it!) but was otherwise working.? I paralleled the highest value resistor that I had, which was a 24M 1/2W and got the pot's range down to a max of 13M -- which is within the tolerance of the original part.
The three adjustments do interact somewhat.??
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
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------- Original Message -------
On Thursday, May 18th, 2023 at 9:08 AM, n4buq <n4buq@...> wrote:
That was what I suspected was the case and I set it there but thought I'd check with the group to be sure. Thanks,
Barry - N4BUQ
From: "Steve Wedge, W1ES/4 via groups.io" <w1es@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Thursday, May 18, 2023 6:52:47 AM
Subject: Re: [DRAKE-RADIO] 2-B Gain Setting
Yes. Set for S1.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from Proton Mail for iOS
On Wed, May 17, 2023 at 21:32, n4buq <n4buq@...> wrote: For setting the receiver gain in a 2-B, the manual states to zero the S-Meter. Is that supposed to be "1" on the dial? I know 0 != 1, but the meter doesn't have a zero on it. Is it possible that zero is the extreme left-hand side of the meter (just at the point where the needle hits the stop?
Thanks,
Barry - N4BUQ
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Chuck Rippel - K8HU and ex - NMN
K8CCA