Dean - You have done an awesome restoration on your 2B; super congratulations on what you have done.? The front panel looks just like Drake made it.....minus the original knobs....however, yours looks terrific.? I have a 2B, original...yours look 'almost' better than mine.? Well done sir!?? 73, Larry KC8JX
On Tuesday, February 20, 2024 at 09:35:49 AM EST, K5DH via groups.io <mustang_maniac@...> wrote:
I bought a restorable 2B with 2AC off Craigslist last year from a fellow ham in Florida for $50 plus shipping.? It did not require any unusual work to get it going.? I replaced a couple of weak tubes, replaced all of the electrolytic caps, touched up the alignment, replaced the missing 100 KHz calibrator crystal, and installed a 3-wire line cord for safety.? That was all it took to make it work right.? While I had it on the bench, I removed the front panel, cleaned it with soap and water, then used a mild automotive polishing compound to remove paint oxidation and bring up the shine.? I have since added crystals for 30 meters and the "A" segment of 10 meters using the little HC-49 crystals installed in HC-6 holders.? When I received the 2B the only original Drake knob it had was the FREQUENCY knob.? The rest were old generic knobs out of someone's junkbox.? I installed a matching set of modern aluminum knobs purchased off eBay.? They don't look "right" but they don't look bad, and they'll do until I can find the correct knobs.?  73, Dean K5DH
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Re: R-4B: Garbled Audio on 40m
Yes Steve, the one with the glue inside for lubrication, hi hi...
It had to come apart for that anyway.
73,
Gary
WB6OGD
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Look back at my post #72582
I just checked, they still are selling the last 2 knobs!?? I thought I bought the last two!!
Not cheap but available.? Keep the guitar guys from buying them up.
73,
Gary
WB6OGD
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I will put up some pictures of my setup and what it looks like on my other radios later tonight when i get home or tomorrow morning.? Thanks for the help.
Mark
On Tue, Feb 20, 2024 at 8:55?AM Mark KF0KZP via <fleischtpnl= [email protected]> wrote: Both.? I have listened on a couple different radios I have and have seen the signal on the waterfall on those radios.? I have also gotten a report back from another Ham who said there was to much RFI(noise) that he could hear me but it was so noisy.? When I key the mic in SSB the signal(on my other radios looks good but when I apply any audio the signal spreads out across both sides of the carrier(which isn't there for SSB) but looks almost the same as transmitting on AM.? Which again when I switch over to transmit in AM it sounds good.? The distortion sounds (I know not technical) like when you are tuning in a signal and you go from the high pitch past the good signal to the lower pitch.? I have run it through a manual tuner Drake RC-4 and through an automatic antenna tuner.? It is also the same if I run it into a dummy load or into an antenna.? I have read through the manuals and have watched some videos on YouTube and seem to be doing everything correctly.? ?Again, I'm hoping it is something simple that I'm missing.? Thanks for the help.
Mark??
On Mon, Feb 19, 2024 at 7:34?PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: Mark, when you say you're distorted on SSB, is that your monitoring on another receiver or are others saying that your signal sounds distorted?
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, February 19th, 2024 at 6:38 PM, Mark KF0KZP < fleischtpnl@...> wrote:
I am new to collecting Drake radios but so far love the radios.? I have a R-4C & T-4xc(combo) and I also have a TR-4.? I am having the same issues with both so I am obviously doing something wrong.? Receiving is working fine on the C-Line and the TR-4.? I can also tune both of them as per manuals.? They are both putting out power on all bands.? CW seems to work fine and AM is clear when transmitting but on both when on SSB the signal is distorted and a lot of RFI.? I have tried the Heil AD-1-C with the Pro-7 Headphones and also a Shure SM7B microphone.? Then I talked to one of the engineers at Heil and I purchased the CC-1-C cable and the Gold Elite Vintage microphone and have the same issues.? What am I missing and where should I start?? Thanks for the help and look forward to hearing some things I should try.
Mark
KF0KZP
--
Mark "Fleisch" Fleischer KF?KZP 
Public Address Announcer/Voice Over/Production Specialist:?
,?,?, ,?,?,?(Superior), and?(Proctor)
-- Mark "Fleisch" Fleischer KF?KZP
Public Address Announcer/Voice Over/Production Specialist:?
,?,?, ,?,?,?(Superior), and?(Proctor)
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Joel, I would look again for the pot. All R4B's have it. Even the earlier R4A and R4's. The procedure you want to follow is paragraph 6.4.9 then look at Figure 13 and you will see at the bottom the RCV SENS Good luck, Mark, WB0IQK 
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Both.? I have listened on a couple different radios I have and have seen the signal on the waterfall on those radios.? I have also gotten a report back from another Ham who said there was to much RFI(noise) that he could hear me but it was so noisy.? When I key the mic in SSB the signal(on my other radios looks good but when I apply any audio the signal spreads out across both sides of the carrier(which isn't there for SSB) but looks almost the same as transmitting on AM.? Which again when I switch over to transmit in AM it sounds good.? The distortion sounds (I know not technical) like when you are tuning in a signal and you go from the high pitch past the good signal to the lower pitch.? I have run it through a manual tuner Drake RC-4 and through an automatic antenna tuner.? It is also the same if I run it into a dummy load or into an antenna.? I have read through the manuals and have watched some videos on YouTube and seem to be doing everything correctly.? ?Again, I'm hoping it is something simple that I'm missing.? Thanks for the help.
Mark??
On Mon, Feb 19, 2024 at 7:34?PM Steve Wedge, W1ES/4 via <w1es= [email protected]> wrote: Mark, when you say you're distorted on SSB, is that your monitoring on another receiver or are others saying that your signal sounds distorted?
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, February 19th, 2024 at 6:38 PM, Mark KF0KZP < fleischtpnl@...> wrote:
I am new to collecting Drake radios but so far love the radios.? I have a R-4C & T-4xc(combo) and I also have a TR-4.? I am having the same issues with both so I am obviously doing something wrong.? Receiving is working fine on the C-Line and the TR-4.? I can also tune both of them as per manuals.? They are both putting out power on all bands.? CW seems to work fine and AM is clear when transmitting but on both when on SSB the signal is distorted and a lot of RFI.? I have tried the Heil AD-1-C with the Pro-7 Headphones and also a Shure SM7B microphone.? Then I talked to one of the engineers at Heil and I purchased the CC-1-C cable and the Gold Elite Vintage microphone and have the same issues.? What am I missing and where should I start?? Thanks for the help and look forward to hearing some things I should try.
Mark
KF0KZP
-- Mark "Fleisch" Fleischer KF?KZP
Public Address Announcer/Voice Over/Production Specialist:?
,?,?, ,?,?,?(Superior), and?(Proctor)
|
I bought a restorable 2B with 2AC off Craigslist last year from a fellow ham in Florida for $50 plus shipping.? It did not require any unusual work to get it going.? I replaced a couple of weak tubes, replaced all of the electrolytic caps, touched up the alignment, replaced the missing 100 KHz calibrator crystal, and installed a 3-wire line cord for safety.? That was all it took to make it work right.? While I had it on the bench, I removed the front panel, cleaned it with soap and water, then used a mild automotive polishing compound to remove paint oxidation and bring up the shine.? I have since added crystals for 30 meters and the "A" segment of 10 meters using the little HC-49 crystals installed in HC-6 holders.? When I received the 2B the only original Drake knob it had was the FREQUENCY knob.? The rest were old generic knobs out of someone's junkbox.? I installed a matching set of modern aluminum knobs purchased off eBay.? They don't look "right" but they don't look bad, and they'll do until I can find the correct knobs.?  73, Dean K5DH
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Hi
I would suggest to purchase the CDs from K0OAH. These are invaluable if you work on these machines. These, plus the circuit diagram will provide you the answer.?
k4oah@...
I could open my TR4C to make some pictures, but that wil be tomorrow earliest
73 Rob
Verstuurd vanaf mijn iPhone
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Op 20 feb 2024 om 13:10 heeft Electronica valvulas <Clubyaesu@...> het volgende geschreven: ?Thanks for your response, where is that 11vdc point? I can't find it. thanks, again
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Re: R-4B: Garbled Audio on 40m
Holy cow! ?Was the one I sold you?
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
On Mon, Feb 19, 2024 at 22:28, Gary WB6OGD < winbladgary@...> wrote: Adjusting the coils is fairly easy.. unless..? someone has been there before.
I had a 2B that was so mis-adjusted that I had to take it apart and adjust them to all be close to the same length first.
You might be able to see that the ends are the same length.? Mine were damaged and bent so I couldn't just do that.
73,
Gary
WB6OGD
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Thanks for your response, where is that 11vdc point? I can't find it. thanks, again
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Hi
Coincidentally I replaced the PTO of my R-4C yesterday. The red-white wire from the PTO is for the +11 Volt supply of the PTO.?
73 Rob Verstuurd vanaf mijn iPhone
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Op 20 feb 2024 om 12:19 heeft Electronica valvulas <Clubyaesu@...> het volgende geschreven: ?Hello, I am restoring a tr4cw, with some problems, at some point they made a modification to install a dds, I have noticed that there is a loose white/red cable that comes from the pto, I can't see where it was connected. Could someone tell me the connection location with any image? thank you
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Hello, I am restoring a tr4cw, with some problems, at some point they made a modification to install a dds, I have noticed that there is a loose white/red cable that comes from the pto, I can't see where it was connected. Could someone tell me the connection location with any image? thank you
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Re: RV-75 only decrements
Check Optical Interrupter Bias, section 5-5.4, and Optical Interrupter Mechanical Adjustment 5-5.d. Note that a mechanical VTVM or VOM is specified for alignments. If all that is good check the direction logic, 5-5.7. 73, -Jim NU0C On Mon, 19 Feb 2024 21:36:43 -0800 "K6OXN Bob" <bobk6oxn@...> wrote: The RV-75 I am working on, only decrements it will not increment. Either way I turn it, it only goes down in freq. Any clues are most helpful.
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The RV-75 I am working on, only decrements it will not increment. Either way I turn it, it only goes down in freq. Any clues are most helpful.
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No worries. 73 -Jim NU0C On Mon, 19 Feb 2024 21:44:52 -0500 "Joseph K4JNG" <jgraif1@...> wrote: And if I had bothered to look before "spouting"...well, you know the rest. Jim, I was just messing around but should have been more circumspect. Apologies¡
joseph n. graif
k4jng
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Shorney
Sent: Monday, February 19, 2024 9:34 PM
To: [email protected]
Subject: Re: [DRAKE-RADIO] RV-75 documentation
That's why I put your call in the file name. The "Bob" was just a mistake from reading the email thread too quickly. Corrected.
73
-Jim
NU0C
On Mon, 19 Feb 2024 20:50:30 -0500
"Joseph K4JNG" < <mailto:jgraif1@...> jgraif1@...> wrote:
Nice work, Jim, but they were my photos...just sayin' joseph n. graif k4jng -----Original Message----- From: <mailto:[email protected]> [email protected] < <mailto:[email protected]> [email protected]> On Behalf Of Jim Shorney Sent: Monday, February 19, 2024 6:48 PM To: <mailto:[email protected]> [email protected] Subject: Re: [DRAKE-RADIO] RV-75 documentation And here are Bob's photos converted to grayscale, cropped and de-noised to the extent that I wanted to go to in a few minutes with Irfanview and Paint. I did not try to correct the distortions induced by the page folds. That's Jedi level stuff that I have not learned yet. 73 -Jim NU0C On Mon, 19 Feb 2024 12:55:03 -0500 "Joseph K4JNG" < < <mailto:jgraif1@...> mailto:jgraif1@...> <mailto:jgraif1@...> jgraif1@...> wrote: Bob:
I went ahead and took the pics. They ¡°zoom¡± quite nicely. Let me know if this works for you.
73,
joe
joseph n. graif
k4jng
From: < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> [email protected] < < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> [email protected]> On Behalf Of Joseph K4JNG via groups.io
Sent: Monday, February 19, 2024 12:47 PM
To: < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> [email protected]
Subject: Re: [DRAKE-RADIO] RV-75 documentation
Bob:
I have the manual with the folded-up schematic in the pocket on the inside back cover. I don¡¯t have a large format copier but I can try taking pics. Or I could do overlapping scans. Thoughts?
73,
joe
joseph n. graif
k4jng
From: < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> [email protected] < < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> mailto:[email protected]> < < <mailto:[email protected]%20%3cmailto:[email protected]> mailto:[email protected]%20%3cmailto:[email protected]> <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]> > On Behalf Of K6OXN Bob
Sent: Monday, February 19, 2024 12:39 PM
To: < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> [email protected] < < <mailto:[email protected]> mailto:[email protected]> <mailto:[email protected]> mailto:[email protected]>
Subject: [DRAKE-RADIO] RV-75 documentation
Does anyone have a source for a good quality copy of the RV-75 schematics and the component layouts for the boards. I got some but the quality is poor and hard to read. I am trying to resurrect a RV-75 but need some more information. Thanks in advance.
-- 73 -Jim NU0C
|
Re: R-4B: Garbled Audio on 40m
Adjusting the coils is fairly easy.. unless..? someone has been there before.
I had a 2B that was so mis-adjusted that I had to take it apart and adjust them to all be close to the same length first.
You might be able to see that the ends are the same length.? Mine were damaged and bent so I couldn't just do that.
73,
Gary
WB6OGD
|
Thanks for the reply, and good idea about the 3D printing.?
I've made an offer to the seller... don't know if it will be accepted or not.? If it is, I'll probably need lots of help getting it back in shape!
73, Jim W4QE
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And if I had bothered to look before "spouting"...well, you know the rest. Jim, I was just messing around but should have been more circumspect. Apologies¡ ? joseph n. graif k4jng ?
toggle quoted message
Show quoted text
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Shorney
Sent: Monday, February 19, 2024 9:34 PM
To: [email protected]
Subject: Re: [DRAKE-RADIO] RV-75 documentation ? ? That's why I put your call in the file name. The "Bob" was just a mistake from reading the email thread too quickly. Corrected. ? 73 ? -Jim NU0C ? On Mon, 19 Feb 2024 20:50:30 -0500 "Joseph K4JNG" <jgraif1@...> wrote: ? > Nice work, Jim, but they were my photos...just sayin' > >? > > joseph n. graif > > k4jng > >? > > -----Original Message----- > From: [email protected] <[email protected]> On Behalf Of Jim Shorney > Sent: Monday, February 19, 2024 6:48 PM > To: [email protected] > Subject: Re: [DRAKE-RADIO] RV-75 documentation > >? > >? > > And here are Bob's photos converted to grayscale, cropped and de-noised to the extent that I wanted to go to in a few minutes with Irfanview and Paint. I did not try to correct the distortions induced by the page folds. That's Jedi level stuff that I have not learned yet. > >? > > 73 > >? > > -Jim > > NU0C > >? > > On Mon, 19 Feb 2024 12:55:03 -0500 > > "Joseph K4JNG" < <mailto:jgraif1@...> jgraif1@...> wrote: > >? > > > Bob:? > > >?? > > >??? > > >?? > > >??????????? I went ahead and took the pics. They ¡°zoom¡± quite nicely. Let me know if this works for you.? > > >?? > > >??? > > >?? > > > 73,? > > >?? > > > joe? > > >?? > > >??? > > >?? > > > joseph n. graif? > > >?? > > > k4jng? > > >?? > > >??? > > >?? > > > From:? <mailto:[email protected]> [email protected] < <mailto:[email protected]> [email protected]> On Behalf Of Joseph K4JNG via groups.io? > > > Sent: Monday, February 19, 2024 12:47 PM? > > > To:? <mailto:[email protected]> [email protected]? > > > Subject: Re: [DRAKE-RADIO] RV-75 documentation? > > >?? > > >??? > > >?? > > > Bob:? > > >?? > > >??? > > >?? > > >??????????? I have the manual with the folded-up schematic in the pocket on the inside back cover. I don¡¯t have a large format copier but I can try taking pics. Or I could do overlapping scans. Thoughts?? > > >?? > > >??? > > >?? > > > 73,? > > >?? > > > joe? > > >?? > > >??? > > >?? > > > joseph n. graif? > > >?? > > > k4jng? > > >?? > > >??? > > >?? > > > From:? <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>? < <mailto:[email protected]%20%3cmailto:[email protected]> [email protected] <mailto:[email protected]> > On Behalf Of K6OXN Bob? > > > Sent: Monday, February 19, 2024 12:39 PM? > > > To:? <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>?? > > > Subject: [DRAKE-RADIO] RV-75 documentation? > > >?? > > >??? > > >?? > > > Does anyone have a source for a good quality copy of the RV-75 schematics and the component layouts for the boards. I got some but the quality is poor and hard to read.? I am trying to resurrect a RV-75 but need some more information.? Thanks in advance.?? > > >?? > > >?? > > >?? > > >?? > > >?? > > >?? > > >?? > > >?? > >? > >? > >? > ? ? ? -- ? 73 ? -Jim NU0C ? ? ? ?
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That's why I put your call in the file name. The "Bob" was just a mistake from reading the email thread too quickly. Corrected. 73 -Jim NU0C On Mon, 19 Feb 2024 20:50:30 -0500 "Joseph K4JNG" <jgraif1@...> wrote: Nice work, Jim, but they were my photos...just sayin'
joseph n. graif
k4jng
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Shorney
Sent: Monday, February 19, 2024 6:48 PM
To: [email protected]
Subject: Re: [DRAKE-RADIO] RV-75 documentation
And here are Bob's photos converted to grayscale, cropped and de-noised to the extent that I wanted to go to in a few minutes with Irfanview and Paint. I did not try to correct the distortions induced by the page folds. That's Jedi level stuff that I have not learned yet.
73
-Jim
NU0C
On Mon, 19 Feb 2024 12:55:03 -0500
"Joseph K4JNG" < <mailto:jgraif1@...> jgraif1@...> wrote:
Bob: I went ahead and took the pics. They ¡°zoom¡± quite nicely. Let me know if this works for you. 73, joe joseph n. graif k4jng From: <mailto:[email protected]> [email protected] < <mailto:[email protected]> [email protected]> On Behalf Of Joseph K4JNG via groups.io Sent: Monday, February 19, 2024 12:47 PM To: <mailto:[email protected]> [email protected] Subject: Re: [DRAKE-RADIO] RV-75 documentation Bob: I have the manual with the folded-up schematic in the pocket on the inside back cover. I don¡¯t have a large format copier but I can try taking pics. Or I could do overlapping scans. Thoughts? 73, joe joseph n. graif k4jng From: <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]> < <mailto:[email protected]%20%3cmailto:[email protected]> [email protected] <mailto:[email protected]> > On Behalf Of K6OXN Bob Sent: Monday, February 19, 2024 12:39 PM To: <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]> Subject: [DRAKE-RADIO] RV-75 documentation Does anyone have a source for a good quality copy of the RV-75 schematics and the component layouts for the boards. I got some but the quality is poor and hard to read. I am trying to resurrect a RV-75 but need some more information. Thanks in advance.
-- 73 -Jim NU0C
|
Nice work, Jim, but they were my photos...just sayin' ? joseph n. graif k4jng ?
toggle quoted message
Show quoted text
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Shorney
Sent: Monday, February 19, 2024 6:48 PM
To: [email protected]
Subject: Re: [DRAKE-RADIO] RV-75 documentation ? ? And here are Bob's photos converted to grayscale, cropped and de-noised to the extent that I wanted to go to in a few minutes with Irfanview and Paint. I did not try to correct the distortions induced by the page folds. That's Jedi level stuff that I have not learned yet. ? 73 ? -Jim NU0C ? On Mon, 19 Feb 2024 12:55:03 -0500 "Joseph K4JNG" <jgraif1@...> wrote: ? > Bob: > >? > >??????????? I went ahead and took the pics. They ¡°zoom¡± quite nicely. Let me know if this works for you. > >? > > 73, > > joe > >? > > joseph n. graif > > k4jng > >? > > From: [email protected] <[email protected]> On Behalf Of Joseph K4JNG via groups.io > Sent: Monday, February 19, 2024 12:47 PM > To: [email protected] > Subject: Re: [DRAKE-RADIO] RV-75 documentation > >? > > Bob: > >? > >??????????? I have the manual with the folded-up schematic in the pocket on the inside back cover. I don¡¯t have a large format copier but I can try taking pics. Or I could do overlapping scans. Thoughts? > >? > > 73, > > joe > >? > > joseph n. graif > > k4jng > >? > > From: [email protected] <mailto:[email protected]>? <[email protected] <mailto:[email protected]> > On Behalf Of K6OXN Bob > Sent: Monday, February 19, 2024 12:39 PM > To: [email protected] <mailto:[email protected]> > Subject: [DRAKE-RADIO] RV-75 documentation > >? > > Does anyone have a source for a good quality copy of the RV-75 schematics and the component layouts for the boards. I got some but the quality is poor and hard to read.? I am trying to resurrect a RV-75 but need some more information.? Thanks in advance. > > > > > > > > ? ? ? -- ? 73 ? -Jim NU0C ? ? ? ?
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Gary WB6OGD
Rob PA9Z
Jim Shorney
