Re: TR-4C audio hum
This could also be a bad tube in that chain. I've heard of filaments touching the cathode that can cause this. Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies like a banana. Sent with
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Steve Wedge, W1ES/4
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#56457
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Re: 3 files uploaded
#file-notice
You mean the meters? I think so but they are not cheap. Although you can often find used ones that are close enough that they can be made to work on eBay. I accidentally found a spare plate current
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Jim Shorney
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#56456
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Re: TR-4C audio hum
Better to diagnose the problem first. You don't learn anything by shotgunning caps. :) 73 -Jim NU0C "Tony Deprato" <tony.deprato@...> wrote:
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Jim Shorney
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#56455
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Re: 3 files uploaded
#file-notice
Excellent! Jim - these are still available.. correct? PS
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VE7PS
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#56454
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Re: TR-4C audio hum
Replace the caps in the power supply and the can in the transmitter. Sent via the Samsung GALAXY S? 5, an AT&T 4G LTE smartphone
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Tony Deprato <tony.deprato@...>
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#56453
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Re: TR-4C audio hum
There's your clue. 80 and 20 do not use heterodyne premix crystals. Look around the pre mix / het osc V1 and the crystals. Check grounds, look for excessive ripple on the B+. 73 -Jim NU0C "Cowan
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Jim Shorney
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#56452
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TR-4C audio hum
Hello all. The rig has an audio hum that is heard on the speaker when switching to any band except 80 and 20 meters.? When 80 or 20 is selected the hum is not present.? I still can hear
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Cowan Bowman
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#56451
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Re: Meter hardware for MN-7?
MS2T for 4-line, MS3T for 7-line. 73 -Jim NU0C "VE7PS" <ve7ps@...> wrote:
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Jim Shorney
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#56450
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Re: Meter hardware for MN-7?
Jim - Yeah, I knew you'd offer a spec sheet!? I couldn't remember which meter it was they used....tough to look up when you don't know what it is. *But*...I think these were the meters used on the
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VE7PS
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#56449
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3 files uploaded
#file-notice
The following files have been uploaded to the Files area of the [email protected] group. * /Jewell/Jewell-MS-Series.pdf ( /g/DRAKE-RADIO/files/Jewell/Jewell-MS-Series.pdf ) *
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[email protected] Notification <noreply@...>
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#56448
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Re: Meter hardware for MN-7?
They have these things called spec sheets now y'know... ;) The attached clip from a Jewell cut sheet should be of help. I believe the 7-line meters are MS3Tx series. 73 -Jim NU0C "VE7PS"
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Jim Shorney
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#56447
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Re: Meter hardware for MN-7?
Larry: I've been working on a project for the W-4 and the WH-7 meters recently, and just happen to have a measurement here with me. The meter studs on the WH-7, which is the same as the MN-7 and
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VE7PS
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#56446
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Re: Wanted - Drake TR-4C S-meter
Doug, all the TR-3/TR-4 meters are interchangeable. Be aware that some of them have a problem with damping (frequently called ¡°bouncy¡± or ¡°bouncing¡±). Ask before you buy. 73, Steve Wedge,
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Steve Wedge, W1ES/4
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#56445
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Meter hardware for MN-7?
Does anyone know what size the nuts for the meter inputs on an MN-7 (or an MN-2700 too, I think) are? 73, Larry, NM7A
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Larry Gadallah
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#56444
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Re: Drake Transmitting Convertors
For one thing it probably would have been way too expensive for the price point of the rigs. Phase locked loops had been around decades before that but it was only cheap IC technology that brought
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Jim Shorney
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#56442
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Re: Drake Transmitting Convertors
Hi Gary, I have the Drake C-line twins as well as a Drake FS-4 synthesizer. The FS-4 is as stable as a rock regardless of temperature swings, so I know that Drake had the ability to build driftless
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Steve Beaman <beamanator@...>
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#56441
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Hamfest finds
Had our hamfest in Sevierville, Tn. today. Some Drake gear was there, couple of R4B, a TR-7. One guy had a TR-4CW that was rough and untested for $275 with the AC-4 and the MS-4. Same guy had a C-4 he
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Billy Pickering
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#56440
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Re: MN2000
Well, ended up picking up a Ten-Tec 4229 tuner at the hamfest today. Like Jim said in another post, functionality. It's a 2KW roller inductor tuner so hopefully the Drake will be on the air soon.
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Billy Pickering
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#56439
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Re: Drake Transmitting Convertors
Well should have been fogot. Rit.tit. duh Sent via the Samsung GALAXY S? 5, an AT&T 4G LTE smartphone
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Tony Deprato <tony.deprato@...>
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#56438
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Re: Drake Transmitting Convertors
You Fogel the new Q&A hams have no ideal what rit title tune load or null are for. You have to be on .000.or your off freq.73.Tony wa4jqs Sent via the Samsung GALAXY S? 5, an AT&T 4G LTE smartphone
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Tony Deprato <tony.deprato@...>
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#56437
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