Re: Very Nice RV4C Arrived and is now working
Thanks, Peter, for a great memory. For whatever reason, I always found the transverters to be the coolest things. Today, I am still searching for a desk with a sloped section at the back. Any ideas
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Joseph K4JNG
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#74743
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Re: TR7 low band TX oscillation
Guten Tag, Dieter:
By ¡°relay box¡±, do you mean a remote power switch?
Danke Ihnen und 73,
joe
joseph n. graif
k4jng
Sent: Tuesday, November 28, 2023 7:55 AM
To:
By
Joseph K4JNG
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#74742
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Re: TR7 low band TX oscillation
Hi Patrick,
The culprit is the PS7 connector which brings mains voltage in your radio including hum you won¡¯t get rid of.
So it is not the PSU itself that brings the hum in your radio.
I use a
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Dieter Horst
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#74741
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Re: Very Nice RV4C Arrived and is now working
Please excuse newbie question, but what is a fiberglas pen ?
Tnx & 73, Jim W4QE
(TR7 awaiting time to get into it...)
By
Jim W4QE
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#74740
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Re: TR7 low band TX oscillation
Hi Jim,
After a lot of tests, PSU swaps, etc... I came to the conclusion that this TR7 is *VERY VERY* sensitive to any noise, AC spurs, hum that are present on the 13,5V supply voltage.
Even is
By
Patrick TK5EP
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#74739
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Re: Very Nice RV4C Arrived and is now working
Chuck:
I think a lot of us "of that vintage" remember the dreams we had of owning
a station like Ray's back in those days. That AES ad certainly affected me
for a very long time....still does
When
By
VE7PS
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#74738
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Re: S meter sticks
If you can get the meter case apart, you'll find a small screw that tensions the meter movement bearing.? Back that out 1/8 of a turn, tap the needle and see if that freed it up.? That worked 100%
By
Chuck Rippel - K8HU and ex - NMN
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#74737
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Very Nice RV4C Arrived and is now working
Picked up a very nice, cosmetically near-perfect RV4-C to go with the TR4CW-RIT; been wanting a nice one.? I expect it was cheap because it was unstable when tuned.
Easy fix.? Shoot the MODE switch
By
Chuck Rippel - K8HU and ex - NMN
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#74736
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Re: S meter sticks
Dryer sheets work great on static. a little rub on the meter and no more static
Marty
KL7AM
By
KL7AM
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#74735
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Re: S meter sticks
It could be a small bit of debris stuck inside the mechanism or it could be a bit of static buildup on the meter case. Static will usually dissipate after a while.
73
-Jim
NU0C
"K6OXN Bob"
By
Jim Shorney
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#74734
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Re: L-4B Blower Wheels
I think there will be an interest beyond this group. These amps are getting to the age where the plastic blower wheel will break sooner than later. Mine got wobbly last year but I already have a
By
Jim Shorney
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#74733
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L-4B Blower Wheels
Putting a feeler out to see if there is any interest in purchasing a spare blower wheel for your L-4B amplifier.? ?I have a found a source for an almost exact replacement for the cooling fan.?
By
NO8J MARK H HUBER
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#74732
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Re: DRAKE TECHNICAL NET UPDATE ( November 26, 2023 )
Mark,
Thanks for running the net yesterday. Band conditions were indeed very good.
I love running my TR3 due to its slightly wider bandwidth than most of the "newer" radios (hi hi). I find the same
By
Pete
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#74731
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Re: B-Line front panels
Thanks Charlie - message sent to your QRZ email.
The panels currently on the station aren¡¯t horrible, mainly some markings along the silver area at the very bottom of each panel. I picked these up
By
Shawn Morse
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#74730
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S meter sticks
Unusual problem. My S meter seems to stick around S1 until I key up and then it works fine for awhile. Have ran all the S meter adjustments and all checks out fine. Any ideas this TR7 is a late SN
By
K6OXN Bob
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#74729
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DRAKE TECHNICAL NET UPDATE ( November 26, 2023 )
Todays net we had 39 check-ins under excellent band conditions. Next week
will be Bill W9MXQ doing the net.
Here's the Drake equipment used to check-in today.
TWINS = 12
TR3 = 4
TR4(x) = 9
TR5 =
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M Gilger
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#74728
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Re: B-Line front panels
Here is the R4B.
By
JohnL
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#74727
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Re: B-Line front panels
I also saw one on eBay this morning.
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent from [Proton Mail](https://proton.me/mail/home) for iOS
By
Steve Wedge, W1ES/4
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#74726
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Re: B-Line front panels
Hi John,
How about a picture of the R4B?
Mike KE5YTV
By
Mike Bracey
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#74725
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Re: B-Line front panels
I have an R4B and T4XB panel available. ?Not 100%, see the pictures. ?$25/ea.
By
JohnL
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#74724
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Edited
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