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Re: TR7 low band TX oscillation
That is correct. I also run my R7 from external DC. It is much cooler. 73 -Jim NU0C "Joseph K4JNG" <jgraif1@...> wrote:
By Jim Shorney · #74763 ·
Re: TR7 low band TX oscillation
The DC connector on the back of the R7 is labeled ¡°In/Out¡±. I was planning on using it to power my CW75. So, does that mean if the AC cord is used, then the DC voltage is ¡°out¡± and if it is
By Joseph K4JNG · #74762 ·
Re: TR7 low band TX oscillation
Sicherlich nicht, my friend! This is about alternative ways to power the equipment Thank you, again¡­ 73, joe joseph n. graif k4jng Sent: Tuesday, November 28, 2023 4:25 PM To:
By Joseph K4JNG · #74761 ·
Re: TR7 low band TX oscillation
My guess is that Drake had to stick with the transformer designed for the space in the R7 despite the fact that the whole circuitry drew more current than anticipated... Buy
By Dieter Horst · #74760 ·
Re: TR7 low band TX oscillation
Thank you, Dieter! My R7 runs so hot that you cannot touch the chassis with the cover off. What¡¯s up with that? My TR7 doesn¡¯t even get warm!! 73, joe joseph n. graif k4jng Sent:
By Joseph K4JNG · #74759 ·
Re: TR7 low band TX oscillation
Hello Joe, my description of the relay box was a bit vague. It's what Jim mentioned: "A less drastic solution that I have considered is adding a low voltage circuit to the PS7 to
By Dieter Horst · #74758 ·
Re: TR7 low band TX oscillation
Thanks, Jim. You get a Schlitz for that! joseph n. graif k4jng
By Joseph K4JNG · #74757 ·
Re: TR7 low band TX oscillation
How does the power switching on the TR7 work? I have mine on an ordinary 30A switching supply, and the only connection is two big wires to the radio's Jones connector. Yet the little switch on the
By jerry-KF6VB · #74756 ·
Re: TR7 low band TX oscillation
No. The PS75 has the same mains routing as the PS7. The PS7 is more appropriate for the TR7 because of the higher current output rating. While the PS75 can be used with the TR7 it was more targeted
By Jim Shorney · #74755 ·
Re: TR7 low band TX oscillation
So¡­buying a PS7 to replace my PS75 was a mistake? joseph n. graif k4jng
By Joseph K4JNG · #74754 ·
Re: TR7 low band TX oscillation
This is a thing. Unfortunately not one of Drake's best ideas. I have seen at least one case where the owner added a toggle switch to the front of the PS7 and eliminated the mains feed through the
By Jim Shorney · #74753 ·
Re: TR7 low band TX oscillation
All ground connections should be checked. This includes screws, straps, springy copper, and soldered shields. The card cage covers need to be on and secured with ALL screws snug but not over tight or
By Jim Shorney · #74752 ·
Re: Very Nice RV4C Arrived and is now working
...and, unlike the Call Book... Pabst Brewing Company, now headquartered in Los Angeles, continues to produce Schlitz beer, Old Milwaukee, and four Schlitz malt liquors¡ªSchlitz Red Bull, Schlitz
By Joseph K4JNG · #74751 ·
Re: Very Nice RV4C Arrived and is now working
It says Radio Amateur Call Book.
By Clint VE3CMQ · #74750 ·
Re: Very Nice RV4C Arrived and is now working
n4buq writes: The manspreading just adds that appropriate touch of je ne sais quoi. Is that QST or Playboy that he's reading? The title has been tastefully pixellated away from tender
By Lyndon VE7TFX <lyndon@...> · #74749 ·
Re: Very Nice RV4C Arrived and is now working
Didn¡¯t look to see I was replying on the Board. Yes¡­a non-ham friend asked me if I put on a dress shirt and tie to talk on the radio¡­ The XYL says, ¡°Go get your own beer and be thankful
By Joseph K4JNG · #74748 ·
Re: Very Nice RV4C Arrived and is now working
"Oh, honey - I see you have on your white shirt and necktie. You must be going down to talk to other people besides me on your ham radio. Let me bring you a beer." Barry - N4BUQ
By n4buq · #74747 ·
Re: Very Nice RV4C Arrived and is now working
Peter: No worries. It¡¯s all good. As it is, it looks as if I am going to be searching quite a while for that second RV75. Anyway, the R7 still needs to go to the shop to get the
By Joseph K4JNG · #74746 ·
Re: Very Nice RV4C Arrived and is now working
Joseph: Package will go out today....got delayed yesterday as my truck was unexpectedly in the shop all day...read $$$$! The desk in Ray's ad is a Design Industries "Diplomat" model - see pic
By VE7PS · #74745 ·
Re: TR7 low band TX oscillation
Several months ago my TR7 started low band self- oscillations during antenna tuning and tripped the PS7. Found the problem was due to loose chassis screws over the years. I checked every single
By Kam VA6CA · #74744 ·