开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
Much improved tuning resolution, mechnical mod
The FRG7 has around 12 turns of the tuning knob to cover a 1 meg band segment, pretty fast, requiring the finesse of? safe crackers hands to tune in that ssb station, especially when the machine hs
By Pentagrid · #325 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
Here is a simple realignment method requiring few test equipments. https://worldradiohistory.com/UK/Short-Wave-UK/80s/SWM-1981-10.pdf
By Pentagrid · #324 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
Thanks again everyone for the responses. I do not own an oscilloscope, been meaning to get one for some time now. I think that is the only way I can get further diagnosing, as I am not used to
By dentycamera@... · #323 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
NEVER? get? a hot air gun near these old circuit boards. These boards are very poor quality by modern standards and the tracks will be damaged very easily.. L101 is the low frequency RF tuned
By Pentagrid · #322 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
I suspect cracked solder joints based on age and the works sometimes. Clean and flux the board, reflow with a hot air gun and I'll bet it's fixed. Then yuo can proceed with the alignment
By Reginald Beardsley · #321 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
Thank you Pentagrid for your quick reply. I think you might be onto something. The set functions very rarely I've only gotten it 3-4 times out of dozens of tries. I'll talk more in depth now about
By dentycamera@... · #320 ·
Re: Newly acquired FRG7 Loop light stuck on/loop not locking
My first guess is the loop section is randomly going into oscillation. Is there any sign the previous owner has "adjusted" any of the tuning coils?? Next time the light wont extinguish, carefully try
By Pentagrid · #319 ·
Newly acquired FRG7 Loop light stuck on/loop not locking
Hello Everyone, I just acquired a broken FRG-7. I bought it untested for a decent price. After it arrived I tested it and confirmed my suspicions that the unit was not functioning. It appeared to
By dentycamera@... · #318 ·
Re: Digital readout
Search on eBay: Yaesu FRG-7 kit for digital frequency and S-meter readout [email protected]> wrote:
By Paolo Binotti · #317 ·
Re: Digital readout
Seller is 17radioman [email protected]> wrote:
By Paolo Binotti · #316 ·
Re: Digital readout
Pentagrid, thank you for your nice idea. I will have a look at it. That would be a nice upgrade for version 2.0. I'm also busy making the readout complete wireless, using 2 times the ESP8266 or ESP32.
By Marcel, de PA8MA · #315 ·
Re: Digital readout
Hello Ted, Someone else posted the link already. Thank you for that. I’ve checked it on ebay.co.uk and there you can find it. So yes, I do ship it worldwide. UK should not be any problem.
By Marcel, de PA8MA · #314 ·
Re: Digital readout
Hello Marcel, This looks great. I'm very interested, so please would you be so kind as to post the eBay link or item number so I can see it? Also, do you ship to the UK? I did a Worldwide search
By Dem Ed Swain · #313 ·
Re: Digital readout
On 2023-11-13 13:23, Marcel, de PA8MA wrote: Hello, A few months ago, I've started to make a digital readout for this beautiful radio. After a few new versions,
By Arie de Muijnck · #312 ·
Re: Digital readout
A very good project Marcel.. Just a suggestion, all the aftermarket add on readouts seem to ignore the megacycle frequency part, when this is very easy to? include. The Mcs counter only needs a
By Pentagrid · #311 ·
Re: Digital readout
Hello, A few months ago, I've started to make a digital readout for this beautiful radio. After a few new versions, it's ready. Because several people asked me for it, I've made a complete kit,
By Marcel, de PA8MA · #310 ·
A network of 3D printer owners the print replacement knobs?
Hello all, As some of you might know, I have designed 3D printable replacement knobs for the FRG-7 switches and have them available through my website ( https://ph2lb.nl/webshop/order.php ) . I
By Lex PH2LB · #309 ·
Re: FRG-7 Current draw using an external 12V PSU
Well the manual says it draws 14VA at 120vac. So to translate that to 12vdc current draw would be:?So 14va*.7 ( .7 is the typ power factor of a std offline ps) = 9.8W of real power. So I = p/v, 9.8/
By Robert O'donnell · #308 ·
Re: FRG-7 Current draw using an external 12V PSU
Hi Guy! Many thanks! 73's / Hans fre. 10. nov. 2023 kl. 21:32 skrev G. Marchal <guy.on5fm@...>:
By Hans Ostnell · #307 ·
Re: FRG-7 Current draw using an external 12V PSU
Hello Hans, Don't worry, the needed current by the Frog is less than 500 mA. I don't use the internal PS of mine since a long time but an external 13.8 V one and I don't need anymore to put the
By G. Marchal · #306 ·