Yaesu-FRG-7@groups.io

Another 3D printed knob for the FRG-7 added to my collection.

Recently I got a question from a fellow ham if I have a replacement knob for the Fine-Tune. Unfortunatly I didn't but told them that I wanted to 3D design all the knobs of the FRG-7.

So during my holiday I started to work on the 3 knob of the FRG-7. The one which can be used for the Preselect, Mhz and the Volume.

My first prototype print (0.12mm / 100% infill) next to a original knob of my FRG-7.

I'm quite happy with the result and will continue working on the others. So when you need replacements knobs, stay tuned. Soon they will be ready and released on my website.??

--

73 Lex PH2LB?

Re: FRG-7 lock light problem

#203

I have noticed that the lock light in my FRG-7 dims with humidity. I doubt this is the problem that yitzimarks@... is observing, but I toss this observation in to see if anyone else has seen that issue and resolved it.

-- Gary KD1TE

FRG-8800 keypads

#202

Hi,
I hope it's not too off-topic to discuss the 8800 here as I can't find a dedicated group for this RX. Mine has problems with excessive contact bounce in the numeric keypad. What is the construction, is it membrane keypad or are there individual switches that can be cleaned?

Apart from this and the occasional PLL lock issue when it gets to warm, I'm happy with how it performs.

73
Nick

Re: FRG-7 lock light problem

#201

Hi, just go through the area with a soldering iron and reflow all the connections. The main components that control the Led are Q110 and Q111, plus the surrounding resistors and capacitors. I assume you have a schematic diagram.?

Show quoted text

On Thu, Aug 4, 2022 at 9:00 AM, yitzimarks@...
<yitzimarks@...> wrote:

Thanks for the explanation.?

Last night I tested the voltage at the joint of the led wire. It was 1.45v when the led was working (fist time starting the radio after letting it sit for a few hours) then it dropped slowly all the way to 0v.

I tried to trace the what the led is connected to on the circuit board but it got a little bit confusing.

If I post a high resolution picture of the circuit board, will you be able to spot a bad joint??

Re: FRG-7 lock light problem

#200

Thanks for the explanation.?

Last night I tested the voltage at the joint of the led wire. It was 1.45v when the led was working (fist time starting the radio after letting it sit for a few hours) then it dropped slowly all the way to 0v.

I tried to trace the what the led is connected to on the circuit board but it got a little bit confusing.

If I post a high resolution picture of the circuit board, will you be able to spot a bad joint??

Re: FRG-7 lock light problem

#199

It gets worse because when the radio is on it heats up. The bad joint opens because of Thermal expantion. It might not be the wire for the Led, it could be any of the transistors, resistors, etc associated with the Led operation.?

Bob

Show quoted text

On Thu, Aug 4, 2022 at 5:41 AM, yitzimarks@...
<yitzimarks@...> wrote:

But why would it get worse when the radio is on?
I checked all the joints, they look fine.?

Re: FRG-7 lock light problem

#198

But why would it get worse when the radio is on?
I checked all the joints, they look fine.?

Re: FRG-7 lock light problem

#197

Hi, sounds exactly like a bad solder joint. Probably at the pcb end. If your handy with a soldering iron, it should be an easy fix.? Hope this helps.?

Bob

Show quoted text

On Wed, Aug 3, 2022 at 8:03 PM, yitzimarks@...
<yitzimarks@...> wrote:

Hi there.?

My friend very kindly gave my his old FRG-7. It works really well and I love it!

It has one problem. The lock Led will not work, unless the radio was turned off and sitting for a few hours.?
Then, the led will work but only very dimly. The led will continue getting dimmer and after a few minutes it will simply stop working.?
The actual bulb is fine, I know this because when powering up the radio, it will light up for less than a second at full brightness.

It's a strange problem. It seems like as the radio warms, up the led stops working.?

Other than that, everything works fine!?

I will appreciate any help, and I thank you in advance.?

FRG-7 lock light problem

#196

Hi there.?

My friend very kindly gave my his old FRG-7. It works really well and I love it!

It has one problem. The lock Led will not work, unless the radio was turned off and sitting for a few hours.?
Then, the led will work but only very dimly. The led will continue getting dimmer and after a few minutes it will simply stop working.?
The actual bulb is fine, I know this because when powering up the radio, it will light up for less than a second at full brightness.

It's a strange problem. It seems like as the radio warms, up the led stops working.?

Other than that, everything works fine!?

I will appreciate any help, and I thank you in advance.?

Re: FRG-7 arrival

#195

Levers arrived today, so quick !
thanks so much !

Re: FRG-7 arrival

#194

I can send a set of levers for Euro 2,65 (send as letter).

Bigger parts (up to 350 gram) which fit in a letterbox package shipping will be Euro 11,50.
--

73 Lex PH2LB?

Re: FRG-7 arrival

#193

Yes, what is the cost including shipping to the USA for the red lever

thanks

Re: FRG-7 arrival

#192

When you want to work on your "Franken-frog", I do have "body parts" in stock to fix the monster ;-)?

I have a original volume knop and S-meter in stock.?

Fill this form and add to you comment field the parts you need.?

http://ph2lb.nl/webshop/order.php?

I will check my stock and let you know the prices incl shipping.

--

73 Lex PH2LB?

FRG-7 arrival

#189
Edited

well, my FRG-7 arrived today
poorly packed and the volume knob smashed
the power cord cut
the S-meter seems stuck
it does receive

there is only one possible use for me

the creation of FRANKEN-FROG !!!!!

Re: FRG 7 Switch supply

#188

Thanks, the FRG-7 I purchased still has not been shipped and I am waiting until I receive it before buying anything for it.

Mike

Re: FRG 7 Switch supply

#187

Mike, I have send you a private message, but maybe it's stuck in a spam filter.?

?

When you still need the knobs I can send you a set in a envelop.

Fill in my order request form :??and select "FRG-7 3D printed switch knobs" and International Letter for shipping.?
--

73 Lex PH2LB?

Re: FRG 7 Switch supply

#185

Washington state USA

Re: FRG 7 Switch supply

#184

Mike, where are you located ??
--

73 Lex PH2LB?

Re: FRG 7 Switch supply

#183

let me see what develops, thanks for the offer !

Re: FRG 7 Switch supply

KN6TXA Bob

#182

Sorry my 3d printer friend decided to leave Calif.? So I haven't found another.? I do have a Grey switch lever though if you can use it let me know.

73 Bob

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