That is not the original knob

Hi,

Can anybody tell if this Sommerkamp FRG-7 tuning knob is an original design for this receiver? I don't see any pictures on the internet with this kind of tuning knob.

Tnx!

73 Wilbert

That add on is an NFM demodulator, this radio has been used as a tuneable IF for VHF convertors..

My upgraded FRG7,?

Ed Shaw was a well known DXer in the 70s and 80s and had a column in NASWA
I found a column in which he described the mods he did on his FRG7
I put it in the mods folder, check it out

MikeM <mmaghakian@...> added folder /7 - FRG-7 Mods/Mods from Ed Shaw

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The following files and folders have been uploaded to the Files area of the [email protected] group.

• /7 - FRG-7 Mods/Mods from Ed Shaw/24FFFAC9-8663-45D7-B3B0-9900C62CA83A.png

By: MikeM <mmaghakian@...>

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The following files and folders have been uploaded to the Files area of the [email protected] group.

• /7 - FRG-7 Mods/Mods from Ed Shaw/FRENDX-1982-11-OCR-Page-0013.pdf

By: MikeM <mmaghakian@...>

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The following files and folders have been deleted from the Files area of the [email protected] group.

• /7 - FRG-7 Mods/Mods from Ed Shaw/Ed Shaw mods

By: MikeM <mmaghakian@...>

If memory serves me correctly it was to deal with microphonics

Fellow Frogers,

? Just picked up a new-to-me FRG-7 and noticed what seemed to be an unkown mod consisting of a DPDT slide switch (S-7) w/ two? resistors (R-18 & 19), connected to the internal speaker.

But surprise, some of the schematics show these components in the lower right near the speaker.? However, they are not on the parts list, nor are they mentioned in operating / calibration instructions or circuit description.? There are no related labels on chassis or cabinet.

The switch is physically attached to a frame brace in the upper right rear of the chassis, just below the white battery plug/socket.? Switch is poorly positioned and clearly not intended to be accesssed often or easily.?

The resistors are either switched out of circuit, or placed in series w/ speaker: one between audio & speaker, the other between speaker & chassis gnd.

The only in-circuit effect seems to be some lowering of the volume.

Serial # 300585 and apparently this radio lived in Canada at some point.

Any idea what this undocumented "feature"? is about?

Hi Andrew, The FL-101 transmitter looks very similar to the FRG-7. But when the FL-101 is used with the FR-101 the pair will work in transceive mode after the interconnecting cables are attached.
73 Roger VE7LB

I am looking for an aftermarket speaker replacement for the main speaker on the FRG-7. Has anyone had success with finding one?

Thanks, Lex, for that 3D-printed knob design. I was lucky enough to find an original knob on eBay. Also, thank Cesar for your reply. This is one neat radio. I am researching a suitable AM transmitter to get more out of the one AM channel. I might consider building one from scratch and looking into a loop antenna for the USB and LSB. Does anyone know if this receiver had a transmitter that went with it, like the FT-101 FR-101? Or was this just a stand-alone unit?

The knobs of the first model FT-101? look like the on a FRG-7.

But the knobs you are pointing to in the e-bay link are from the newer models of the FT-101 (E, ET, Z, MD etc) and look like the one's used on a FRG-7700.

Looking at the prices on e-bay for original knobs, scared the hell out of me.?
--

73 Lex PH2LB?

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Read that ft 101 is the same. Found this:

Hello Andrew,

These are very hard to come by. I had the same problem and often 3D print parts, I designed my own (as close as to the orginal as possible).?

?

So when you access to a 3D printer (of not ask, friends, family, you local community center) you can print your own.
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73 Lex PH2LB?

Wondering if anyone has the main tuning knob they would be willing to sell?


Andrew

I should have mentioned my goal is to replace the kHz drum with a 3 digit display

I used some of these many years ago and they were awesome deals
unfortunately they are discontinued


https://www.pongrance.com/

Thanks but my budget is around $20

Hi Paolo,
?Thanks for the display info. I copied your pdf's over to the files section and added translated english versions as well:? /g/Yaesu-FRG-7/files/6%20-%20FRG-7%20with%20non%20GAR-7%20Digital%20Readouts/Paolo%20Viappiani%20Display? .

73
Roger VE7LB Group Owner