My FM converter for tube radios using the dial and tube amplifier

[david winter]

Originally Posted by Mr 1936

Hi David

I seem to be missing something here.

The TEA5767 is a Philips surface mount IC.

I can find a variety of small populated PCBs on sale that could be described as TEA5767 modules.

Have you used one of these commercial ones, and if so which one? Or is this a special/custom design ?

The FM converter comes as pictured in my initial message.

[Graham G3ZVT]

Originally Posted by Mr 1936

Hi David

I seem to be missing something here.

The TEA5767 is a Philips surface mount IC.

I can find a variety of small populated PCBs on sale that could be described as TEA5767 modules.

Have you used one of these commercial ones, and if so which one? Or is this a special/custom design ?

It's a custom design originally created by Eduard Hontelé and Daniel Maignan. under a GPL licence.

There is a description and schematic here. David's version appears not have the switching to restore normal AM operation, however I suspect that was quite difficult to implement on a given radio.

[maxhifi]

What is the approximate current draw of the module?

[david winter]

My module is indeed based on Hontele's initial concept.
What most people ignore is that I was first to suggest a module containing its own regulated power supply.
My module uses my own code, completely rewritten with some bugs removed and a much better tuning which removes undesirable audible "plops" in most cases.
The module draws 25mA or just under.

[david winter]

The moderators kindly accepted that I propose the module for sale in the Parts & Set section, where you will find the link to my site:

https://www.vintage-radio.net/forum/...d.php?t=185120

Price includes free worldwide registered shipping.

Thanks for your interest !

[agardiner]

Fab - thanks for making these available. I have just placed an order.

[murphyv310]

Hi
I've just placed an order for one to use in a Ferguson AC DC set with an irreparable FM tuner module. I'll be adding a small mains TX for its supply. My friend who owns the radio is over the moon it will work again and look just as it should, he doesn't use AM thankfully.

[maxhifi]

I've just ordered one. Now to design a shelf filter to append to the output, to make it compatible with the North American 75us time constant.

[david winter]

Thanks Will send tomorrow.
Updated instructions can be found here.
Please pay attention to the instructions that concern AC/DC sets.
Let us know how your radio sounds when you have it working !

[bobhowe]

Originally Posted by david winter

Thanks Will send tomorrow.
Updated instructions can be found here.
Please pay attention to the instructions that concern AC/DC sets.
Let us know how your radio sounds when you have it working !

Hi David thanks for the updated instructions (which I will follow ) just started a thread about a Bush DAC90A that I am doing for your FM converter will be playing safe I have ordered a static wrist band and I am going to power it up by a 9v PP3 battery for now kind regards Bob

[agardiner]

Originally Posted by bobhowe

Hi David thanks for the updated instructions (which I will follow ) just started a thread about a Bush DAC90A that I am doing for your FM converter will be playing safe I have ordered a static wrist band and I am going to power it up by a 9v PP3 battery for now kind regards Bob

Oooh. A DAC90 running on a PP3; now that would be a thing!

[Radiocruncher]

This sounds very interesting so I have purchased one to try out. It should make a great YouTube video. Nice work David

[david winter]

Originally Posted by bobhowe

Hi David thanks for the updated instructions (which I will follow ) just started a thread about a Bush DAC90A that I am doing for your FM converter will be playing safe I have ordered a static wrist band and I am going to power it up by a 9v PP3 battery for now kind regards Bob

That's great ! Can you add a link there for those who want to follow ?
All modules ordered yesterday and until noon today will ship today.
Note that the tracking takes time to become effective, and all modules are housed in an antistatic bag before packing and shipping.

Cheers

[Cobaltblue]

Bobs Thread can be found here:
https://www.vintage-radio.net/forum/...d.php?t=185211
Cheers
Mike T

[david winter]

For those interested, I realize I forgot to pose a photo showing the size of the board... !

[bobhowe]

David spoilt for choices of stations on my Bush DAC90A I am very pleased

[david winter]

Great
Would be so cool if you added a video there for those who might be interested.
I could link to it from my page if you want.

[bobhowe]

Hi David please PM your email address and I will send you a video as the forum won't let me load a video

[bobhowe]

Hi as per title would like to know what is the popular radio being used for this conversion

[bobhowe]

Originally Posted by bobhowe

Hi as per title would like to know what is the popular radio being used for this conversion

Moderators Please move the to a separate thread as people are not going to see the new title