Tone clarifier

Recently I got this item which I never have seen before.

It is a bakelite case with the inscription tone-clarifier and IDEAL prov.pat. There are two pairs of connectors - male and female, connected with each other. In between is a 7-positions selector.

Inside, in parallel with the connectors is a capacitor-column with taps at 0-2-4-6-8-10-12 nF, chosen by the selector.

I presume that this device has been used with the vintage receivers without built-in speaker to modify the tone. If connected between the receiver output and the speaker or earphones, it cuts off the higher frequencies and so modifies the tone. Cut-off frequency is chosen by the selector.

I would greatly appreciate any information, such as the manufacturer, year of production, etc.

To thank the Author because you find the post helpful or well done.

Here you can see the german version: Tonveredler

To thank the Author because you find the post helpful or well done.

Thank you Otmar. I shall add my version to it.

To thank the Author because you find the post helpful or well done.

Hi Dejan

I have a Atwater Kent model 46 year 1929, tuner radio frequency.

It has a tone clarifier in the speaker's cable. The tone clarifier is bakelite case and has only 2 two positions, high and low. Has no brand or model.

That's all I know to help you.

Daltro D'Arisbo

www museudoradio.com

To thank the Author because you find the post helpful or well done.

Thanks,

It looks like many manufacturers applied the same principle and have made their own models.

Regards,

Dejan

To thank the Author because you find the post helpful or well done.