I have recently accquired this item and it needs a restoration. Does anyone know the IF freq. this chassis uses? Next step is to sweep the IF for responses from 200 KHz to 480 KHz but thought I'd ask.

Thanks, Al

Doesn't seem to have an IF that I can see... seems to be a TRF.
Here's your schematic for The American Bosch 200:
http://www.nostalgiaair.org/PagesByModel/212/M0022212.pdf

:Doesn't seem to have an IF that I can see... seems to be a TRF.
:Here's your schematic for The American Bosch 200:
:http://www.nostalgiaair.org/PagesByModel/212/M0022212.pdf

Hello Peter. I think you may be correct! I will check the lineup again. I do not see an osc. tank either. Thanks for the suggestion!

Hi

Might be frequency in meters? That would be 625 to 1500 KC (KHz). To convert meters to KC divide into 300,000.

Norm

::Doesn't seem to have an IF that I can see... seems to be a TRF.
::Here's your schematic for The American Bosch 200:
::http://www.nostalgiaair.org/PagesByModel/212/M0022212.pdf
:
:Hello Peter. I think you may be correct! I will check the lineup again. I do not see an osc. tank either. Thanks for the suggestion!