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Old 9th Feb 2020, 7:30 am   #17
Aubade65
Tetrode
 
Join Date: May 2012
Location: Oxfordshire, UK.
Posts: 69
Default Re: Eddystone 730/4 BFO not working

If you are realigning the IFTs you may need to be remember that it will not be exactly 450K/cs but aligned to the crystal filter which will be several k/cs above or below - the same goes for the BFO.

If you only have a simple emetr then it should be possible to check the operation of the BFO by usinf a simple diode probe of a diode connected to a length of wire wrapped around the BFO valve with the other end of the diode connected to the meter shunted by a capacitor i.e. a simple diode detector
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