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samoca58 · 8th Nov 2018, 3:51 pm

The ceramic filter that I purchased comes with a matching If transformer. I purchased 10 of these and the IFt and the ceramic filter can be removed from the original case easily. For the 2nd IFt I just used another. In the Perdio the osc coil was originally feeding a 470khz If chain. It didn't present any problems feeding the 450khz filters. Just a slight tweak to align. The two IFt s are identical.

8th Nov 2018, 3:51 pm	#30
samoca58 Triode Join Date: Sep 2014 Location: Ringwood, Hampshire, UK. Posts: 29	Re: ZN414 and TA7642 radios The ceramic filter that I purchased comes with a matching If transformer. I purchased 10 of these and the IFt and the ceramic filter can be removed from the original case easily. For the 2nd IFt I just used another. In the Perdio the osc coil was originally feeding a 470khz If chain. It didn't present any problems feeding the 450khz filters. Just a slight tweak to align. The two IFt s are identical.