30-12-2022, 07:34 PM
Hi Roger,
I gather that you originally posted a picture of the board that you have.
My recollection is that the earlier version had etched striplines for the BPF, whereas the later version used a helical filter. I have built both of these, but for the moment have attached some information on the stripline BPF version.
432 Transverter(layout)_s.jpg (Size: 301.31 KB / Downloads: 348)
432 Transverter_s.jpg (Size: 500.27 KB / Downloads: 358)
I know Graham was a big fan of the SNA586 MMIC so I feel sure that device would have been used in the Tx amplifier.
Can you please confirm which version you have ?
73
Rod VK4VU
I gather that you originally posted a picture of the board that you have.
My recollection is that the earlier version had etched striplines for the BPF, whereas the later version used a helical filter. I have built both of these, but for the moment have attached some information on the stripline BPF version.
432 Transverter(layout)_s.jpg (Size: 301.31 KB / Downloads: 348)
432 Transverter_s.jpg (Size: 500.27 KB / Downloads: 358)
I know Graham was a big fan of the SNA586 MMIC so I feel sure that device would have been used in the Tx amplifier.
Can you please confirm which version you have ?
73
Rod VK4VU