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Lafayette ssb 25a question
- Thread starter Staybolt
- Start date
Crystal controlled 23-channel radio.
Has a lot of crystals. One set of six controls four channels per crystal. Removing one and substituting it will lose those four original channels to get you four new ones.
To expand it, the connection between those six crystals and the channel selector gets interrupted by a switch, with six sockets for added crystals. Still only gets you 23 new channels from six new crystals. And eighteen wires.
Trickiest part is getting the right crystals, and then getting them to run on the right frequency.
Not particularly cost effective compared to more-modern radios with PLL frequency synthesizers.
73
Has a lot of crystals. One set of six controls four channels per crystal. Removing one and substituting it will lose those four original channels to get you four new ones.
To expand it, the connection between those six crystals and the channel selector gets interrupted by a switch, with six sockets for added crystals. Still only gets you 23 new channels from six new crystals. And eighteen wires.
Trickiest part is getting the right crystals, and then getting them to run on the right frequency.
Not particularly cost effective compared to more-modern radios with PLL frequency synthesizers.
73
