This is the Gordon Gibby Outboard relay mod for the V3/V4 Ubitx radios.
Cost may seem a bit high but the relays and US supplier parts are not cheap at this moment.
Info below.
https://qsl.net/nf4rc/2018/OutboardRelaysDesignDocumentTry3.pdf
Parts for the voltage regulator are not included at this time.
Ubitx V3/V4 Outboard Relay mod.
- Product Code: URM
- Availability: 2
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$25.00