[TenTec] Jupiter power switch

[Winston]

I have a Jupiter with malfunctioning main power switching. I suspect a sticking relay. The main power switch always turns radio on, but often won’t turn it off. It may take several times flipping switch to off position to get it to turn off.
Does anybody have the relay part number? The manual only indicates a Potter and Brumfield T30 relay.
Is it better to replace relay or can it be cleaned?
73, Winston K4CWQ

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