[Boatanchors] [Heathkit] Heath schematics

[Jim Wiley]

The 3 leads from the relay were for switching an external device, such 
as a linear amplifier.  I think the function switch leads _may_ have 
been to control the AC power,. but I am not sure about that - it has 
been 40 years since I owned a SB-101.

- Jim, KL7CC

  

manualman at juno.com wrote:
> Very weird, since in the case of the SB-101, two leads from the function
> switch go directly to the 11 pin socket and three leads from the relay go
> directly to the socket. Are they just dead-ended in mid-air?
>
> Pete, wa2cwa
>   
>