Get the tone
This is a general setting for solo work. For clean rhythm tones simply back off your guitar’s volume control. For a more authentic lead sound try adding a delay pedal in front of your amp (these work best as the last effect in the chain if you’re using several pedals). Keep the delay time and repeat controls low and the mix control at 50% to achieve a 50s slapback effect. There were very few effects available to guitarists in the mid-60s; analogue tape echo units were extremely popular and used by guitarists well into the 70s to ‘fatten up’ their solos.