Replacement Heater Valve

[Dave Tietz <mgcats@ij.net>]

I'm getting tired of replacing my heater control valve in my MGB. Has
anyone replaced it with a reliable in-hose (1/2 inch) type - One that
could be inserted in the heater hose either going into or out of the
heater core?

I have seen conversions like that at car shows, but it would help if
anyone has a part number & manufacturer

Thanks,

Dave Tietz

'70 MGB
'94 Miata
'98 Camry