British airliners - radio installations
Who were the preferred manufacturers, if any, for VHF and HF radio systems for 'golden age' British airliners ? For example, the Heron, Viscount, Britannia, Herald, HS748, VC10, Trident and 1-11. I have an idea that Marconi may have been the go-to for British 1-11 operators but not necessarily for American customers.
Thankyou.