The K129 is an Ether Conqueror in 'Regency' cabinet (I think). The suffix letters on the tuners do denote differing versions, but it's not unknown for them to differ amongst themselves!
For example, the T69A differs from the T69B by not having a whistle filter and the decoupling of the AF triode is by a 10uf electrolytic capacitor in the -A, but a 1uf paper capacitor in the -B.
For example, the T69A differs from the T69B by not having a whistle filter and the decoupling of the AF triode is by a 10uf electrolytic capacitor in the -A, but a 1uf paper capacitor in the -B.
