The Tremoloes started as the backing group to singer Brian Poole and they were originally heavily influenced by Buddy Holly and The Crickets.
They recorded a dozen of singles for Decca during 1962-65 along with a couple of albums, with varying tracklistings in several countries.
The parted company with Poole in 1966 and switched to CBS records, where they had several big hits during 1966-1971.
They were never really were an albums band, but they did release 5-7 albums during 1967-1975, depending on how many you consider originals or compilations.
Alan Blakely: Vocals and keyboards
Alan Howard: Bass and vocals
Dave Munden: Drums and vocals
Rick West: Guitar and vocals
Len Hawkes: Bass and vocals. Replaced Howard in 1966
Brian Poole: Vocals until 1966