Dc chopper is a static device which converts constant dc source to variable dc.
Well, yes. But it isn't much needed as DC is already DC.
A DC-to-DC converter is the general term for a device that changes DC voltage at one level to another.
dc to dc converter
dc
The Drifters was created in 1953.
Two Drifters was created in 2005.
The Drifters' Golden Hits was created in 1968.
The Drifters - Japanese band - was created in 1956.
Drifters - 2010 was released on: USA: 20 June 2010
The Drifters - 2012 was released on: USA: 14 August 2012
The Drifters - 1919 was released on: USA: 6 January 1919
The Drifters - 1922 was released on: USA: 3 September 1922
No, evidently The Drifters did not appear on The Tonight Show.
Rides - 2003 Drifters was released on: USA: 27 July 2004
Cliff Richard & The Drifters (Shadows)
some are