Often people put too powerfull fuse and amp is not protected. The CE 20/20/20 at 525VDC has better voltage rating than the OEM one.
Summary You might wonder how a 10kg, 6 watt combo amp without reverb (!
Leo Fender made it a habit of listening to musicians, and they told him they wanted amplifiers that sparkled more and that were less midrangey.
The changes first came with the “brownface” series of 1960-1963 and became more pronounced with the “blackface” series starting in 1964.
All resistor and capcitor values are the same between the two eras and the only practical difference is the regular blackface and silverface differences; cabinet baffle construction, chocolate drop caps, plastic insulated wires.
The start of a new decade The dawn of the 1960’s brought changes to the entire line of Fender’s guitar amplifiers.
I just bought this Vibro Champ: not sure about the correct dating method. ct-dating/Congrats on your "new amp." Vibro Champs are sweet sounding amps! A better method of dating your amplifier is to use the the serial number from the transformer. I'm sure some of the experts will be around soon to help. Your amp's tranny manufacturing dates are both 1966, 1st week (6601). Blackface era of VC's went from 1964 into 1967. ...
The Blackface Champ and Vibro Champ (with tremolo) was introduced in 1964 after its presuccessor, the narrow panel tweed Champ, had been produced nine long years at Fender since 1955.
The blackface model continued the 1×8″ combo design and the single ended 6V6 power amp, class A.
Additionally, with the rise of new musical styles, guitarists were demanding more effects from their amps.
The days of the single tone knob long gone, the amplifiers of the period started sporting on-board reverb chambers as well as the new vibrato circuit (sometimes since described as the “poor man’s chorus effect”).