J.E. Sugden A48 Amplifier Service Manual

J.E. Sugden
A48 Amplifier
Service Manual

The Sugden A48 amplifier went through some changes and these booklets document the variants (mainly component changes).  I have labelled them Series 1 (early), Series 1 (late), Series 2 (MK2), Series 2 (MK3).  Please view the amendment sheets at the bottom of this page that affect serial numbers 0501 onwards, 1300 onwards and 4200 onwards.  Click the thumbnails to enlarge.

A48 Series 1 (early)
Sugden A48 Amplifier EarlySugden A48 Amplifier EarlySugden A48 Amplifier EarlySugden A48 Amplifier EarlySugden A48 Amplifier Early

A48 Series 1 (late)
Sugden A48 Amplifier LateSugden A48 Amplifier LateSugden A48 Amplifier LateSugden A48 Amplifier LateSugden A48 Amplifier LateA48 Series 2 Mk 2

Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2Sugden A48 Amplifier MK2

A48 Series 2 Mk 3

Sugden A48 Amplifier MK3Sugden A48 Amplifier MK3Sugden A48 Amplifier MK3Sugden A48 Amplifier MK3Sugden A48 Amplifier MK3Sugden A48 Amplifier MK3

Amendment (serial no. 0501 onwards)

amendment 0501

Amendment (serial no. 1300 onwards)
amendment 1300 onwardsAmendment (serial no. 4200 onwards)

Amendment 4200Amendment 4200Amendment 4200