CHAMP ELECTRONICS -"THE VINTAGE VALVE AMP HOSPITAL"

NOTTINGHAM, ENGLAND

AMPLIFIER & ELECTRONIC EQUIPMENT CONSTRUCTION

 

The first amplifier re-designed and re-built in 1963 by John. His modifications resulted in a monster which produced 100 watts from 4 x EL34's !

 

John worked on the above amp back in 1963. A 100 watt amp which had been produced by one of the big-time manufacturers was quite something back in those days, let alone one coming off a 12 or 13 year old schoolboy's workbench!!  Following on from those days, John has designed and built many other amplifiers, most of which are in use to this day. In fact, occasionally a "Champ" amp is returned to John's workshop for a service.

The following items of equipment are examples of amplifiers and test equipment designed and built by John:

 

CLICK ON THE THUMBNAIL PICTURE FOR DETAILED DESCRIPTION & PHOTOS OF THE WORK

 

2011 CHAMP CBA-200/200 (8 x KT88) STEREO AMPLIFIER

 

'Doctor Valve' Bias Boy

THE 'DOCTOR VALVE' BIAS BOY

 

 

 CHAMP CBA-20807    PART 2 (January 2010)  

A currently ongoing project constructing a 1000 watt Amp using twenty ( Yes 20!) Type 807 Tubes. 

 

CHAMP CBA-20807      PART 1 (April 2009)

 

2007 KYRI/CHAMP COMBO AMPLIFIER - Helping an owner re-design and re-build his home-made amp.

 

1971 CHAMP 300 Watt AMPLIFIER HEAD - Utilising 8 x 6L6 Output Tubes.

 

2009 CHAMP TREBOOST PLUS STOMP BOX (Type 5) - And now a stomp box version of the original Treboost Plus unit; fitted with three switchable transistors!

 

2008 CHAMP TREBOOST PLUS - A treble boost unit based on the famous Dallas-Arbiter Rangemaster.

 

const11aa.jpg

c1975 CHAMP LB-100 TUBE AMP  - Discovered in a second hand shop after 33 years!

 

2007 CHAMP CBA-225 TUBE AMP - Eight Type 807 tubes providing 250 watts

 

2006 CHAMP 1000 WATT TUBE AMP PROTOTYPE - 1,000 watts of power from four Type 813 tubes

 

2006 CHAMP CBA-500 BASS GUITAR AMP PROTOTYPE - 500 watts of power from twelve EL36/6CM5/EL360 tubes

 

2006 CHAMP VALVE/TUBE HEATER WARMER

 

c1963 JOHN CHAMBERS' 100 WATT AMPLIFIER

 

c1970 CHAMP 30 WATT AMPLIFIER

 

c1992 CHAMP 3HMV 300 Watt POWER AMP 

 

THE CHAMP SERIES OF KT88 POWERED MONSTERS - 1971 to 1993

 

THE CHAMP DUMMY LOAD - In day-to-day operation on John's Workbench!

 

c1972 CHAMP 200-MP 200 Watt MULTIPURPOSE AMPLIFIER

 

 

 

 

Return to CHAMP ELECTRONICS HOME PAGE

 

© John Chambers 2005 - 2011
All rights reserved