Cornell Plexi 45 Owner'S Manual Download Page 1

 

 

© 1995-2007 CORNELL Musical Equipment Design & Development 

 
 

 
 

 

 
 

 
 
 
 
 

 
 
 
  

Plexi 45/50

     

 

Owner’s Manual        

 
 

DC Developments 

Musical Equipment Design & Development 

 

Unit 13 Rosshill Industrial Park, Southend-on-sea, Essex SS2 5PZ England 

 

Tel/Fax  +44 (0)1702 610964 

www.dc-developments.com 

 

Summary of Contents for Plexi 45

Page 1: ...quipment Design Development 1 Plexi 45 50 Owner s Manual DC Developments Musical Equipment Design Development Unit 13 Rosshill Industrial Park Southend on sea Essex SS2 5PZ England Tel Fax 44 0 1702 610964 www dc developments com ...

Page 2: ... all instructions before operating the amp WARNING To prevent damage fire or shock hazard do not expose this unit to rain or moisture No user serviceable parts inside Refer servicing to qualified personnel only This unit must be earthed Use the correct mains cord If you require any further information regarding the Plexi 45 50 amplifier or any other CORNELL products please do not hesitate in conta...

Page 3: ...hown us that not all amplifiers made at this time were the same Minor changes not just in a visual sense but also in the basic circuit design appear between batches made at the factory We have taken the basic design to its finest point tailoring the components and adjusting the circuit to produce the ultimate Plexi sound The Cornell Plexi amplifier is not just a good looking reproduction antique t...

Page 4: ...d rather than circuit board mounted valves tubes Such attention to detail ensures a very close reproduction of the full harmonic spectrum of your guitar s pickups resulting in a pure natural sound that will turn heads at any venue and or that records superbly The Pre amplifier The Plexi 45 50 is designed to be simple in use and yet produce the quality of sounds that the musician of today expects f...

Page 5: ...t while the semiconductor rectifier has a faster response and less sag improving transient attack 11 High Low Switch Reduces the output to 15 Watts 12 8 16 Switch Output speaker impedance If you have a Cornell 2 x 12 speaker cabinet set this switch to 16 Ohms Should you use two 16 Ohm cabinets switch to 8 ohms 13 Mains Fuse The fuse holder contains the mains fuse to the amplifier The mains fuse pr...

Page 6: ...Amp for the 230Volt GB Model HT 500 mA INPUT IMPEDANCE Input Hi 2 2 MegOhm Input Lo 94 kOhm CONTROLS Normal Channel Volume Treble Channel Volume Bass Middle Treble Presence OUTPUT 45 50 Watts rms Class AB CABINET Plywood Head Pine and Plywood speaker cabinet DIMENSIONS Head Height 9in 230mm Width 26in 660mm Depth 9 in 230mm WEIGHT Head 37 5 lbs 17Kgs OPTIONS on request Colours Speaker Cabinet ...

Page 7: ...uld only be replaced with the same valve types as specified in the illustration below When changing valves ALWAYS unplug the amplifier and remember that the VALVES ARE HOT Wait for the valves to cool or replace valves when the amplifier has not been used for several hours Your Plexi 45 50 amplifier has 6 valves three pre amp valves 12AX7 ECC83 two power valves EL34 and a rectifier valve GZ34 Valve...

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