Codan Radio Communications VT-3A130-S-FSH ユーザーズマニュアル

VT-3A130 Amplifier Instruction Manual

6-1

ISSUE

            

DATE

                   

DESCRIPTION       

AND      (REASON)                                                                    

1

May 97

• First Issue.

2

Mar 98

• To improve the performance at -40˚C.  ECO #546.

C35 was 2.2µF now not installed.
R19 was 274R now not installed.
R20 was 274R now not installed.
R21 was 18R2 now 0R00.
PCB was 50048-01 now 50048-02.

3

Mar 98

• Updated the PCB to make it easier to assemble.  ECO #551.

PCB was 50048-02 now 50048-03.

4

Mar 00

• Corrected the instruction manual part number on the title page.

Part number was IM20-VT3A130AMP now IM22-VT3A130AMP

• The Amplifier is now  capable of working over the whole AM Frequency

band (118 – 138 MHz) without being re-tuned.