200 Khz/70 W rms tx/rx connection and parts list

[Teo Pelhoteo]

i have above information of Ray Jefferson
color telescan 2000A video scan sounder.It in quite simple,board size 12 X 7 cm 10 transistors 0.3 ms pulse lenght.If somebody are intrested,sent mail.

[DAVID HUANG]

Re: 200 Khz/70 W rms tx/rx connection and parts list

DEAR SIR:
THIS IS DAVID HUANG FROM MAINLAND CHINA.
I LIKE FISHING VERY MUCH, I HAVE ONE 18 METERS
FISHING BOAT IN CHINA. I WANT TO BUY ONE SET SONAR
FOR MY FISHING BOAT. IT CAN DETECT SEA WATER UNDER
80 METERS BOTTOM AND GET VERY CLEAR BOTTOM IMAGES.
SECTOR CAN DETECT ROUND ONE MILE. CAN YOU HELP ME
TO FIND THIS SIZE SONAR?

WITH BEST REGARDS,
DAVID HUANG
CHINA