cobra 200 echo??

[bob85]

can anybody tell me what kind of echo the cobra uses, is it a digital echo like the magnum s9 or a bucket brigade type echo like a sadelta mic and older radios??

 

[DTB Radio]

The echo chip specs are here.
The schematic for the radio is here.

You can change R39 at pin 6 of the echo IC to change the echo speed. If you have a steady hand, you could run leads to a variable control instead of a fixed resistor.

 

[bob85]

thanks dtb, a few of my buddies have been asking me about the cobra echo compared to the magnum echo

 

[DTB Radio]

From a construction standpoint, my vote is with the 200's echo. Being part of the main board, there is WAY less chance of bad connections developing. On the downside, due to its being all surface-mount, modifying the echo is difficult.

I found that a 22k ohm resistor at R39 gave a very nice delay compared to the stock setting. Not too fast or two slow. If you happened to like the old Mr Jigs reverb sound, use a 10-15k, and you'll be almost identical in sound to that old reverb unit.