[TenTec] CorsairII obsolescence - MCU copying

[Steve Hunt]

Folks,

I've now added the iambic keyer functionality to my board using a second 
PIC. I didn't include the keyer memory functionality because I never use 
it, but the connectivity is there if I decide to add it at a later 
stage. I've posted the schematics and the object code, plus a rough 
layout of the major components, on my web site:

http://www.karinya.net/g3txq/corsair_display/

If anyone has a go at building one I'd be very interested in your 
experience; in particular:

1) Does the simple input circuitry work OK with your levels of HFO signal
2) Does the board change the number/levels of any spurii heard in the 
receiver
3) Is the board immune to high levels of RF on Tx
4) Does the "last digit jitter" look about the same as the original

5) Does the keyer speed range seem about right
6) Does the iambic implementation "feel" right. I don't use iambic 
myself so it's difficult to judge if it's correct.

73,
Steve G3TXQ