Help building a 1977 2203/04

[Peeps]

Anyone know of a clone kit for a 2203/04 mid to late 70's. If not, do you have any info on the board layout and such? Seems the 1981 and up jcm800's sound way different. Are these two amps really the same?

Thank you for any advice.

[Thiez]

Here's a schematic of an older 2203 ('76)
http://music-electronics-forum.com/atta ... -2203u.gif" onclick="window.open(this.href);return false;


But if i'm not mistaken (toke only a quick look) is the schematic the same as the 80's schematic.
http://www.drtube.com/schematics/marshall/jcm800pr.gif" onclick="window.open(this.href);return false;