Koch LB120 Load Box (I) innards pic

Repairs, trouble shooting, modding and so on.

Koch LB120 Load Box (I) innards pic

Postby dai h. » Sat Dec 10, 2011 8:46 pm

stumbled on this:

http://chitarre.accordo.it/articles/200 ... letta.html

(Resolution isn't very high, but) looks like the load is made of resistors only (the enclosure isn't very large either, so that also seems to point to 'resistors only'--as opposed to having a multi-tap transformer as in the Marshall Power Brake). The other parts visible (film caps, resistors, inductor(?), and transformer) look to be for the speaker emulating filter circuitry, line out, and headphone out.

Bit more info here:

dai h.
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Joined: Sat Jun 07, 2008 9:38 pm


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