Extron ADA 6 modifications for use as 10MHz distribution amp STEINMETZ free download

File name Extron_ADA_6_modifications_for_use_as_10MHz_distribution_amp_STEINMETZ.pdf

Modifications to Extron ADA 6 Component for use as a 50 , 1/5/10 MHz distribution amplifier: 1. Replace 3x 75 input resistors with 50 resistors (SMD 1206). On the ADA 6 Component PC board, these are R37-R39. NOTE: one may want to parallel two or all three inputs internally to give a 1x12 plus 1x6 or a 1x18 configuration. In that case, use only as many 50 resistors as there are separate inputs. Removing the unused input BNC connectors may avoid future mishaps. Fill the empty rear panel holes with hole plugs. NOTE ALSO: To use the modified unit to buffer the output of an oscillator that is not rated to drive 50 , such as the HP 10811 or 10544, other values of input termination can be used -- 1k in the case of the 10811/10544, which would require 1.111k terminating resistors (taking into account the existing 10k input bias return resistors, which are in parallel). 2. Replace 3x 100