Looking to direct inject my Demco.. I would like to inject at the transmitter and leave the modulator box alone... but was going to leave this pic for everyone to enjoy.. thanks and I love this website just became a member but was always checking you guys out... thanks for having me...
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Direct inject DEMCO super satalite
- Thread starter Justwantdahifiaudio
- Start date
Looking to direct inject my Demco.. I would like to inject at the transmitter and leave the modulator box alone... but was going to leave this pic for everyone to enjoy.. thanks and I love this website just became a member but was always checking you guys out... thanks for having me...
Schematic is here:
http://www.cbtricks.com/radios/demco/super_satellite/graphics/demco_super_satelite_om_tx_sch.jpg
If you have enough gain, I would capacitively couple directly to the grid of the modulator tube. Something like a .01 ceramic disk feeding pin 2 of V6 should do the job. Might want to remove one side of the existing .001 cap that is there to reduce any noise from the other 2 pre-amps in front of this.
http://www.cbtricks.com/radios/demco/super_satellite/graphics/demco_super_satelite_om_tx_sch.jpg
If you have enough gain, I would capacitively couple directly to the grid of the modulator tube. Something like a .01 ceramic disk feeding pin 2 of V6 should do the job. Might want to remove one side of the existing .001 cap that is there to reduce any noise from the other 2 pre-amps in front of this.