Modifications of my Drake Receiver R8
Description of modification to improve the tone control for a better boost of the bass-response
5Spice Models for R8-ToneControl-Circuit (ZIP 2kB)
These models run also in the unregistered DEMO-Version of 5Spice, values can be changed but not saved.
For details please check on www.5spice.com
Description of
modification to install a backup-battery for the internal clock and to
reduce
the power-consumption when
the R8 is switched off
Description of Notch-Circuit and hints for better alignment = better notch depth
5Spice Models for R8-Notch-Circuit (ZIP 2kB)
These models run also in the unregistered DEMO-Version of 5Spice, values can be changed but not saved.
For details please check on www.5spice.com