11-02-2018, 07:58 PM
Hi.
Today I added in a flywheel discriminator, I used the Thorn 1500 circuit with capacitor values compensated for the lower frequency 405 line timebase. The circuit was built on a piece of matrix board and has been tested with flying leads. A small bit of imbalance has been added by altering one of the shunt resistor values across the lower diode. this has given me near enough perfect picture with no fold over on either side.
Some hooking is seen on the top of the picture on the castellations but not on picture info.
Next is the CRM93 that I'll need to collect in a month or so.
I think I'll call this a BushTV22GTI
Today I added in a flywheel discriminator, I used the Thorn 1500 circuit with capacitor values compensated for the lower frequency 405 line timebase. The circuit was built on a piece of matrix board and has been tested with flying leads. A small bit of imbalance has been added by altering one of the shunt resistor values across the lower diode. this has given me near enough perfect picture with no fold over on either side.
Some hooking is seen on the top of the picture on the castellations but not on picture info.
Next is the CRM93 that I'll need to collect in a month or so.
I think I'll call this a BushTV22GTI
