Sinclair mtv1

[Kevin Kuehn]

Unless you're feeding the video signal into a very low impedance I have to wonder why such a large capacitance value is needed. There's certainly no video coupling caps of that large value in a tube TV. I'm sure there's some obvious reason I'm overlooking. Possibly solid state stuff.

[bandersen]

Same output jack used for various function like injection into various video and sound IF stages.

[timmy]

Can a silver mica capacitor be used in place of a ceramic cap with same values in an rf circuit.

[old_tv_nut]

Originally Posted by timmy

Can a silver mica capacitor be used in place of a ceramic cap with same values in an rf circuit.

Generally yes. I would just check the voltage ratings.

[timmy]

I finally got these tvs working like new tuning exactly on the channel being broadcast. I got the exact varicaps and that did the trick although there are other things that had to be done.