Suprise new project! Tele-Tone. TV-149 !

[Yamamaya42]

resistance check of where that wire SHOULD go, to ground, checks OK, meaning the main HV coil is good.

For lack of any better idea, I will try a 180 ohm resistor in place of the 18, when I replace the selenium rect with a modern diode.

[timmy]

Originally Posted by Yamamaya42

resistance check of where that wire SHOULD go, to ground, checks OK, meaning the main HV coil is good.

For lack of any better idea, I will try a 180 ohm resistor in place of the 18, when I replace the selenium rect with a modern diode.

So you’re going to add a resistor while replacing the selenium so why don’t you check the voltages without putting a resistor in if you do need it ok you may not. All my Motorolas got silicon diodes and none of them have a resistor the voltages are all where they should be. You never know with the resistor it may be low.

[Yamamaya42]

Originally Posted by timmy

So you’re going to add a resistor while replacing the selenium so why don’t you check the voltages without putting a resistor in if you do need it ok you may not. All my Motorolas got silicon diodes and none of them have a resistor the voltages are all where they should be. You never know with the resistor it may be low.

Replacing a selenium with silicon diodes always causes a raise in voltage, due to the better rating of the silicon diode.

I have 20 ohm 10w I will try, it should be ok, with the higher voltage from the SI diode.

[timmy]

Originally Posted by Yamamaya42

Replacing a selenium with silicon diodes always causes a raise in voltage, due to the better rating of the silicon diode.

I have 20 ohm 10w I will try, it should be ok, with the higher voltage from the SI diode.

Well yes voltage usually goes up with the change but all my sets never did