RFT T-63

[Helge]

Looks like something on sending side is stuck. What about only energizing the receiving magnet -
then the machine should also not print anything.

[DF3OE]

Vladimir,

increase the loop voltage! Normally the network works with 120 volts, 30 Volts might not be enough for powering the receiver magnet.
I would recommend minimum 50 Volts. Our i-Telex systems works with 80 Volts.

Henning

[Martin]

привет Владимир,
какой красивый телеграф c русскопишущей клавиатурой. Телеграф не будет работать ниже чем 65 вольт и 40 мА элетпричества.

Счастливо Мартин

[vladimir]

привет Владимир,
какой красивый телеграф c русскопишущей клавиатурой. Телеграф не будет работать ниже чем 65 вольт и 40 мА элетпричества.

Счастливо Мартин

Спасибо!

Vladimir,

increase the loop voltage! Normally the network works with 120 volts, 30 Volts might not be enough for powering the receiver magnet.
I would recommend minimum 50 Volts. Our i-Telex systems works with 80 Volts.

Henning

I will try it

Thank you

[vladimir]

Can i use 110 v AC with diode bridge and capacitor for powering current loop?
here is the link https://daduke.org/tty/.

Thank you

[DF3OE]

Beitrag von vladimir » So 6. Nov 2016, 14:18
Can i use 110 v AC with diode bridge and capacitor for powering current loop?

yes, you can use it. But important is to use a (adjustable) resistor, about 2 kOhms 5 watts in the circuit to limit the current to 40ma.

Henning

[vladimir]

Beitrag von vladimir » So 6. Nov 2016, 14:18
Can i use 110 v AC with diode bridge and capacitor for powering current loop?

yes, you can use it. But important is to use a (adjustable) resistor, about 2 kOhms 5 watts in the circuit to limit the current to 40ma.

Henning

Thank you

[vladimir]

I have attached diode bridge with capacitor to 220/110 v transformer.
I have 40 mA loop @ 156 volts DC.

I have plug 4 pin connector in my loop. The current is flowing (40 mA).
There is voltage on solinoid (7 volts DC).The Solinoid will work if i move metal plate towards it.

Is it ok? Can i power the machine?

Thank you

[DF3OE]

Yes, switch on the motor and see if the machine runs more or less silent and if you can
type.

Henning

[vladimir]

Yes, switch on the motor and see if the machine runs more or less silent and if you can
type.

Henning

Machine is more or less silent. I can print, but carriage wont move.