Electricity from the phone line.

[BEP]

This is hilarious!

I can imagine what happens when you draw too much current (it is monitored and limited by the TELCO).

You draw more current than normal telephone devices....
The electronics at the Telco list your line as possibly shorting or wet...
The Telco sends a technician to investigate - maybe more than one...
They start some distance from your home so it takes a bit of time to locate the problem....

They find the problem is in your house....

The labor, material, and test equipment usage fees appear on your next phone bill.

Current Telco systems in the US locate the problem without sending a technician. This isn't cheaper because they make you pay for the technology.

I'll bet the Telcos love these devices!

[slapper]

FCC equipment manufacturers are limited to 80uA (I think. It's been a while) during on-hook conditions.

Off-Hook current will be limited to the battery and loop. Published battery voltage is 48V (but usually around 55V) with an internal series resistance of 600 ohms.
While off-hook you will normally see around 20-40mA with a voltage of 8-12V depending on the loop.
Many systems will disconnect the current if the line shows inactivity for very long.

Ring cycles do not allow much.
Standard private line frequency is 20hz, 90vac, (with the same loop resistance and battery resistance) with a cadence of 2 seconds on 4 seconds off.
Some systems have frequencies ranging from 16hz to 66hz if they have not upgraded their ring generators since the party line days.

Take care.

nap

[BEP]

Many systems will disconnect the current if the line shows inactivity for very long.

Ring cycles do not allow much.
Standard private line frequency is 20hz, 90vac, (with the same loop resistance and battery resistance) with a cadence of 2 seconds on 4 seconds off.

Oh! Bummer if you have really tense muscles and you bought the Russian phone line powered vibrator.

I suppose these products may indicate why Chernobyl was such a disaster.

With the world economy the way it is expect to see other quality products pop up.

A far better power source is buy a 12V photo cell array from Habor Freight. Use it to maintain the charge on the car battery you borrowed from your Mother-in-Law's car.

[SomedayIsle]

Rats in a maze.....

[triffid]

test