On Sat, 21 Feb 2004 18:09:27 GMT, "Keith"
wrote:

Radio Shack here in Canada is charging almost 50 bucks for it!!!!!

That's what, $3.95US?


Joe Bramblett, KD5NRH

$3.95 US...You wish!! :O)

$3.95 US...You wish!! :O)

RS used to sell such an item...plugs in and strobes when the line rings...
use them a lot in broadcast use.....

Chris
WB5ITT
at arrl.net

Keith wrote:

Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

Thanks

Keith

RS used to sell such an item...plugs in and strobes when the line rings...
use them a lot in broadcast use.....

Chris
WB5ITT
at arrl.net

Keith wrote:

Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

Thanks

Keith

The easiest is a neon bulb NE-2 [don't use an NE-2H] and the largest
resistor to get it to light. Probably in the 10's to 100k. This isn't
bright, but needs no power. This was used for many years in many circuits.

If it is not bright enough, then one of the other circuits with a high
resistance sense and external power to light a bright light is needed. That
link has one


http://www.ee.washington.edu/circuit...Schem_Tel.html



"Keith" wrote in message
...
Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

Thanks

Keith

The easiest is a neon bulb NE-2 [don't use an NE-2H] and the largest
resistor to get it to light. Probably in the 10's to 100k. This isn't
bright, but needs no power. This was used for many years in many circuits.

If it is not bright enough, then one of the other circuits with a high
resistance sense and external power to light a bright light is needed. That
link has one


http://www.ee.washington.edu/circuit...Schem_Tel.html



"Keith" wrote in message
...
Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

Thanks

Keith

"Keith" wrote in message
...
Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

All Electronics has boards that will do this, 5 for $1.00.

http://www.allelectronics.com/cgi-bi...arch&item=EX-7
0&type=store

Tom

"Keith" wrote in message
...
Does anyone have a schematic for once of those strobe circuits that will
flash when the phone rings. I want to make one for my workshop where it's
very noisy at times and I don't hear the phone.

All Electronics has boards that will do this, 5 for $1.00.

http://www.allelectronics.com/cgi-bi...arch&item=EX-7
0&type=store

Tom