Museum of Communications

[boB]

Speaking of electronic communications, here's a bit of my past history
finally explained in book form...

http://explodingthephone.com/

[niel]

onan,
you're calling boB as old as dirt if he remembers a tube tester and you show a switchboard that looks out of the 40s that you say they used when you were growing up?

for the record i used those testers extensively.

that 100kw tx looks interesting. think i'd hear you boB?

[TomW]

Speaking of electronic communications, here's a bit of my past history
finally explained in book form...

http://explodingthephone.com/

boB;

So could you whistle up a free long distance call among your racking and stacking skills?

I remember those days but never played with it.

Funny how stories unfold.

Tom

[boB]

Speaking of electronic communications, here's a bit of my past history
finally explained in book form...

http://explodingthephone.com/

boB;

So could you whistle up a free long distance call among your racking and stacking skills?

I remember those days but never played with it.

Funny how stories unfold.

Tom

Yes, from certain places.

It was quite a large and very interesting "system" to learn and play in.

boB

[nigel]

I Read , but have no idea whats going on,..... in my youth I flew RC aircraft , and loved the USA mags that my club provided.... but carry on the missing link is out there

[phonetic]

Bell System MF register and 2600hz line supervision tone (tone on idle) . allowed phone pherakers to make free toll calls, using so called MF  boxes..send a 2600hz tone to disconnect the toll junctioin then send MF digits to make toll call..whilst keeping your line open..was  a bug in the system to allow users to send 2600hz tone.

Rest of the world used R2 standard and out of band line signaling..unlike the Bell System. in the 50-70s