I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz

Win wrote:

I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz



Glass relay? Are you talking about Apmerite time delay relays?

--
Former professional electron wrangler.

Michael A. Terrell
Central Florida

On Wed, 30 Mar 2005 16:48:23 GMT, "Michael A. Terrell"
wrote:

Win wrote:

I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz



Glass relay? Are you talking about Apmerite time delay relays?
Yes, Michael. I think I am talking about time delay relays.

Win

Win wrote:

On Wed, 30 Mar 2005 16:48:23 GMT, "Michael A. Terrell"
wrote:



Win wrote:


I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz



Glass relay? Are you talking about Apmerite time delay relays?


Yes, Michael. I think I am talking about time delay relays.

Win


I think he is referring to clear plastic cased relays.

Bill K7NOM

"Bill Janssen" wrote in message ...
Win wrote:
On Wed, 30 Mar 2005 16:48:23 GMT, "Michael A. Terrell"
wrote:

Win wrote:
I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz

Glass relay? Are you talking about Apmerite time delay relays?
Yes, Michael. I think I am talking about time delay relays.

Win
I think he is referring to clear plastic cased relays.

Bill K7NOM


Then those would most likely be P&B KARP series relays. Clear plastic cover, octal base plug base, DPDT, in a variety of coil voltages.
Lynn, W7LTQ

Win;
The tower resembles a US Tower with the retracting cable which was used
on some but not all models. I would assume the glass relays are in fact
time delay relays used as part of a remote control circuit. I beleive
this is the case because the US Tower controller without the remote
control option can be fooled into failing to reverse direction if the
up/down toggle is reversed while the motor is still moving. So if remote
control were used there would need to be a delay when switching direction.

As a part of your refurbishment you should replace each of the cables
and inspect/ replace the pulleys. The pulleys have bearings which can
fail and cause the cable to bind leading to failure.

Do keep in mind that the tower is a pretty dangerous piece of machinery
even if you are simply working with it laid out on the ground as the
sections can trap your hands if they move while you are working on it.
Once you get it erected, there is a lot of force on the cables and steel
and so becomes even more dangerous to work with.

You should study the assembly of the tower sections and cable
arrangement carefully and create drawings and label each part and cable
before disassembly. Feel free to e-mail me as I have refurbed one in the
past and it worked out pretty well.

Win wrote:

I recently purchased an old crank-up motor driven 60 foot tower that I
would hope someone could id for me. The motor belt drives a gearbox,
which turns the cable pulley. It has a approximately 1 foot by 18
inch control box which has two high current relays and two glass
contained relays. The glass-contained relays are in old 8 pin tube
sockets.

The tower, itself, is in good shape. I would like to re-build the
control circuits and out the tower in service. Any information anyone
can give me on this tower will be greatly appreciated. See at
www.winlyn.us/tower.jpg.

Win, w0lz





--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"

The Lost Deep Thoughts By: Jack Handey
Before a mad scientist goes mad, there's probably a time
when he's only partially mad. And this is the time when he's
going to throw his best parties.

I would like to thank everyone who posted and sent me mail. The
response was great and provided most of what I need. It is nice to
know that such information is shared so willingly by all.

Again, thank you all.

Win, w0lz