looking for a simple pendulum driver circuit

[Bill M]

I just installed a quartz battery movement into a wall clock that once had a
mechanical movement. I lost the pendulum capability and I'd like to find a
simple circuit that would move the pendulum with the same speed as in a
normal clock. I'd like to use the same pendulum the clock used before I
replaced the movement, which is 3" diameter bob and 12" long. The circuit
would be best powered from a single or double C or D batteries. Anyone have
any ideas or links?

Thank you,
Bill

 

[isw]

In article <jk12di$13c$1@dont-email.me>, "Bill M" <bm@map.net> wrote:

I just installed a quartz battery movement into a wall clock that once had a
mechanical movement. I lost the pendulum capability and I'd like to find a
simple circuit that would move the pendulum with the same speed as in a
normal clock. I'd like to use the same pendulum the clock used before I
replaced the movement, which is 3" diameter bob and 12" long. The circuit
would be best powered from a single or double C or D batteries. Anyone have
any ideas or links?

Try this:

http://www.sparkbangbuzz.com/els/magkick-el.htm

I built one, and it works as advertised.

Isaac

 

[nesesu]

On Friday, March 16, 2012 9:02:58 PM UTC-7, Bill M wrote:

I just installed a quartz battery movement into a wall clock that once had a
mechanical movement. I lost the pendulum capability and I'd like to find a
simple circuit that would move the pendulum with the same speed as in a
normal clock. I'd like to use the same pendulum the clock used before I
replaced the movement, which is 3" diameter bob and 12" long. The circuit
would be best powered from a single or double C or D batteries. Anyone have
any ideas or links?

Thank you,
Bill

Bill, you can buy quartz movements with pendulum for about $10 and they come with a pendulum stem that is cuttable to length as well as a bob.

Neil S.

 

On Sat, 17 Mar 2012 00:02:58 -0400, "Bill M" <bm@map.net> wrote:

I just installed a quartz battery movement into a wall clock that once had a
mechanical movement. I lost the pendulum capability and I'd like to find a
simple circuit that would move the pendulum with the same speed as in a
normal clock. I'd like to use the same pendulum the clock used before I
replaced the movement, which is 3" diameter bob and 12" long. The circuit
would be best powered from a single or double C or D batteries. Anyone have
any ideas or links?

Thank you,
Bill

Check at clockparts.com

Among other things, they have a quartz pendulum movement that can
handle 17" hands and a 25" pendulum for $13(US) plus shipping.

http://cart.clockparts.com/hightorquequartzpendulummovement-p-158.html