I have built a equatorial mount and am using a Byer drive for the polar axis. It came with a Hurst AC synchronous motor, P/N 3002-025 115V 1/2 RPM, and the Hurst website says to use a .25mf capacitor with it. I went to Radio Shack and they had a .22uf polyester-film capacitor and it is rated for 50WVDC maximum. Will this work-or-does anyone know where I can get the correct capacitor to use with this motor? I am not really an electronics person.
BYER DRIVE HURST MOTOR CAPACITOR
Posted 08 November 2015 - 10:56 PM
Try an appliance parts/repair place. That is a standard motor capacitor.
Edited by smeyer8015, 08 November 2015 - 10:56 PM.
Posted 08 November 2015 - 11:07 PM
Appliance store prices tend to run quite high. You can get the capacitor at DigiKey, Mouser or Jameco on-line stores.
Posted 09 November 2015 - 08:23 AM
First of all the Radio Shack Capacitor will not work since it is rated at only 50 WVDC. You need a cap that is rate at over 100 volts since your powering the motor form 120 VAC. Common voltages 250, 400 and 600 WVDC and it is no problem to use a cap that has a higher rating then need. Here is a source for them https://www.tubesand...pacitors?page=1
Also you want a Non polarized type.
Edited by DAVIDG, 09 November 2015 - 08:41 AM.
Posted 09 November 2015 - 11:08 AM
The capacitor should be rated a minimum of 150 volts AC or 250 volts DC. I likely have one that I will send you if you PM me.
Posted 09 November 2015 - 11:58 PM
for this motor--problem solved.