[Jukebox-list] Electronic theorists: What component values for timedelay relay?

[Wesley Dean]

    Paul, my schematic shows a 100 ohm resistor and a 100 mfd in series across the relay. The resistance of the original relay may be as high as 1,000 ohms. These type relays have a close proximity between the coil and actuator. Therefore they are more sensitive than relays of different construction. Forget formulas and scientific mumbo jumbo and try various capacitors until you get the desired results. I'd suggest you start with the original value go from there. Wes 
----- Original Message ----- 
From: "Paul Taylor" <paul.taylor at georgestreetpress.co.uk>
To: <jukebox-list at lists.netlojix.com>
Sent: Friday, September 22, 2006 2:59 AM
Subject: [Jukebox-list] Electronic theorists: What component values for timedelay relay?


> This is the continuing saga of my attempts to get an AMI  'K' pulse  
> converter operational. I'm having to adapt a relay to take the place  
> of what AMI call the 'Time Delay Relay No. 1' which is faulty (coil  
> is open circuit on the inner end). I have a substitute coil which,  
> whilst the same physically, is lower resistance than the original and  
> won't 'delay' using the 220 ohm resistor shunt set-up of the original.
> 
> Essentially what I need to know is this: Can any electronic theorists  
> suggest / calculate where to start with a combination of resistor  
> and / or capacitor to give a time delay action of 40-60 milliseconds  
> on a 30volt dc / 400 ohm relay coil ?
> Thanks for any responses.
> Paul in the U.K.
> _______________________________________________
> Jukebox-list mailing list
> Jukebox-list at lists.netlojix.com
> http://lists.netlojix.com/mailman/listinfo/jukebox-list