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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: Thank you gusser (NT) posted by rcollege on May 2, 2017 at 17:16:44:
One potential issue with delay relays has to do with the relatively small contacts. For longest life, it's a good idea to use a larger relay to turn on the HV transformer. I'm getting ready to add delays to my own SETs, and have decided to go even a step further. The delay relay will power a main relay, and that one will be wired so it latches electrically. In addition, one set of contacts will be wired to disconnect the delay relay. So, once the amplifier is fully operational, the delay relay will power down and cool off. Not only will its contacts only need to pass a few mA to activate the HV, its heater will only be used for a minute or so each time the amplifier is turned on.
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Follow Ups
- Delay Relays - Triode_Kingdom 21:14:51 05/02/17 (3)
- Re: Disconnecting Relay sound like over-kill - Johno 03:24:55 05/03/17 (2)
- Re: Disconnecting Relay sound like over-kill - Tom Bavis 07:35:06 05/03/17 (1)
- Re: Disconnecting Relay sound like over-kill - Triode_Kingdom 08:32:06 05/03/17 (0)
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