Ham Radio Homebrew Informations: Re: [HamBrewers] Power-off delay circuit

Thursday, November 22, 2012

Re: [HamBrewers] Power-off delay circuit

Right Thanks

Charudatt (VU2UTX) is working on it.

Ravi

Believe each human being has the potential to change, to transform one's own attitude, no matter how difficult the situation." - Dalai Lama

From: rahul srivastava <lkorahul@yahoo.com>
To: HamBrewers@yahoogroups.com
Sent: Monday, November 19, 2012 4:26 PM
Subject: Re: [HamBrewers] Power-off delay circuit

Ravi,

Please go to Charus place he will do the coding its simple.

73's

Rahul VU3WJM

--- On Tue, 13/11/12, Aravind Balasubramanian (VU2ABS) <vu2abs@gmail.com> wrote:

From: Aravind Balasubramanian (VU2ABS) <vu2abs@gmail.com>
Subject: Re: [HamBrewers] Power-off delay circuit
To: HamBrewers@yahoogroups.com
Cc: "gareth evans" <headstone_255@yahoo.co.uk>
Date: Tuesday, 13 November, 2012, 12:48 AM

I smell a QROO linear being brewed ;-). Please check the various amp [bias control, metering and protection] board which also include this feature you are requesting to control the blowers using microcontrollers. There are 3 amp mailing list from which you can digout stuffamps@contesting.comham_amplifiers@yahoogroups.comrfamplifiers@yahoogroups.com73AravindOn 11/13/2012 12:26 AM, gareth evans wrote:

It sounds exactly like those fan units fitted as ventilators in bathrooms

--- On Mon, 12/11/12, ravimiranda <ravimiranda@yahoo.com> wrote:

I am searching for a power-off delay circuit that works as follows1. Switch-on activates the equipment and a fan 2. Switch-off switches off the equipment3. Fan remains on for 2-5 minutes (configurable??)Used for AC mains (230VAC), switch will be the usual on/off electrical power switch.