555 IC Project - 'Red Alert' Siren query.

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555 IC Project - 'Red Alert' Siren query.

Yorkie

Senior Engineer in Charge

Posts: 2,861
Reputation: 21
Location: Cottingham East Yorks

#13

11-06-2015, 06:22 PM

(07-06-2015, 07:25 PM)Mark Hennessy Wrote: Pictures please

I'm informed that the PCB is finished and working fine, along with the timer 555 based unit mentioned in an ealier thread.

Pic of the 'siren' PCB attached below as requested.

Thanks once more for the help and encouragement!

Attached Files Thumbnail(s)

Regards, David.

BVWS Member.
G-QRP Club Member 1339.

'I'm in my own little world, but I'm happy, and they know me here' Cool

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Messages In This Thread

555 IC Project - 'Red Alert' Siren query. - by Yorkie - 05-06-2015, 07:29 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by AlanBeckett - 05-06-2015, 08:04 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 05-06-2015, 09:28 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Nick - 06-06-2015, 08:29 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 06-06-2015, 11:45 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Nick - 06-06-2015, 10:57 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 06-06-2015, 11:25 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Yorkie - 06-06-2015, 02:19 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Nick - 07-06-2015, 10:18 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Yorkie - 07-06-2015, 06:15 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 07-06-2015, 07:25 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Yorkie - 11-06-2015, 06:22 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Yorkie - 08-06-2015, 09:16 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 11-06-2015, 11:30 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Aerodyne - 12-06-2015, 09:24 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Mark Hennessy - 12-06-2015, 10:59 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by Nick - 12-06-2015, 01:13 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Yorkie - 12-06-2015, 04:49 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Nick - 12-06-2015, 05:09 PM

RE: 555 IC Project - 'Red Alert' Siren query. - by Aerodyne - 13-06-2015, 11:37 AM

RE: 555 IC Project - 'Red Alert' Siren query. - by ed731pdh - 16-06-2015, 03:29 PM

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