Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-24 Thread Ron Wright
lder@yahoogroups.com >Subject: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit) > >> The 555 is dedicated as a timing device. > >When you work with it for any amount of time you come to >realize the design and layout is very practical and the

Re: Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-24 Thread Ron Wright
/r >From: Nate Duehr <[EMAIL PROTECTED]> >Date: 2008/04/24 Thu AM 03:44:53 CDT >To: Repeater-Builder@yahoogroups.com >Subject: Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 >circuit) > > >On Apr 22, 2008, at 12:25 PM, skipp025 wr

Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-24 Thread Nate Duehr
On Apr 22, 2008, at 12:25 PM, skipp025 wrote: > > The 555 is one of the most useful electronic circuit chips ever > made. It has a fairly large number of possible simply configured > mono & astable (cycle) circuit operations. And it's just as easy > to get lost when trying to use it for specific

Re: Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-23 Thread no6b
At 4/23/2008 05:13, you wrote: >The 555 is dedicated as a timing device. ...which is all it does. >The LM324 is a quad op-amp and one of the poor ones. ...which is why I said I now use the TLV2374. >As for use as a timer the 324 needs lots of glue to make it work. Depends on what you're doin

[Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-23 Thread skipp025
> The 555 is dedicated as a timing device. When you work with it for any amount of time you come to realize the design and layout is very practical and the chip is now considered an industry work-horse. But it can be used in linear applications... so never say never. > The LM324 is a quad o

Re: Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-23 Thread Ron Wright
eater-Builder] Re: Carrier Control Timer (use the COR-2 >circuit) > >At 4/22/2008 11:25, you wrote: > >>Re: Carrier Control Timer (use the COR-2 circuit) >> >>The 555 timer is a lot like the 723 (voltage reg) chip in regards >>to a very large variety o

Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-22 Thread no6b
At 4/22/2008 11:25, you wrote: >Re: Carrier Control Timer (use the COR-2 circuit) > >The 555 timer is a lot like the 723 (voltage reg) chip in regards >to a very large variety of available circuit options and layouts >that simply must obey certain rules detailed in the Mfgrs data >sheets. Onward..

[Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-22 Thread skipp025
Re: Carrier Control Timer (use the COR-2 circuit) The 555 timer is a lot like the 723 (voltage reg) chip in regards to a very large variety of available circuit options and layouts that simply must obey certain rules detailed in the Mfgrs data sheets. Onward... The 555 is one of the most us

Re: [Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-22 Thread no6b
At 4/21/2008 22:10, you wrote: >The 555 will do the job just fine... you need only configure it >properly, which for me ended up being the same circuit Hamtronics >used in their early COR-2 Board. Simply copy that circuit less >the hang timer portion and you're set. > >I wish I could claim credit

[Repeater-Builder] Re: Carrier Control Timer (use the COR-2 circuit)

2008-04-21 Thread skipp025
The 555 will do the job just fine... you need only configure it properly, which for me ended up being the same circuit Hamtronics used in their early COR-2 Board. Simply copy that circuit less the hang timer portion and you're set. I wish I could claim credit for it... but the circuit design