[Johnson] Push to talk mod relay for Johnson Ranger

[K6JEK]

I'm with Dee.  If I get a Ranger with the stock push to talk mod I take 
it out.  High voltage in unexpected places like a microphone cable is a 
really bad idea.  There are many other things wrong with the stock PTT 
mod but that's number one.

Jon, K6JEK

On Feb 16, 2006, at 6:23 AM, Dee C. Almquist wrote:

> Dear Ranger Ops
> Just a suggestion on what / how to configure the PTT circuit. I use 
> only 12v
> relay (presently bought from Radio Shack), 4 pole dbl throw small but 
> big
> enuf for Ranger power. Two poles for Ranger mods per book, 3rd for 
> breaking
> the modulator screen voltage while in standby. This screen switching 
> shuts
> down the modulators therefore, saving power & the modulator tubes. 
> Twelve
> volts can be easily derived from a small circuit that I will give you 
> if you
> email me. The object of this mod is to eliminate the complication & HI
> VOLTAGE on the key line.
> 73 es Dee
> W4PNT
>
> ----- Original Message -----
> From: "John King" <k5pgw at yahoo.com>
> To: <johnson at mailman.qth.net>
> Sent: Wednesday, February 15, 2006 6:59 PM
> Subject: [Johnson] Push to talk mod relay for Johnson Ranger
>
>
>> Want to put the PTT mod into my Ranger. The manual, at
>> page 20, calls for a Potter & Brumfield LM11 DPDT
>> relay or equivalent. Coil resistance is 10,000 ohms. I
>> have looked at Mouser catalog and relays with 10,000
>> ohm resistance coils don't jump out at me.
>>
>> Anyone know of a good substitute for the P&B LM 11?
>>
>> Has anyone recently made that PTT Modification to a
>> Ranger l? What relay did you use?
>>
>> Your input appreciated. Thanks and 73, John, K5PGW
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Tired of spam?  Yahoo! Mail has the best spam protection around
>> http://mail.yahoo.com
>> Johnson mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/johnson
>> Help: http://mailman.qth.net/mmfaq.html
>> Post: mailto:Johnson at mailman.qth.net
>>
>
> Johnson mailing list
> Home: http://mailman.qth.net/mailman/listinfo/johnson
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Johnson at mailman.qth.net
>