[GreenKeys] RS-232 - Current loop converters available

[drlegendre .]

If someone is in need of a converter..

FYI - I still have that pair of 'refurbished' Camiacs RS-232 / CL
converters sitting here, if anyone should need one. They run from 120V AC
and do not require an external wall-wart transformer supply. On-board PSU
produces 24V @ 20mA to drive selector. Full optical isolation. Serviceable,
discrete TTL / bipolar circuit.

Email off-list if any interest. =)

On Thu, Feb 4, 2016 at 2:54 PM, Alf Fisher <alf_fisher at tiscali.co.uk> wrote:

> Hi Jerry,
> If you think that is a bit high, I thought you might like to know that
> these units appear to be available from no less than 6 suppliers on ebay
> asking a range of prices.
>
> The highest one is asking $250.00
>
> 73,
> Alf
>
>
> -----Original Message----- From: Paul Heller
> Sent: Thursday, February 04, 2016 8:31 PM
> To: Jerry Murphy
> Cc: Greenkeys
> Subject: Re: [GreenKeys] RS-232 - Current loop converters available
>
>
> Thanks Jerry. $43 sounds a bit high to me.
>
> Paul
>
> On Feb 4, 2016, at 12:29 PM, Jerry Murphy <gfmurphy at earthlink.net> wrote:
>>
>>
>>
>>
>>
>> Greenkeyers:  Black Box RS-232 - current loop converters are available on
>> that
>> popular internet auction website.  Here's the link:
>>
>> cgi.ebay.com/381530563235
>>
>> The current loop output of the converter is low voltage so it works fine
>> with
>> Teletype machines that have a selector magnet driver like the 32, 33 or
>> 35.
>> If you want to have it directly key the selector magnets on a 14, 15 or
>> 28,
>> you will need to add an outboard high voltage keyer circuit.
>>
>> No connection to the sale.
>>
>> Jerry Murphy
>>
>>
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