[Milsurplus] Another ARC-5 Transmitter Question

[Ian Wilson]

I modelled and simulated the output circuitry a while back (mostly to look
at
matching to a 50 ohm load). I could probably dig out my numbers for the 40m
TX if necessary.

This was an AC-only analysis, of course. I don't know how well any of the
vacuum tube SPICE models work in Class C.

73, ian K3IMW



On Thu, Oct 31, 2013 at 12:03 PM, Peter Gottlieb <nerd at verizon.net> wrote:

> Anyone put one of these transmitters in pspice?
>
>
>
> On 10/31/2013 2:40 PM, J. Forster wrote:
>
>> Suppose you have a stock configuration ARC-5 transmitter rack with 2 or
>> more transmitters.
>>
>> Am I correct that ALL the 1625s will have both Plate and Screen voltages
>> applied, but only the Tx selected for use will have the Cathodes of the
>> finals grounded. The other tubes will be pretty much fully cut-off because
>> of the 51k R-75 Cathode resistor.
>>
>> Also, is the connection through C-62 in the T-22 essentially negative RF
>> FB around the final?
>>
>> -John
>>
>> ==================
>>
>> ______________________________**______________________________**__
>> Milsurplus mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/milsurplus<http://mailman.qth.net/mailman/listinfo/milsurplus>
>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:Milsurplus at mailman.qth.**net <Milsurplus at mailman.qth.net>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
> ______________________________**______________________________**__
> Milsurplus mailing list
> Home: http://mailman.qth.net/**mailman/listinfo/milsurplus<http://mailman.qth.net/mailman/listinfo/milsurplus>
> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
> Post: mailto:Milsurplus at mailman.qth.**net <Milsurplus at mailman.qth.net>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>