[ARC5] T17/ARC-5 transmitter--looking for one...

[Peter Bertini]

Thanks for the info.  I am mostly interested in CW, so the modulator is not
a concern for me.

I will carefully check Pin 1 on all the sockets to see if it is grounded or
not to determine the
transmitter's heritage.

Pete

On Sat, Feb 8, 2020 at 1:13 PM Christopher Bowne <aj1g at sbcglobal.net> wrote:

> Along with the T-17 you will need either MD-7 ARC-5 plate modulator or the
> SCR-274N BC-456 screen modulator.  With those units dynamotors, relays, and
> associated components you will be able to power the transmitters and
> operate them on voice, CW, or MCW (although MCW is no longer a permitted HF
> mode in the US).  If you use the  BC-456 screen modulator, you will need to
> change the value of the 2x 1625 final amplifier tube screen dropping
> resistor used in the SCR-274 transmitters, the exact value escapes me now,
> but a review of the various ARC-5 and SCR-274N transmitter schematics will
> show show you.   Other than that, there are a number of additional small
> differences between the ARC-5 and SCR-274 transmitters, the most
> significant being the rear connector size and pin outs.  Be careful if you
> mix and match across the two species of command sets!  Nice finds!
>
> Chris AJ1G Stonington CT
>
> Sent from my iPhone
>
> On Feb 8, 2020, at 09:57, Mike Feher <n4fs at eozinc.com> wrote:
>
> 
>
> I have all three the T-15, 16, and 17. Two of them are NOS in original box
> and one is like NOS but without box. I really paid a premium for these as I
> purchased them individually on eBay ages ago. I have come to the conclusion
> that I will never do anything with them like I intended, so, I intend to
> sell them. I am open to offers. I will take photos as soon as the weather
> warms up. 73 – Mike
>
>
>
> Mike B. Feher, N4FS
>
> 89 Arnold Blvd.
>
> Howell NJ 07731
>
> 848-245-9115
>
>
>
> *From:* arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> *On
> Behalf Of *Peter Bertini
> *Sent:* Saturday, February 8, 2020 9:29 AM
> *To:* arc5 at mailman.qth.net
> *Subject:* [ARC5] T17/ARC-5 transmitter--looking for one...
>
>
>
> I've been lucky enough to find two NOS transmitters, a T-22
>
> and a T-19!!!  Sure nice to find one with the tubes, covers,
>
> front dial scales, and not missing the rotary inductors.
>
>
>
> It is really quite thrilling to hold one that looks like it has
>
> never been touched, abused or used!
>
>
>
> I've printed all of the info from Dave, AB5S so they will
>
> be going on the air as designed.
>
>
>
> Next quest is a T-17..  are these extremely rare and hard to
>
> find?  Where is the best place to advertise for one?
>
>
>
> Pete W1BR
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