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

[Christopher Bowne]

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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