[ARC5] Anyone care to build an ARC-5 system?

[Christopher Bowne]

You can use the ARC-5 transmitters with the BC-456 screen modulator.  Other than rear connector pin out differences, the only change I made in my “composite group” system consisting of the T-19 and T-22, BC-456/DY-8, 274-N 4 transmitter control box, ARC-5 3 receiver control box , and the 3-6 and 6-9 Mc 274 receivers, and an ATA antenna relay, was changing the screen dropping resistor of the PA tubes to the value used in the 274-N transmitters.

Sent from my iPhone

> On Jun 10, 2018, at 17:39, Mark K3MSB <mark.k3msb at gmail.com> wrote:
> 
> Hi Guys
> I received an interesting email from a ham that has some “ARC-5” stuff and wanted to know if I would build his system for him, or knew of anyone that would.
> He has a pair of BC-456 modulators (unknown if they have dynamotors), but from the HB PS I would suspect the answer is no. He has a BC-696 and a T-22, both are in an FT-226A rack. Huh? Upon closer inspection, the T-22 sticks out from the front of the 696 a bit, which suggests some buggery in the rear connector on the T-22, 226A, or both. 
> Both antenna relays are missing, and one antenna connector has been replaced by an SO-239. Odds are the internal select relays are gone too, but I have no internal pictures.   Only the Shadow knows what lurks inside.....
> He also has the pilot's control box and the antenna relay.
> Anyway, I discussed his “mix and match” system, what might be wrong with them, the cables that would be required etc. I told him I would not be interested in building if for him as I work full time (and truth be told I'm not interested period.....) and I doubted if anyone would be willing to do it for free. But, I said I'd ask for him.
> Let me know if you're interested and I'll pass along contact info.
> I asked him what he was going to do with the system once it was built. Driving ARC-5's on the air, either AM or CW, ain't for everyone.....
> 73 Mark K3MSB
> 
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