[ARC5] RBB-6 Bring-Up

[AKLDGUY]

The manual that covers the VHF ARC-5 equipment is an amazingly detailed and
comprehensive 225 page document for the T23/ARC-5 transmitter and R28/ARC-5
receiver. There is what must be a mistake in the transmitter schematic,
Fig. 60.

As drawn, it shows the armature of the turret-rotating motor connected at
all times to the 28V heater rail. The armature wire has been continued too
far left to join the upper moving contact of K-304 instead of dropping down
to join the lower moving contact, to which the commutator is connected.

Neil ZL1ANM


On Sunday, March 17, 2019, Kenneth G. Gordon <kgordon2006 at frontier.com>
wrote:

> Comments:
>
> 1) The RBB/RBC have possibly the best output limiter I have ever used.
>
> 2) MANY military manuals include significant errors, so don't be surprised
> when you find
> them. For instance the schematic for the TCM-2 transmitter shows a MAJOR
> error in the
> wiring to the final amp stage. I corrected that in my own manuals and have
> posted that
> correction on my website here:
>
> http://www.w7ekb.com/Personal/TCM-2/
>
> 3) I consider the RBB/RBC receivers to be the absolute best of their era.
>
> Ken W7EKB
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20190317/01a49f37/attachment.html>