Two of the radios that haven't been installed until recently were the ARB Liaison receivers. These receivers were the main ones used for long range and general communication. I had found a couple of ARB's on eBay a while ago but finding the shock mounts was hard. I considered making them but I wanted to find a good example so I could make something reasonably close.
After putting out the word that we were looking for an ARB mount or two a guy emailed to say that he had a full ARB set available complete with the shock mount. The set looked amazing in the photos but was real pricey. I held off hoping to find another option over time. After a year and a half of looking it was clear that these items were quite elusive. A friend who has been helping with the radios on the PV-2 has also been looking for the same set and met with the same results.
I decided to try and get the expensive set and the owner came down a little on his price but didn't want to pack up the set for shipping. We were hoping to swing by Washington state to pick it up but no trips to the area presented themselves. Then Chris (fellow WIXer of the same name) came in to save the day. He was driving near by and diverted to pick up the ARB set and pack and ship it to us. Thanks Chris for your kindness!
What a beautiful set. Not only an unmodified receiver on its shock mount but the control heads, tuning shafts, complete set of connectors, manuals, the ZB direction finding adapter and the spares box for the ARB and ZB with full contents. There was even the original canvas radio cover for the receiver. Pretty cool!


Here is a shot of the inside. Unmolested and complete with the dynamotor which is usually the first thing removed and thrown away as the radios were modified for ham use and a non rotary power supply was often fabricated.
Check out the JAX overhaul decal on the front face of the ARB and on the dynamotor and matching ones on each of the control heads. A JAX overhauled set. Should still be under warranty.

I think that almost every Navy radio set came with operating spares usually in a metal box just like this. I have found the spares boxes for the APX-2, ARC-5 and others but sadly they were just empty boxes. Check out the spares box that came with the ARB

The newspaper used for packing...

Dated October 16th, 1943!

Tubes, capacitors, chokes, dynamotor brushes, the works


This is the ZB set which was a homing adapter used with the ARB and a loop antenna. The earlier PV-2's used it but our late PV-2D did not. Too bad

Check out the CONFIDENTIAL decode card. This was used to find your way back to the carrier with the codes of the day. The ZB was replaced with the ARR-1 and the ARR-2 later in the war used for the same purpose if I am not mistaken. It was kind of like a VOR and would give you a bearing to the carrier once decoded

The spares box for the ZB even has a little paper tamper tape on the latch with a little Navy anchor stamp on it

The ZB homing adapter itself with its cover. This set attached to the top of the ARB (and others like the RU series of receivers) with snap slide fasteners and would connect to a manually operated loop antenna. It was used to home in on the signal from the receiver and was used for homing in on ships

The first ARB installed

And both of them with their protective covers in place. Notice the local manual cranks visible at the aft inboard corners. When you crank the coffee grinders these spin too. A good visual for the visitors to see.

Then the tuning shafts are connected to the control heads already mounted near the radio operator. These shafts are like a speedometer cables that the crank to tune remote control heads or coffee grinders use to tune the receiver. When hooking them up you need to set the receiver and the control head on the index mark and then hook up the shaft for proper calibration.
The next step will be to wire the control heads to the receivers and run the power circuit. The antenna leads will be run to and through the transmitter which disconnects the antenna from the receiver when transmitting so the transmitter doesn't fry the receiver. After its all hooked up then its time to fire them up and see if we can hear the latest from Tokyo Rose!
Funny thing that has happened a few times now; I made a large stainless steel shock mount for the APS-3 radar modulator only to go on a driving trip around the country. At Albert's place in St. Louis guess what I came across not a week after I made the rack? A nice NOS original rack. Bitter sweet but I was still all giddy to find it, right Albert?
So I made an ARB rack using the original that came with the nice set and it turned out...ah... so so, kinda ugly but it did the job. So then Nick Veronico and I head off on another road trip to do a trade with a museum and guess what that museum has sitting on a table? A nice looking ARB receiver complete with a nice shock mount. Since they were more than happy to make it a part of the trade l was all giddy once again. Its the little things that makes some of us Warbird Nerds happy
I am noticing a pattern that as shortly after I make something I am craving that the very same item shows up. Hmmm...
I figure that I should get cracking on fabricating the drop tank pylons so as soon as they are finished I can find a set of NOS ones likely serial numbered to 84062!
With the ART-13 running and the ARB soon to follow we will have LF and HF communication capability. Next will be wiring the ARC-5 set which brings 8 channels of VHF and more HF on line. Then radar...
Slow but steady