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  #391  
Old 11-10-20, 16:34
David Dunlop David Dunlop is offline
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I was finally able to sit down and get the Gloss Navy Grey touch up paint work done on the Sender panel yesterday morning. The 16-hour drying time was up at 5:00am this morning, though a good week will be needed for the paint to cure and harden.

As I expected, the colour match is excellent. But the difference in gloss between original and new paints does make the touched up sections sparkle somewhat in the light when you move the panel around a bit. Considering the amount of hardware and all the fittings to be reattached to the panel, however, I think the touched up paint will be lost in the other details of the panel when fully reassembled.

The two photos today compare the touched up panel to the last stage where the primer had been applied.

Next step will be to touch up the larger paint damage to the black sections of the decals. The right hand edge of the large METER Decal – which should be flush with the right edge of the panel – is a good example of what I mean, in the lower right corner. Once that is done, I can haul out the UV Lamp and detail any other chips that show up in the black sections of the decals.

In the meantime, the collection of parts and tools sitting at the Border are now on their way to Winnipeg and should be delivered sometime this coming week. Happy Dance for that!

David
Attached Thumbnails
WS No. 52 Sender Panel 26.JPG   WS No. 52 Sender Panel 24.JPG  
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  #392  
Old 11-10-20, 16:50
David Dunlop David Dunlop is offline
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Default Gloss Navy Grey Colour Match

If anyone is interested, here is the data for the paint I had colour matched to the 52-Set Sender panel once the discoloured varnish had been polished back.

The Paint Base:

RONA Anti-Rust Enamel, Exterior, Gloss Finish, Medium Base R25-512, 3.78 litres.

Tint Code:

Daylight Oz 48 96*

Q 2 31 1
V 15
X 1 16 1
Y 3 34


David


* The format should be three columns headed 'Oz', '48' and '96'. V is under 48. Y is under Oz and 48.
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  #393  
Old 12-10-20, 17:40
David Dunlop David Dunlop is offline
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Another sunny day this morning so I decided to take advantage of the Sender panel still sitting in the dining room to mask off the damaged side of the METER decal and touch it up. Naturally, that led to touching up a number of the decals where large chips in the black paint had happened, but did not involve any lettering.

The first three photos show the application of Postit Notes to mask the edges of the METER decal. I no longer trust any commercial painting tapes on the market for application to 75-year-old wireless panel equipment, having experienced catastrophic lifting of paint decades ago.

The paint I use for touching up the black decals is TESTORS Semi-Gloss Black.

The last photo shows the end result.

There are still a couple of small, rectangular decals on the panel that need to be masked and re-edged, but I will do those later. Then a couple of curved edges need to be sorted out, along with a few chips that have taken pieces of lettering with them. I have to think about these latter ones a bit, I would like to get a layer of luminous paint down first before attempting touch up of the surrounding black. That may prove an interesting challenge.

In the meantime, I like the direction this work is headed in.


David
Attached Thumbnails
WS No. 52 Sender Panel 27.JPG   WS No. 52 Sender Panel 28.JPG   WS No. 52 Sender Panel 29.JPG   WS No. 52 Sender Panel 30.JPG  
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  #394  
Old 13-10-20, 18:29
David Dunlop David Dunlop is offline
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Turns out the nice sunny day today might be the last one for a few days, so I took advantage of it this morning and finished touching up the last of the fiddly bits on the black sections of the decals.

This leaves just two small chips on the MODE OF OPERATION and METER decals to deal with, where the damage involves the luminous lettering.

There is also a small blob of something black that has fallen on the lower right edge of the PA LOADING decal, overlapping a letter. I have decided to leave that spot as is since I am not sure what it is, or what sort of changes it may have effected to the actual decal. I simply don’t want to may an annoying thing much worse, trying to make it better.

I will check the panel out under UV light this coming weekend to see if anything else needs addressing with the decals.

David
Attached Thumbnails
WS No. 52 Sender Panel 31.JPG  
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  #395  
Old 13-10-20, 23:53
James D Teel II James D Teel II is offline
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I love it.
__________________
V/R

James D. Teel II
Edmond, Oklahoma
Retired Police Sergeant/Bomb Tech
1943 Willys MB/ITM jeep
1942 SS Cars No1Mk1 LtWt trailer
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  #396  
Old 17-10-20, 19:55
David Dunlop David Dunlop is offline
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Default IRONS, Soldering, Electric 12 Volt, 100W No. C1 ZA/CAN 4778

It has taken about a year and a half of research and searching to find this particular piece of the 52-Set Tool Kit. It was one of the 14 packages I got home this past week.

This particular soldering iron was made by Drake in the USA. It's origin was the Drake Model 325-100, 110 Volt AC soldering iron which came out sometime in the 1930's. It would have had a black lacquer wooden handle and an asbestos black power cord with a tracer woven into it.The cord was 5-1/2 feet long.

The 12 Volt DC model had a 7-1/2 foot long cord with a pair of Mueller 24A Battery Clips at the end of a 6 inch open section of the cord. The soldering iron I finally found was an early 120 Volt AC model with a natural lacquered wooden handle with the same turnings. I can source the correct cable and Mueller Clips to bring this one in line with what it's DC counterpart would have looked like. The odds of finding a limited issue 12 Volt DC soldering iron are pretty remote these days.

David
Attached Thumbnails
WS No. 52 IRONS, Soldering.JPG  

Last edited by David Dunlop; 17-10-20 at 22:00.
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  #397  
Old 17-10-20, 20:36
David Dunlop David Dunlop is offline
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Default KEYS, Bristo, Set No.'s 6, 8 and 10

I was surprised at how small these keys are in real life. I am glad they fit in a small envelope as they would be very hard to find at the bottom of the Tool Box rattling around loose in an emergency.

The No. 6 is a four spline key while the two larger ones are 6-spline.

David
Attached Thumbnails
WS No. 52 KEYS, Bristo, Set.JPG  
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  #398  
Old 17-10-20, 20:50
David Dunlop David Dunlop is offline
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Default MAINSPRINGS, Cowl Fastener ZA/CAN 4713

These are the receptacles into which the Airloc Studs for the upper panel of the 52-Set Receivers lock. Countersunk, tubular rivets are used to hold them in place in those two locations.

These fasteners are also used in the top and side rails of the Carriers No. 4 ( four in each location) to which the Coil, Aerial Tuning Box is fitted. In these two locations the fasteners are spot welded in place and would be very tough to replace.

The right side fastener on one of my receivers is broken and needs to be replaced and I was having a hard time finding the receptacles. Finally, the light bulb lit with regards to the word 'Cowl' and I started searching on vintage aircraft restoration sites. Bingo! there they were, and still being referenced by their Airloc Stock Number 99833P-130.

No luck yet finding the replacement pins needed for the Airloc studs themselves, or the equivalent for the Shakeproof Cowl Fasteners. Critical bits as the pins cannot be reused once removed from a stud.

David
Attached Thumbnails
WS No. 52 MAINSPRINGS, Cowl Fastener.JPG  
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  #399  
Old 17-10-20, 21:02
David Dunlop David Dunlop is offline
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Default MUELLER No. 21A 50-Amp Battery Clips

These big boys ( 4 inches long) are used on a number of battery and ground connectors for the 52-Set. Typically, an end of the connector in question has a heavy ring terminal lug soldered to it and the lug in turn is screwed onto the end of the Mueller Clip.

I picked these up to be sure I had them down the road to fabricate replica cables.

I find it strange that these heavy duty clips are used for battery and ground cables but the smaller (3-inch) No. 24A Mueller Clip, rated at only 25-Amps, is used on the 12-Volt Soldering Iron cable. Need to find a couple of those No. 24A's now as well.

David
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WS No. 52 Mueller No. 21A Clips.JPG  
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  #400  
Old 18-10-20, 18:06
David Dunlop David Dunlop is offline
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Way back in Post #313, I put up a photograph of a 3.8 litre Mason jar, noting it was a recently obtained part for this project.

Well here is another related set of pieces; 12 solid Zinc electrode plates. A third critical bit is a 6/12 Volt DC, 2 Amp Trickle Charger I have had at hand for a long time. I am going to delve into the interesting world of small scale, home electroplating. Two more simple items need to be picked up; vinegar and salt.

Most wartime metal hardware and wireless chassis parts were plated. The commonest two plating materials were cadmium and zinc. Nickel was a distant third. Cadmium is almost impossible to find these days, so I went with the zinc. There is really not a lot of difference between a cadmium and a zinc-coated part. On their own, you would likely have a 50/50 chance of a correct guess. Put the two plated parts side by side, however, and in most instances, the cadmium coating will show a more silver grey appearance next to the slightly darker tone of grey from the zinc coating.

I have several solid brass items that need to be plated to match what was originally used with the 52-Set. I now also have a lot of hardware and small metal fitting on the Sender that could do with being replated. The type of stuff modern plating shops are simply not interested in doing anymore, without charging an arm and a leg. After researching DIY plating, it seemed simple enough and will make for an interesting side trip in this project.

David
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Zinc Electrode Plates.JPG  
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  #401  
Old 18-10-20, 18:44
David Dunlop David Dunlop is offline
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Once I had found a supplier for the truss head and countersunk tubular rivets I needed to replace the damaged parts on the 52-Set, the next issue was finding an appropriate clinching tool to set the rivets, I ruled out the hand held, clinching sets requiring a hammer to clinch the rivets, Way too brutal! The way to go with clinching tubular rivets is by means of a slow and steady application of pressure until the proper closure is achieved.

A number of plier-like hand tools are out there but they all have limited reach and are expensive. The next option is really not much more than a modified C-Clamp. They can provide the slow steady pressure, but often lacked enough reach, were too wide, or the fixed handle got in the way. More important, the screw was typically not a precision thread, which allowed a lot of wobble in the tool.

While surfing the web one evening, I stumbled across a small company in the USA that specialized in the restoration of antique tin toys. The kind made between the 1880’s and the 1950’s. These toys use a lot of tubular rivets in their manufacture and this company had designed their own hand-clinching tool to get the quality they needed.

The main body of ¼-inch thick, tool grade steel. Both upper and lower screws are adjustable. The upper screw supports either a truss head or flat, countersunk rivet head. The lower, black screw is the clinching head. Something I had not thought of with the simple C-Clamp modified clinchers is the base of the C-Clamp, where the rivet head usually sits, ends up being so close to one side of the materials being riveted together, you cannot easily see if the rivet is properly seated. By making both ends of this tool adjustable, one can move the tool far enough away from the materials being worked on to clearly see how things are lining up. This company had done a limited production run of extra tools, the price was right, it had tremendous quality, so I bought one.

David
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Tubular Rivet Clinching Tool.JPG  
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  #402  
Old 18-10-20, 19:48
David Dunlop David Dunlop is offline
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Default More on Phosphor Luminous Paints

Up until now, the main focus as far as phosphor luminous paint went for the 52-Set project, has been the Neutral Green colour as used with all the information decals of the set.

Where it starts to get interesting with the 52-Set is with the Receiver and Sender dials and their related markings, along with the Handles No. 72. On the latter, the white lines for the Blue Frequency are Neutral Blue Luminous Paint and the white lines for the Red Frequency are Neutral Red Luminous Paint. Added to this are the Neutral Orange, Yellow, Green and Reds used on the tuning dials and related decals. It gets very colourful. Very quickly. A number of these dials were manufactured post war and are non-luminous, and the panels are usually marked as such with a white decal at the time of rebuild. And that is OK. Part of the sets history. But where they should glow, they should.

The challenge is finding phosphor luminous paints in the required colours in small enough quantities. One such company I found in the USA is ART ‘N GLOW with their website being: www.artnglow.com

They have the required Neutral Blue, Orange and Red available in stock. The tricky colour, it turns out, is the Neutral Yellow. The proper phosphors for it are apparently hard to come by. They advised I keep checking their site for availability and ordering when in stock.

The attached photo is slightly overexposed, but gives a good idea of what the blue, orange and red look like.

I will probably start this phase of restoration by refinishing a couple of the Handles No. 72. Both were coated in varnish for some strange reason and one is also badly chipped along the edges. They will get redone, original factory Gloss Navy Grey, with the red and blue indicator dots and correct Neutral coloured lines to match the rest of the Handles No. 72 on the set.

David
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Neutral BOR Phosphorluminous Paints.JPG  
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  #403  
Old 18-10-20, 21:24
David Dunlop David Dunlop is offline
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Default IRONS, Soldering, Electric 12 Volt, 100W No. C1 ZA/CAN 4778

I thought I would show how the soldering iron is stored in the Tool Box in relation to the small metal bracket for it and the wooden partition that serves as the handle rest, and also creates the storage pocket for the cord.


David
Attached Thumbnails
WS No. 52 Cdn, Box, Tools R.JPG  

Last edited by David Dunlop; 20-10-20 at 00:47.
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  #404  
Old 20-10-20, 00:46
David Dunlop David Dunlop is offline
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Default IRONS, Soldering, Electric 12 Volt, 100W No. C1 ZA/CAN 4778

Lacking any Instruction or Operating Manual information whatsoever for this tool at the moment, leaves me wondering if, and how well, it would have worked, if connected to a wireless battery? Would the current load of heating up the tip coil be detrimental to a wireless battery, or could that risk be negated if a chorehorse was charging the wireless battery system at the same time the soldering iron was being used?

Would the soldering iron have to have been connected to the battery directly, or could it simply be clipped to available +/- terminals somewhere on the wireless vehicle charging/power distribution system? Or could it even be clipped directly to terminals on a chorehorse, or larger, generator?

David
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  #405  
Old 20-10-20, 01:49
Chris Suslowicz Chris Suslowicz is offline
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Quote:
Originally Posted by David Dunlop View Post
Lacking any Instruction or Operating Manual information whatsoever for this tool at the moment, leaves me wondering if, and how well, it would have worked, if connected to a wireless battery? Would the current load of heating up the tip coil be detrimental to a wireless battery, or could that risk be negated if a chorehorse was charging the wireless battery system at the same time the soldering iron was being used?

Would the soldering iron have to have been connected to the battery directly, or could it simply be clipped to available +/- terminals somewhere on the wireless vehicle charging/power distribution system? Or could it even be clipped directly to terminals on a chorehorse, or larger, generator?

David
If it's a 100 or 125 watt iron, that's only 8 - 10 amps draw, which is not really going to bother a signals battery: for a 100/125 Amp hour pair that's only the 10-hour rate which is quite reasonable.

In terms of connections, it would be clipped to the nearest 12V supply terminals, if in a vehicle the set supply terminals would probably be the most convenient, otherwise a couple of batteries could be dragged into a suitable position to provide power for whatever repair was needed.

100 watts is a very serious iron by modern standards, so probably wouldn't be needed for long, and big enough to do fairly serious soldering jobs such as battery jumper cables, earth braids, etc. (Anything more than that would be a job for the Wireless Mechanics or R(C)EME.)

Chris.
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  #406  
Old 22-10-20, 19:00
David Dunlop David Dunlop is offline
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I started production of a 3.8 litre jar of Zinc Electroplating Solution this morning. It should be ready for the weekend in about 4 hours.

Surprisingly straightforward setup and the Cathode is bubbling merrily away as expected.

The final cleaning solution recommended for the parts to be plated after all dirt, oil and rust has been removed, is a mild solution of Hydrochloric Acid. Much easier these days to head down to the local building supply store and purchase a jug of Muriatic Acid. Same product, but a ‘commercial’ grade, as opposed to the much more expensive ‘laboratory’ grade stuff.

David
Attached Thumbnails
Zn Electroplating Solution 1.JPG   Zn Electroplating Solution 2.JPG  
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