1MC Schematics???

[shoot-kill-win]

[quote]Speaking of radar, our set looks like it may be '50's vintage - it still has to be tuned like an old tube radio, but it looks newer and smaller. Once we get the switch board energized, I'll tickle their ear about getting the radar/motor set working... if it needs any work. It would be cool to track cars going up and down the highway. [quote]

I sent Rick the Cobia's radar specifications because they have SD and other radar working, and are able to pick up ships in the harbor there. Hopefully Rick still has the specs on his email. If not let me know and I will look them up again and send them to you.

[M. Sarsfield]

The SD may be the same, but the SJ radar is definitely post war.

I looked at Cobia's website and they believe that they have the oldest operational SJ-1 radar set in existence. Here's a link with pictures and details... http://www.usscobia.com/sj-1.html. Our radar looks nothing like this. It's a single box with only a PPI display, tuning knobs, range counter, etc.

We need to find out the model number of the Batfish SJ radar and hope that someone still has a manual and blue prints for it. It looks like it's much easier to operate than the old WWII units.

[shoot-kill-win]

Those blueprints might be with all the other one in the museum. My guess is they would have put those with the original ones when it was still a training vessel in order for the radar men to understand how it worked. There are alot of blueprints, so it will take a while to look through them all.

[M. Sarsfield]

You're probably right. This will be interesting.

[shoot-kill-win]

I wish I could be there for that meeting, im dying to get back down to the Batfish and do some work to improve her. I miss that diesel smell.

[M. Sarsfield]

My navy dungarees still smell like her from our reenactment weekend in early Dec. I should start selling that smell as a car air freshner.

[shoot-kill-win]

Yes you should, I would definately buy it.

[M. Sarsfield]

I took a lots of pictures of the Batfish's 1MC/7MC, alarm, and switch board circuits. All I can say it... yeeesh.... The equipment needs an overall, to say the least. Anybody have any ideas or leads on who would be a good source for repairing old equipment like this?

I plan on posting the pictures with comments on a website in the next day or so. I'll post the link here when it's up.

[AVGWarhawk]

Yeah, it can get a bit scary looking at over 60 years of dust and build up. Saddened to say most who understand the old methods of getting electricity from point A to point B without blowing up the place have passed on. But, there are some out there that relish these old boards. Need to search.

Post those pics. I'm interesting in see what you are looking at.

[shoot-kill-win]

None of the volunteers can? Were any of the Ham radio operators there today? because I think alot of them are good at electronics. But let me see the pictures, and I will see if anyone knows.

[M. Sarsfield]

As savvy as Rick, Derrick, and Vaughn (sp?) are with electronics, it's still a lot of work. It's not so much figuring out what is routed where (surprisingly, I didn't notice many mods to the 1MC system, except for wires cut in a few places). The bigger issue at hand is determining if the equipment is capable and safe to run. Of course the slender, shiny box that looks like a telephone exchange has a number of wires cut, but other wires are still attached to the same terminals. I don't know if it could run as is or not. Mainly, the signal generator on the left and the upper Voltage Amplifier are missing tubes, which should be easy to find. My opinion of the wiring is poor, but it is asbestos wiring and we might be able to leave it as is, since it will never catch fire.

I need AVG Warhawk to forward this link below to his electrical gurus and give us any advice or war stories of their similar experiences...

http://www.352nd-mlha.com/Batfish%201MC/index.html

[AVGWarhawk]

I posted the picture link at the Torsk forums. Let see what it brings.

[M. Sarsfield]

Thanks.

I was doing some more thinking about the cut wires and the diving alarm. You'll notice that the diving alarm contactor has two cables that used to come out of it. According to the manual, one cable went into the signal generator(s) and the other bypasses the 1MC/7MC system completely and operates the H-9 diving horns found in almost every compartment - I have yet to see a single horn on the Batfish, though and if the diving gauges were stolen from her when it was being shipped up river, the horns may have grown legs and walked off, too.

What I don't know is where the junction box is that the diving alarm contactor connects to in order to operate the diving horns directly. Any advice on this would help us a lot, as well. We could probably get the horns running long before the 1MC comes back online.

Currently with the diving and collision alarms disconnected from the signal generators, I think the system could still operate as a PA and communication center. One of the voice amplifiers is completely intact as far as tubes go. A few fuses are missing behind the control panel up top, but that is easily fixable. I think they may have been removed when some of the alarms and one of the signal gnerators were diconnected. Whomever cut this stuff definitely had a method to their madness.

[AVGWarhawk]

Here are some responses from the Torsk crew. It ain't pretty

http://www.torskphotoguy.com/bbs/viewtopic.php?t=321


As I stated before, the old wiring and tubes can be one huge hazard.

[shoot-kill-win]

No those responses arent very encouraging. I will check and see if my grandpa knows anyone who can fix it seeing that he lives about 30 miutes away from the Batfish. However it may be pointless based on what those Torsk guys said.