WW 2 IFF transponder.

[lai...@wcoil.com]

I have a surplus WW 2 IFF transponder box that I picked up a couple of
years ago at one of the hamfests for under $10. In unused condition, very
nice with acorn tubes and a doorknob tube for the transmitter. I think it
operates on 433MHz. I had an another one of these I picked up when I was
in high school that had been partly gutted to make some type of ham
transceiver in the 1950s. It came with the CQ mag that had the mod article
in it. One interesting item was/ the bottom cover has 6 or 8 electrical
fittings for thermite? demolition charges so if the plane was going down
you hit the button before bailing out. The article said there was some
after war excitement because some of these units went into the surplus
channels with the demolition charges still in place!
Tim L.
My unit is just a rather uninteresting black box, the controls were
somewhere else.

[JohnK]

One of the early installations in Brit a/c had the on/off switch up behind
the pilot's head. He had gloves too ! And, guess what? The destruct switch
was just there too and not shrouded. Many IFF lost through accidental BOOM!
Hard to believe the design [even though they were obviously rushed].

John K.

[PS... any Pics?]

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[lai...@wcoil.com]

Hi, I don't have any pictures. I will try to do some digging tomorrow and
take some pictures to post. Though a little off topic. Maybe I will
throw in some shots of some nixie test equipment to get more on topic.
Tim L

[lai...@wcoil.com]

Well I went looking and it wasn't where I thought it was??? Then on top of
that the phone battery died. I will keep looking around. Tim L.

[John Rehwinkel]

Tim writes:

>> Hi, I don't have any pictures. I will try to do some digging tomorrow and
>> take some pictures to post. Though a little off topic. Maybe I will
>> throw in some shots of some nixie test equipment to get more on topic.

> Well I went looking and it wasn't where I thought it was??? Then on top of
> that the phone battery died. I will keep looking around.

Did you find any nixie test equipment? We'd love to see pictures of that!

- John