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Re: 7077 Mic


 

It is looking like I¡¯ll need to do that. The current element fits but there are series capacitors and that tiny transformer. These components seem to be good (capacitors are dead-on).?

I was shocked to see all that stuff added in there (and with such poor workmanship).?

Just a straight element would simplify everything and I can rip all the other stuff out.?

73,

Steve Wedge, W1ES

Time flies like an arrow. Fruit flies like a banana.


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On Sun, Feb 2, 2025 at 18:15, KB9VY via groups.io <lcoblentz3@...> wrote:
I put the Heil element in mine. Works great now.

Larry - KB9VY

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On Sun, Feb 2, 2025 at 18:11, Steve Wedge, W1ES/4 via groups.io < w1es@...> wrote:
Hi, gang!

I went on to the 7238 Drake Pre-net this afternoon and strange things were happening.? I heard some noise in the speaker when the PTT was pressed and WB0IQK said that I sounded excessively tinny.? I was fortunate to have my $10 GE-branded Shure 444, which worked like a charm but, of course, I want to know what is wrong with the 7077, so I took it apart.

Oy, vey!? What a mess inside!? Someone had put in a couple of capacitors (low value) and what looks like a transformer.? It's all kludged in there, so I know this ain't no factory job!? Lots of lousy workmanship and electrical tape trying to hold things together!

The mic element I can't be sure if it's correct, though it looks like it all fits together like it should.? The mic element measures around 430 ohms on my Fluke 77.

Is this simply a case of the wrong element in this mic?? The TR7 manual specifies a high Z mic.? I am tempted to simply get a Heil element for high Z and being done with it.

If any of you have a 7077 mic, can you measure resistance across the mic element for me?? This should be from ground to pin 1 of the mic plug.

TNX & 73,

Steve Wedge, W1ES

Time flies like an arrow.? Fruit flies like a banana.

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