Drake PRN 1000
I found a nice little Drake PRN 1000 locally. Nice rich sound and looks good too. Only paid $100.00 for it. Nice add to my twins.
By
Donald Rusbult
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#56282
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Re: DR7 fitting partial success.
Good point on the resistor values. I had to increase them substantially for my blue display. 73 -Jim NU0C "Joe Pyles" <epyles@...> wrote:
By
Jim Shorney
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#56281
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Re: DR7 fitting partial success.
Multiplexed means that each of the seven segments of each display is connected to the same segment of all of the displays. The segments for a given number is turned on and then the correct digit is
By
Joe Pyles
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#56280
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Re: MN2000
Well if where talking tuners ! Ten Tec L tuner works but cost is high .
By
AC9PA <byroncordes@...>
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#56279
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Re: DR7 fitting partial success.
Strobing or multiplexing of LED displays is a common method of reducing parts count and average power consumption. Have a look at the schematic. Resistors R9077 through R9083 are the current limiting
By
Jim Shorney
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#56278
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Re: DR7 fitting partial success.
In my experience the only area of the DR7 that is prone to shorting is the left rear corner where a set on Moolex pins reside. It's possible to push it down too far. I solved that problem with some
By
Jim Shorney
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#56277
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Re: DR7 fitting partial success.
More likely it is a broken trace than anything else. The display board is a nasty bugger to unsolder. The LEDs are a standard off the shelf pinout, you could replace them if bad. Not that I am
By
Jim Shorney
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#56276
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Re: DR7 fitting partial success.
Thanks Joe By multiplexed do you mean the bank of resistors (I think 100k) going between the KHz segment and the Mhz? Will look at those as well. Kind Regards Mike G3ZCC
By
Mike Davidsohn G3ZCC
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#56275
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Re: MN2000
My Murch is green. But it's not a "B" model. Someone had butchered it with cheapo verniers that were worn out. I actually found a pair of period correct knobs molded in green plastic to restore it
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Jim Shorney
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#56274
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Re: DR7 fitting partial success.
Hi Gary Funnily enough I made a strip out of clear acrylic which I put on the shelf where the? bulb clips on. Also put one over the lower level cover and cut out holes for the wires etc. By bad foil
By
Mike Davidsohn G3ZCC
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#56273
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Re: MN2000
I ment the MN-4C, I don't know why I said the MN-2000C...... I've looked at the Murch tuners as well.
By
Billy Pickering
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#56272
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Re: DR7 fitting partial success.
Hi Jim Managed to repair one of the spare PTO's all fitted back and seems to be? working ok. Not putting the front back as I am changing the bulbs to blue LED's. Then to the DR7 will check through
By
Mike Davidsohn G3ZCC
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#56271
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Re: MN2000
I was just thinking the same thing. I have a Murch sitting atop my MN2700. And a second homebrew knockoff awaiting cleanup. Spent less money than a night on the town for both combined. 73 -Jim NU0C
By
Jim Shorney
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#56270
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Re: MN2000
Billy: An MN-2000C?? Never heard of this one and I thought I knew of all the Drakes including the commercial marine reserve gear.? There is an MN-4C for sure (have one) which looks like an MN-7, but
By
VE7PS
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#56269
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Re: DR7 fitting partial success.
I have 4 TR7As, one of them I purchased new and none of them have anything glued to the top of the PTO can. I also currently have 3 TR7s with serial numbers in the 9000s and none of them have any
By
Joe Pyles
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#56268
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Re: MN2000
Look for a Mutch UT-2000B (not the A). They go for short money and will load up the proverbial bedspring. 73, Dick, W1KSZ ________________________________ Sent: Sunday, March 21, 2021 9:16 AM To:
By
Dick
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#56267
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Re: MN2000
We have a huge hamfest coming up this next Saturday in Sevierville that I'm going to keep an eye out there and see what I can find. Thanks everyone.
By
Billy Pickering
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#56266
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Re: DR7 fitting partial success.
Interesting. I don't recall having seen this. Fish paper maybe? 73 -Jim NU0C "Gary Follett" <xntrick1948@...> wrote:
By
Jim Shorney
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#56265
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Re: MN2000
I've been looking at the MN-2700 but like said, it doesn't really match, would love to find an MN-2000C which is an MN-2700 in the 4 line colors which are a little harder to find. I do actually have a
By
Billy Pickering
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#56264
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Re: MN2000
I agree ?with Peter. ?In fact, I use my MN-2000 for 40 meter operation but use my MN-2700 for all other ?bands due to ?the wide matching range. ?Once you find the sweet spot for each band,
By
Evan
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#56263
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