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Re: Michigan Mighty Mite
Hi Casey, Coincidentally, I collect vintage transistors and have a couple of CK722s and lots of pinched tops from the 1950s.? As a child of the 1960s, I grew up in the discrete component transistor days and have never really gotten comfortable with integrated circuits.? Amongst the transistors in my collection are these 2N1143 transistors.? Two of these type were used in the beacon transmitter attached to the Echo 1 satellite from 1960.? I found the schematic of the beacon in an issue of 1961 RCA Review.? So one pile of parts on my workbench will be my attempt to recreate that beacon using two of my collection.?? 73, Brian On Tue, Feb 18, 2025 at 3:51?PM Casey KC9IH via <kc9ih=[email protected]> wrote:
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Re: Michigan Mighty Mite
My early Parts "inventory" was an occasional CK722, but typically 2N107's or 2N170's (and 1N34"s) (thanks to Allied Radio Mail Order). As I got older, my favorite Designs were all using 2N3053's. I don't think even I have any 2N2222"s here at all.?
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NOTE: For Decades I have wanted to try a 2N3055, in a TX, maybe on my next Build. It should be good for a few more mw output.?
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73 de CaseyK kc9ih/wd9gka?
Casey Nine International Harvester?
I like Red Tractors? |
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Re: FDIM Thursday Dinner
?Elsas Mexican Restaurant is great. We fo there every Wednesday evening as a tradition.
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AND for a great German style full meal The Amber Rose. They both are an easy drive from the hotel. Dave K8WPE PS Now I understand…… He who dies with the most toys has probably forgotten much what he has and why……. So true! On Feb 17, 2025, at 6:46?PM, Ron Eike via groups.io <ron.eike2@...> wrote: |
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Re: FDIM Thursday Dinner
开云体育Downtown Fairborn has many places to eat. NO crowds. I like? Giovanni’s. Had homemade Italian.?Ed AB8DF
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Re: FDIM Thursday Dinner
Texas Road House is in the center next door On Mon, Feb 17, 2025, 6:46?PM Ron Eike via <ron.eike2=[email protected]> wrote: Last year at FDIM I went to the bar at the hotel to get supper. There was only one waitress on duty, and after a 30 or more minute wait, I left for MacDonalds. There must be other places nearby. Does anyone have a suggestion? |
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Flying Pigs Walk for the Bacon Sprint This week!
开云体育Walk for the Bacon is a slow code sprint, speed limit is 13WPM max.? Please QRS if asked.20m WFTB runs on the third Wednesday and Thursday of every month. The Wednesday night sprint begins at 00:00Z Wednesday evening for 1 hour from 00:00Z to 01:00Z, then it continues Thursday night from 02:00Z to 03:00Z. All logging is done on the autologger. Evening of Wednesday February 19th at 00:00Z to 01:00Z on 20m 14061 Khz to 14065 Khz. Evening of Thursday February 20th at 02:00Z to 03:00Z on 20m 14061 Khz to 14065 Khz. WFTB Autologger is at: de KB9BVN Brian FP -57 -- 72 de KB9BVN |
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Re: Speaking of the MMM
Ed Thanks a million!? Please send it to editor@... I think this is a cool event hosted by the Michigan QRP Club. 73 On Mon, Feb 17, 2025, 12:13?PM Ed AB8DF via <ekwik=[email protected]> wrote:
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72 de KB9BVN |
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Speaking of the MMM
开云体育I would like to do an article on the Michigan Mity Mite for the QRP Quarterly, but unfortunately I will not be able to attend FDIM.So, could you guys send me pictures of the MMM's that were there, and who their builder is?? I can include those in the article. Thanks! de KB9BVN Brian Murrey -- 72 de KB9BVN |
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Re: Michigan Mighty Mite
A terminal strip - very old school. Using an analog meter to test it is karmically correct. Very nice build, not ugly at all. On Sun, Feb 16, 2025 at 4:31?PM Brian N4TRB via <brpjournalist=[email protected]> wrote:
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Re: What is the Michigan Mighty Mite revival?
开云体育Hi Doug,QRP-ARCI has this PDF available. 73 de KB9BVN Brian Murrey On 2/17/2025 1:08 AM, Doug Hendricks
via groups.io wrote:
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72 de KB9BVN |
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Re: Michigan Mighty Mite
Hi Brian, I don't know what's typical.? I'm using a 2N2222A FWIW.? I thought about putting in a transistor socket and trying every NPN transistor in my junk box.? Unfortunately, I'm lazy... bp On Sun, Feb 16, 2025 at 4:25?PM Brian KB9BVN via <kb9bvn=[email protected]> wrote:
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Re: Michigan Mighty Mite
开云体育WoW!? That's a great looking MMM!?Nice job.? Is 400mw typical?? I think my last one was maybe 320mw on 40m. de KB9BVN Brian On 2/16/2025 4:17 PM, Brian N4TRB via
groups.io wrote:
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72 de KB9BVN |
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Michigan Mighty Mite
I've accepted the challenge.? Here's my contribution to the MMM Revival. I'm not sure if this falls into the cute or the ugly category & glad it doesn't matter.? But that heat sink is definitely cute.? And the WW2 vintage FT-243 crystal is likely unique.? With 12 volts it's giving 0.4 watts.? I am very curious as to how that will compare with the dozens, maybe hundreds, of MMM rigs that show up at FDIM for the revival.? I'll bring a few QSL cards in the hope of making some MMM to MMM?contacts.?? This was fun. 73, Brian Brian R. Page, N4TRB Threads:? +1.678.427.1719 |
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FDIM Update
开云体育I have updated the registration list as of 2/15/25. Also we need to remind everyone that the block of rooms we had reserved for FDIM have sold out.? If you want to stay at the Fairborn Holdiay Inn (FDIM Central) you can call them periodically and see if they have had any cancellations.? Also a reminder, if you are participating in the TTL Transmitter Challenge, and need a kit, contact Rex Harper on the website to get yours ordered.? While there, be sure to check out all the cool kits Rex has available now.? FDIM is T minus 90 days and counting down!Many thanks to our prize sponsors! Also while at FDIM, why not take a few pictures and write a few lines about your experience and send it off to Mike Malone KD5KXF so he can include your write up in the July QRP Quarterly? Send articles to:? editor@... 73 de KB9BVN Brian Murrey QRP ARCI Volunteer -- 72 de KB9BVN |
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FDIM Hotel Rooms are Sold Out
开云体育Forward from David Cripe NM0S, President QRP-ARCIJust received word from the Holiday Inn that our block of rooms
has sold out.?
We recommend that anyone wishing to stay at the Holiday in for FDIM to check with them periodically in the chance there may be a cancellation that might free up a room. NM0S Electronics?
-- 72 de KB9BVN |
Brian N4TRB
Casey KC9IH
David Wilcox K8WPE
Buck K4IA
Brian KB9BVN
Shirley Dulcey KE1L