I am a 62 year old retired utility inspector, living in a paid-for, tiny wood frame home with my XYL (Carol) and two minpins (M.I.A. and Bambi). Carol and I are Christians and anti-communist "Florida crackers", (Carol was born in Arcadia.. Me, in Miami). We now live in Lehigh Acres, Florida, a large community in Lee County, just east of Fort Myers on the northern border of the Everglades.
This is our local club; http://www.fmarc.net/
This is me;
VFH/UHF/and HF digital rig is a Yaesu FT-857D all-mode, Bencher paddle via MFJ-464 Keyer, 100Watts max,no amp, into Cushcraft A13B2 "Boomer" 13 el yagi, G5RV variant, or Imax2000 verticle.
I use a Yaesu FT-840, HRD-Controlled, for 80m thru 10m VOICE modes with Heathkit SB-220 Amplifier, into 40M Delta-Loop @ 50ft.
My STBY radio is a mint Yaesu FT101E model, gifted to me by my bud, William/WI4E.
In the garage: Icom IC-7000, ldg tuner, into 40M dipole, V-58 vertical, 3 element 2M beam.
My old Dodge Ram pickup holds an Icom IC706MKIIG w/ LDG RT100 tuner into a Hustler on the bed rail, and a Comet dual-band whip on the roof..
I LOVE MY COUNTRY GIRL!!
Doesn't she look great? Especially with Carol standing in front of her? ;) Just kiding -- "She" isn't mine.
I QSL100%, card gets card... I also QSL all SWL reports 100%. I've never been interested in 'contests', and I'm not really into DXing for the sake of it anymore. But I'm always interested in meeting and making new friends and just plain old "rag-chewing" -- DX, or otherwise... So please say "hello" if you hear my weak station. Admittedly, I have been preocupied off-air repairing equipment of some fellow hams, so my "radio-time" has been spent in the garage lately, "Werkin on em as opposed to talkin on em." I may be LISTENING on 40M (mostly 7.188MHz) though.
I acquired a new toy for my last birthday. It worked perfectly when I purchased it, and until I tore it down .This amp, however, wasn't exactly "ready for prime time".
I reemphasize, it was fully operational as-purchased, and I'm 100% happy with the deal the seller and I made. It's pictured here before I kindof got carried away;
One of my many mental illnesses is, I can't leave things alone when I get them. I wanted to internally-inspect it, and evaluate it's overall condition before hooking it up. I'm glad I did, judging by what I found -- But oh, God, what have I done??!!!
Above; I've cleaned up the chassis a bit, re-faced the front in black. It still had the original paper 'lytic and the original single diode for the bias supply in-place! So I gave it a new cap and a full-wave bridge pack, only to rip all of that back out for another configuration later. I built and installed the Harbach RM220 metering board, and a Harbach Soft-Start module. It had a STBY toggle switch added at some point in it's long history, but I installed a NOS toggle switch from a TL992 because it matched better.
Below; In an effort to protect the tubes from vibration damage while cutting the chassis out for the new switch, I removed them. Upon inspection, I found the sockets to be badly pitted. The tubes, though still 100%, showed the result of base temperatures going above 200degrees C. I installed a new matched pair of RF Parts 3-500ZG's in new sockets.
Below; So here my birthday present sits, 'ripped limb-to-gut' on one of the benches. I also installed a W7RY QSK board and parts to populte same, to kick a pair of Jennings vacuum relays properly.
I found an interesting layout on N3COB (Glenn's) web page, that is basically the route I took with mine. I'd like to thank Glenn for his help and corespondence outlining his experiences, and the awesome schematic he emailed me!
There are new and interesting "finds" at every turn in this AMP!
ABOVE: I'll bet these are overlooked by many who replace their tubes, because I almost did myself -- I stuck them one at a time onto a 1/4" shaft, chucked it in my cordless drill, and cleaned them up with a brillo pad. That took care of the existing 'charcoal'. I then polished both using a soft rag and toothpaste and they came out better than new, in that they have a mirror finish on them now. That allows them to acheive a more complete contact than before. RF loves carbon paths, but we don't need a resistive one.
Above; The face is now unpluggable, two molex connectors, four corner screws, and it's in my lap!
Above; Just 5 wires left to hook up, but they're all supposed to be bias. I was extremely confused by those!! It took me a while to sort all the schemes out.
Above; The tube sockets are in and the grids have now been directly-grounded to the chassis, as opposed to that convoluted path through those resistor/cap thingies.. The old sockets cleaned-up fairly nice with a cotton swab dipped into some cleanser paste, chucked into a cordless drill, and polished -- Then, I threw them into a box with the tubes and shipped them to another Ham... I had sold the original tubes in the "Swapmeet" here on QRZ. The for sale post lasted all of 20 minutes! That fellow deserves those cleaned-up sockets for buying the tubes so fast.
I considered installing a thermal switch (like those found in coffee pots) to turn on a small auxillary fan mounted under the filament pins whenever maximum allowable pin temperature is exceeded. So far, the devices I tried was too large to physically-mount on a pin, or too hot of a trip temperature. I also tried a thermostat, but RF kept triggering it. If I find a solution, I will document how it was done. If you HAVE one, please let me know what you did.
COMPLETE! IT'S ALIVE!!!!
I have 1100WATTS from 100W drive on SSB! I'm happy. Someone asked about the finish on the case. It was painted with "VHT" "Wrinkle Plus", and bake-cured for one hour at 200F in Carol's oven -- she was not happy about that. This was a bit too late for MY rebuild project, as I came across it after I was well-into my rebuild. But the link below illustrates what may be an even better way to go on these amps. It fascinated me;
It's a bit more expensive overall, but it appears to be a very comprehensive approach to upgrading/protecting Heathkit and other amps, or for controlling homebrew designs. It takes care of many of the design issues these amps had.
The garage is more like a man-cave after the remodel, but I NEVER want to go through that ordeal again!
The tower failure after TS Debby, 2012.
Please PM me if you happen to find one that doesn't link as it should., and I can and WILL re-post it. For some unknown reason, Youtube has lost some of my videos, and their links would then go nowhere fast. I have them backed up. They can't delete those, can they? I don't know why that happens, but hey -- I'm retired..... I have all day to put them back! :)
FLORIDA'S WEATHER CAN BE A REAL DOWNER.
This is what T.S. Debby left me with;
And all I wanted to do was straighten-out a bent element!
These two pics are of my tower after a severe summer storm in July of 2011. I temporarilly had the guys off for a hazer-lengthening procedure that I hadn't quite completed when the storm hit. Lesson learned; NO antenna/tower work should be performed in the Summer here... PERIOD!! It's too hot snyhow.The antenna WAS a Comet beam.
A short GIF showing Florida in it's own orbit around the Sun as seen from the SOHO Spacecraft, which is located somewhere in God's County (around the Tennessee/ Carolinas area someplace no-doubt).
God must really want me to switch hobbies...
"Threes", Y'all... I hope to QSO soon. And remember to Keep your friends smiling -- Even the MEAN ones!!!
The original page template was designed by my good friend, WI4E, Willy -- Content, of course, is my fault. :) All outside images were in public domain. All my additional images can be considered public domain also.. I just ask that you use discretion and tact if you use them..
1970838 Last modified: 2015-05-17 11:30:27, 19369 bytes
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