The Yaesu Station sounds pretty cool. Post some pictures when it's all together. I used to run 5 watts with the old GRC-9 military rig and it did pretty well on 75.Quote:
Originally Posted by N8YX
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The Yaesu Station sounds pretty cool. Post some pictures when it's all together. I used to run 5 watts with the old GRC-9 military rig and it did pretty well on 75.Quote:
Originally Posted by N8YX
It's all cleaned up and in proper order now - transmitter, receiver, scope and speaker. Even made a bunch of connecting cables up yesterday. One thing left to do is to drag out an antenna tuner/switchbox so I can hook the slopers or the 10-12M vertical to the setup as desired; the one I have in mind (Kenwood AT-230) needs a slight modification to accommodate 3 coax-fed antennas plus a dummy load.. I wish Yaesu would have offered a matching 101-series tuner/switchbox and I'm tempted to reuse the SP-101 speaker cabinet to roll my own. Even have all the knobs in the parts stash to make it look "factory".Quote:
Originally Posted by w2amr
Will try to get the setup together this weekend and post a pic or two.
You said knobs, heh hehQuote:
Originally Posted by N8YX
those were the days.Quote:
Originally Posted by AF7XM
Just got it all done this weekend. The scope needs another CRT, as there's a bit of burn-in around the center. No big deal as I'm going to redesign the thing and add a panadapter module w/ new front panel controls.Quote:
Originally Posted by w2amr
The D-104 in the pic sounds very good on AM with this setup. I also fixed the speech processor and wired a Shure 450 to it. That mic can be used as-is with my Cubic Astros - same wiring on the plug. It's a good choice for "punchy" SSB.
Time to build a 101-style tuner for the station. I had the AT-230 on hand and converted it for 3 coaxial feeds plus a dummy load, rather than the 2 coax + 1 random wire arrangement it was shipped with. ANT1 and 2 are connected to a pair of Alpha Delta DX-SWL slopers at SE/SW orientation, and the ANT3 connection goes to the switchbox which routes my 10-11-12M vertical to the various rigs.
Attachment 14568
Nice looking set up. How much power does the Yaesu transmitter make on AM?Quote:
Originally Posted by N8YX
Depending on band, 10-15w carrier. Yaesu specifies no more than 150ma IC when transmitting AM and I usually run it a bit less than that.Quote:
Originally Posted by w2amr
What does it use in the final?Quote:
Originally Posted by N8YX
2x 6JS6C, just like the FT-101/B/E/F series.Quote:
Originally Posted by w2amr
There are modification articles wherein the PA is converted to a 6146/S2001 but that's reported to have its own set of problems.
Comes the day I cannot get tubes for the rig any longer, I plan on committing the ultimate heresy and converting the PA to solid state. Looking at the pre-driver/driver/PA section of the FT-301 (Yaesu's first solid state HF transceiver) one sees a number of similarities...including a gang-tuned Preselector/Drive control. I'm pretty sure I can engineer a swap.
These tubes are at or near full output and appear to be the originals. I don't beat on my gear and won't run them in full-carrier modes like FSK - my solid state rigs are a better choice for that. Thus, for low duty cycle voice and CW usage I suspect the PA devices will last for a while.
Regardless, I'm going to lay in a few spare sets. If I can find them for less than the price of the transmitter itself.
Very nice looking setup. Well done! I really like those rigs.
Checked the price of the YO-100 CRT? Just bought one for a repair/ $129.00. Done a YT video of the repair but not uploaded it yet.
Thought about doing an upgrade to a LCD screen.