Drake TR-3: Episode #1
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- Опубліковано 10 лют 2025
- Yes, it's high time that I worked on a Drake rig on my channel. And I've got this lovely TR-3 to be the first.
Web sites referenced in this video:
www.wb4hfn.com/
www.radiomuseu...
www.theheathki...
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Hello, I'm Py7aom, I live here in Brazil, I'm written on your channel, I'm also a technician, how do I get this board kit for my Drake that I'm restoring?
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Thanks for the reminder about safety caps...I rebuilt my AC-4 long ago before I worried about them and need to go back an replace those. The AC-4/MS-4 is from my original TR-4 station in 1969 and still powers my C-line purchased new in 1979. Look forward to your work on the TR-3, Mike WU2D rehabbed his and has a video series covering that work. 73 - Dino KLØS
I bought a TR3 (used) from Henry Radio back in the early 70's. I found its matching network wasn't very "forgiving" with less than perfect SWR. I ended up trading it in for a new Swan 350C and found the Swan's matching network was far superior to Drake's. The Drakes are beautiful instruments and I have reconstructed my novice station with a Drake 2NT which is an excellent CW transmitter. I've paired it up with a Hammarlund HQ110 which was also my novice receiver.
Any good suggestions to fix a bad filter in the soup can?
Pete N6QW
Well, I'm impressed with your PCB, but really feel you absolutely need to put a guard, so that someone that is say moving the unit, does not inadvertently slip and put their hands on that PCB which has many places whereby high-voltage is present!
Great job only wish i could get a printed board. I have a Galaxy I need to recap but don't have a way to make or get printed board. Also where did you source parts?
I designed the board in KiCAD and sourced them from jlcpcb. They are not that expensive to buy, but it can take up to 3 weeks to get them.
@levelupeelab you could probably offer that as a kit, it seems there could be demand?
Very nice! Does that bias-adjust pot have a dead spot?
I didn't notice one but I will recheck.
Curious the differences from the DC-3 to DC-4 power supplies? And can the dc-3 be used to power a tr-4c? 73!
I think the AC-3 will work fine with all of the Drake transceivers and transmitters of that era. There are only small differences in design between the -3 and -4 power supplies.
@levelupeelab thanks for replying, does the same hold true for the DC variants? 73