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Author Topic: Tube radio  (Read 7885 times)

NWARadio

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Tube radio
« on: April 01, 2014, 06:39:47 PM »
Hopefully soon Ill be talking to some of you on my new/old Drake radio. Its a 4 line. The antenna matching network isnt in the pic but I have it. Just need to do a little work on the mic and call a fellow ham down around OKC to help me learn the transmitter. Anybody else have a tube radio?

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So long, and thanks for all the fish

Archangel320420

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Re: Tube radio
« Reply #1 on: April 01, 2014, 06:46:24 PM »
I have a TR-4C in need of a little tender lov'n care, but could have it operational in about 1/2 hour of work. I own an L4B that has never been lit up! All bought new in 1977 or so. The Drake line is wonderful equipment. I would not be ashamed to use Drake gear and be darn proud to own such gear, just like I love my Dad's Marlin 30/30 more than I do most of my other (modern)firearms.

 Have fun. Terry

NWARadio

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Re: Tube radio
« Reply #2 on: April 01, 2014, 06:47:06 PM »
How much is that amp worth to you?

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cockpitbob

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Re: Tube radio
« Reply #3 on: April 01, 2014, 08:04:40 PM »
I have a Heathkit HW101 (100W all mode, all HF) that someone gave me.  It hasn't run in so many years the rubber drive belts are rock hard.  Some day when my leisure time reappears I'm going to bring it back to life.

KK0G

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Re: Tube radio
« Reply #4 on: April 01, 2014, 08:17:29 PM »
What are tubes? 8)
"Those who would give up essential liberty to purchase temporary safety, deserve neither liberty nor safety" - Benjamin Franklin

KK0G

cockpitbob

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Re: Tube radio
« Reply #5 on: April 01, 2014, 08:28:05 PM »
What are tubes? 8)
If you know transistors, just think of tubes as glow-FETs.  Or, instead of solid-state devices they are hollow-state devices :o

KK0G

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Re: Tube radio
« Reply #6 on: April 01, 2014, 11:45:07 PM »
What are tubes? 8)
If you know transistors, just think of tubes as glow-FETs.  Or, instead of solid-state devices they are hollow-state devices :o
Oh I see. So they're what the pioneers used for transistors? I assume they're hollow to allow the steam from the boiler to flow through them? ;D

In my experience, glowing FET's are usually accompanied by smoke.......... bad ju ju. 8)
"Those who would give up essential liberty to purchase temporary safety, deserve neither liberty nor safety" - Benjamin Franklin

KK0G

Archangel320420

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Re: Tube radio
« Reply #7 on: April 02, 2014, 12:40:18 AM »
Gosh NWAR. I have not thought of selling the L4B. Let me think on it.

Jim Boswell

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Re: Tube radio
« Reply #8 on: April 02, 2014, 02:36:34 PM »
Glow-Fets?  Very Funny!

I have a Yasue FT-101ZD mark3. Now that is a RADIO. Neat thing about the FT-101ZD, they used 6146 tubes instead of the old TV sweep tubes, that makes that radio the king of the FT-101's. In years past I used a Kenwood TS-830S and that is also a great radio. All of my RF amps use 572 tubes. When I convert my radio shack to solar power I will have to use the solid state amp. The system will not not have the capacity to use AC power amps. 73'S  KA5SIW

vwflyer

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Re: Tube radio
« Reply #9 on: April 02, 2014, 08:43:21 PM »
I've got a Collins KMW-2 that used to be my grandpa's. It was supposedly considered a mobile rig. I have an AC power supply with it but I've been looking for a DC one so I can use it after a blackout. They don't seem to be that pricy. Does anybody have any educated opinions on how these old all-tube rigs would fare in the event of an EMP assuming the rig was unplugged from antenna and power?

John Galt

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Re: Tube radio
« Reply #10 on: April 02, 2014, 08:46:29 PM »
I remember as a little phart living in Cedar Rapids, Iowa a bunch of the neighbors working for Collins Radio. 

Life has come full circle!

KK0G

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Re: Tube radio
« Reply #11 on: April 02, 2014, 09:25:59 PM »
Does anybody have any educated opinions on how these old all-tube rigs would fare in the event of an EMP assuming the rig was unplugged from antenna and power?
I imagine they would fare pretty well being defunct of semiconductors. Now keeping them powered up with their massive appetite for electrons might be a significant problem owing to the lack of any infrastructure following an EMP.
"Those who would give up essential liberty to purchase temporary safety, deserve neither liberty nor safety" - Benjamin Franklin

KK0G

gil

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Re: Tube radio
« Reply #12 on: April 02, 2014, 09:35:45 PM »
I have a Gonset Communicator III, 6m AM that needs a little TLC... And an Ameco AC-1 kit to rebuild..

Gil.

Archangel320420

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Re: Tube radio
« Reply #13 on: April 03, 2014, 03:19:34 AM »
Like KK0G stated, the tube rigs will suffer nothing in an EMP event. My TR4C Drake has a couple of transistors that would fail, but if the KWM-2 has no solid state devices you will be good to go after the mushroom clouds clear. You will need serious power to operate the beastie.

vwflyer

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Re: Tube radio
« Reply #14 on: April 03, 2014, 03:36:47 AM »
Yes, I'd like to get the DC power supply and measure how much power it actually consumes with that. I figure it's substantial because I can use it as a heater for my office. I'm hoping that one marine battery and solar panel would be sufficient for about an hour per day, enough for a sked.

Radio Preppers

Re: Tube radio
« Reply #14 on: April 03, 2014, 03:36:47 AM »