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Author Topic: ISO -Heathkit RX-1 Mohawk.  (Read 4954 times)
K0GWA
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Posts: 4




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« on: August 12, 2017, 07:29:57 PM »


Looking for a Heathkit RX-1 receiver to mate with my Heathkit Apache (TX-1) and SB-10 sideband adapter.

Let me know if you have anything of interest.

Regards,
Gary
K0GWA

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K1YTG
Member

Posts: 451




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« Reply #1 on: August 13, 2017, 03:09:33 PM »

You can find articles on the RX-1,  I think the best was in Electric Radio.

The RX-1 needs major modification to make it work well.

Not considered a good design.

Best of luck   I do have one if you can not find one.  I also Have the HA-10 linear to match.

Norm
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K0GWA
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Posts: 4




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« Reply #2 on: August 15, 2017, 06:26:47 AM »

Hi Norm,

Thanks!.  I sent you a private message here on eham regarding your RX-1 and HA-10.

Gary
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W3RU
Member

Posts: 13




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« Reply #3 on: August 15, 2017, 12:30:37 PM »

You can find articles on the RX-1,  I think the best was in Electric Radio.

The RX-1 needs major modification to make it work well.

Not considered a good design.

Best of luck   I do have one if you can not find one.  I also Have the HA-10 linear to match.

Norm
of the day
Are any of the RX-1 mods applicable to the MR-1 or HR-20 "mobile" receivers?  Same for matching transmitters?

I am currently restoring one of each.

Jack  W3RU
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WA8UEG
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Posts: 755




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« Reply #4 on: August 16, 2017, 04:34:02 PM »

I kind of doubt it. I just completed restoring a MR-1 and the AC supply for it. I duplicated my novice station which was a DX-60 and Comanche but I cheated and added the HG-10.

My first real general station was a TX-1 & SB10, RX1 with the XC6 & XC2, Warrior, and Seneca. Yep, it was a big well built steel desk and you could grow old going from 6 CW to 20 SSB or DSB or whatever it was.Grin
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W3RU
Member

Posts: 13




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« Reply #5 on: August 16, 2017, 06:04:40 PM »

Nostalgic.  I built the TX-1, RX-1, SB-10, and Warrior during 1959/60, then made the horrible decision to sell ALL of the pieces for $!50 total in 1964 to raise money for the $379 SB-100.

I looked for several years to duplicate that setup, and came close enough to pull my wallet out in anticipation at Orlando a few years ago for a mint set, but a moment of "discretion" kicked in with respect to the weight of all this steel, and we "settled" for the era MT-1 and MR-1 with a UT-1 instead at a later hamfest.

I still look at the TX/RX-1 ads and hamfest offerings longingly - gets in one's blood, I guess.

I never had the Seneca, but I am currently restoring an already nice HX-30 and looking for an HA-20.

Jack  W3RU
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K1YTG
Member

Posts: 451




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« Reply #6 on: August 16, 2017, 08:31:31 PM »

Heavy units to ship from Ca to MN. 

The HA-10 is so heavy I can not lift it alone.  It would destroy a cardboard box.

Might go OK if transformers are removed. 

Norm
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HAMHOCK75
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Posts: 434




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« Reply #7 on: August 16, 2017, 10:36:12 PM »

HA-10 is supposed to weigh in at 105 lbs. I am thankful for todays switching power supplies. A lot lighter and more efficient but more $ by the pound than the old boat anchors.
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WA8UEG
Member

Posts: 755




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« Reply #8 on: August 17, 2017, 12:45:09 PM »

Nostalgic.  I built the TX-1, RX-1, SB-10, and Warrior during 1959/60, then made the horrible decision to sell ALL of the pieces for $!50 total in 1964 to raise money for the $379 SB-100.

I looked for several years to duplicate that setup, and came close enough to pull my wallet out in anticipation at Orlando a few years ago for a mint set, but a moment of "discretion" kicked in with respect to the weight of all this steel, and we "settled" for the era MT-1 and MR-1 with a UT-1 instead at a later hamfest.

I still look at the TX/RX-1 ads and hamfest offerings longingly - gets in one's blood, I guess.

I never had the Seneca, but I am currently restoring an already nice HX-30 and looking for an HA-20.

Jack  W3RU

I sold the TX-1 and SB-10 and replaced them with the HX-10 and then the Seneca was sold and I upgraded to the HX-30. I used those until the T4XB/R4B/L4B came out and sold everything to purchase the new Drake Line. That's the station I wish I had never sold  Huh

I now have 3 stations a Harvey Wells TBS50 paired with a HQ-129X (50's), The MR-1 & DX60/HG-10 (60's) and my FTdx5000/AL1200. The Drake station would have filled in the 70's era!
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W3RU
Member

Posts: 13




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« Reply #9 on: August 17, 2017, 01:33:28 PM »

That Drake 4B line is favored by many over the 4C line - especially the receiver with it's included selectable IF filters and SS-free tube design in the RF and IF stages.  I had both combos over time, but decided to concentrate on Heathkit SB's instead.

My remaining "really heavy steel" is limited to an SX-101A and HT-32A - I recently sold off the 133# HT-33A due to difficulties in handling and servicing and advancing age.  It required my pickup truck backing up to the buyer's P'Up truck tailgate to tailgate for transfer from me to him!  I had to use a dolly and cobbled arrangement involving my auto jack to lift it into my truck at home for transport.  As much as I loved that desktop linear, I haven't missed it - yet.  Now, I have a "spare" 10-gauge dedicated 120 volt 30-amp service freed up!  I "de-converted" my SB-220 from 240 volt to 120 volt operation due to it's availability.

Jack  W3RU
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N3DT
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Posts: 1331




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« Reply #10 on: August 17, 2017, 03:22:59 PM »

I have a perfectly nice TX-1 and 2 SB-10 that both work, plus a spare SB-10 for parts. If anyone is interested make me an offer but I'm not giving it away yet. Everything is in good working order with all the correct tubes and no mods as far as I can tell. 125W out with 124ma Ip. Pictures available.
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AC5UP
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Posts: 4433




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« Reply #11 on: August 17, 2017, 03:44:44 PM »

For those of you who have forgotten what '73 Magazine was like when it was fun to read.......

http://www.nostalgickitscentral.com/heath/73-index/articles/HA-10%20Linear-5-62.pdf
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Brave Helios, wake up your steeds.  Bring the warmth the countryside needs...    
WA2CWA
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Posts: 485


WWW

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« Reply #12 on: August 17, 2017, 10:30:10 PM »

I have a perfectly nice TX-1 and 2 SB-10 that both work, plus a spare SB-10 for parts. If anyone is interested make me an offer but I'm not giving it away yet. Everything is in good working order with all the correct tubes and no mods as far as I can tell. 125W out with 124ma Ip. Pictures available.

"125W out with 124ma Ip"

That's hard to do with roughly 800 volts on the plates of the 6146's. (P=EI)

Pete, wa2cwa
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K0GWA
Member

Posts: 4




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« Reply #13 on: August 18, 2017, 06:19:06 AM »

Heavy units to ship from Ca to MN. 

The HA-10 is so heavy I can not lift it alone.  It would destroy a cardboard box.

Might go OK if transformers are removed. 

Norm

I totally understand.   I received an SP-600 a while back and it was a pain getting out of the box.   


I would be interested in the RX-1.  Let me know if you are interested in getting rid of it,  maybe post some pictures.
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W8RXL
Member

Posts: 61




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« Reply #14 on: August 18, 2017, 09:05:52 AM »

I wonder how many use the SB-10 on the air?
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