วีดีโอ

Brings back lots of memories!! ET2 vet USN

Radio was designed for 225-400, you'd have to modify it AND add some crystals to get it to 220. I was a UHF Comm tech (ET) when I served on USS Ranger, we were probably the last ship in the US fleet to use the URC-9 / SRC-20 radio system and I got to know them VERY well. If you FOLLOWED THE MANUAL (it was scary, a well-written manual for the military!), and used the procedure it gave for aligning the radio, it worked WELL. 16 watt output rating, we'd regularly see 20-22 watts OR MORE across the band after a "by the book" alignment with fairly fresh tubes. Might have helped that a carrier was big enough to reduce the vibration issues.

The reperforator sounds like that was what was recorded by Philadelphia all-news station KYW 1060 as used from the late 1960's up to 2020.

Night of Nights is put on by the Maritime Radio Historical Society yearly as a celebration of the final day of commercial CW operation in the United States. The final day was July 12th, 1999 which is why this happens on July 12th. This was printed from 8427khz. Http://radiomarine.org

Served in US Coast Guard 1970-1974 as Radioman. We had these "beast" on board (USCGC Chatauqua) and used them for TTY and CW. Also same antenna tunner and Recivers.

See how the type is fainter at the bottom than the top, you can fix that in 2 minutes, there is a small acentric right on the type box, that changes the angle of it sticking the paper.

Got to love the model 28 page printer sound, looks like yours needs a bit of adjustments, back in the day (early 80's) I could strip a page printer down, service it and put it back together. All you have to do to get it printing evenly (virtically is to adjust the type box orientation a bit. Don't even have to remove it from the case to do it.. All your gear is from when I was a Navy comms tech, I've done courses on the 23V and the SRV, your shack looks like my old comcen. Yes, just tweek that type box a bit, the it will be perfect.

Tuned many in my Navy Days during Vietnam, 7th fleet used mainly for aircraft communication. The tuning fins were affected by temperature and vibration, always kept me busy. Became proficient in keeping the gear up. Yes and the SRC-20

Takes me back to my teletype maintenance days in the USAF, early 1970s.

I have recently purchased a old radio model number AN/SRC-9 i am trying to find some information on it but cannot find any, please let me know if yall know of anything.

I believe my dad would’ve used this kind of equipment. He was in communications, radio, teletype repair. He served mid 1950s-late 70s.

Awesome 😊

I use a Teletype model 28KSR and a HAL ST-6000 for my RTTY fun

Excellent!

I was model 28 teletype repair and maintenance. That KSR sounded very familiar. You're whole shack looks familiar. I used to maintain tech control too. Old memories, thanks!!! Use to be CTM1 Martin

That's fantastic! 73 de W8HRO

Good job

I am curious about preforming alignments on URT23s. Are you able to provide insight into signal injection for a USB/ LSB aignment I’m assuming J5 for USB. Can provide further specifics if required.

Great channel you got . 73 from Sweden

Those things are a monster. Perfectly capable of melting a N type connector..ask me how I know :)

That typewriter got the devil in it! 😂😂😂

I love seeing these video's that were essentially my office back in the day, as a Navy communications tech. I could strip the main shaft out of one of those model 28 page printers in under five minutes. I had the best job.

AN/SRC-21 is not the same as the AN/URC-9. The '21 included the Radio Set Control C-3866; the URC-9 had only the cabinet, RT-581 and PP-2702.

We also had 1 whiskey 3 and I did nothing but pms on it. The Amp you are talking about is the URT 23 I believe and the antenna coupler war the sra 49 or src 49 maybe. The phone dial is for remote operation and vox capability I believe. I found a bad diode in the diode Bridge of the power supply that ohmed good but would not rectify loaded. We were in port and while I was on leave a chief from mo29 from treasure island failed to find it and I got it with the same com officer over my shoulder, again impressive. If those crybabies didn't like bending the caps or taching th motor(better be 400hz for supply), try tuning that coupler... we would tune to the ends of the frequency range and monitor comms for short secure communication.

I can assure you we used those hunks of shit through 1984. During an exercise all 4 went down because the radiomen did pms after I tuned them; I got em up as fast as I could carry em to the shop with the com officer over my shoulder; impressive, like my Johnson. I was really good on those babies, didn't know very many that could hang on em. When I came aboard, the e6 ordered a case of PA tubes cause they couldn't tune em. If the Ukrainians are using em, sign me up!

Former Navy ET (SPS-49 Radar) I want all my emails to come in like this now

Repaired those in the navy. Watched a guy on Westpac almost kill himself working on the pa section. We had 4 on one tuner coupler to a long wire feed from helix from the #1 transmitter room. LPH-3.

man that fan noise takes me back, we had 4 URT-23's in our transmitter room, it was bliss when ever we had them turned off.

I worked Voice-Radio and Radio-Teletype in the Coast Guard back in 1976 on the island of Iwo Jima. We used the AN-URT23 transmitters for this. Amazing equipment. Love to have a clone of what I used to use back then.

hola ,tienes informacion del Harris RF-110D

"100 watt heaviests on the planet"😅 agree, but the rf 124 has his own league

Looks like fun, so much fun that I still remember putting ends on a 32 pair cable run, 55 years ago.

Put some damn audio in your videos, so that we can hear what you’re saying!!!

I remember as a lad my elmer had several of these RTTY terminals (repurposed PMG office equipment). He also had an amateur TV station.....awesome, thanks for sharing.

Nice sound

This was standard equipment on Sturgeon Class attack boats in the 70’s and 80’s

You shack used to be 'my office' in the 80's as an Australian Navy "ETC" (electronics technical communications), the transmitter room on the HMAS Swan has 5 23v (c or d), 827 exciters and 4 or 5 SRC-21's with the amplifier (with the servo autotuned cavities). We also used R-1051 for Rx. For the HF we used to use an ATU (AN-URC-38 ??) that were very good. Also I have a lot of experience with Model 28 TTY maintenance and repair, we used to use exactly what you have there in your TD heads, reperfs and the KSR. On land bases we also used a lot of ASR's. Even your patch panels bring back memories... Thanks for the tour.. (ex VK1DRL)

I believe the pre-selector can be changed to a post-selector. If you unscrew the pre-selector plate on the front, you’ll find the label for a post-selector. Just flip it over and you’ll find the label for post-selector. Inside the unit you’ll find a rather large black knob near the front of the unit. Moving this knob to the opposite position will complete the change from a pre to a post selector. Hope this helps.

Great setup, a dream shack for an old ET or radioman turned ham✋73's🎙 KD9OAM Tonkin Gulf Yacht Club Member 1968

Are you going to use the RF-601 coupler? I've got the controller but I need the actual remote coupler, so if you want to get rid of it, LMK.

Very interesting. Happy I found this channel. I was not in the military, however spent a few years with Sunair Electronics working with their HF equipment for Army, Navy and Marines. Hope to get a look inside the antenna tuner. 73's KX4IQ

I worked it.... RM3 USS Mt. Whtney (LCC-20) 74-77

My last assignment before I left Harris in 1984 was final acceptance testing of these transmitters. I would tune them up and test them, then put them in the heat closet for 24 hours. Assuming they passed the heat test, one final go-over to verify specs and out they go. Had a 110 try to kill me one night when the RF cage interlock failed and I took plate voltage through a finger and out the heel of one hand. Also tested the 601s, affectionately known in the plant as the "baby coffins." I also pre-tuned the output filter assemblies (the "tank") and the driver filter assemblies.

Great video Dan, thanks.

The RF-551A Pre-selector was sometimes put between the exiter output and the amplifier input. It helped to reduce unwanted splatter in sites that had multiple rigs on HF simultaneously. Your stack may well have come from such a site. If you open the preselector, don't touch anything; it's mechanically complicated and difficult to reassemble in the field. There may be no one left at Harris who can re-build it. I am a 24-year employee of the manufacturer in Rochester, New York.

This system was a "driver" stage for my much larger TXmitters. But, this looks like a 131 exciter. I was using the newer 1310. Otherwise, same same.

wonderfull in Brasil possible to transformer mw change 80 m .Fixing other bobine.

Adjustment of final transformer contact position done in the driver transformer assembly.

Dang, I was wanting to see the innards.

hello from 35 CT 249 from Austria,73 and the 55