RCA Victor 26BP - a Gift from Buzz1151 - Part 1

[@Buzz1151]

wow David..I'm glad I sent that radio to you, cause I would have given up trying to fix that! Congrats.....You now probably have the only RCA Victor 26BP radio in Australia! !😎 Great job getting that to work. At least whoever re-capped it used some good capacitors!. enjoyed the video and look forward to Part 2! cheers, 🍺🍺

[@DavidTipton101]

Hi Buzz, at first I considered dumping the idea of restoring it and lay low but... I took the bull by the horns and got stuck in. It's sitting on the shelf now as proud as punch. Thank you for sending it over Buzz. You may be right, it's a one off Aussie radio now 😅 Cheers and thanks Buzz 👍🍻

[@mrgunn2726]

Mr. Tipton, I drop everything to watch when one of your videos comes out. I eagerly await the next episode of this exciting project. Well done to you and Mr. Buzz.

[@DavidTipton101]

Thank you MrGunn 🙂

[@ScottHenion]

That metal-cased resistor is called a Candohm. They are a flat sheet (phenolic?), wrapped with resistance wire then wrapped with an insulator, something like fish paper. That then has the metal case bent around it. They fail often. Either the wire corrodes or the insulator breaks down. Here in this part of the US, they are usually bad as the high humidity kills them. That did not look bad so up to you if you want to replace. Nice work as always.

[@DavidTipton101]

Yes, come to think of it it is a Candohm resistor, I didn't think of that. We don't see them around here. Thanks Scott 👍🙂

[@daleburrell6273]

...don't you mean "MICA"...(?)

[@jaytitus902]

THE MOMENT. The absolute moment your vids come out, I am there.

[@DavidTipton101]

Oww thanks Jay 👍🙂

[@genestatler2514]

ME TOO!!!🤩

[@Donno308]

Hi David, Looks like Buzz is going to keep you busy for quite a while with this one! I suspect that getting it to work will be the easy part! Looking forward to the next one!

[@DavidTipton101]

Thanks Don. You may be right, making it work was the easy part, stay tuned 🙂

[@darkobrankovic-el7gm]

Sir, I have been watching Your vids for some time now, and I have to say You are an artist, beyond reproach. Greetings from Serbia

[@DavidTipton101]

Thanks darko, I'm glad you enjoy them 🙂

[@hestheMaster]

Some artists choose to work in acrylics, oils, watercolours or even sculptures but you David are the master of radio restorations, wherever they were made! Looking forward to part 2 of this restoration endeavour! Steve from Illinois, USA

[@DavidTipton101]

Thanks Steve, Haha... I should wear a smock while I'm working 😅

[@terryblackman6217]

Looking forward to seeing your next video. Good old Buzz. You meet the nicest people in radio land.

[@DavidTipton101]

I couldn't agree more Terry 👍🙂

[@Peugeot306]

I was on holidays in 🇬🇧 The plus is: I can now watch 2 David-video’s on 1 day! 🎉

[@DavidTipton101]

Haha.. a glutton for punishment there Paul. I trust your holiday was enjoyable 👍😊

[@1974UTuber]

I could tell Buzz hadn't touched the insides of that radio. The speaker didn't have Buzz sized finger holes in it 😂. You and Buzz are the 2 KZbin creators I drop everything to watch.

[@DavidTipton101]

Haha... that would have been a dead giveaway 1974UTuber 😅 Thanks, buzz is great 🙂

[@sheldonlatimer6688]

Once again you're so well at fixing any type of radio battery or electric I'm watching and waiting on your videos

[@DavidTipton101]

Thanks Sheldon 👍🙂

[@josephmagedanz4070]

Hi Dave, Thanks for another informative video. I always learn (or re-learn) something from watching you work. Thanks for sharing!

[@DavidTipton101]

You are very welcome Joseph, thank you for watching 🙂

[@kennethgibbons366]

Great to have you back David... really interesting and really looking forward to see the finished project with no rust in sight!

[@DavidTipton101]

Thanks Kenneth. I will keep the cabinet closed so there will be no rust in sight 😃🙂

[@Timothycan]

Amazing how those dial covers came out! Brilliant work all round. Well done!

[@DavidTipton101]

Thank you Timothy 🙂

[@craigb.4737]

Love your work. The re-organization of the components and replacement resistors really makes everything look way better sir. (High-in-Tight) :) "Current Through a Brick" = LOL!

[@DavidTipton101]

Thank you very much craig 🙂

[@chrismielke219]

Good work Dave!! Its awesome taking a radio from dead to working. Again nice work!!!!

[@DavidTipton101]

Thanks Chris 🙂

[@radio-ged4626]

Loved the Buzz style production. Looking forward to the next episode. That speaker sounds really crunchy.

[@DavidTipton101]

Thanks Radio-Ged, Buzz has a unique style 😅

[@electronicsoldandnew]

Good one Dave. You made my Friday again 😊 All that rust will make for some very impressive “before and after” footage. Good luck 🤞

[@DavidTipton101]

Hi Manuel, thanks. The battery carriers are a mess, stay tuned 😊

[@williammitchem8274]

All right, the 3 of you guys... a special day!!!

[@DavidTipton101]

Haha... yes, a bit of overlap there 😅

[@billnicholson2470]

Buzz is quite hoot for sure. Nice diagnosis David. Can't wait for the next one. 73 de KB7ICI.....Bill

[@DavidTipton101]

Thanks Bill. Buzz for president 😅

[@theprisonernumbersix996]

Vivement la suite , merci David pour la video. "Be Seeing You" 👌 N°6

[@DavidTipton101]

Suite vendredi, merci No6 🙂

[@bobpotter895]

Nice work Dave. I think the tidy up of the recap along with the resistor replacement stabilised the circuit significantly. I’m looking forward to the next part. Cheers Bob

[@DavidTipton101]

Yes, I agree, sorting out the previous work did wonders. Thanks Bob 😊

[@jeffreyhickman3871]

I saw this the other day, but didn't comment 😕 on it yet. Buzz 1151 is a FANTASTIC GUY!! He goes into painstaking work 👏 on his radios 📻. I always tell him to finish with two beers 🍻. When are ya coming up with part 2 to this? I REALLY 😊 want to see it. I hope the leaking batteries 🔋 aren't eating up your circuit boards. That's usually very bad 👎 news. Your friend, Jeff!!

[@DavidTipton101]

Hello Jeff. A Buzz fan as well, good for you. Part 2 next week, I will deal with the rust then 🙂

[@lyntonprescott3412]

I love Buzz's videos. Very informative funny and entertaining. He really is quite clever and has restored some beautiful radios. Good luck with this one David. Wish I could send my old Hallicrafters to you but the shipping costs would be horrendous! Lynton G4XCQ

[@DavidTipton101]

I concur, I get excited when I see a Buzz video come up... which is not easy at my age 😆 It would be an expensive exercise Lyndon. Thanks ! 😊

[@bofor3948]

Nice job so far Dave. Regularly watch you, Don, Manuel and of course Mr C. restoring grand old radios and hopefully improving my rusty skills. Haven't come across Buzz before so thanks for the pointer. Heading his way now to check him out. Bof (another Dave)

[@DavidTipton101]

Hello another Dave, thank you. I'm glad you added Buzz to your list, he is a good watch and now you have hundreds of Buzz's wacky adventures to catch up on 🙂

[@Antony_Jenner]

Hey Dave, I noticed the schematic showed the capacitor values for the IF cans 56pf. Old mate Shango would of loved that inclusion. Thanks for the video mate.

[@DavidTipton101]

Hi Antony, Shango would have been beside himself, unusual for sure and not the 'normal' 100pF either. Thanks Antony 🙂

[@Jan_Talcott_100]

I commend your courage! When you opened the box and I saw the radio, I turned and ran. But not you, you stood your ground and conquered the beast.😉 Great video as usual, always looking forward to your next video. Thank you.

[@DavidTipton101]

Hello Jan, I did run but edited that bit out 😅 Thanks Jan 🙂

[@billharris6886]

Hi Buzz and David, nice change of pace with the "Buzz & Dave Show" format! David, if you feel like diving in deeper, those 2 IF transformers need to be taken apart and the two 56pF caps replaced. As one of the many cost savings upgrades that went in over the years, the internal capacitors in these transformers use a simple sheet of mica that is painted with silver paint on both sides to yield a capacitor. Over time, the silver paint evaporates or corrodes away, causing decreased capacitance and lower Que. If new caps are installed, the transformer tuning will center up and gain will probably increase at least another 10 dB. With the RF amplifier stage, this radio should have excellent sensitivity when it is all tuned up.

[@DavidTipton101]

Hello Bill, I'm a great fan of Buzz's videos. That is interesting, I did consider dismantling the IF transformers but they did tune in and stay in adjustable range so I didn't mess with them. I wish I had now to see if the capacitors were the culprit after what you have told me. Thank you 🙂

[@billharris6886]

@@DavidTipton101 Yes Buzz has the most unique restoration videos. The first time I saw one of his videos, all his theatrics gave me the impression it wasn't serious. However, after seeing a few more of his videos, I was "blown away" by the severe problems he will tackle. Buzz likes it that way so it won't be so boring to watch. So, you get the obnoxious gnome and soundbites, 1930's background music, and the Buzz cinema as a bonus to keep things lively. Those IF transformers have very fine wire, making them fragile so, take your time if you decide to take one apart. I recommend replacing the caps with NP0 ceramics or dipped mica caps. If you have the space, it is easier to mount the new caps to the external transformer leads, versus installing the caps within the transformer.

[@michaelmiller641]

Thanks for that David. I look forward to the next episode!

[@DavidTipton101]

Thanks for watching Michael 👍🙂

[@alunjones4427]

Another good video David very interesting looking forward to part Two. Yes I always watch Buzz 1151 videos as well always entertaining and interesting.

[@DavidTipton101]

Thanks Alun 😊

[@OIE82]

Another interesting video. And "Thank You" for the "M" for kilo, information (22:40ish) . I had not heard (or seen) that before. But the clue for me in the future will be looking for things like R10 "4.7MEG" where R9 is "150M".

[@DavidTipton101]

Hi Odyssey, a trap for people like me new to the hobby. I'm glad it helped a few commenters 🙂

[@ThomVIA]

Great production!!!

[@DavidTipton101]

Thank you Tom 🙂

[@paulbennell3313]

That actually sounds suprisingly good. I know it's on the shop speaker so there will be less bass with the internal one but it tunes in strongly now and there's not much in the way of noise once it's on station. Looking forward to the next episode!

[@DavidTipton101]

Thanks Paul. It worked surprisingly well. The built in speaker will bring it down a notch 😊

[@paulbennell3313]

@@DavidTipton101 Oh no doubt but it should still be pretty good for the size of the radio.

[@knifeswitch5973]

Sooooooo good to see you back! Great episode with a radio from my other favorite channel. Thanks Dave!

[@DavidTipton101]

Thank you knifeswitch 🙂

[@stephengorin3059]

Great work on the RCA radio Dave. A few twist and turns with this one, but you worked through the problems. Being a AUS set and 115 volt set i hope youare going to install a small 240 / 115 volt power transformer. I would hate to see some one plug that set into our mains voltage. I look forward to part two.

[@DavidTipton101]

Thanks Stephen. I have retained the US two pin plug on the set so it shouldn't get plugged into an Oz outlet 🙂

[@theradiomechanic9625]

Hello David, so nice to find your video this morning. Grabbed a coffee and settled in. Those battery sets with the TRF front end are usually pretty good performers. They do however often have a little residual hum on AC due to the valves having directly heated cathodes. (The filament is the cathode) and running them on AC allows the filament to "modulate" the tube slightly. Instructions for these sets sometimes advised to try "reversing the plug", however running on your Isolation transformer removes any neutral reference. (likely wouldn't matter anyway) It also means that on battery operation these sets are "instant on". And in your example, it shows a 9 volt "A" battery which tells me the filaments are in series on battery and the string will draw 50 milliamps. Therefore "A" battery life will be pretty reasonable. Would be fun to see it on battery. Six "C" cells would give good performance for the filaments, and ten 9 volts batteries would be fine for the 90 volt "B" battery. Looking forward to seeing you work your magic on the rest of the set. Cheers, V

[@DavidTipton101]

Hi Vern, nice of you to drop in. I agree, the performance on this set was very good, I could tell it had the extra tuning stage. Thank you, I figured the AC affected the directly heated cathodes, it did it in the Vidor AC/battery set I did a few weeks ago as well and other sets with those tubes. I think it said to try reversing it in the instructions inside the set. I do have a set of 9 volt batteries here, I didn't think to try it on battery 🙄 Cheers!

[@raymondmenard5444]

Brilliant as always Dave, ok granted some of the capacitors had already been changed, but not everybody could properly finish it, it needed your expertise and your finesse to really get it going again. Great work and i can't wait to see what you're going to do with the case, i'm sure you'll come up with another amazing solution. Thank's for sharing mate, see you in part 2 mate :-)

[@DavidTipton101]

Hello Raymond. I saved a bit on capacitor costs although I had to change and swap over some due to being the wrong value. The case is a big job, I might still be in therapy when that video goes up 😆 Cheers!

[@raymondmenard5444]

@@DavidTipton101 Ha ha ha ! Well your videos are a therapy for so many of us i'm sure your viewers would gang up to pay for a few sessions with a shrink for yah lol

[@Lancecats]

Buzz is awesome

[@DavidTipton101]

Agreed 👍😊

[@seankearney2592]

Top Man Dave..you Saved another Beautiful Radio from the Scrap Heap.Looking Forward to the Speaker fix....Cant Wait.

[@DavidTipton101]

Thanks Sean, the speaker is an interesting design... nest week 🙂

[@hawkinscsa]

"As Shango would say" 😂😂 ❤

[@DavidTipton101]

Haha... thanks Tim 😅

[@jpkellyburbank]

Excellent work

[@DavidTipton101]

Thank you Jim, very kind 👍🙂

[@richardbrobeck2384]

I also enjoy watching buzz's channel !

[@DavidTipton101]

Another Buzz fan, thanks Richard 👍🙂

[@ibrahimkocaalioglu]

nice video. we had missed you.

[@DavidTipton101]

Thanks Ibrahim 🙂

[@edwardhannigan6324]

Another adventure David, nice job with lots of info..Great video..Ed..Uk..😄

[@DavidTipton101]

Thanks Ed 🙂

[@chrisrobson8540]

good job so far roll on part 2!👍

[@DavidTipton101]

Thank you Chris 🙂

[@mauricedarmody4424]

Always a pleasure to watch and learn, a credit to your countryman.

[@DavidTipton101]

Thank you Maurice, you are too kind 😊

[@ninaevans4501]

Well, G'day Dave, hope all is well your end. Seems we have another new joker as the leader of Pomeland. Sir Keir Starmer (Labour). I believe a change is as good as a rest. Let's give the new bloke a cbance. Warmest Regards from up above, to all down under in Oz!! God Bless you all. And MANY thanks for being a BONZER MATE! Cheers. Wayne, Nina, Barbara and drunk Noddy. ❤️❤️❤️❤️❤️❤️🍻🍻🍻🍻🍻🍻👍👍👍👍👍❌️❌️❌️❌️❌️❌️❌️❌️🏴󠁧󠁢󠁥󠁮󠁧󠁿🇦🇺

[@DavidTipton101]

We will have to see how Sir Keir goes, he has to be better than what another country has to choose from 😅 Cheers guys 👍🙂🥧🍻

[@neilforbes416]

11:20 If the local oscillator is not "running", it could be because its legs are tired! LOL

[@DavidTipton101]

👍

[@Mediawatcher2023]

@neilforbes416 Maybe its in oscilation lol

[@markmurray5619]

Thanks!

[@DavidTipton101]

Thank you Mark, much appreciated 👍😊

[@Madness832]

No firecrackers and time bombs in this joint effort!😳😀😀

[@DavidTipton101]

No, we restrained ourselves 😅

[@petermaxwell2965]

G'day David 👋🏽

[@DavidTipton101]

G'day Peter 👋🙂

[@td7456]

Nice job, I enjoyed the video!

[@DavidTipton101]

Thank you Tim 🙂

[@clasicradiolover]

I have to check to see if I find a new video in the subscription section of KZbin sometimes. I know you know this, since I have worked as a trashman, be sure to properly dispose of the asbestos, the guys won't be expecting something like that. Thanks for the video. Cold solder can be a problem,

[@DavidTipton101]

Thanks clasicradiolover. I disposed of the asbestos sheet according to the local council regs 👍🙂

[@clasicradiolover]

@DavidTipton101 I thought you would, I wouldn't know how to, but I'd make the effort due to my experience in that job.

[@greggsvintageworkshop8974]

Nice work David!

[@DavidTipton101]

Thanks Gregg 🙂

[@erikdenhouter]

I am on the edge of my chair to find out what you have done to the cabinet, it looks like a dino ! For now, great work on the performance ! FYI, the last period I found myself in reading about alignments, as a broad interest, lacking it from my early times, but I learned something that I have not seen mentioning on youtube. The tracking of the antenna circuit with the oscillator can theoretically never be done exactly because of the different frequencies (IF), only by approximation (unless the tuning cap is specially designed for it). By that, in text and on forums I read most often that the aligning (tracking) of the antenna circuit can be done best at about 20% from the top of the band, so around 1400 kHz. That would give the most benefit all over the band. Not all write this, but many do, and only when the manual says different it is not done that way. You have the experience, I not so much, but it is what I red.

[@DavidTipton101]

Thanks Erik. The local oscillator and the Radio Frequency are mixed together before the IF stage so I'm not sure what you mean there Erik. Getting the antenna and oscillator capacitors to track perfectly is tricky. The capacitors are trimmed by bending out the outer plate of the tuning capacitors to approximate the similar tracking through the tuning range, this is done at the factory. It looks to me that the upper trimming point is determined by the tuning range of the receiver. A receiver with an upper range of 1500 KHz is trimmed at 1400KHz, 1600 KHZ at 1500 KHz etc. This set tuned up to 1700KHz I think so the trimming point was 1600 KHz. It's a good point you raise Erik, thank you 👍🙂

[@erikdenhouter]

@@DavidTipton101 Thanks David. To make my IF point clearer, the antenna circuit needs to be tuned at the real received frequency, say 1000 kHz, but the local oscillator needs to run there at 1455 kHz, the difference >becomes< the IF. To keep those two tracking equally seems to be the challenge, because the benefit of a tuned antenna circuit is different along the band. Setting the antenna circuit tuned at 20% of the full range from the top of the band was advertised as the most benefit over the whole range. Maybe let the thoughts sink in, I could be looking at another circuit, the super heterodyne is probably different from a TRF receiver (that third gang), the TRF term I just learned today from you, I had to search for it

[@stanleycostello9610]

Bravo, Dave. You have done speakers before. Easy-peasy. What I am interested in seeing is the case and handle. I don't suspect that Brasso will do it. Hee, hee!

[@DavidTipton101]

Hi Stanley, thank you. I have order a huge tub of Brasso but I don't think it will be enough 😅

[@stanleycostello9610]

@@DavidTipton101 I'm sure the Bakelite on your future projects heave a sigh of relief now that you have plenty of Brasso.

[@hooshangyadegar1250]

Hi dave, l hope you are well. l love your videos and i been checking every day for a new adventure .

[@DavidTipton101]

Glad you like them. Thanks Hooshang Yadegar 🙂

[@batman387]

Good to see you. The portable I worked on was very troublesome way back when. They're out of my league. I learned a lot. Thanks. Take care 🙂

[@DavidTipton101]

Thanks Batman 🙂

[@kilcar]

You're not being " naughty", you're using Aussie Ingenuity! Even this Yank can see that. Well done!

[@DavidTipton101]

Haha... thanks Patrick. I have done it the other way in the past and of course it works but it seems a little odd 🤔

[@mikebeacom4883]

You must have given it a proper scare with that iPod audio. Nice job!

[@DavidTipton101]

Yeah, that woke it up 😄

[@richardbrobeck2384]

Cool I have that exact radio david !

[@DavidTipton101]

Ah... I hope yours is in better condition Richard 🤞🙂

[@abcsd1254]

Again marveling you spent the time to search through Shango videos to get the right clip. Nice work on getting this set running

[@DavidTipton101]

Haha... I think it was on a recent clip of Shango's. I only took a few hours 😅 Thanks abcsd1254 👍

[@nathkrupa3463]

Good work David sir thank you so much for the sharing this video sir 😊❤❤

[@DavidTipton101]

My pleasure Nath, thank you 👍🙂

[@ShannonFerguson]

Welcome back, Dave! Glad to see you taking on a tough nut!

[@DavidTipton101]

Thanks Shannon 🙂

[@ripleysmith7583]

For the next one!

[@DavidTipton101]

Thanks Ripley 👍🙂

[@billmcdonald2436]

I love all of your videos

[@DavidTipton101]

Thank you Bill 😊

[@philllynch3265]

Hi Dave, I think you've done the easiest part so far.. The case looks a mission. But a man of your talents will wave his magic wand🪄🪄🪄. Take care. Hi to Karen

[@DavidTipton101]

Hi Phill, haha... you might be right, the case will be a test. Karen says HI! back 🙂

[@paulsto6516]

Great show!

[@DavidTipton101]

Thank you Paul 🙂

[@hawkinscsa]

Great Job David!

[@DavidTipton101]

Thanks Tim 🙂

[@darrenbird2526]

Another great video, thanks Dave!

[@DavidTipton101]

Thanks Darren 🙂

[@dogribmoon]

Already looking forward to part 2.

[@DavidTipton101]

Next week, thanks dogribmoon 🙂

[@kevintewell6004]

Only missing the puppet 😂

[@DavidTipton101]

Dickel is on vacation 👍😃

[@SeekingTheLoveThatGodMeans7648]

That M multiplier for resistances is tricky -- a more modern convention is K. However there are a few explicit MEGs. You're right, a bleeder of 150 megohms would be silly.

[@DavidTipton101]

A trap for the uninitiated, luckily Paul Carlson pointed it out and I have seen it elsewhere since 👍

[@skip1835]

Thanks

[@DavidTipton101]

Thank you Skip, that is very generous of you 👍🙂

[@jamesbruno5896]

Hi David, Excellent job but I missed what fixed the mains hum? Looking forward to part 2. Cheers mate!

[@DavidTipton101]

Hi James, thank you. I didn't o anything, the hum is OK with the small speaker. It was loud because my shop speaker has a woofer in it.

[@larryainsworth2975]

👍😊

[@DavidTipton101]

👍🙂

[@ninaevans4501]

G'day Dave. Could not agree more, there is one country out there who has no choices. He has PUT them IN an awful position. To be honest, we've always been LABOUR, and always will be. But even then, we are more than happy to listen to another Parties point of view. Enough Politics rubbish, far too serious. Live each day as it comes. Hug your mum, or your dad You only get one of each. Hug your kids, and grand kids. And whenever you can, Drop your tools, get outside and have a barbie with family and mates. And have much beer too. Listen to the birds singing and chill. And when Australia beats England at Cricket, It's because you have a better team of blokes than ours. P.S. Looking forward to your next radio adventure. Warmest Regards Nina, Barbara, Wayne and sober Noddy! BONZER!!! 👍👍👍👍👍👍👍👍👍👍❤️❤️❤️❤️❤️❤️❤️❤️🤝🤝🤝🤝🤝🤝🤝🤝🤝🤜🤛🍻🍻🍻🍻🍻

[@DavidTipton101]

Well said 👍🙂

[@rciancia]

Well done Dave !!!! And Good on Buzz to send it along.. BTW - If @Buzz1151 challenges you to a Potato Growing contest, you'd win hands down. :P Good stuff mate

[@DavidTipton101]

Thanks Ron. Potato growing contest? 🤔🙂

[@rciancia]

@@DavidTipton101 LOL kzbin.info/www/bejne/aorLg2iDhLxom9Esi=FzmwQ5zRjNDWFA7n

[@rciancia]

@@DavidTipton101 kzbin.info/www/bejne/aorLg2iDhLxom9Esi=FzmwQ5zRjNDWFA7n

[@DavidTipton101]

Haha... I had forgotten the great potato war of 2016. John from Arkansas didn't stand a chance if I recall with his crop being eaten be rodents 😅

[@vicmabus1532]

Dave, that looks like a candohm resistor.

[@DavidTipton101]

Yes, I didn't pick that up during the repair, I do now, thank you Vic 🙂

[@mackfisher4487]

I'm glad it didn't come with her red transformer. As Buzz Insists on painting transformers red perhaps if you do a rewind his you should painted it to reproduce the colors of the Australian flag.

[@DavidTipton101]

Hi Mack, I didn't do the transformer but if I did it was going back red! Haha... paint it with the Aussie flag... I like it 🤣

[@tubeDude48]

👍

[@DavidTipton101]

👍😊

[@SeekingTheLoveThatGodMeans7648]

At 50 Hz line/mains frequency, the filtering is going to be only 5/6 as effective as at 60 Hz for a given filter capacitance. So there will be more hum, but not that terribly much more. There used to be areas in Canada which used 25 Hz line frequency which required relatively large transformers, inductors, and capacitors compared with 60 Hz line. Perhaps the bass response of your shop speaker is also "helping" the hum; small tube powered audio amplifiers often used speakers whose low end (-3db) response was around 100-150 Hz, diminishing hum because the speakers did not reproduce its frequency efficiently.

[@DavidTipton101]

A good point Seeking. With the original speaker fitted the hum is quite acceptable 👍🙂

[@RegiPavan]

😎😎😎😎👍👍

[@DavidTipton101]

😊😊😊👍👍

[@4X6GP]

This looks like a challenge. What did you do to fix the loud hum?

[@DavidTipton101]

It is... The hum was being exacerbated by my large shop speaker. With the small speaker it is acceptable. It's a side effect of the directly heated cathodes 👍🙂

[@drohegda]

👌👍👍📻👍

[@DavidTipton101]

😊👍🍻😃

[@chriskilby5300]

Hi Dave were can i get the signal generator tracer that you were using in latest video. Another fantastic video. Cant wait for next video . Take care Dave . Best regards from melbourne.

[@DavidTipton101]

Hi Chris, The tracer is a kit, details are in the description below my videos, click on "More..." under them 👍😊

[@neilforbes416]

16:15 There's that "hum" again, better buy a songbook so the set can follow the words of the song! LOL

[@DavidTipton101]

👍

[@georgeallen8860]

David i recon you could tune two boy scouts rub them together and light a fire

[@DavidTipton101]

Haha... it's worth a try, thanks George 😅

[@carlosandino821]

I wanted to ask a question about this radio, does it have a locked tune? At this time it was common, because of World War II, for there to be blockages in the transmission of short waves from certain radios, such as the official German government radios, and that on the other hand, radios from England, the Soviet Union and the United States had various interferences caused by radio signals. blockades of German radio stations. That's why I ask because many radios were manufactured with prohibited tunes, that is, a certain frequency that was used by German radios were simply not tuned, in the same way that German radios had their tunes blocked only for official government radios. And since this radio is from 1941, I assume it may have some factory "lock". Is this true?

[@DavidTipton101]

Hello Carlos, I haven't heard of that feature in the sense you have described. This radio has full range tunning from about 550 to 16 or 1700 KHz 🙂

[@carlosandino821]

@@DavidTipton101 Okay, so it's a classic medium wave reception radio. I can say that this type was one of the most popular along with shortwave reception radios.

[@DIlic-iz9tx]

👍🙋🏊

[@DavidTipton101]

👍🙂😃

[@daleburrell6273]

18:11...a "ballast"...(?)

[@DavidTipton101]

It's a candohm resistor, it was used to drop a few more volts before heading to the rectifier tube and maybe help reduce inrush current... maybe 🙂

[@neilforbes416]

Of course it carries a trademark that RCA should *NEVER* have been allowed to use, *EMI's "His Master's Voice" trademark* which, in 1929 EMI's forerunner, The Gramophone Company of England should've withdrawn The Victor Talking Machine Company's licence *BEFORE* Victor could pass the HMV trademark to RCA. Victor *DID NOT OWN, NOR DID IT HAVE SHARES* in the trademark. Victor was merely a "licenced user", and ironically, the German company that had originally established The Gramophone Co. in England, DGG(Deutscher Grammophon Gesellshaft), post WW1, was reduced to being a mere licenced user after losing its 50% share of the trademark in the wash-up of WW1. The only things RCA had legitimate right to purchase were the "Victor" name and the factory building in Camden, New Jersey.

[@DavidTipton101]

👍

[@ShadowsOnTheScreen]

But they did. So take that. I guess.

[@Mediawatcher2023]

@neilforbes416 they did so you have to accept it

[@Mediawatcher2023]

@neilforbes416 All that information is not that important.

[@Digital-Dan]

Shame we've had to get so paranoid around all forms of asbestos. The really dangerous kind is not what you took care of.

[@DavidTipton101]

Either way, it was safely disposed of Dan, thanks 🙂

[@bellytripper-nh8ox]

AT THE 18:42 MARK, YOUR BRYMEN DIGITAL METER IS **BM** 786 DOES **BM** MEAN **B** OWEL **M** OVEMENT NUMBER 786??

[@DavidTipton101]

NO

[@alpcns]

Great work as usual, David! That radio sounds indeed very good and warm. What form factor was that resistance-brick? :-) It was big enough to roll around in some politician's head.

[@DavidTipton101]

Thanks alpcns. It works and sounds good. The resistor is a Candohm type, wire wrapped between insulation layers and a metal sheet over the top. That was pointed out in another comment, I didn't make the connection in the video because we don't see them here although a few US radios I did had them🙂