This channel must be one of the loveliest on KZfaq. Always makes me smile, always brightens my day and I learn a lot. Thank you!

Maybe you know this one already but If your HP3314A is old enough it might have the Handel's Messiah Easter Egg buried in the firmware. From power OFF, push and hold the "SW/TR INTVL + START / FREQ + blue function key" then turn ON the power and continue to hold those buttons until you see the seven segment led flashing register address locations - then let go of the buttons. When it's done loading memory it will start playing Handel's Messiah in it's entirety. PS. you'll need to connect a speaker to the function output jack to hear the music! Back in the 80's, a good friend of mine worked for HP and knew the Engineer that worked on this function generator. As the story goes, HP's test equipment product development model gave the Engineer a crazy long time to develop the instrument. Usually takes about 10 months to get to a production ready instrument, then they get a couple of "extra" years to over Engineer the product which is why their test equipment is so good and lasts so long! The Engineer for the 3314A had finished way ahead of schedule and finding himself with lots of time on his hands decided to hide this musical effort into the ROM code. It took many years before his supervisor discover what was done and they subsequently removed that Easter Egg from the firmware. HP Party poopers!! enjoy...

Keep smiling Mark, what a legend.

I just know you had a happy childhood Mark, I can tell by your brilliant happy smiley face :)

A very pleasant person, no doubt about that, the smile does everything....I like to watch how you repair vintage equipment, how you bring them back to "life" again...very nice, well done!👏 ....from Romania, wish you good health and happiness!

I've been privileged to have been inside the inner sanctum of the Batcave Mark AND you've gotten me out of more electronic scrapes than I care to remember! Awesome video bud!!!

Greetings from New Zealand .... Mark and Techmoan. Essential viewing, many thanks to both for hours of entertainment and knowledge.

Does anybody else understand what marks talking about? No me either but I absolutely love this Chanel. 😂👍

Wonderful and inspiring, Mark! Maybe you could also do a video on how you grew your skills - I'm guessing at least an apprenticeship? I've been teaching electronic engineering over 30 years and my main aim is to inspire and grow confidence in my students. I wish I could have seen your excellent videos back then! Thank you so much😊

When you have oscilloscopes behind your oscilloscopes 👍

I love this stuff. I should have gotten deeper into electronics when I was going through high school and pursued an EE degree. What amazes me is how people that have these sort of labs afford what seems to be hundreds of thousands of dollars of equipment along with the expertise to work all of it. It's beyond fascinating.

So cool. It's like the cockpit of the nostromo

Years ago Tektronix sales rep sent us their latest scope for us to play with and we unboxed it and I switched it on. It starting doing the Windows boot sequence and my colleague and I just looked at each other and sighed. Without any further discussion I pulled out the IEC from the back and put it back in the box.

Amazing. I'd love to know your story and have you accumulated such extensive knowledge.

Amazing, thanks for tour.

Love your work and enjoy your videos! Thanks

Love your videos . Thanks for all the hard work.

Great workshop so much stuff

I love this channel!! You are absolutely brilliant!!

Amazing workflow

Super cool setup. I look forward to your videos every week!

WOW a great lot of toys, I'm green with envy, I started in electronic in 1954 now retied at 83yrs. but never had gear like that LOL. Great show keep it up.Best Regards Paul.

Such an awesome channel! Your enthusiasm really rubs off and watching you work on projects is both educational and weirdly relaxing 😄 My young daughters even enjoy watching along seeing you taking things apart they've never seen opened up before. I like to think you might also teach them that, just because something doesn't turn on anymore, doesn't mean it can't be repaired 😊 Thanks for all the hard work of making these videos!

Many thanks, Mark. What a great assortment of test gear. Thanks for showing it to us.

Doesn't get better than this! Thank you Mark!

WOW, awesome, very nice lab, congratulations.

great channel Mark and you must love what you do, seeing you smile a lot :) I love the equipment and worked with a few in my schooldays.

Brilliant. What a great workshop / lab / lair! I'm envious of that and of course your skill level!

Thank you very much for the tour! Your lab is amazing. I really enjoy the videos, and the passion for what you do is transmitted. It reminds me of my youth with electronics. THANKS!

Great lab tour, thanks for sharing!

excellent Mark..a host of fantastic equipment.

A fantastic range of equipment! I have to make do with rather basic stuff. Although it's worth pointing out to vintage radio hobbyists that you can achieve a lot with very little, such as simple soldering tools and a basic multimeter, pocket oscilloscope and perhaps a second-hand signal generator.

Great video, thank you for sharing!

Awesome shop.congratulations and thank you for sharing.

Lovely workshop Mark

Your disposition is so pleasant. Thank you for posting your videos.

Thanks for the look around. Enjoy your video's.

Hi Mark, Your man-cave is unbelievable! The way you conduct your work is impressive, and always with a smile - even in the face of catastrophe!

The Things I could LEARN from you M8!!! wonderful shop. Great show!!! keep those repairs coming!!!

Awesome shop

This channel must be one of the loveliest on KZfaq. Always makes me smile, always brightens my day and I learn a lot. Thank you! " Its True"

I was impressed to see most of your instruments are plugged in and ready to power up. 🔌 Must be a dream to work in this environment but your electricity bill is probably eye watering! Thanks and I am enjoying your videos and work! 😁

Most impressive workshop! All the tools and instruments to do a full restoration of all things electronic . Thank you for the informative tour

Thanks Mark. I love the very expensive radio!

hi mark what a fantastic workshop, i love all your repair videos keep up the good work. i love how you explain things on every repair please keep the you tube videos coming and thankyou 😊

I have no words!!! It is simply mindblowing!!!

Saw your channel mentioned on UKVRR a while back and have watched a few video's, interesting stuff. You've some nice test gear there, thanks for the tour.

Great space.

What an absolute treat! Thank you Mark for the walk around, loved all the detail about the equipment, it must have taken many years to have collected, and good to see that they're mostly still all used. Absolutely love the channel, my children call you "giggly man" which is definitely a compliment 😊

what and amazing collection... !

Much of that equipment reminds me of the Ferranti calibration lab I worked in as part of my apprenticeship in the 90's. Amazing!

you have an amazing lab. you use analog and digital oscilloscopes, function generators, frequency meters, power supplies... everything a good electronics lab needs, simply wonderful.

Most of what you said went over my head , I still watched because I am very impressed with your knowledge Love viweing your videos and how you present them , You owe me several days of my life back , Keep it going , You are great .

Fantastic. Maximum respect sir 👍

Unbelievable! Too much nice lab! 😀 Very Inspirational!

Absolutely amazing workshop, I doubt there's anything you can't do in there!

You've really optimized a small space. Amazing that you have all those things crammed into that small shop and yet you work so efficiently. A man after my own heart with your polymath approach to repair!

What an Aladdin’s cave and such a fun place to work. Always look forward to your next repair, Mark

Love to watch your videos..Mark especially being from the Midlands.. now living in mallorca... Your tour vid was class.. TANDY came to mind... Thanks for all hard work and hrs making and sharing your videos...

great videos mark very interestin' subscribed today. Thanks, Tony

Wow from 2k to nearly 50 K subscribers in one year, thas HUGE especially for this type of content of repair/electronics, your quality has been noticed.

I love your channel... especially the 80/90 hi-fi... keep up the repair show!! greetings Andre Brazil

Sir great job

I turned the volume down when I was watching the 'soldering' part, as my Mrs was asking me something. I returned the volume again to hear Mark saying "Massive Tips!" - I must admit that I actually misheard it first time! Haha! Awesome look around your workshop matey! Good stuff! Paul

I really enjoyed the tour of the shop - concise, useful info. You only left off the wall-mounted power switching that features in some of your videos. Good info for safety.

I’m glad I found your channel Mr. Mark. I’m from the US and I was in the Army in the early 90’s ( Gulf War Era ) and was trained as a Radio Repairer ( 29Echo ) Sadly I really only learned how to fix the equipment we were currently using, I’ve forgotten a lot. Watching your videos and others I follow remind me of just how much I’ve forgotten when it comes to bench testing and all that entails. You’ve definitely earned my subscription.

Impressive workshop , very interesting videos and really pleasant to watch , subscribed of course , thanks for sharing the knowledge 😃

I really enjoy your happines in what you do. Thank you for giving us a glipse of what you do. I hope that my lab will look just like yours!

I have been binge-watching your videos and a great job you have done. I really like your setup and equipment I'm jealous, you must have spent an absolute fortune.

Top man!😊

My first impression of the oven was that Mark uses it to heat food 😂

The electric company must love you 😂 Great stuff, thanks for sharing

I'm very envious of your set up great stuff, I love my Tek 2465A, and HP 8903a, great pieces of kit. I use the 8903 with the Pere Millet software to do distortion plots, mine needs some attention though it doesn't read as low as it should. Keep up the great videos 👍

this is my favourite channel !

Holy Ned, Mike! I am amazed.

just so much fun to watch this channel and all these crazy machines. love it

Hope you have your workshop well insured .

W, what an Aladdin’s cave !! Thanks for that, I’ll check out your desoldering pump as that seems to work really well.

bloody hell Mark you´re just great ♥

Very nice Workshop;)

Love your videos, and your smile your a star

Impressive! My Uncle Ray worked for Thorn-EMI back in the day and even he did not have as much electronic diagnostic equipment .

I could send a ton of work your way Mark, if only i could move a continent closer. Superb workshop and skillset.

Thank you for the visit ! And i take the opurtunity to say how good your video are made. As an editor i know the time it takes to do it well, and they are ! Thanks !

I’m watching this 2000 subscriber video on 28-12-2023 when his subscribers number is at 60,700(ish). That’s only 15 months later. Very enjoyable channel. Nice work Mark.

Nice one fellow Brummy!

Dude you have some skills!

very well👏👏

I've got the 465. Love my scope!

Amazing well stocked workshop you must have quite a few mains sockets hidden away to power all that lot good video

Have you thought of swapping out the mechanical HDD in the Windows XP Tektronix oscilloscope for a SSD? Might future proof it, and booting will be faster.

Muito bem equipado, its wonder!

Love the HP speccie

Wow wow wow. Amazing. I am both jealous and in awe. How the eck did you accumulate all that kit! I have sever case of shed envy. Great channel.

😊 Good Shop ❤ +1 !!!!

Enjoyed the tour of your lab. Many classic pieces of test equipment. I don't have that much room in my lab so I have purchased modern Chinese test equipment and some of the mini Nano VNA and spectrum analyzers. I did not however see a tube tester? Keep up the good work.

I've only recently discovered Mark's channel but I've been compulsively watching him fix things that the vast majority of people would chuck in the bin (as you Brits would say). I've learned a great deal in the 15-20 videos I've watched so far. Thanks!

nice!

Hi Mark, thanks for another great video. You lab setup is very impressive. You have inspired me to get back into repairing. Could you make a video about how you have your test equipment setup with the required mains isolation. It would be great if you could also cover how you have wired the voltage and current meters on the wall.

You may as well be talking in Chinese Mark, I’m afraid, perhaps you are? It doesn’t matter to me, I enjoy your channel . Thank you for sharing your electronic shenanigans, I do enjoy it.