Final assembly! Will it work? It's a Heathkit - anything could happen! Enjoy!
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
- Music by Fran Blanche -
Frantone on Facebook - https://www.facebook.com/frantone/
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
Dear Fran.
In the first episode, you intended to clean those switches using a spray, that does not work. You should have disassembled the switches, polish the metallic contacts with a clean piece of bond paper in order to make clean and shiny metal look, grease the contacts and reassemble back again. The noise is due to false contact because they are oxidized.
Thanks for the videos, I enjoyed them very much.
Caig DeOxit is your friend!
This from 1971? Designed in the 60ies? I think it was late 60ies I first heard of printed circuit boards. I couldn't figure out how they could print copper that thick on anithing. Thin like gold leaf ok. But I knew it must be thicker, so how? It was a mystery to me back then.
Hi Fran. Still hoping there will be a part 6.
Where the heck is part 6?
After 6 to 8 frustrating hours of watching you make cold solder connections, and advising things such as using a hand stripper for solid wires that will break if you nick them and then need to bend them. Other things that no tube tech would ever do such as leaving so much of the grid end of the grid resistor sticking out like an antenna when you could have left the ground lead end of the resistor as long as possible to minimize your grid 'antenna' when you have the opportunity to do so. SOOoooooo many no no's……
If you have not published a part 6 in 3 or 4 years, send it to me, I will fix it in a few minutes, (if you don't count the time to open and close the chassis), and send it back to you so you can tell all your viewers how you troubleshot and repaired it.
You will be able to do that because I will provide you with a detailed description of how I troubleshot and repaired it so you can finally make a part 6 for your viewers……
I don't give a darn who gets the credit, I only want you to finish this series!
I was pretty vested in this, where is part 6? Did you get it working?
Hi, It's me again, at home. (It's an endearing compliment)
It started with those spring wire connection kits. Then the magnetic squares with resistors, caps and transistors printed on the top. That all got me interested in electronics. Good thing, got my degree and plenty of good paying jobs. 1978 – 2010.
I could mail order Heathkit. We also had a store front "Lafayette" that had off the shelf and kits just like Heathkit. We also had radio shack but thy weren't in the kit market so much. I did miss them to buy IC's, res, caps, etc.. Nice for 8 and 16 bit digital but I saw the writing on the wall. They could never stock the large and quickly changing electronic parts.
I bought a strobe light kit from Lafayette. You could connect it to your speaker for the flashes to follow the beat or just set the flash rate. I put it all together and it didn't work. The guy at the store tried as well with no success. (My first soldering attempt). I was 15? I used a Weller soldering gun. A bit to much wattage (hey the solder melted quickly) and the etched copper traces also lifted off the pc board. 😄
Sent back to mfg. 3 months later I got a working unit back. A mistake in some of the values of components.
This used an SCR to trigger the high voltage circuit to allow the Xeon bulb to flash. Replacement bulbs were 2/3 the cost of the kit.
Here is a video of the tube with a SCR circuit. High Voltage and epilepsy warning. LOL
Such a shame you never revisited this with a part 6. While I'm not "young" I'm still young enough to have missed the heathkit craze. It was fun watching you assemble it, but such a drag to not see it come to completion! Please consider wrapping this one up!
hey!, smoke didn't come out the back!
Just spray DeoxIT on the switches Fran.
What ever you do the metal barrel of the probe must be grounded, even for audio. You obviously have an instability problem. Make sure the front panel is properly grounded to the main chassis. It relies on the controls that go through the panel to connect the two together.
Hey! I'm from overseas and we call them "pommes frites" 😉
Signal Tracer go BRRRRRRRR
Your ice cube tray is 😎 cool.
I like the idea.
I don't know Fran,,,, maybe from the movie, " Human Highway" ?,,,, anyway,, great build kiddo.