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1951 Pontiac Chieftain


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Posted

20200519_183037.thumb.jpg.e263495a0ff84dee9e53db36c920ba72.jpg

I bought a keyring (local made, local theme) for my keys. Thought it was nice. Kept losing these keys (recurring theme) so needed something bigger and recognisable to attach them to.

Phil

  • Like 1
Posted
5 hours ago, PhilA said:

I bought a keyring (local made, local theme) for my keys. Thought it was nice. Kept losing these keys (recurring theme) so needed something bigger and recognisable to attach them to.

Phil

Put-Your-Nutrition-Specs-on-When-Working

:P

Posted

Torturing the semiconductor with some HV?

Posted
20 minutes ago, somewhatfoolish said:

Torturing the semiconductor with some HV?

I think its supposed to be their pet or something such LOL

 

3 hours ago, PhilA said:

20200520_152923.thumb.jpg.ea9cfb5da52bce1822a2094106ba3b82.jpg

The Analog Gang

it would be amusing to leave the googly eyes on there for the next person to venture into the radio to discover :) 

although I dont think the adhesive would hold up that long in such an environment!

Posted
31 minutes ago, LightBulbFun said:

I think its supposed to be their pet or something such LOL

D'ye loik dags?

  • Like 1
  • Haha 1
Posted

20200522_110701.thumb.jpg.abcddc0deecdc6654fdbb63e1b0c1468.jpg

14C5 power output tubes arrived.

The rest of the stuff that I actually need to start this is sat in a warehouse in New Orleans right now and won't be here until at least tomorrow.

 

Phil

  • Like 2
Posted

20200523_120153.thumb.jpg.d55aae7040d78e80605f36aaed283575.jpg

Bag of pieces finally arrived.

 

20200523_131939.thumb.jpg.058490530377707ba4f636a2f9aeefd6.jpg

Rebuilt the main filter capacitor can- I had previously cut the bottom off and gutted it- basically 3 individual big, high voltage capacitors inside. The two chunky ones at the top are double the original capacitance (to help filter more junk off the HT supply of I decide to put a solid state vibrator in) and a little 25V 0.25uF K filter for the output stage.

 

20200523_150048.thumb.jpg.e01abc0002e0d9a9d53205651b81c22a.jpg

Fully rebuilt the new, upgraded 12V HT supply.

 

It also works.

 

Phil

Posted

Sorry if I'm teaching you to suck eggs...but it's worth checking what maximum capacitance the rectifier valve is designed to handle.  If it's too large it can overstress the rectifier.

Posted
1 hour ago, PhilA said:

Rebuilt the main filter capacitor

Most people would replace the radio, a few would replace components, but this is the first time I've ever heard of anyone rebuilding a capacitor. I take my hat off to you!

  • Like 3
Posted
30 minutes ago, mat_the_cat said:

Most people would replace the radio, a few would replace components, but this is the first time I've ever heard of anyone rebuilding a capacitor. I take my hat off to you!

seen it done a few times in vintage radio restorations etc now :) that doesn't make it any less cool tho! its done a lot of the time to keep things looking authentic/athesticly correct etc but another one I have seen is to leave the old electrolytic in place disconnected and tack in some modern replacements underneath but thats less impressive!

 

back about 6-7 years ago when I couldn't walk for about 6 months and as such was bed bound with nothing but a laptop, I binge watched so many of this guy's videos :) 

https://www.youtube.com/user/bandersentv

  • Like 2
Posted
36 minutes ago, Zelandeth said:

Sorry if I'm teaching you to suck eggs...but it's worth checking what maximum capacitance the rectifier valve is designed to handle.  If it's too large it can overstress the rectifier.

No, totally valid. It's a .005 1600V, with a 15k resistor in series. Original spec for the rectifier. A lot of people overlook it.

 

Phil

  • Like 1
Posted
1 hour ago, PhilA said:

20200523_120153.thumb.jpg.d55aae7040d78e80605f36aaed283575.jpg

Bag of pieces finally arrived

 

Phil

apart from this no idea what just happened :D

nice one phil

  • Haha 2
Posted

Getting a suntan

 

VideoCapture_20200523-212445.thumb.jpg.671dccc7733e9212c1e416e143a8169c.jpg

0Z4 rectifier tube with the lid removed. The anode has sagged a little and is much closer to one cathode than the other and as such likes to run in half wave with no load. I'll give the spare a try afterward.

 

Phil

  • Like 2
Posted

Holy smoke (or hopefully not). I haven’t got a clue what’s going on with all this sorcery and witchcraft, but it sure looks impressive.

 

  • Like 2
Posted
2 hours ago, Jenson Velcro said:

Holy smoke (or hopefully not). I haven’t got a clue what’s going on with all this sorcery and witchcraft, but it sure looks impressive.

 

It's fairly straightforward. The thing is broken down into 3 main sections:

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Red- High voltage power supply.

Green- The actual radio part that collects the signal and turns it into something useable.

Purple- Power amplification to send the signal out of the speaker.

 

Just like anything electronic or engineering, it becomes more simple the more you break it down.

 

Phil

Posted

20200524_111114.thumb.jpg.76755e0609d7253bf869094fba6ce35d.jpg

It is complete.

 

It even makes noises. Bit more to do yet but that's not bad at all.

 

Phil

Posted

Fixed most of the issues.

Doesn't sound half bad for 69 years old having had a full heart transplant...

 

Phil

Posted

They built things to last in those days.

  • Like 1
Posted

Rubbish music. Needs a bit of Tuba Skinny on there to do it justice.

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