Tech-Master NIB TV Kit #5516

[Crist Rigott]

Between the 6 Instruction Sheets and the IF Strip Instruction Sheet, there are 280 individual steps!

103 have been completed.

[dieseljeep]

Originally Posted by Crist Rigott

Between the 6 Instruction Sheets and the IF Strip Instruction Sheet, there are 280 individual steps!

103 have been completed.

A slightly related question?
Were did you source your replacement parts, all from Radio Daze? I really like the resistors you're using. The caps are similar to the ones from Jim's Antique Radios, they seem alright!
BTW, I wrap and crimp the component leads very much the same way you do before soldering. I was taught, "Mechanically and Electrically Secure".
A buddy asked, "Why do you do it that way, it's overkill". IF it's soldered properly, you don't have to do that.

[Crist Rigott]

Originally Posted by dieseljeep

A slightly related question?
Were did you source your replacement parts, all from Radio Daze? I really like the resistors you're using. The caps are similar to the ones from Jim's Antique Radios, they seem alright!
BTW, I wrap and crimp the component leads very much the same way you do before soldering. I was taught, "Mechanically and Electrically Secure".
A buddy asked, "Why do you do it that way, it's overkill". IF it's soldered properly, you don't have to do that.

I get my parts from Just Radios. Both caps and resistors. Good stuff. Sometimes I get caps from Sals. Good stuff too. I like using the 1W resistors because the leads are thicker and stronger than the 1/2W ones. I like Just Radios because I can get film caps, mica caps, e-caps, resistors, spaghetti tubing, heat shrink tubing all in one stop. I get some stuff like Nichicon e-caps, chassis mount resistors from Digikey

On the lead wrapping stuff. That's the way I've always done it. I have a background in the Avionics installation and repair and we always wrap the lead or wire for that extra security. It is overkill on these TV's but I think wrapping the lead also holds it in place till the other components are attached or till it's soldered.

[Crist Rigott]

I finished step 4 (Vertical Oscillator & Output). This step had 39 steps. Things went very well. I lengthened 1 wire by 2 inches. My .0047uf caps did not come in today so I couldn't install C29.

One thing I noticed is that the pre-made CRT connector and yoke wires are too long. Tonight I'll see how long they are and maybe adjust their length. I'll let you know what I found.

Here is an overall picture after step 4.



Followed by some close ups of the area.

[Crist Rigott]

OK, first up is the CRT wiring length.

Here is how long it is as of right now.


Here I am measuring 6 inches to shorten the harness by.


Here is the harness pushed into the chassis 6 inches.



It looks like I can shorten the harness by 6 inches and still have plenty of slack. Comments anybody?

[Crist Rigott]

Next up is the yoke harness.

Here is a picture that shows how long it as of right now.


Here I am measuring 6 inches to shorten the harness by.


And the harness pushed into the chassis 6 inches.


So what do you think?

[Findm-Keepm]

Man, with a beautiful chassis like that you'd better sign that chassis when you are done - it's "art" for sure. Use a paint pen, no wimpy Sharpie....

[Electronic M]

If you ever fall in love with an empty cabinet that needs the CRT mounted separate from the chassis the extra lead length could come in handy.

[Crist Rigott]

Originally Posted by Findm-Keepm

Man, with a beautiful chassis like that you'd better sign that chassis when you are done - it's "art" for sure. Use a paint pen, no wimpy Sharpie....

Yeah, it is nice. Thanks.

[Crist Rigott]

Originally Posted by Electronic M

If you ever fall in love with an empty cabinet that needs the CRT mounted separate from the chassis the extra lead length could come in handy.

That's right, I forgot about that option. Thanks.

[Blast]

Enjoying this thread. Very cool! Good luck with your build.

[Crist Rigott]

Originally Posted by Blast

Enjoying this thread. Very cool! Good luck with your build.

I'm glad you're following along. That's why so many pictures and details.

Thanks.

[Crist Rigott]

Tom got me thinking about keeping the long wires. So I came up with this solution:



Now, my big question is having both the CRT and yoke wires with a coil in them will that affect the quality of the picture? Anybody know?

Thanks.

[Findm-Keepm]

Probably not - no significant inductance or capacitance generated - if it was color, perhaps, but B/W, no. Think about Predictas - CRT/Yoke had some pretty long interconnect cables......

[Jon A.]

Originally Posted by Findm-Keepm

Man, with a beautiful chassis like that you'd better sign that chassis when you are done - it's "art" for sure. Use a paint pen, no wimpy Sharpie....

That makes me think, Heathkit TVs should have had "builder's signature" etched into the chassis instead of a signature line on the build sticker...