Admiral 14R12 Restoration

[Crist Rigott]

Originally Posted by bandersen

Why did you pull the 1B3 ? No harm is gong to come from leaving it installed.

You're right. Seeing the rectifier tube was pulled. Just being overly cautious and still being new to this.

[Electronic M]

Originally Posted by Crist Rigott

You're right. Seeing the rectifier tube was pulled. Just being overly cautious and still being new to this.

If you are worried about protecting the flyback while testing other stuff the better tube to pull would be the Horizontal output.

[dieseljeep]

Originally Posted by Electronic M

If you are worried about protecting the flyback while testing other stuff the better tube to pull would be the Horizontal output.

Pulling the rectifier tube is the first thing I do!
On the horiz out, remove the entire tube, not just the plate cap. Just lifting the plate cap, can still destroy the H.O, because of no plate voltage.

[Crist Rigott]

All good stuff. Thanks guys for the tips. I'm going to check for the high voltage from the transformer at the 5U4G tube. I didn't do that yet.

[Crist Rigott]

612vac at the 5U4G tube pins 4 and 6. Riders says 310vac each side.

[Crist Rigott]

Guys, I could use a little help. I am checking the mica caps as to their location in the chassis and their values to compare them to the schematic. I think one of them isn't the value as shown on the schematic, both Sams and Rider's. I've taken close ups of the micas and would like some help in reading the dot codes. I've got the Radio Daze color page describing how to read them.

What I would like is for you guys to confirm their values from the pictures. Just to see if I'm reading them right.

The 1st one is C403. Yellow, violet, black, brown, silver, orange
The 2nd one is C404. White?, yellow, violet, red, silver, black
The 3rd one is C413. Grey, red, black, white?, silver, green
The 4th one is C420. Yellow, violet, black, black, silver, blank
The 5th one is C421. Yellow, blank?, black, red, silver, black

Thank you for your help.