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David makes a mistake with the Air King 222
Radioroslyn
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Posts: 7,285
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Joined: Dec 2009
City: Roslyn Pa
#3

08-31-2021, 08:16 AM
Here's the heater dropping info  UK Vintage Radio Repair and Restoration - Dropper Calculations (vintage-radio.com) I think you'll find the spreadsheet at the bottom most helpful.
The hv w/240v mains you'll need to get rid of 130v or so @ 30ma which is abt 4.3k @ 5w or better. It maybe be a little less than 30ma.
YMMV
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
(This post was last modified: 08-31-2021, 08:23 AM by Radioroslyn.)
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RE: David makes a mistake with the Air King 222 - by Radioroslyn - 08-31-2021, 08:16 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)