|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: can I connect mixed tube heaters in series? posted by jarthel on August 10, 2006 at 20:01:56:
Great question.Series tube heaters are an excellent practical example of Ohm's Law.
As long as each tube heater draws the same exact current, then you can connect them in series and apply the required voltage to light them up (like Xmas tree lights.)
Many AM desktop radios of the 50's and 60's used the All American-5 tubes in series connected to the 120 VAC mains.
One of two classic lineups are:
12BE6+12BA6+12AV6+50C5+35W4 = 12+12+12+50+35 = 121V
or
12SA7+12SK7+12SQ7+50L6GT+35Z5GT
Also if one or more of the series connected filaments has a different current draw rating, the shunt resistor method suggested here is the way to go.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: can I connect mixed tube heaters in series? - shermanr@prw.net 07:53:23 08/11/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
