My first 1920's set

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My first 1920's set

Radioroslyn
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Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa

#11

09-16-2013, 02:11 PM

Well the A supply is pretty easy to build. Just need a good 6.3v @ 3A or so filament transformer, a bridge rectifier, 5000-10000mfd cap@12v and a LM317T IC +a few small resistor and a cap or two. The LM317 is an adjustable regulator that come in two sizes @1.5A and 3A. You can put up to 37v in it and it will regulate it from 1.3v to 37v. If you want to go on the cheap you can use a 5v fixed regulator.
OR You could use the regulator with a 12v car battery to regulate it down to 5V and not have to build a 6v ac supply to start with.
Happy building!!!
Terry

(This post was last modified: 09-16-2013, 02:20 PM by Radioroslyn.)

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Messages In This Thread

My first 1920's set - by Groundhog74 - 09-15-2013, 08:59 PM

RE: My first 1920's set - by sam - 09-15-2013, 09:35 PM

RE: My first 1920's set - by morzh - 09-15-2013, 09:41 PM

RE: My first 1920's set - by BrendaAnnD - 09-15-2013, 10:47 PM

RE: My first 1920's set - by Phlogiston - 09-16-2013, 12:07 AM

RE: My first 1920's set - by Electrothaumaturgist - 09-16-2013, 02:10 AM

RE: My first 1920's set - by Radioroslyn - 09-16-2013, 08:12 AM

RE: My first 1920's set - by sam - 09-16-2013, 12:51 PM

RE: My first 1920's set - by marty - 09-16-2013, 01:21 PM

RE: My first 1920's set - by keithw - 09-16-2013, 01:34 PM

RE: My first 1920's set - by Radioroslyn - 09-16-2013, 02:11 PM

RE: My first 1920's set - by Groundhog74 - 09-17-2013, 02:23 PM

RE: My first 1920's set - by Groundhog74 - 09-20-2013, 07:39 AM

RE: My first 1920's set - by Groundhog74 - 09-20-2013, 07:41 AM

RE: My first 1920's set - by Electrothaumaturgist - 09-20-2013, 01:14 PM

RE: My first 1920's set - by TA Forbes - 09-20-2013, 01:28 PM

RE: My first 1920's set - by Groundhog74 - 09-23-2013, 08:30 AM

RE: My first 1920's set - by Gene Pederson - 09-23-2013, 10:35 AM

RE: My first 1920's set - by keithw - 09-24-2013, 09:51 AM

RE: My first 1920's set - by Groundhog74 - 10-22-2013, 05:42 PM

RE: My first 1920's set - by TA Forbes - 10-23-2013, 12:52 PM

RE: My first 1920's set - by Groundhog74 - 10-23-2013, 07:13 PM

RE: My first 1920's set - by exray - 10-23-2013, 08:00 PM

RE: My first 1920's set - by Radioroslyn - 10-24-2013, 02:30 PM

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