| To: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
|---|---|
| Subject: | Re: [TenTec] Herc II vs Astron |
| From: | Steve Hunt <steve@karinya.net> |
| Reply-to: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Sun, 03 Mar 2013 21:07:55 +0000 |
| List-post: | <tentec@contesting.com">mailto:tentec@contesting.com> |
N6KB beat me to it!My schematics show nowhere the 4 supplies are connected together; but you do need a fifth, low current, supply to power the DC distribution board in the amplifier. In the 9420 they derive that supply - and the one to power a separate transceiver - from the four main 14v rails through a couple of full-wave bridge rectifiers. The bridge rectifiers ensure they don't inadvertently "parallel" the four main supplies. I wonder how you are providing that fifth supply? Steve G3TXQ _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec |
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