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   Home   Help Search  
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Author Topic: SB-200 How Low will it go?  (Read 25520 times)
W8JX
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Posts: 13268




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« Reply #45 on: November 03, 2014, 04:04:32 PM »

You know you could run it with one tube in it and at 150 watts out it should keep it gettered.
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Ham since 1969....  Old School 20wpm REAL Extra Class..
K0XS
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Posts: 9




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« Reply #46 on: November 06, 2014, 02:46:39 PM »

Thanks to all for your thought full answers and opinions !!!
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AH7I
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Posts: 121


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« Reply #47 on: November 09, 2014, 11:09:56 AM »

Try a single 811 at low plate voltage. Tube will be happy and tank should be able to accomodate.
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W8JX
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Posts: 13268




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« Reply #48 on: November 09, 2014, 11:39:16 AM »

Try a single 811 at low plate voltage. Tube will be happy and tank should be able to accomodate.

Not a option in a SB200. Plate voltage way too high but like I said a single 572 would work.
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Ham since 1969....  Old School 20wpm REAL Extra Class..
AH7I
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« Reply #49 on: November 11, 2014, 08:10:29 PM »

"low voltage"
Rewire PS as a FWB. 811 will be very happy at 1100V.
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W8JX
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Posts: 13268




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« Reply #50 on: November 12, 2014, 09:48:45 AM »

"low voltage"
Rewire PS as a FWB. 811 will be very happy at 1100V.


Terrible waste of a fine amp.
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Ham since 1969....  Old School 20wpm REAL Extra Class..
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