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Speaking of unusual power amp designs.... http://dcaudiodiy.com/phpBB3/viewtopic.php?f=5&t=1499 |
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Author: | Roscoe Primrose [ December 13th, 2019, 3:28 pm ] | ||
Post subject: | Speaking of unusual power amp designs.... | ||
This one is interesting, but only the output stage. Let's see who can figure out how it actually develops output Those of you with last names starting with Berning, please wait and give others a chance before you spoil the fun. Roscoe
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Author: | dberning [ December 19th, 2019, 4:01 pm ] |
Post subject: | Re: Speaking of unusual power amp designs.... |
Considering the 1310, the reason this is so attractive is the collectors are grounded, and the transistors can be mounted on a grounded heat sink or the chassis. I have built a number of things like this to have this advantage. It often doesn't matter where you want to define your ground or signal common. David |
Author: | Roscoe Primrose [ December 19th, 2019, 6:26 pm ] |
Post subject: | Re: Speaking of unusual power amp designs.... |
Yup, both right on the money. Also, as far as the collectors being grounded, that's a big help for field repairs, don't have to worry about some ham-fisted tech screwing up the insulator during a repair. Also, looks like it would at least provide zero-signal short circuit protection. The whole "1" series, and USA series are based on this design. Don't know if any of the later QSC amps use this design or not... Roscoe |
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