|Joseph Noci 1||25/08/2019 07:28:16|
|536 forum posts|
Very Nice Neil! And with 'improvements'!
Am busy trying to repair a 4KW Phonic stereo amp at the moment...All transistors, some FET's, no IC's.
Uses split supply rails as usual, but dual rail, ±55volt and ±120volt. The output stage has 16 transistors - 8NPN and 8PNP in parallel. These receive the ±55 rail when running below 1KW / 4ohms and there are some big FETs that then switch the 55volt rail out and the 120volt rails smoothly in..gives almost 4KW into 2 ohms...
13 Transistors in the input stages, 4 long tailed pairs..and 12 transistors in the output stages, excluding the 16 power output tranny's.
No scoundrels way out on this one..
We also have tons of mica here - literally mountains of it. Maybe that's why it is often dull and grey here in Swakop...Any light entering is trapped inside sheets of Mica and can never leave - out own Hotel California for light..
|XD 351||25/08/2019 08:42:48|
1309 forum posts
So now that you have it fixed will Stub be playing a few licks on YouTube?
|Nicholas Farr||25/08/2019 12:39:52|
1940 forum posts
Hi Neil, tut! tut!, fancy getting Paul's name misspelt. Threw me there for a moment, good job you got Winfield's one right.
Glad you got it fixed anyway.
P. S. sorry I couldn't resist a little banter.
Edited By Nicholas Farr on 25/08/2019 12:49:15
|Neil Wyatt||25/08/2019 14:05:06|
16415 forum posts
Sounds fun... and that's why you have such amazing night skies
|Neil Wyatt||25/08/2019 14:06:46|
16415 forum posts
|duncan webster||25/08/2019 17:49:18|
2198 forum posts
Don't give up the day job!
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