Carlos,
I`m sure you have built more than 100 amplifiers, that`s why you are a great philosopher too.
I`m sure you have built more than 100 amplifiers, that`s why you are a great philosopher too.
Yes...i have made a lot... 48 years doing i think... since i had 9 years old
And capturing Germanium transistors from damaged radios...the portable radios used glass transistors...you could remove the black paint and see the junction througth the glass... sometimes some transparent grease helping to transfer heat to the glass.
50 miliwatt maximum power transistors (OC71).... 10 volts maximum voltage...gain of 20 maximum... a red dot painted into the black surrounding (covering the glass... a sanded glass to help paint to be fixed).
We use to remove the paint to have a photo cell.... was nice to shut off lamps automatically during sunrise.
Old days... a lot of things to discover.... more than 100 of course.. more than 4K now a days...so many exploded... a lot of magazines with wrong schematics.... i was learning into try and error basis...this changed 10 years ago when i started to learn into Sony, Motorola and other places.
Sorry the off topic... will finish now...i was dreaming while waken up
regards,
Carlos
And capturing Germanium transistors from damaged radios...the portable radios used glass transistors...you could remove the black paint and see the junction througth the glass... sometimes some transparent grease helping to transfer heat to the glass.
50 miliwatt maximum power transistors (OC71).... 10 volts maximum voltage...gain of 20 maximum... a red dot painted into the black surrounding (covering the glass... a sanded glass to help paint to be fixed).
We use to remove the paint to have a photo cell.... was nice to shut off lamps automatically during sunrise.
Old days... a lot of things to discover.... more than 100 of course.. more than 4K now a days...so many exploded... a lot of magazines with wrong schematics.... i was learning into try and error basis...this changed 10 years ago when i started to learn into Sony, Motorola and other places.
Sorry the off topic... will finish now...i was dreaming while waken up
regards,
Carlos
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Nelson,
there are certain possibilities, how far are you prepared to go?
The input stage looks promising, still much left to do.
The output stage isn`t very exciting, I did give you a hint. you did not respond.
there are certain possibilities, how far are you prepared to go?
The input stage looks promising, still much left to do.
The output stage isn`t very exciting, I did give you a hint. you did not respond.
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