I recently stumbled accross some old magazines from the early sixties.
They had a small article on transformerless power amps.
I did a quick search on the net and found the following pattent extract:
http://www.google.com/patents?id=fo1sAAAAEBAJ&dq=3092783
E.H. Krohn Power amplifier US Pattent 3.092.783
Here I read that the load is 600 Ohms; a bit unpractical nowadays.
Outout Power is more then adequate.
I keep on searching further and like to know if any one had or has experiance with this kind of amplifiers.
The field of usage is mainly Musical Instrument amplification. No HiFi.
How will this amp behave under the harsh road and stage conditions?
Cheers,
Tarzan
They had a small article on transformerless power amps.
I did a quick search on the net and found the following pattent extract:
http://www.google.com/patents?id=fo1sAAAAEBAJ&dq=3092783
E.H. Krohn Power amplifier US Pattent 3.092.783
Here I read that the load is 600 Ohms; a bit unpractical nowadays.
Outout Power is more then adequate.
I keep on searching further and like to know if any one had or has experiance with this kind of amplifiers.
The field of usage is mainly Musical Instrument amplification. No HiFi.
How will this amp behave under the harsh road and stage conditions?
Cheers,
Tarzan
Check out Bruce's amp over at Transcendent.
http://www.transcendentsound.com/T16OTL.htm
I picked up his audio book from the library Audio Reality - it's a good read, with plenty of his projects in it.
http://www.transcendentsound.com/audioreality.htm
http://www.transcendentsound.com/T16OTL.htm
I picked up his audio book from the library Audio Reality - it's a good read, with plenty of his projects in it.
http://www.transcendentsound.com/audioreality.htm
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