22.04.2012, 10:05 AM
Hallo Rumgucker,
dieses spezielle " Festival " hat folgenden
Text als Ziel der Ausschreibung:
__________________________
THE SPUD AMP
Every participant is to build a stereo power amp(or two mono blocks) with a SINGLE active
amplification stage per channel.
It is of no consequence whether that stage is single ended or push/pull in nature.
- One stage in singled ended or Push Pull topology
- Both tubes and solid state devices are permitted.
- The use of CCS' ( Constant Current Source) or voltage regulation is permitted. So we don't consider this to ruin the one amplified stage concept. Integrated Circuits are not allowed, if they violate the one stage topology. (No Gainclones for example)
- The use of input and/or output transformers is permitted
- The preamp driving the amps will have an output impedance of approx. 600 Ohms, so the input impedance of the Spud should be high (10k or more)
- Input level will be 2V eff max for full output
- Overall gain is not fixed
- The amps shall be capable of driving an 8-16ohm load
- The speaker will have at least 95dB/W/m from around 60 Hz. No active subwoofer will be used.
- Please use RCA for input and 4mm banana as output terminals for easy switching between amps
________________________
Dazu meine Frage zur Definition:
Was ist mit "a SINGLE active amplification stage"
gemeint; nur Spannungsverstärkung oder auch Stromverstärkung ?
Ist z.B. damit auch ein Kathodenfolger oder Sourcefolger
gemeint ? ( der hat aber bekanntlich keine Spannungsverstärkung )
MfG.urs
dieses spezielle " Festival " hat folgenden
Text als Ziel der Ausschreibung:
__________________________
THE SPUD AMP
Every participant is to build a stereo power amp(or two mono blocks) with a SINGLE active
amplification stage per channel.
It is of no consequence whether that stage is single ended or push/pull in nature.
- One stage in singled ended or Push Pull topology
- Both tubes and solid state devices are permitted.
- The use of CCS' ( Constant Current Source) or voltage regulation is permitted. So we don't consider this to ruin the one amplified stage concept. Integrated Circuits are not allowed, if they violate the one stage topology. (No Gainclones for example)
- The use of input and/or output transformers is permitted
- The preamp driving the amps will have an output impedance of approx. 600 Ohms, so the input impedance of the Spud should be high (10k or more)
- Input level will be 2V eff max for full output
- Overall gain is not fixed
- The amps shall be capable of driving an 8-16ohm load
- The speaker will have at least 95dB/W/m from around 60 Hz. No active subwoofer will be used.
- Please use RCA for input and 4mm banana as output terminals for easy switching between amps
________________________
Dazu meine Frage zur Definition:
Was ist mit "a SINGLE active amplification stage"
gemeint; nur Spannungsverstärkung oder auch Stromverstärkung ?
Ist z.B. damit auch ein Kathodenfolger oder Sourcefolger
gemeint ? ( der hat aber bekanntlich keine Spannungsverstärkung )
MfG.urs
) , aber übertrager usw sind erlaubt; 
.
