Early solid state power amps
When did decent solid state power amps become available? Were they direct,
capacitor or transformer coupled to the load. Back in the 60's when the
first audio amp ICs became available for battery powered radios and such,
the engineers coupled the output through a transformer! It seemed hard to
wean them off the transformer. Finally in the 70s...
John
.
Relevant Pages
- Re: Early solid state power amps
... >When did decent solid state power amps become available? ... >capacitor or transformer coupled to the load. ... MINIMUL load (the included a 4 ohm wirewound in series with the ... terminal labeled 4 ohms). ...
(rec.audio.tech) - Re: Early solid state power amps
... I still enjoy my H.H. Scott Stereomaster 384 stereo receiver at my summer ... It is all discrete device ss amplifier stages and was rated at ... > When did decent solid state power amps become available? ... > capacitor or transformer coupled to the load. ...
(rec.audio.tech) - Re: Power Supply Rectification and Smoothing
... turning the mains off and then on quickly with the transformer core ... transformer to provide a slightly higher voltage say 32V or so. ... sudden load changes. ... I think they only offer 4 different caps. ...
(sci.electronics.basics) - Re: DC to AC converter. - can this be done?
... So far he had a 6:1 transformer primary being driven by NPN-PNP totempole and an OPamp to elimiante the xover distortion. ... What he is attempting to do is to AC couple off both sides of the output coil and bring that differential signal back into to the primary side to a second opamp. ... The feedback signal will be compared by this opamp to the reference signal and any load dependant droop will be corrected out. ... I have some ideas about using a isolated power supply to generate the rails for a power opamp and us it to buffer the signal transformer. ...
(sci.electronics.design) - Re: Power Supply Rectification and Smoothing
... Consider the filter caps as if they were a 36V lead acid battery. ... This load would constitute the best output filter with the lowest ... turning the mains off and then on quickly with the transformer core ... ball park figure for a reasonably stable load regulation? ...
(sci.electronics.basics) |
|
