Re: Early solid state power amps

On 1/30/06 6:09 PM, in article
43deaae8$0$5922$afc38c87@xxxxxxxxxxxxxxxxxxxx, "Mr.T" <MrT@home> wrote:

>
> <dpierce@xxxxxxxxxxxxx> wrote in message
> news:1138623835.308401.292870@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> The title of the thread is VERY clearly: early solid state power amps."
>> Can you state that the IC you SEEM to remember was relevant to
>> the power amp function? Which other POWER AMPS used "audio amp
>> IC's" in the 1960's as you claim?
>
> Didn't the Crown DC300 use an IC in 1967?
> Both the DC-150 amplifier and IC-150 pre-amplifier did in 1970, for sure.
>
The 300 didn't. The 300 A did as did the D 150. Early stuff; i.e. 739's.
The IC 150 used (I believe) an LM301 in the high level portion and a
discrete circuit for the phono stage.

.

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